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Linus Torvalds 6419945e33 This time we have a good set of changes to the core framework that do some
general cleanups, but nothing too major. The majority of the diff goes to
 two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for
 Actions Semi so it takes up some lines to add all the different types, and
 the Qualcomm diff is there because we add support for two SoCs and it's quite
 a bit of data.
 
 Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And
 then the long tail of driver updates for various fixes and stuff follows
 after that.
 
 Core:
  - debugfs cleanups removing error checking and an unused provider API
  - Removal of a clk init typedef that isn't used
  - Usage of match_string() to simplify parent string name matching
  - OF clk helpers moved to their own file (linux/of_clk.h)
  - Make clk warnings more readable across kernel versions
 
 New Drivers:
  - Qualcomm SDM845 GCC and Video clk controllers
  - Qualcomm MSM8998 GCC
  - Actions Semi S900 SoC support
  - Nuvoton npcm750 microcontroller clks
  - Amlogic axg AO clock controller
 
 Removed Drivers:
  - Deprecated Rockchip clk-gate driver
 
 Updates:
  - debugfs functions stopped checking return values
  - Support for the MSIOF module clocks on Rensas R-Car M3-N
  - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
  - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
  - Berlin and Amlogic SPDX tagging
  - Usage of of_clk_get_parent_count() in more places
  - Proper implementation of the CDEV1/2 clocks on Tegra20
  - Allwinner H6 PRCM clock support and R40 EMAC support
  - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
  - Round closest support for meson's mpll driver
  - Support for meson8b nand clocks and gxbb video decoder clocks
  - Mediatek mali clks
  - STM32MP1 fixes
  - Uniphier LD11/LD20 stream demux system clock
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This time we have a good set of changes to the core framework that do
  some general cleanups, but nothing too major. The majority of the diff
  goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is
  introduced for Actions Semi so it takes up some lines to add all the
  different types, and the Qualcomm diff is there because we add support
  for two SoCs and it's quite a bit of data.

  Otherwise the big driver updates are on TI Davinci and Amlogic
  platforms. And then the long tail of driver updates for various fixes
  and stuff follows after that.

  Core:
   - debugfs cleanups removing error checking and an unused provider API
   - Removal of a clk init typedef that isn't used
   - Usage of match_string() to simplify parent string name matching
   - OF clk helpers moved to their own file (linux/of_clk.h)
   - Make clk warnings more readable across kernel versions

  New Drivers:
   - Qualcomm SDM845 GCC and Video clk controllers
   - Qualcomm MSM8998 GCC
   - Actions Semi S900 SoC support
   - Nuvoton npcm750 microcontroller clks
   - Amlogic axg AO clock controller

  Removed Drivers:
   - Deprecated Rockchip clk-gate driver

  Updates:
   - debugfs functions stopped checking return values
   - Support for the MSIOF module clocks on Rensas R-Car M3-N
   - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
   - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
   - Berlin and Amlogic SPDX tagging
   - Usage of of_clk_get_parent_count() in more places
   - Proper implementation of the CDEV1/2 clocks on Tegra20
   - Allwinner H6 PRCM clock support and R40 EMAC support
   - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
   - Round closest support for meson's mpll driver
   - Support for meson8b nand clocks and gxbb video decoder clocks
   - Mediatek mali clks
   - STM32MP1 fixes
   - Uniphier LD11/LD20 stream demux system clock"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits)
  clk: qcom: Export clk_fabia_pll_configure()
  clk: bcm: Update and add Stingray clock entries
  dt-bindings: clk: Update Stingray binding doc
  clk-si544: Properly round requested frequency to nearest match
  clk: ingenic: jz4770: Add 150us delay after enabling VPU clock
  clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock
  clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle
  clk: ingenic: jz4770: Change OTG from custom to standard gated clock
  clk: ingenic: Support specifying "wait for clock stable" delay
  clk: ingenic: Add support for clocks whose gate bit is inverted
  clk: use match_string() helper
  clk: bcm2835: use match_string() helper
  clk: Return void from debug_init op
  clk: remove clk_debugfs_add_file()
  clk: tegra: no need to check return value of debugfs_create functions
  clk: davinci: no need to check return value of debugfs_create functions
  clk: bcm2835: no need to check return value of debugfs_create functions
  clk: no need to check return value of debugfs_create functions
  clk: imx6: add EPIT clock support
  clk: mvebu: use correct bit for 98DX3236 NAND
  ...
2018-06-09 12:06:24 -07:00
Stephen Boyd 55913c2d33 Merge branch 'clk-imx6ul' into clk-next
* clk-imx6ul:
  clk: imx6ul: fix periph clk2 clock mux selection
2018-06-04 12:41:57 -07:00
Stephen Boyd ef1ae47094 Merge branches 'clk-imx7d', 'clk-hisi-stub', 'clk-mvebu', 'clk-imx6-epit' and 'clk-debugfs-simple' into clk-next
* clk-imx7d:
  clk: imx7d: reset parent for mipi csi root
  clk: imx7d: fix mipi dphy div parent

* clk-hisi-stub:
  clk/driver/hisi: Consolidate the Kconfig for the CLOCK_STUB

* clk-mvebu:
  clk: mvebu: use correct bit for 98DX3236 NAND

* clk-imx6-epit:
  clk: imx6: add EPIT clock support

* clk-debugfs-simple:
  clk: Return void from debug_init op
  clk: remove clk_debugfs_add_file()
  clk: tegra: no need to check return value of debugfs_create functions
  clk: davinci: no need to check return value of debugfs_create functions
  clk: bcm2835: no need to check return value of debugfs_create functions
  clk: no need to check return value of debugfs_create functions
2018-06-04 12:32:28 -07:00
Stephen Boyd fff2e33717 Merge branches 'clk-imx6sx', 'clk-imx7d-enet' and 'clk-aspeed-24' into clk-next
* clk-imx6sx:
  clk: imx6sl: correct ocram_podf clock type
  clk: imx6sx: disable unnecessary clocks during clock initialization
  clk: imx6sx: add missing lvds2 clock to the clock tree

* clk-imx7d-enet:
  ARM: dts: imx7: correct enet ipg clock
  clk: imx7d: correct enet clock CCGR registers
  clk: imx7d: correct enet phy ref clock gates

* clk-aspeed-24:
  clk: aspeed: Add 24MHz fixed clock
2018-06-04 12:32:24 -07:00
Colin Didier b1569380a6 clk: imx6: add EPIT clock support
Add EPIT clock support to the i.MX6Q clocking infrastructure.

Signed-off-by: Colin Didier <colin.didier@devialet.com>
Signed-off-by: Clément Peron <clement.peron@devialet.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 19:19:30 -07:00
Rui Miguel Silva b4f5e1ffcc clk: imx7d: reset parent for mipi csi root
To guarantee that we do not get Overflow in image FIFO the outer bandwidth has
to be faster than inputer bandwidth. For that it must be possible to set a
faster frequency clock. So set new parent to sys_pfd3 clock for the mipi csi
block.

Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:41:32 -07:00
Rui Miguel Silva 4dd5d5b520 clk: imx7d: fix mipi dphy div parent
Fix the mipi dphy root divider to mipi_dphy_pre_div, this would remove a orphan
clock and set the correct parent.

before:
cat clk_orphan_summary
                                 enable  prepare  protect
   clock                          count    count    count        rate   accuracy   phase
----------------------------------------------------------------------------------------
 mipi_dphy_post_div                   1        1        0           0          0 0
    mipi_dphy_root_clk                1        1        0           0          0 0

cat clk_dump | grep mipi_dphy
mipi_dphy_post_div                    1        1        0           0          0 0
    mipi_dphy_root_clk                1        1        0           0          0 0

after:
cat clk_dump | grep mipi_dphy
   mipi_dphy_src                     1        1        0    24000000          0 0
       mipi_dphy_cg                  1        1        0    24000000          0 0
          mipi_dphy_pre_div          1        1        0    24000000          0 0
             mipi_dphy_post_div      1        1        0    24000000          0 0
                mipi_dphy_root_clk   1        1        0    24000000          0 0

Fixes: 8f6d8094b2 ("ARM: imx: add imx7d clk tree support")
Acked-by: Dong Aisheng <Aisheng.dong@nxp.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>

Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:41:24 -07:00
Anson Huang 9c7150daff clk: imx7d: correct enet clock CCGR registers
Correct enet clock gates as below:

CCGR6: IMX7D_ENET_AXI_ROOT_CLK (enet1 and enet2 bus clocks)
CCGR112: IMX7D_ENET1_TIME_ROOT_CLK, IMX7D_ENET1_IPG_ROOT_CLK
CCGR113: IMX7D_ENET2_TIME_ROOT_CLK, IMX7D_ENET2_IPG_ROOT_CLK

Just rename unused IMX7D_ENETx_REF_ROOT_CLK for
IMX7D_ENETx_IPG_ROOT_CLK instead of adding new clocks.

Based on Andy Duan's patch from the NXP kernel tree.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:15:21 -07:00
Anson Huang f93f2ed94a clk: imx7d: correct enet phy ref clock gates
IMX7D_ENET_PHY_REF_ROOT_DIV supplies clock for PHY directly,
there is no clock gate after it, rename it to
IMX7D_ENET_PHY_REF_ROOT_CLK to avoid device tree change.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:14:32 -07:00
Anson Huang f82368dd69 clk: imx6sl: correct ocram_podf clock type
IMX6SL_CLK_OCRAM_PODF is a busy divider, its name in
CCM_CDHIPR register of Reference Manual CCM chapter
is axi_podf_busy, correct its clock type.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:10:28 -07:00
Anson Huang e912457806 clk: imx6sx: disable unnecessary clocks during clock initialization
Disable those unnecessary clocks during kernel boot up to save power,
those modules clock should be managed by modules driver in runtime.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-06-01 12:10:09 -07:00
Stefan Agner 2e5be528ab clk: imx6ull: use OSC clock during AXI rate change
On i.MX6 ULL using PLL3 seems to cause a freeze when setting
the parent to IMX6UL_CLK_PLL3_USB_OTG. This only seems to appear
since commit 6f9575e556 ("clk: imx: Add CLK_IS_CRITICAL flag
for busy divider and busy mux"), probably because the clock is
now forced to be on.

Fixes: 6f9575e55632("clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15 15:41:01 -07:00
Michael Trimarchi f5a4670de9 clk: imx: Add new clo01 and clo2 controlled by CCOSR
osc->cko2_sel->cko2_podf->clk_cko2->clk_cko

Example of usage to provide clock to the sgtl5000

codec: sgtl5000@0a {
	compatible = "fsl,sgtl5000";
	reg = <0x0a>;
	clocks = <&clks IMX6UL_CLK_OSC>;
	#sound-dai-cells = <0>;
	clocks = <&clks IMX6UL_CLK_CKO>;
	assigned-clocks = <&clks IMX6UL_CLK_CKO2_SEL>,
			  <&clks IMX6UL_CLK_CKO2_PODF>,
			  <&clks IMX6UL_CLK_CKO2>,
			  <&clks IMX6UL_CLK_CKO>;
	assigned-clock-parents = <&clks IMX6UL_CLK_OSC>,
				 <&clks IMX6UL_CLK_CKO2_SEL>,
				 <&clks IMX6UL_CLK_CKO2_PODF>,
				 <&clks IMX6UL_CLK_CKO2>;
	clock-names = "mclk";
	wlf,shared-lrclk;

Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Tested-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15 15:26:33 -07:00
Anson Huang 5cc73ff7a3 clk: imx6sx: add missing lvds2 clock to the clock tree
i.MX6SX has lvds2 (analog clock2), an I/O clock like lvds1.
And this lvds2, along with lvds1, can be used to provide
external clock source to the internal pll, such as pll4_audio
and pll5_video.

This patch mainly adds the lvds2 to the clock tree and fix its
relationship with pll accordingly.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-04 19:56:58 -07:00
Stefan Agner a43e86833b clk: imx6ul: fix periph clk2 clock mux selection
According to the data sheet the 3rd choice is the bypass clock
of pll2. This should not have any effect in practice as this
selection is not used currently.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-04 19:55:15 -07:00
Linus Torvalds ca4e7c5120 The large diff this time around is from the addition of a new clk driver
for the TI Davinci family of SoCs. So far those clks have been supported
 with a custom implementation of the clk API in the arch port instead of in
 the CCF. With this driver merged we're one step closer to having a single
 clk API implementation.
 
 The other large diff is from the Amlogic clk driver that underwent some
 major surgery to use regmap. Beyond that, the biggest hitter is Samsung
 which needed some reworks to properly handle clk provider power domains
 and a bunch of PLL rate updates.
 
 The core framework was fairly quiet this round, just getting some cleanups
 and small fixes for some of the more esoteric features. And the usual
 set of driver non-critical fixes, cleanups, and minor additions are here as
 well.
 
 Core:
  - Rejig clk_ops::init() to be a little earlier for phase/accuracy ops
  - debugfs ops macroized to shave some lines of boilerplate code
  - Always calculate the phase instead of caching it in clk_get_phase()
  - More __must_check on bulk clk APIs
 
 New Drivers:
  - TI's Davinci family of SoCs
  - Intel's Stratix10 SoC
  - stm32mp157 SoC
  - Allwinner H6 CCU
  - Silicon Labs SI544 clock generator chip
  - Renesas R-Car M3-N and V3H SoCs
  - i.MX6SLL SoCs
 
 Removed Drivers:
  - ST-Ericsson AB8540/9540
 
 Updates:
  - Mediatek MT2701 and MT7622 audsys support and MT2712 updates
  - STM32F469 DSI and STM32F769 sdmmc2 support
  - GPIO clks can sleep now
  - Spreadtrum SC9860 RTC clks
  - Nvidia Tegra MBIST workarounds and various minor fixes
  - Rockchip phase handling fixes and a memory leak plugged
  - Renesas drivers switch to readl/writel from clk_readl/clk_writel
  - Renesas gained CPU (Z/Z2) and watchdog support
  - Rockchip rk3328 display clks and rk3399 1.6GHz PLL support
  - Qualcomm PM8921 PMIC XO buffers
  - Amlogic migrates to regmap APIs
  - TI Keystone clk latching support
  - Allwinner H3 and H5 video clk fixes
  - Broadcom BCM2835 PLLs needed another bit to enable
  - i.MX6SX CKO mux fix and i.MX7D Video PLL divider fix
  - i.MX6UL/ULL epdc_podf support
  - Hi3798CV200 COMBPHY0 and USB2_OTG_UTMI and phase support for eMMC
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The large diff this time around is from the addition of a new clk
  driver for the TI Davinci family of SoCs. So far those clks have been
  supported with a custom implementation of the clk API in the arch port
  instead of in the CCF. With this driver merged we're one step closer
  to having a single clk API implementation.

  The other large diff is from the Amlogic clk driver that underwent
  some major surgery to use regmap. Beyond that, the biggest hitter is
  Samsung which needed some reworks to properly handle clk provider
  power domains and a bunch of PLL rate updates.

  The core framework was fairly quiet this round, just getting some
  cleanups and small fixes for some of the more esoteric features. And
  the usual set of driver non-critical fixes, cleanups, and minor
  additions are here as well.

  Core:
   - Rejig clk_ops::init() to be a little earlier for phase/accuracy ops
   - debugfs ops macroized to shave some lines of boilerplate code
   - Always calculate the phase instead of caching it in clk_get_phase()
   - More __must_check on bulk clk APIs

  New Drivers:
   - TI's Davinci family of SoCs
   - Intel's Stratix10 SoC
   - stm32mp157 SoC
   - Allwinner H6 CCU
   - Silicon Labs SI544 clock generator chip
   - Renesas R-Car M3-N and V3H SoCs
   - i.MX6SLL SoCs

  Removed Drivers:
   - ST-Ericsson AB8540/9540

  Updates:
   - Mediatek MT2701 and MT7622 audsys support and MT2712 updates
   - STM32F469 DSI and STM32F769 sdmmc2 support
   - GPIO clks can sleep now
   - Spreadtrum SC9860 RTC clks
   - Nvidia Tegra MBIST workarounds and various minor fixes
   - Rockchip phase handling fixes and a memory leak plugged
   - Renesas drivers switch to readl/writel from clk_readl/clk_writel
   - Renesas gained CPU (Z/Z2) and watchdog support
   - Rockchip rk3328 display clks and rk3399 1.6GHz PLL support
   - Qualcomm PM8921 PMIC XO buffers
   - Amlogic migrates to regmap APIs
   - TI Keystone clk latching support
   - Allwinner H3 and H5 video clk fixes
   - Broadcom BCM2835 PLLs needed another bit to enable
   - i.MX6SX CKO mux fix and i.MX7D Video PLL divider fix
   - i.MX6UL/ULL epdc_podf support
   - Hi3798CV200 COMBPHY0 and USB2_OTG_UTMI and phase support for eMMC"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (233 commits)
  clk: davinci: add a reset lookup table for psc0
  clk: imx: add clock driver for imx6sll
  dt-bindings: imx: update clock doc for imx6sll
  clk: imx: add new gate/gate2 wrapper funtion
  clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux
  clk: cs2000: set pm_ops in hibernate-compatible way
  clk: bcm2835: De-assert/assert PLL reset signal when appropriate
  clk: imx7d: Move clks_init_on before any clock operations
  clk: imx7d: Correct ahb clk parent select
  clk: imx7d: Correct dram pll type
  clk: imx7d: Add USB clock information
  clk: socfpga: stratix10: add clock driver for Stratix10 platform
  dt-bindings: documentation: add clock bindings information for Stratix10
  clk: ti: fix flag space conflict with clkctrl clocks
  clk: uniphier: add additional ethernet clock lines for Pro4
  clk: uniphier: add SATA clock control support
  clk: uniphier: add PCIe clock control support
  clk: Add driver for the si544 clock generator chip
  clk: davinci: Remove redundant dev_err calls
  clk: uniphier: add ethernet clock control support for PXs3
  ...
2018-04-13 15:51:06 -07:00
Stephen Boyd a339bdf64a Merge branches 'clk-stratix10', 'clk-imx', 'clk-bcm', 'clk-cs2000' and 'clk-imx6sll' into clk-next
* clk-stratix10:
  clk: socfpga: stratix10: add clock driver for Stratix10 platform
  dt-bindings: documentation: add clock bindings information for Stratix10

* clk-imx:
  clk: imx7d: Move clks_init_on before any clock operations
  clk: imx7d: Correct ahb clk parent select
  clk: imx7d: Correct dram pll type
  clk: imx7d: Add USB clock information
  clk: imx: pllv2: avoid using uninitialized values
  clk: imx6ull: Add epdc_podf instead of sim_podf
  clk: imx: imx7d: correct video pll clock tree
  clk: imx: imx7d: add the Keypad Port module clock
  clk: imx7d: add CAAM clock
  clk: imx: imx7d: add the snvs clock
  clk: imx: imx6sx: update cko mux options

* clk-bcm:
  clk: bcm2835: De-assert/assert PLL reset signal when appropriate

* clk-cs2000:
  clk: cs2000: set pm_ops in hibernate-compatible way

* clk-imx6sll:
  clk: imx: add clock driver for imx6sll
  dt-bindings: imx: update clock doc for imx6sll
  clk: imx: add new gate/gate2 wrapper funtion
  clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux
2018-04-06 13:22:12 -07:00
Bai Ping 4a5f720b65 clk: imx: add clock driver for imx6sll
Add clk driver support for imx6sll.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 11:27:27 -07:00
Bai Ping 2b18cc1f12 clk: imx: add new gate/gate2 wrapper funtion
Add new gate/gate2 wrapper function to register clocks with optional flags.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 11:27:25 -07:00
Bai Ping 6f9575e556 clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux
The busy divider and busy mux is actually used by the system critical clocks,
so add 'CLK_IS_CRITICAL' to clocks registered with these two type.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 11:27:24 -07:00
Dong Aisheng 8d41e6538c clk: imx7d: Move clks_init_on before any clock operations
For init on clocks we should move it at the first place in imx7d_clocks_init()
before any clock operations, else the clock operation may fail in case the clock
is still not on.

Acked-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@freescale.com>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Irina Tirdea <irina.tirdea@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 10:14:04 -07:00
Anson Huang a12ec8b653 clk: imx7d: Correct ahb clk parent select
Design team change the ahb's clk parent options but
did NOT update the DOC accordingly in time, so the
AHB/IPG's clk rate in clk tree is incorrect, AHB is
67.5MHz and IPG is 33.75MHz, but using scope to
monitor them, they are actually 135MHz and 67.5MHz,
update the clk parent option to make clk tree info
correct.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Irina Tirdea <irina.tirdea@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 10:14:03 -07:00
Anson Huang afe7c08a03 clk: imx7d: Correct dram pll type
DRAM PLL is a audio/video type PLL, need to correct
it to get correct ops of PLL.

There is a test_div placed before DRAM PLL's gate, so
add this test div clk.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Irina Tirdea <irina.tirdea@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 10:13:59 -07:00
Peter Chen 5fcb4c76bb clk: imx7d: Add USB clock information
Add USB clock information, the pll_usb_main_clk is USB_PLL at CCM
which is the output of USBOTG2 PHY.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Irina Tirdea <irina.tirdea@nxp.com>
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 10:13:55 -07:00
Linus Torvalds b240b419db ARM: SoC device tree updates for 4.17
This is the usual set of changes for device trees, with over 700
 non-merged changesets. There is an ongoing set of dtc warning fixes and
 the usual bugfixes, cleanups and added device support.
 
 The most interesting bit as usual is support for new machines listed
 below:
 
 - The Allwinner H6 makes its debut with the Pine-H64 board, and we get
   two new machines based on its older siblings: the H5 based OrangePi
   Zero+ and the A64 based Teres-I Laptop from Olimex. On the 32-bit side,
   we add The Olimex som204 based on Allwinner A20, and the Banana Pi M2
   Zero development board (based on H2).
 
 - NVIDIA adds support for Tegra194 aka "Xavier", plus their p2972
   development board and p2888 CPU module.
 
 - The Nuvoton npcm750 is a BMC that was newly added, for now we only
   support running on the evaluation board.
 
 - STmicroelectronics stm32 gains support for the stm32mp157c and two
   evaluation boards.
 
 - The Toradex Colibri board family grows a few members based on the
   i.MX6ULL variant.
 
 - The Advantec DMS-BA16 is a Qseven module using the NXP i.MX6
   family of chips.
 
 - The Phytec phyBOARD Mira is a family of industrial boards based on
   i.MX6. For now, four models get added.
 
 - TI am335x based PDU-001 is an industrial embedded machine used for
   traffic monitoring
 
 - The Aspeed platform now supports running on the BMC on the Qualcomm
   Centriq 2400 server
 
 - Samsung Exynos4 based Galaxy S3 is a family of mobile phones Qualcomm
   msm8974 based Galaxy S5 is a rather different phone made by the same
   company.
 
 - The Xilinx Zynq and ZynqMP platforms now gained a lot of dts file
   for the various boards made by Xilinx themselves, as well as the
   Digilent Zybo Z7.
 
 - The ARM Versatile family now supports the "IB2" interface board.
 
 - The Renesas H2 based "Stout" and the H3 based Salvator-X are more
   evaluation boards named after a kind of beer, as most of them are.
   The r8a77980 (V3H) based "Condor" apparently doesn't follow that
   tradition. ;-)
 
 - ROC-RK3328-CC is a simple developement board from the Libre Computer
   Project, based on the Rockchips RK3328 SoC
 
 - Haiku is another development board plus Qseven module based on Rockchips
   RK3368 and made by Theobroma Systems.
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree updates from Arnd Bergmann:
 "This is the usual set of changes for device trees, with over 700
  non-merged changesets. There is an ongoing set of dtc warning fixes
  and the usual bugfixes, cleanups and added device support.

  The most interesting bit as usual is support for new machines listed
  below:

   - The Allwinner H6 makes its debut with the Pine-H64 board, and we
     get two new machines based on its older siblings: the H5 based
     OrangePi Zero+ and the A64 based Teres-I Laptop from Olimex. On the
     32-bit side, we add The Olimex som204 based on Allwinner A20, and
     the Banana Pi M2 Zero development board (based on H2).

   - NVIDIA adds support for Tegra194 aka "Xavier", plus their p2972
     development board and p2888 CPU module.

   - The Nuvoton npcm750 is a BMC that was newly added, for now we only
     support running on the evaluation board.

   - STmicroelectronics stm32 gains support for the stm32mp157c and two
     evaluation boards.

   - The Toradex Colibri board family grows a few members based on the
     i.MX6ULL variant.

   - The Advantec DMS-BA16 is a Qseven module using the NXP i.MX6 family
     of chips.

   - The Phytec phyBOARD Mira is a family of industrial boards based on
     i.MX6. For now, four models get added.

   - TI am335x based PDU-001 is an industrial embedded machine used for
     traffic monitoring

   - The Aspeed platform now supports running on the BMC on the Qualcomm
     Centriq 2400 server

   - Samsung Exynos4 based Galaxy S3 is a family of mobile phones
     Qualcomm msm8974 based Galaxy S5 is a rather different phone made
     by the same company.

   - The Xilinx Zynq and ZynqMP platforms now gained a lot of dts file
     for the various boards made by Xilinx themselves, as well as the
     Digilent Zybo Z7.

   - The ARM Versatile family now supports the "IB2" interface board.

   - The Renesas H2 based "Stout" and the H3 based Salvator-X are more
     evaluation boards named after a kind of beer, as most of them are.
     The r8a77980 (V3H) based "Condor" apparently doesn't follow that
     tradition. ;-)

   - ROC-RK3328-CC is a simple developement board from the Libre
     Computer Project, based on the Rockchips RK3328 SoC

   - Haiku is another development board plus Qseven module based on
     Rockchips RK3368 and made by Theobroma Systems"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (701 commits)
  arm: dts: modify Nuvoton NPCM7xx device tree structure
  arm: dts: modify Makefile NPCM750 configuration name
  arm: dts: modify clock binding in NPCM750 device tree
  arm: dts: modify timer register size in NPCM750 device tree
  arm: dts: modify UART compatible name in NPCM750 device tree
  arm: dts: add watchdog device to NPCM750 device tree
  arm64: dts: uniphier: add ethernet node for PXs3
  ARM: dts: uniphier: add pinctrl groups of ethernet for second instance
  arm: dts: kirkwood*.dts: use SPDX-License-Identifier for board using GPL-2.0+
  arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0+/MIT
  arm: dts: kirkwood*.dts: use SPDX-License-Identifier for boards using GPL-2.0
  arm: dts: armada-385-turris-omnia: use SPDX-License-Identifier
  arm: dts: armada-385-db-ap: use SPDX-License-Identifier
  arm: dts: armada-388-rd: use SPDX-License-Identifier
  arm: dts: armada-xp-db-xc3-24g4xg: use SPDX-License-Identifier
  arm: dts: armada-xp-db-dxbc2: use SPDX-License-Identifier
  arm: dts: armada-370-db: use SPDX-License-Identifier
  arm: dts: armada-*.dts: use SPDX-License-Identifier for most of the Armada based board
  arm: dts: armada-xp-98dx: use SPDX-License-Identifier for prestara 98d SoCs
  arm: dts: armada-*.dtsi: use SPDX-License-Identifier for most of the Armada SoCs
  ...
2018-04-05 21:18:09 -07:00
Lucas Stach 93abad369a clk: imx: pllv2: avoid using uninitialized values
Forward the errors returned by __clk_pllv2_set_rate() in the recalc rate
function, to avoid using uninitialized values for the rate calculation.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-16 15:40:41 -07:00
Stephen Boyd cc4d07a411 i.MX clock misc updates for 4.17:
- A correction on i.MX6SX CKO clock mux options.
  - A fix on i.MX7D Video PLL clock tree to include the missing dividers.
  - Update i.MX6UL/ULL clock driver to add epdc_podf instead of sim_podf
    clock for i.MX6ULL.
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Merge tag 'clk-imx-4.17-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-imx

Pull i.MX clock misc updates from Shawn Guo:

 - A correction on i.MX6SX CKO clock mux options.
 - A fix on i.MX7D Video PLL clock tree to include the missing dividers.
 - Update i.MX6UL/ULL clock driver to add epdc_podf instead of sim_podf
   clock for i.MX6ULL.

* tag 'clk-imx-4.17-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  clk: imx6ull: Add epdc_podf instead of sim_podf
  clk: imx: imx7d: correct video pll clock tree
  clk: imx: imx6sx: update cko mux options
2018-03-14 15:14:08 -07:00
Leonard Crestez a5510399e9 clk: imx6ull: Add epdc_podf instead of sim_podf
This is one of the differences between 6ul and 6ull: imx6ull has no sim
but has epdc and this clock is redefined on the same bit.

This can be verified in the Reference Manuals.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-03-13 09:03:14 +08:00
Anson Huang b716aad97e clk: imx: imx7d: correct video pll clock tree
There is a test divider and post divider in video PLL,
test divider is placed before post divider, all clocks
that can select parent from video PLL should be from
post divider, NOT from pll_video_main, below are
clock tree dump before and after this patch:

Before:
pll_video_main
   pll_video_main_bypass
      pll_video_main_clk
         lcdif_pixel_src
            lcdif_pixel_cg
               lcdif_pixel_pre_div
                  lcdif_pixel_post_div
                     lcdif_pixel_root_clk
After:
pll_video_main
   pll_video_main_bypass
      pll_video_main_clk
         pll_video_test_div
            pll_video_post_div
               lcdif_pixel_src
                  lcdif_pixel_cg
                     lcdif_pixel_pre_div
                        lcdif_pixel_post_div
                           lcdif_pixel_root_clk

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-03-01 08:13:38 +08:00
Stefan Agner 1691cc375a clk: imx: imx7d: add the Keypad Port module clock
According to the i.MX7D Reference Manual, the Keypad Port module
(KPP) requires this clock gate to be enabled.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-02-28 14:43:00 +08:00
Rui Miguel Silva baf15cbf54 clk: imx7d: add CAAM clock
Add CAAM clock so that we could use the Cryptographic Acceleration and
Assurance Module (CAAM) hardware block.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: "Horia Geantă" <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-02-28 09:17:41 +08:00
Anson Huang d931ba53e0 clk: imx: imx7d: add the snvs clock
According to the i.MX7D Reference Manual,
SNVS block has a clock gate, accessing SNVS block
would need this clock gate to be enabled, add it
into clock tree so that SNVS module driver can
operate this clock gate.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-02-22 17:46:58 +08:00
Anson Huang 756a08c360 clk: imx: imx6sx: update cko mux options
According to latest reference manual (Rev.2, 9/2017),
previous CKO1/2's mux options are incorrect, update
them.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-02-22 11:49:53 +08:00
Fabio Estevam a275b31533 clk: imx51-imx53: Fix UART4/5 registration on i.MX50 and i.MX53
Since commit 59dc3d8c86 ("clk: imx51: uart4, uart5 gates only exist on
imx50, imx53") the following warnings are seen on i.MX53:

[    2.776190] ------------[ cut here ]------------
[    2.780948] WARNING: CPU: 0 PID: 1 at ../drivers/clk/clk.c:811 clk_core_disable+0xc4/0xe0
[    2.789145] Modules linked in:
[    2.792236] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.15.0-rc7-next-20180115 #1
[    2.799735] Hardware name: Freescale i.MX53 (Device Tree Support)
[    2.805845] Backtrace:
[    2.808329] [<c010d1a0>] (dump_backtrace) from [<c010d460>] (show_stack+0x18/0x1c)
[    2.815919]  r7:00000000 r6:60000093 r5:00000000 r4:c10798d4
[    2.821607] [<c010d448>] (show_stack) from [<c0a353ec>] (dump_stack+0xb4/0xe8)
[    2.828854] [<c0a35338>] (dump_stack) from [<c0126144>] (__warn+0xf0/0x11c)
[    2.835837]  r9:00000000 r8:0000032b r7:00000009 r6:c0d429f8 r5:00000000 r4:00000000
[    2.843601] [<c0126054>] (__warn) from [<c0126288>] (warn_slowpath_null+0x44/0x50)
[    2.851191]  r8:c1008908 r7:c0e08874 r6:c04bfac8 r5:0000032b r4:c0d429f8
[    2.857913] [<c0126244>] (warn_slowpath_null) from [<c04bfac8>] (clk_core_disable+0xc4/0xe0)
[    2.866369]  r6:dc02bb00 r5:dc02a980 r4:dc02a980
[    2.871011] [<c04bfa04>] (clk_core_disable) from [<c04c0e54>] (clk_core_disable_lock+0x20/0x2c)
[    2.879726]  r5:dc02a980 r4:80000013
[    2.883323] [<c04c0e34>] (clk_core_disable_lock) from [<c04c0e84>] (clk_disable+0x24/0x28)
[    2.891604]  r5:c0f6b3e4 r4:0000001c
[    2.895209] [<c04c0e60>] (clk_disable) from [<c0f2340c>] (imx_clk_disable_uart+0x50/0x68)
[    2.903412] [<c0f233bc>] (imx_clk_disable_uart) from [<c010277c>] (do_one_initcall+0x50/0x19c)
[    2.912043]  r7:c0e08874 r6:c0f63854 r5:c0f233bc r4:ffffe000
[    2.917726] [<c010272c>] (do_one_initcall) from [<c0f00f00>] (kernel_init_freeable+0x118/0x1d0)
[    2.926447]  r9:c0f63858 r8:000000f0 r7:c0e08874 r6:c0f63854 r5:c107b500 r4:c0f75260
[    2.934220] [<c0f00de8>] (kernel_init_freeable) from [<c0a4a5f0>] (kernel_init+0x10/0x118)
[    2.942506]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0a4a5e0
[    2.950351]  r4:00000000
[    2.952908] [<c0a4a5e0>] (kernel_init) from [<c01010b4>] (ret_from_fork+0x14/0x20)
[    2.960496] Exception stack(0xdc05dfb0 to 0xdc05dff8)
[    2.965569] dfa0:                                     00000000 00000000 00000000 00000000
[    2.973768] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    2.981965] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    2.988596]  r5:c0a4a5e0 r4:00000000
[    2.992188] ---[ end trace 346e26f708876edd ]---
[    2.997420] ------------[ cut here ]------------

In order to fix the problem UART4/5 registration needs to happen only on
i.MX50 and i.MX53.

So let mx51_clocks_init() register only UART1-3 and
mx50_clocks_init()/mx53_clocks_init register all the UART1-5 ports.

Fixes: 59dc3d8c86 ("clk: imx51: uart4, uart5 gates only exist on imx50, imx53")
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-02-22 11:27:30 +08:00
Philipp Zabel 59dc3d8c86 clk: imx51: uart4, uart5 gates only exist on imx50, imx53
i.MX51 only has 3 UARTs and no CCGR7 register. In place of the CCGR7
register on i.MX50/i.MX53 that contains the ipg and per clock gates
for UARTs 4 and 5, on i.MX51 there is the CMEOR register.

Without this patch, the code disabling the UART clocks would also clear
the mod_en_ov_vpu bit in the CMEOR register, among others, which causes
register accesses to the VPU to lock up the system.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-12-21 15:59:05 -08:00
Linus Torvalds fc35c1966e We have two changes to the core framework this time around. The first being a
large change that introduces runtime PM support to the clk framework. Now we
 properly call runtime PM operations on the device providing a clk when the clk
 is in use. This helps on SoCs where the clks provided by a device need
 something to be powered on before using the clks, like power domains or
 regulators. It also helps power those things down when clks aren't in use. The
 other core change is a devm API addition for clk providers so we can get rid of
 a bunch of clk driver remove functions that are just doing
 of_clk_del_provider().
 
 Outside of the core, we have the usual addition of clk drivers and smattering
 of non-critical fixes to existing drivers. The biggest diff is support for
 Mediatek MT2712 and MT7622 SoCs, but those patches really just add a bunch
 of data.
 
 By the way, we're trying something new here where we build the tree up with
 topic branches. We plan to work this into our workflow so that we don't step
 on each other's toes, and so the fixes branch can be merged on an as-needed
 basis.
 
 Core:
  - Runtime PM support for clk providers
  - devm API for of_clk_add_hw_provider()
 
 New Drivers:
  - Mediatek MT2712 and MT7622
  - Renesas R-Car V3M SoC
 
 Updates:
  - Runtime PM support for Samsung exynos5433/exynos4412 providers
  - Removal of clkdev aliases on Samsung SoCs
  - Convert clk-gpio to use gpio descriptors
  - Various driver cleanups to match kernel coding style
  - Amlogic Video Processing Unit VPU and VAPB clks
  - Sigma-delta modulation for Allwinner audio PLLs
  - Allwinner A83t Display clks
  - Support for the second display unit clock on Renesas RZ/G1E
  - Suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
  - New clock ids for Rockchip rk3188 and rk3368 SoCs
  - Various 'const' markings on clk_ops structures
  - RPM clk support on Qualcomm MSM8996/MSM8660 SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "We have two changes to the core framework this time around.

  The first being a large change that introduces runtime PM support to
  the clk framework. Now we properly call runtime PM operations on the
  device providing a clk when the clk is in use. This helps on SoCs
  where the clks provided by a device need something to be powered on
  before using the clks, like power domains or regulators. It also helps
  power those things down when clks aren't in use.

  The other core change is a devm API addition for clk providers so we
  can get rid of a bunch of clk driver remove functions that are just
  doing of_clk_del_provider().

  Outside of the core, we have the usual addition of clk drivers and
  smattering of non-critical fixes to existing drivers. The biggest diff
  is support for Mediatek MT2712 and MT7622 SoCs, but those patches
  really just add a bunch of data.

  By the way, we're trying something new here where we build the tree up
  with topic branches. We plan to work this into our workflow so that we
  don't step on each other's toes, and so the fixes branch can be merged
  on an as-needed basis.

  Summary:

  Core:
   - runtime PM support for clk providers
   - devm API for of_clk_add_hw_provider()

  New Drivers:
   - Mediatek MT2712 and MT7622
   - Renesas R-Car V3M SoC

  Updates:
   - runtime PM support for Samsung exynos5433/exynos4412 providers
   - removal of clkdev aliases on Samsung SoCs
   - convert clk-gpio to use gpio descriptors
   - various driver cleanups to match kernel coding style
   - Amlogic Video Processing Unit VPU and VAPB clks
   - sigma-delta modulation for Allwinner audio PLLs
   - Allwinner A83t Display clks
   - support for the second display unit clock on Renesas RZ/G1E
   - suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
   - new clock ids for Rockchip rk3188 and rk3368 SoCs
   - various 'const' markings on clk_ops structures
   - RPM clk support on Qualcomm MSM8996/MSM8660 SoCs"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
  clk: stm32h7: fix test of clock config
  clk: pxa: fix building on older compilers
  clk: sunxi-ng: a83t: Fix i2c buses bits
  clk: ti: dra7-atl-clock: fix child-node lookups
  clk: qcom: common: fix legacy board-clock registration
  clk: uniphier: fix DAPLL2 clock rate of Pro5
  clk: uniphier: fix parent of miodmac clock data
  clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu'
  clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep()
  clk: hi3660: fix incorrect uart3 clock freqency
  clk: kona-setup: Delete error messages for failed memory allocations
  ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
  clk: cdce925: remove redundant check for non-null parent_name
  clk: versatile: Improve sizeof() usage
  clk: versatile: Delete error messages for failed memory allocations
  clk: ux500: Improve sizeof() usage
  clk: ux500: Delete error messages for failed memory allocations
  clk: spear: Delete error messages for failed memory allocations
  clk: ti: Delete error messages for failed memory allocations
  clk: mmp: Adjust checks for NULL pointers
  ...
2017-11-17 20:04:24 -08:00
Stephen Boyd eed58151d6 Merge branch 'clk-imx' into clk-next
* clk-imx:
  clk: imx: imx7d: Remove ARM_M0 clock
  clk: imx: imx7d: Fix parent clock for OCRAM_CLK
  clk: imx: clk-imx6ul: allow lcdif_pre_sel to change parent rate
  clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
2017-11-14 10:07:43 -08:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Adriana Reus 259bc28306 clk: imx: imx7d: Remove ARM_M0 clock
IMX7d does not have an M0 Core and this particular
clock doesn't seem connected to anything else.
Remove this entry from the CCM driver.

Signed-off-by: Adriana Reus <adriana.reus@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 00:26:18 -07:00
Adriana Reus edc5a8e754 clk: imx: imx7d: Fix parent clock for OCRAM_CLK
The parent of OCRAM_CLK should be axi_main_root_clk
and not axi_post_div.

before:

    axi_src                     1       1       332307692       0 0
      axi_cg                    1       1       332307692       0 0
        axi_pre_div             1       1       332307692       0 0
          axi_post_div          1       1       332307692       0 0
            ocram_clk           0       0       332307692       0 0
            main_axi_root_clk   1       1       332307692       0 0

after:

    axi_src                     1       1       332307692       0 0
      axi_cg                    1       1       332307692       0 0
        axi_pre_div             1       1       332307692       0 0
          axi_post_div          1       1       332307692       0 0
            main_axi_root_clk   1       1       332307692       0 0
              ocram_clk         0       0       332307692       0 0

Reference Doc: i.MX 7D Reference Manual - Chap 5, p 516
(https://www.nxp.com/docs/en/reference-manual/IMX7DRM.pdf)

Fixes: 8f6d8094b2 ("ARM: imx: add imx7d clk tree support")
Signed-off-by: Adriana Reus <adriana.reus@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 00:26:14 -07:00
Philipp Zabel 7f218065c1 clk: imx: clk-imx6ul: allow lcdif_pre_sel to change parent rate
Allowing the lcdif_pre_sel to propagate rate changes to its parent PLL
allows more fine grained control over the LCDIF pixel clock rate.

For example, the Innovision AT043TN24 LCD panel described in the
imx6ul-14x14-evk device tree requires a 9 MHz pixel clock.
Before this patch, the lcdif_pre_sel clock rate is fixed, and just
setting the lcdif_pred and lcdif_podf dividers only allows to get as
close as about 8.44 MHz:

    pll3                                  1            1   480000000 0 0
       pll3_bypass                        1            1   480000000 0 0
	  pll3_usb_otg                    1            1   480000000 0 0
	     pll3_pfd1_540m               1            1   540000000 0 0
		lcdif_pre_sel             1            1   540000000 0 0
		   lcdif_pred             1            1    67500000 0 0
		      lcdif_podf           1            1     8437500 0 0
			 lcdif_pix           1            1     8437500 0 0

Once lcdif_pre_sel is allowed to propagate rate requests to its parent,
the actual pixel clock matches the requested value:

    pll3                                  1            1   480000000 0 0
       pll3_bypass                        1            1   480000000 0 0
	  pll3_usb_otg                    1            1   480000000 0 0
	     pll3_pfd1_540m               1            1   288000000 0 0
		lcdif_pre_sel             1            1   288000000 0 0
		   lcdif_pred             1            1    36000000 0 0
		      lcdif_podf           1            1     9000000 0 0
                         lcdif_pix           1            1     9000000 0 0

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 00:25:48 -07:00
Sébastien Szymanski c68ee58d9e clk: imx6: refine hdmi_isfr's parent to make HDMI work on i.MX6 SoCs w/o VPU
On i.MX6 SoCs without VPU (in my case MCIMX6D4AVT10AC), the hdmi driver
fails to probe:

[    2.540030] dwhdmi-imx 120000.hdmi: Unsupported HDMI controller
(0000:00:00)
[    2.548199] imx-drm display-subsystem: failed to bind 120000.hdmi
(ops dw_hdmi_imx_ops): -19
[    2.557403] imx-drm display-subsystem: master bind failed: -19

That's because hdmi_isfr's parent, video_27m, is not correctly ungated.
As explained in commit 5ccc248cc5 ("ARM: imx6q: clk: Add support for
mipi_core_cfg clock as a shared clock gate"), video_27m is gated by
CCM_CCGR3[CG8].

On i.MX6 SoCs with VPU, the hdmi is working thanks to the
CCM_CMEOR[mod_en_ov_vpu] bit which makes the video_27m ungated whatever
is in CCM_CCGR3[CG8]. The issue can be reproduced by setting
CCMEOR[mod_en_ov_vpu] to 0.

Make the HDMI work in every case by setting hdmi_isfr's parent to
mipi_core_cfg.

Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 00:25:34 -07:00
Bhumika Goyal fa1da981f5 clk: imx: make clk_ops const
Make these const as they are only stored in the const field of a
clk_init_data structure.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-01 23:25:49 -07:00
Lucas Stach fa0abb18d9 clk: imx51: propagate rate across ipu_di*_sel
This propagates rate requests from the display interface to the divider
or PLL output, allowing to hit the required display rate in many more
cases.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-By: Wladimir J. van der Laan <laanwj@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 11:30:47 -07:00
Arvind Yadav fdda6ee947 clk: imx: constify clk_div_table
clk_div_table are not supposed to change at runtime. All functions
working with clk_div_table provided by <linux/clk-provider.h> work
with const clk_div_table. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:30:27 -07:00
Stefan Agner 22039d150f clk: imx7d: create clocks behind rawnand clock gate
The rawnand clock gate gates two clocks, NAND_USDHC_BUS_CLK_ROOT
and NAND_CLK_ROOT. However, the gate has been in the chain of the
latter only. This does not allow to use the NAND_USDHC_BUS_CLK_ROOT
only, e.g. as required by APBH-Bridge-DMA.

Add new clocks which represent the clock after the gate, and use a
shared clock gate to correctly model the hardware.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:41 -07:00
Fabio Estevam b608a89221 clk: imx7d: Fix the DDR PLL enable bit
Commit ad14972422 ("clk: imx7d: Fix the powerdown bit location
of PLL DDR") used the incorrect bit for the IMX_PLLV3_DDR_IMX7 case.

Fix it accordingly to avoid a kernel hang.

Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-06 17:42:41 -07:00
Fabio Estevam ad14972422 clk: imx7d: Fix the powerdown bit location of PLL DDR
According to the MX7D Reference Manual the powerdown bit of
CCM_ANALOG_PLL_DDRn register is bit 20, so fix it accordingly.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-01 00:25:38 -07:00
Stefan Agner e24f5287cd clk: imx7d: fix USDHC NAND clock
The USDHC NAND root clock is not gated by any CCM clock gate. Remove
the bogus gate definition.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:44:14 -07:00
Dong Aisheng 40e00eff79 clk: imx7d: add the missing ipg_root_clk
Add the missing ipg_root_clk which actually is already used by many
orphan clks in current tree.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-19 09:10:23 -07:00