Manivannan Sadhasivam 1be49ae16f scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled ... commit 8eecddfca3 upstream. In ufs_qcom_dev_ref_clk_ctrl(), it was noted that the ref_clk needs to be stable for at least 1us. Even though there is wmb() to make sure the write gets "completed", there is no guarantee that the write actually reached the UFS device. There is a good chance that the write could be stored in a Write Buffer (WB). In that case, even though the CPU waits for 1us, the ref_clk might not be stable for that period. So lets do a readl() to make sure that the previous write has reached the UFS device before udelay(). Also, the wmb() after writel_relaxed() is not really needed. Both writel() and readl() are ordered on all architectures and the CPU won't speculate instructions after readl() due to the in-built control dependency with read value on weakly ordered architectures. So it can be safely removed. Link: https://lore.kernel.org/r/20220504084212.11605-4-manivannan.sadhasivam@linaro.org Fixes: f06fcc7155 ("scsi: ufs-qcom: add QUniPro hardware support and power optimizations") Cc: stable@vger.kernel.org Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:23:22 +02:00
..
accessibility	speakup-dectlk: Restore pitch setting	2022-02-16 12:56:37 +01:00
acpi	ACPI: property: Release subnode properties with data nodes	2022-06-09 10:23:20 +02:00
amba	…
android	…
ata	ata: pata_marvell: Check the 'bmdma_addr' beforing reading	2022-04-27 14:38:58 +02:00
atm	atm: eni: Add check for dma_map_single	2022-03-23 09:16:41 +01:00
auxdisplay	auxdisplay: lcd2s: Use proper API to free the instance of charlcd object	2022-03-08 19:12:47 +01:00
base	drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block()	2022-06-09 10:23:09 +02:00
bcma	…
block	virtio_blk: fix the discard_granularity and discard_alignment queue limits	2022-06-09 10:22:53 +02:00
bluetooth	Bluetooth: hci_qca: Use del_timer_sync() before freeing	2022-06-06 08:43:40 +02:00
bus	bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create()	2022-05-09 09:14:37 +02:00
cdrom	…
char	hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume()	2022-06-09 10:23:11 +02:00
clk	clk: at91: generated: consider range when calculating best rate	2022-05-25 09:57:32 +02:00
clocksource	clocksource: acpi_pm: fix return value of __setup handler	2022-04-08 14:23:09 +02:00
comedi	…
connector	…
counter	…
cpufreq	cpufreq: mediatek: Unregister platform device on exit	2022-06-09 10:23:14 +02:00
cpuidle	cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode	2022-06-09 10:22:33 +02:00
crypto	crypto: sun8i-ss - handle zero sized sg	2022-06-09 10:23:11 +02:00
cxl	cxl/regs: Fix size of CXL Capability Header Register	2022-04-08 14:23:30 +02:00
dax	dax: make sure inodes are flushed before destroy cache	2022-04-08 14:23:31 +02:00
dca	…
devfreq	PM / devfreq: rk3399_dmc: Disable edev on remove()	2022-06-09 10:22:41 +02:00
dio	…
dma	dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler()	2022-06-09 10:23:15 +02:00
dma-buf	dma-buf: ensure unique directory name for dmabuf stats	2022-05-25 09:57:29 +02:00
edac	EDAC/dmc520: Don't print an error for each unconfigured interrupt line	2022-06-09 10:22:47 +02:00
eisa	…
extcon	…
firewire	firewire: core: extend card->lock in fw_core_handle_bus_reset	2022-05-12 12:30:05 +02:00
firmware	firmware: arm_ffa: Remove incorrect assignment of driver_data	2022-06-09 10:23:09 +02:00
fpga	…
fsi	fsi: Aspeed: Fix a potential double free	2022-04-08 14:23:44 +02:00
gnss	…
gpio	pinctrl/rockchip: support deferring other gpio params	2022-06-09 10:23:07 +02:00
gpu	drm/amdgpu: add beige goby PCI ID	2022-06-09 10:23:21 +02:00
greybus	greybus: svc: fix an error handling bug in gb_svc_hello()	2022-04-08 14:22:50 +02:00
hid	HID: amd_sfh: Modify the hid name	2022-06-09 10:22:56 +02:00
hsi	HSI: core: Fix return freed object in hsi_new_client	2022-01-27 11:04:31 +01:00
hv	Drivers: hv: vmbus: Fix handling of messages with transaction ID of zero	2022-06-09 10:23:07 +02:00
hwmon	hwmon: (pmbus) Check PEC support before reading other registers	2022-06-09 10:23:02 +02:00
hwspinlock	…
hwtracing	coresight: syscfg: Fix memleak on registration failure in cscfg_create_device	2022-04-08 14:22:50 +02:00
i2c	i2c: rcar: fix PM ref counts in probe error paths	2022-06-09 10:23:16 +02:00
i3c	i3c: master: dw: check return of dw_i3c_master_get_free_pos()	2022-03-08 19:12:37 +01:00
idle	…
iio	iio:imu:bmi160: disable regulator in error path	2022-05-09 09:14:31 +02:00
infiniband	RDMA/hfi1: Prevent use of lock before it is initialized	2022-06-09 10:23:13 +02:00
input	Input: stmfts - do not leave device disabled in stmfts_input_open	2022-06-09 10:23:13 +02:00
interconnect	interconnect: Restore sync state by ignoring ipa-virt in provider count	2022-05-18 10:26:53 +02:00
iommu	iommu/amd: Increase timeout waiting for GA log enablement	2022-06-09 10:23:16 +02:00
ipack	…
irqchip	irqchip/aspeed-scu-ic: Fix irq_of_parse_and_map() return value	2022-06-09 10:22:54 +02:00
isdn	isdn: hfcpci: check the return value of dma_set_mask() in setup_hw()	2022-03-16 14:23:36 +01:00
leds	…
macintosh	macintosh: via-pmu and via-cuda need RTC_LIB	2022-06-09 10:23:12 +02:00
mailbox	mailbox: forward the hrtimer if not queued and under a lock	2022-06-09 10:23:12 +02:00
mcb	…
md	md/bitmap: don't set sb values if can't pass sanity check	2022-06-09 10:22:33 +02:00
media	media: i2c: ov5648: fix wrong pointer passed to IS_ERR() and PTR_ERR()	2022-06-09 10:22:59 +02:00
memory	memory: samsung: exynos5422-dmc: Avoid some over memory allocation	2022-06-09 10:23:04 +02:00
memstick	…
message	…
mfd	mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe()	2022-06-09 10:23:12 +02:00
misc	misc: ocxl: fix possible double free in ocxl_file_register_afu	2022-06-09 10:23:06 +02:00
mmc	drivers: mmc: sdhci_am654: Add the quirk to set TESTCD bit	2022-06-09 10:22:34 +02:00
most	…
mtd	mtd: rawnand: intel: fix possible null-ptr-deref in ebu_nand_probe()	2022-06-09 10:22:51 +02:00
mux	…
net	iwlwifi: mvm: fix assert 1F04 upon reconfig	2022-06-09 10:23:18 +02:00
nfc	NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx	2022-06-09 10:23:01 +02:00
ntb	ntb: intel: fix port config status offset for SPR	2022-03-08 19:12:44 +01:00
nubus	…
nvdimm	nvdimm: Allow overwrite in the presence of disabled dimms	2022-06-09 10:23:08 +02:00
nvme	nvme: set dma alignment to dword	2022-06-09 10:22:58 +02:00
nvmem	nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property	2022-03-02 11:48:06 +01:00
of	of: overlay: do not break notify on NOTIFY_{OK|STOP}	2022-06-09 10:22:50 +02:00
opp	OPP: call of_node_put() on error path in _bandwidth_supported()	2022-06-09 10:23:13 +02:00
parisc	parisc: Fix CPU affinity for Lasi, WAX and Dino chips	2022-04-13 20:59:14 +02:00
parport	…
pci	PCI: qcom: Fix unbalanced PHY init on probe errors	2022-06-09 10:23:21 +02:00
pcmcia	…
perf	arm_pmu: Validate single/group leader events	2022-04-27 14:39:00 +02:00
phy	phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe()	2022-05-09 09:14:34 +02:00
pinctrl	pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()	2022-06-09 10:23:09 +02:00
platform	MIPS: Loongson: Use hwmon_device_register_with_groups() to register hwmon	2022-06-09 10:23:14 +02:00
pnp	…
power	power: supply: axp288-charger: Set Vhold to 4.4V	2022-04-13 20:59:05 +02:00
powercap	…
pps	pps: clients: gpio: Propagate return value from pps_gpio_probe	2022-04-08 14:23:44 +02:00
ps3	…
ptp	ptp: replace snprintf with sysfs_emit	2022-04-13 20:59:01 +02:00
pwm	pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add()	2022-04-08 14:23:44 +02:00
rapidio	…
ras	…
regulator	regulator: scmi: Fix refcount leak in scmi_regulator_probe	2022-06-09 10:23:00 +02:00
remoteproc	remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region	2022-04-08 14:23:47 +02:00
reset	reset: tegra-bpmp: Restore Handle errors in BPMP response	2022-04-27 14:38:55 +02:00
rpmsg	rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev	2022-02-01 17:27:07 +01:00
rtc	rtc: mc146818-lib: Fix the AltCentury for AMD platforms	2022-05-25 09:57:26 +02:00
s390	s390/stp: clock_delta should be signed	2022-06-09 10:23:21 +02:00
sbus	…
scsi	scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled	2022-06-09 10:23:22 +02:00
sh	…
siox	…
slimbus	slimbus: qcom: Fix IRQ check in qcom_slim_probe	2022-05-18 10:26:55 +02:00
soc	soc: bcm: Check for NULL return of devm_kzalloc()	2022-06-09 10:23:08 +02:00
soundwire	ASoC: Intel: sof_sdw: fix quirks for 2022 HP Spectre x360 13"	2022-04-08 14:24:02 +02:00
spi	spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname()	2022-06-09 10:22:55 +02:00
spmi	…
ssb	…
staging	staging: r8188eu: prevent ->Ssid overflow in rtw_wx_set_scan()	2022-06-09 10:23:21 +02:00
target	target: remove an incorrect unmap zeroes data deduction	2022-06-09 10:22:47 +02:00
tc	…
tee	optee: use driver internal tee_context for some rpc	2022-03-02 11:47:51 +01:00
thermal	thermal/drivers/imx_sc_thermal: Fix refcount leak in imx_sc_thermal_probe	2022-06-09 10:23:01 +02:00
thunderbolt	thunderbolt: Runtime PM activate both ends of the device link	2022-01-27 11:04:36 +01:00
tty	tty: goldfish: Introduce gf_ioread32()/gf_iowrite32()	2022-06-09 10:23:20 +02:00
uio	…
usb	xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI	2022-06-09 10:22:29 +02:00
vdpa	vdpa: mlx5: prevent cvq work from hogging CPU	2022-04-13 20:59:15 +02:00
vfio	vfio/pci: Fix vf_token mechanism when device-specific VF drivers are used	2022-04-20 09:34:13 +02:00
vhost	Fix double fget() in vhost_net_set_backend()	2022-05-25 09:57:27 +02:00
video	video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup	2022-06-09 10:23:16 +02:00
virt	virt: acrn: fix a memory leak in acrn_dev_ioctl()	2022-04-08 14:23:50 +02:00
virtio	virtio: acknowledge all features before access	2022-03-16 14:23:43 +01:00
visorbus	…
vlynq	…
vme	…
w1	w1: w1_therm: fixes w1_seq for ds28ea00 sensors	2022-04-13 20:59:11 +02:00
watchdog	Watchdog: sp5100_tco: Enable Family 17h+ CPUs	2022-05-25 09:57:23 +02:00
xen	swiotlb: Support aligned swiotlb buffers	2022-04-08 14:24:17 +02:00
zorro	…
Kconfig	…
Makefile	…