A few patches to fix two minor bugs, and to introduce a schemas for

our device tree bindings.
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Merge tag 'sunxi-clk-for-5.3-201906210814' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner

Pull Allwinner clk driver updates from Maxime Ripard:

 - A few patches to fix two minor bugs
 - Introduce a schema for our device tree bindings

* tag 'sunxi-clk-for-5.3-201906210814' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  dt-bindings: clk: Convert Allwinner CCU to a schema
  clk: sunxi-ng: sun50i-h6-r: Fix incorrect W1 clock gate register
  clk-sunxi: fix a missing-check bug in sunxi_divs_clk_setup()
This commit is contained in:
Stephen Boyd 2019-06-24 18:17:28 -07:00
Родитель a188339ca5 b467ec063e
Коммит b2f874d27b
4 изменённых файлов: 144 добавлений и 63 удалений

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@ -0,0 +1,141 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/allwinner,sun4i-a10-ccu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Allwinner Clock Control Unit Device Tree Bindings
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <maxime.ripard@bootlin.com>
properties:
"#clock-cells":
const: 1
"#reset-cells":
const: 1
compatible:
enum:
- allwinner,sun4i-a10-ccu
- allwinner,sun5i-a10s-ccu
- allwinner,sun5i-a13-ccu
- allwinner,sun6i-a31-ccu
- allwinner,sun7i-a20-ccu
- allwinner,sun8i-a23-ccu
- allwinner,sun8i-a33-ccu
- allwinner,sun8i-a83t-ccu
- allwinner,sun8i-a83t-r-ccu
- allwinner,sun8i-h3-ccu
- allwinner,sun8i-h3-r-ccu
- allwinner,sun8i-r40-ccu
- allwinner,sun8i-v3s-ccu
- allwinner,sun9i-a80-ccu
- allwinner,sun50i-a64-ccu
- allwinner,sun50i-a64-r-ccu
- allwinner,sun50i-h5-ccu
- allwinner,sun50i-h6-ccu
- allwinner,sun50i-h6-r-ccu
- allwinner,suniv-f1c100s-ccu
- nextthing,gr8-ccu
reg:
maxItems: 1
clocks:
minItems: 2
maxItems: 4
items:
- description: High Frequency Oscillator (usually at 24MHz)
- description: Low Frequency Oscillator (usually at 32kHz)
- description: Internal Oscillator
- description: Peripherals PLL
clock-names:
minItems: 2
maxItems: 4
items:
- const: hosc
- const: losc
- const: iosc
- const: pll-periph
required:
- "#clock-cells"
- "#reset-cells"
- compatible
- reg
- clocks
- clock-names
if:
properties:
compatible:
enum:
- allwinner,sun8i-a83t-r-ccu
- allwinner,sun8i-h3-r-ccu
- allwinner,sun50i-a64-r-ccu
- allwinner,sun50i-h6-r-ccu
then:
properties:
clocks:
minItems: 4
maxItems: 4
clock-names:
minItems: 4
maxItems: 4
else:
if:
properties:
compatible:
const: allwinner,sun50i-h6-ccu
then:
properties:
clocks:
minItems: 3
maxItems: 3
clock-names:
minItems: 3
maxItems: 3
else:
properties:
clocks:
minItems: 2
maxItems: 2
clock-names:
minItems: 2
maxItems: 2
additionalProperties: false
examples:
- |
ccu: clock@1c20000 {
compatible = "allwinner,sun8i-h3-ccu";
reg = <0x01c20000 0x400>;
clocks = <&osc24M>, <&osc32k>;
clock-names = "hosc", "losc";
#clock-cells = <1>;
#reset-cells = <1>;
};
- |
r_ccu: clock@1f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu 11>;
clock-names = "hosc", "losc", "iosc", "pll-periph";
#clock-cells = <1>;
#reset-cells = <1>;
};
...

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@ -1,62 +0,0 @@
Allwinner Clock Control Unit Binding
------------------------------------
Required properties :
- compatible: must contain one of the following compatibles:
- "allwinner,sun4i-a10-ccu"
- "allwinner,sun5i-a10s-ccu"
- "allwinner,sun5i-a13-ccu"
- "allwinner,sun6i-a31-ccu"
- "allwinner,sun7i-a20-ccu"
- "allwinner,sun8i-a23-ccu"
- "allwinner,sun8i-a33-ccu"
- "allwinner,sun8i-a83t-ccu"
- "allwinner,sun8i-a83t-r-ccu"
- "allwinner,sun8i-h3-ccu"
- "allwinner,sun8i-h3-r-ccu"
+ - "allwinner,sun8i-r40-ccu"
- "allwinner,sun8i-v3s-ccu"
- "allwinner,sun9i-a80-ccu"
- "allwinner,sun50i-a64-ccu"
- "allwinner,sun50i-a64-r-ccu"
- "allwinner,sun50i-h5-ccu"
- "allwinner,sun50i-h6-ccu"
- "allwinner,sun50i-h6-r-ccu"
- "allwinner,suniv-f1c100s-ccu"
- "nextthing,gr8-ccu"
- reg: Must contain the registers base address and length
- clocks: phandle to the oscillators feeding the CCU. Two are needed:
- "hosc": the high frequency oscillator (usually at 24MHz)
- "losc": the low frequency oscillator (usually at 32kHz)
On the A83T, this is the internal 16MHz oscillator divided by 512
- clock-names: Must contain the clock names described just above
- #clock-cells : must contain 1
- #reset-cells : must contain 1
For the main CCU on H6, one more clock is needed:
- "iosc": the SoC's internal frequency oscillator
For the PRCM CCUs on A83T/H3/A64/H6, two more clocks are needed:
- "pll-periph": the SoC's peripheral PLL from the main CCU
- "iosc": the SoC's internal frequency oscillator
Example for generic CCU:
ccu: clock@1c20000 {
compatible = "allwinner,sun8i-h3-ccu";
reg = <0x01c20000 0x400>;
clocks = <&osc24M>, <&osc32k>;
clock-names = "hosc", "losc";
#clock-cells = <1>;
#reset-cells = <1>;
};
Example for PRCM CCU:
r_ccu: clock@1f01400 {
compatible = "allwinner,sun50i-a64-r-ccu";
reg = <0x01f01400 0x100>;
clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu CLK_PLL_PERIPH0>;
clock-names = "hosc", "losc", "iosc", "pll-periph";
#clock-cells = <1>;
#reset-cells = <1>;
};

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@ -104,7 +104,7 @@ static SUNXI_CCU_GATE(r_apb2_i2c_clk, "r-apb2-i2c", "r-apb2",
static SUNXI_CCU_GATE(r_apb1_ir_clk, "r-apb1-ir", "r-apb1",
0x1cc, BIT(0), 0);
static SUNXI_CCU_GATE(r_apb1_w1_clk, "r-apb1-w1", "r-apb1",
0x1cc, BIT(0), 0);
0x1ec, BIT(0), 0);
/* Information of IR(RX) mod clock is gathered from BSP source code */
static const char * const r_mod0_default_parents[] = { "osc32k", "osc24M" };

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@ -989,6 +989,8 @@ static struct clk ** __init sunxi_divs_clk_setup(struct device_node *node,
if (endp) {
derived_name = kstrndup(clk_name, endp - clk_name,
GFP_KERNEL);
if (!derived_name)
return NULL;
factors.name = derived_name;
} else {
factors.name = clk_name;