AcoSail/kernel_optimize_test
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c92bd51313
kernel_optimize_test/drivers
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Liu Ying c92bd51313 phy: dphy: Correct lpx parameter and its derivatives(ta_{get,go,sure}) 
[ Upstream commit 3153fa38e38af566cf6454a03b1dbadaf6f323c0 ]

According to the comment of the function phy_mipi_dphy_get_default_config(),
it uses minimum D-PHY timings based on MIPI D-PHY specification.  They are
derived from the valid ranges specified in Section 6.9, Table 14, Page 41
of the D-PHY specification (v1.2).  The table 14 explicitly mentions that
the minimum T-LPX parameter is 50 nanoseconds and the minimum TA-SURE
parameter is T-LPX nanoseconds.  Likewise, the kernel doc of the 'lpx' and
'ta_sure' members of struct phy_configure_opts_mipi_dphy mentions that
the minimum values are 50000 picoseconds and @lpx picoseconds respectively.
Also, the function phy_mipi_dphy_config_validate() checks if cfg->lpx is
less than 50000 picoseconds and if cfg->ta_sure is less than cfg->lpx,
which hints the same minimum values.

Without this patch, the function phy_mipi_dphy_get_default_config()
wrongly sets cfg->lpx to 60000 picoseconds and cfg->ta_sure to 2 * cfg->lpx.
So, let's correct them to 50000 picoseconds and cfg->lpx respectively.

Note that I've only tested the patch with RM67191 DSI panel on i.MX8mq EVK.
Help is needed to test with other i.MX8mq, Meson and Rockchip platforms,
as I don't have the hardwares.

Fixes: dddc97e823 ("phy: dphy: Add configuration helpers")
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20220216071257.1647703-1-victor.liu@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:40:24 +02:00
..
accessibility speakup-dectlk: Restore pitch setting 2022-02-16 12:54:30 +01:00
acpi ACPI: APEI: fix return value of __setup handlers 2022-04-08 14:40:02 +02:00
amba amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
android binder: fix handling of error during copy 2022-01-27 10:54:06 +01:00
ata ata: pata_hpt37x: fix PCI clock detection 2022-03-08 19:09:31 +01:00
atm atm: eni: Add check for dma_map_single 2022-03-23 09:13:27 +01:00
auxdisplay auxdisplay: ht16k33: Fix frame buffer device blanking 2021-11-18 14:04:24 +01:00
base driver core: Free DMA range map when device is released 2022-03-02 11:42:56 +01:00
bcma
block drbd: fix potential silent data corruption 2022-04-08 14:39:54 +02:00
bluetooth Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt 2022-04-08 14:40:22 +02:00
bus mips: cdmm: Fix refcount leak in mips_cdmm_phys_base 2022-04-08 14:40:20 +02:00
cdrom
char hwrng: nomadik - Change clk_disable to clk_disable_unprepare 2022-04-08 14:40:02 +02:00
clk clk: qcom: ipq8074: Use floor ops for SDCC1 clock 2022-04-08 14:40:24 +02:00
clocksource clocksource: acpi_pm: fix return value of __setup handler 2022-04-08 14:40:03 +02:00
connector
counter counter: stm32-lptimer-cnt: remove iio counter abi 2022-01-27 10:54:08 +01:00
cpufreq cpufreq: qcom-cpufreq-nvmem: fix reading of PVS Valid fuse 2022-04-08 14:40:24 +02:00
cpuidle cpuidle: Fix kobject memory leaks in error paths 2021-11-18 14:04:05 +01:00
crypto crypto: ccree - Fix use after free in cc_cipher_exit() 2022-04-08 14:40:02 +02:00
dax dax: make sure inodes are flushed before destroy cache 2022-04-08 14:40:16 +02:00
dca
devfreq
dio
dma amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
dma-buf udmabuf: validate ubuf->pagecount 2022-04-08 14:40:12 +02:00
edac EDAC: Fix calculation of returned address and next offset in edac_align_ptr() 2022-02-23 12:01:07 +01:00
eisa
extcon
firewire
firmware firmware: qcom: scm: Remove reassignment to desc following initializer 2022-04-08 14:40:06 +02:00
fpga fpga: machxo2-spi: Fix missing error code in machxo2_write_complete() 2021-09-30 10:11:04 +02:00
fsi fsi: Aspeed: Fix a potential double free 2022-04-08 14:40:23 +02:00
gnss
gpio Revert "gpio: Revert regression in sysfs-gpio (gpiolib.c)" 2022-04-08 14:39:48 +02:00
gpu gpu: host1x: Fix a memory leak in 'host1x_remove()' 2022-04-08 14:40:18 +02:00
greybus greybus: svc: fix an error handling bug in gb_svc_hello() 2022-04-08 14:39:50 +02:00
hid HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports 2022-04-08 14:40:15 +02:00
hsi HSI: core: Fix return freed object in hsi_new_client 2022-01-27 10:54:12 +01:00
hv hv_balloon: rate-limit "Unhandled message" warning 2022-04-08 14:40:19 +02:00
hwmon hwmon: (pmbus) Add Vin unit off handling 2022-04-08 14:40:02 +02:00
hwspinlock
hwtracing amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
i2c i2c: mux: demux-pinctrl: do not deactivate a master that is not active 2022-04-08 14:40:22 +02:00
i3c
ide
idle
iio iio: mma8452: Fix probe failing when an i2c_device_id is used 2022-04-08 14:40:24 +02:00
infiniband RDMA/mlx5: Fix memory leak in error flow for subscribe event routine 2022-04-08 14:40:21 +02:00
input amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
interconnect treewide: Change list_sort to use const pointers 2021-09-30 10:11:04 +02:00
iommu iommu/ipmmu-vmsa: Check for error num after setting mask 2022-04-08 14:40:15 +02:00
ipack ipack: ipoctal: fix module reference leak 2021-10-06 15:56:01 +02:00
irqchip irqchip/sifive-plic: Add missing thead,c900-plic match string 2022-02-23 12:01:05 +01:00
isdn isdn: hfcpci: check the return value of dma_set_mask() in setup_hw() 2022-03-16 14:15:57 +01:00
leds
lightnvm
macintosh
mailbox mailbox: tegra-hsp: Flush whole channel 2022-04-08 14:39:55 +02:00
mcb
md dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS 2022-04-08 14:40:16 +02:00
media ivtv: fix incorrect device_caps for ivtvfb 2022-04-08 14:40:10 +02:00
memory memory: emif: check the pointer temp in get_device_details() 2022-04-08 14:40:09 +02:00
memstick memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() 2021-11-18 14:04:07 +01:00
message
mfd mfd: asic3: Add missing iounmap() on error asic3_mfd_probe 2022-04-08 14:40:23 +02:00
misc misc: alcor_pci: Fix an error handling path 2022-04-08 14:40:24 +02:00
mmc mmc: davinci_mmc: Handle error for clk_enable 2022-04-08 14:40:11 +02:00
most most: fix control-message timeouts 2021-11-18 14:03:51 +01:00
mtd mtd: rawnand: atmel: fix refcount issue in atmel_nand_controller_init 2022-04-08 14:40:21 +02:00
mux
net net: bcmgenet: Use stronger register read/writes to assure ordering 2022-04-08 14:40:23 +02:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-03-28 09:57:07 +02:00
ntb ntb: intel: fix port config status offset for SPR 2022-03-08 19:09:32 +01:00
nubus
nvdimm
nvme nvme: cleanup __nvme_check_ids 2022-04-08 14:40:00 +02:00
nvmem nvmem: core: set size for sysfs bin file 2022-01-27 10:54:22 +01:00
of of: base: Improve argument length mismatch error 2022-01-27 10:54:28 +01:00
opp opp: Fix return in _opp_add_static_v2() 2021-11-18 14:04:22 +01:00
oprofile
parisc parisc: Fix sglist access in ccio-dma.c 2022-02-23 12:00:57 +01:00
parport
pci PCI: Avoid broken MSI on SB600 USB devices 2022-04-08 14:40:23 +02:00
pcmcia pcmcia: fix setting of kthread task states 2022-01-27 10:54:03 +01:00
perf
phy phy: dphy: Correct lpx parameter and its derivatives(ta_{get,go,sure}) 2022-04-08 14:40:24 +02:00
pinctrl pinctrl: renesas: checker: Fix miscalculation of number of states 2022-04-08 14:40:24 +02:00
platform platform/x86: huawei-wmi: check the return value of device_create_file() 2022-04-08 14:40:20 +02:00
pnp
power power: supply: wm8350-power: Add missing free in free_charger_irq 2022-04-08 14:40:19 +02:00
powercap
pps
ps3
ptp ptp_pch: Load module automatically if ID matches 2021-10-13 10:04:27 +02:00
pwm pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add() 2022-04-08 14:40:23 +02:00
rapidio
ras
regulator regulator: qcom_smd: fix for_each_child.cocci warnings 2022-04-08 14:39:59 +02:00
remoteproc remoteproc: Fix count check in rproc_coredump_write() 2022-04-08 14:39:51 +02:00
reset reset: socfpga: add empty driver allowing consumers to probe 2021-11-18 14:03:42 +01:00
rpmsg rpmsg: char: Fix race between the release of rpmsg_eptdev and cdev 2022-02-01 17:25:43 +01:00
rtc amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
s390 scsi: zfcp: Fix failed recovery on gone remote port with non-NPIV FCP devices 2022-02-01 17:25:39 +01:00
sbus
scsi scsi: hisi_sas: Change permission of parameter prot_mask 2022-04-08 14:40:18 +02:00
sfi
sh maple: fix wrong return value of maple_bus_init(). 2021-11-26 10:39:12 +01:00
siox
slimbus
soc soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe 2022-04-08 14:40:07 +02:00
soundwire soundwire: intel: fix wrong register name in intel_shim_wake 2022-04-08 14:40:24 +02:00
spi amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
spmi
ssb
staging staging:iio:adc:ad7280a: Fix handing of device address bit reversing. 2022-04-08 14:40:24 +02:00
target scsi: target: iscsi: Make sure the np under each tpg is unique 2022-02-16 12:54:19 +01:00
tc
tee optee: use driver internal tee_context for some rpc 2022-03-02 11:42:47 +01:00
thermal thermal: int340x: Check for NULL after calling kmemdup() 2022-04-08 14:39:59 +02:00
thunderbolt thunderbolt: Runtime PM activate both ends of the device link 2022-01-27 10:54:14 +01:00
tty mxser: fix xmit_buf leak in activate when LSR == 0xff 2022-04-08 14:40:23 +02:00
uio
usb USB: storage: ums-realtek: fix error code in rts51x_read_mem() 2022-04-08 14:40:21 +02:00
vdpa vdpa/mlx5: should verify CTRL_VQ feature exists for MQ 2022-04-08 14:39:47 +02:00
vfio amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
vhost vsock: each transport cycles only on its own sockets 2022-03-23 09:13:27 +01:00
video video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of 2022-04-08 14:40:10 +02:00
virt
virtio virtio: acknowledge all features before access 2022-03-16 14:16:02 +01:00
visorbus
vlynq
vme
w1 w1: Misuse of get_user()/put_user() reported by sparse 2022-01-27 10:54:22 +01:00
watchdog amba: Make the remove callback return void 2022-04-08 14:40:02 +02:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-11 12:11:54 +01:00
zorro
Kconfig
Makefile