AuxXxilium/linux_dsm_epyc7002
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dee1bc9c23
linux_dsm_epyc7002/drivers/clk
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Peng Fan dee1bc9c23 clk: imx: pll14xx: avoid glitch when set rate 
According to PLL1443XA and PLL1416X spec,
"When BYPASS is 0 and RESETB is changed from 0 to 1, FOUT starts to
output unstable clock until lock time passes. PLL1416X/PLL1443XA may
generate a glitch at FOUT."

So set BYPASS when RESETB is changed from 0 to 1 to avoid glitch.
In the end of set rate, BYPASS will be cleared.

When prepare clock, also need to take care to avoid glitch. So
we also follow Spec to set BYPASS before RESETB changed from 0 to 1.
And add a check if the RESETB is already 0, directly return 0;

Fixes: 8646d4dcc7 ("clk: imx: Add PLLs driver for imx8mm soc")
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lkml.kernel.org/r/1568043491-20680-2-git-send-email-peng.fan@nxp.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 22:53:34 -07:00
..
actions treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
analogbits treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
at91 This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
axis treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
axs10x treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
bcm This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
berlin treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
davinci clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
h8300 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hisilicon treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
imgtec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
imx clk: imx: pll14xx: avoid glitch when set rate 2019-09-17 22:53:34 -07:00
ingenic This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
keystone This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
loongson1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mediatek This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
meson This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
microchip treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 2019-06-05 17:37:18 +02:00
mmp clk: mmp: frac: Remove set but not used variable 'prev_rate' 2019-06-07 11:54:48 -07:00
mvebu This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
mxs treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
nxp treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159 2019-05-30 11:26:37 -07:00
pistachio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
pxa treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
qcom This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
renesas This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
rockchip This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
samsung This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
sifive A few clk driver fixes 2019-05-30 16:33:37 -07:00
sirf treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
socfpga This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
spear clk: spear: fix WDT clock definition on SPEAr600 2018-04-06 13:45:34 -07:00
sprd This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
st treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sunxi This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
sunxi-ng This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
tegra This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
ti This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
uniphier treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ux500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
versatile treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
x86 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
zte treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
zynq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 401 2019-06-05 17:37:13 +02:00
zynqmp ARM: SoC-related driver updates 2019-05-16 09:19:14 -07:00
clk-asm9260.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-aspeed.c clk: Aspeed: Setup video engine clocking 2019-04-18 14:56:19 -07:00
clk-axi-clkgen.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177 2019-05-30 11:29:19 -07:00
clk-axm5516.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-bd718x7.c clk: bd718x7: Support ROHM BD70528 clk block 2019-06-27 10:57:24 +01:00
clk-bulk.c clk: Add clk_bulk_get_optional() function 2019-06-25 14:28:01 -07:00
clk-cdce706.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk-cdce925.c Merge branches 'clk-dt-name', 'clk-ti-of-node' and 'clk-sa' into clk-next 2018-10-18 15:33:52 -07:00
clk-clps711x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-composite.c clk: Remove CLK_IS_BASIC clk flag 2019-04-26 10:40:49 -07:00
clk-conf.c clk: Tag clk core files with SPDX 2018-12-11 09:57:47 -08:00
clk-cs2000-cp.c clk: cs2000-cp: convert to SPDX identifiers 2018-08-02 13:55:00 -07:00
clk-devres.c clk: Add devm_clk_bulk_get_optional() function 2019-06-25 14:28:01 -07:00
clk-divider.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-efm32gg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-fixed-factor.c Merge branch 'clk-parent-rewrite-1' into clk-next 2019-05-07 11:46:13 -07:00
clk-fixed-mmio.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-fixed-rate.c clk: Remove CLK_IS_BASIC clk flag 2019-04-26 10:40:49 -07:00
clk-fractional-divider.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-gate.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-gemini.c treewide: Use struct_size() for kmalloc()-family 2018-06-06 11:15:43 -07:00
clk-gpio.c clk: Remove CLK_IS_BASIC clk flag 2019-04-26 10:40:49 -07:00
clk-hi655x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
clk-highbank.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-hsdk-pll.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-lochnagar.c clk: lochnagar: Use new parent_data approach to register clock parents 2019-06-25 16:29:03 -07:00
clk-max9485.c clk: Add driver for MAX9485 2018-07-06 13:44:06 -07:00
clk-max77686.c clk: clk-max77686: Clean clkdev lookup leak and use devm 2019-02-06 10:35:03 -08:00
clk-milbeaut.c clock: milbeaut: Add Milbeaut M10V clock controller 2019-04-25 16:43:37 -07:00
clk-moxart.c clk: Convert to using %pOF instead of full_name 2017-07-21 15:49:54 -07:00
clk-multiplier.c clk: Remove io.h from clk-provider.h 2019-05-15 13:21:37 -07:00
clk-mux.c Merge branch 'clk-ti' into clk-next 2019-05-07 11:46:02 -07:00
clk-nomadik.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
clk-npcm7xx.c This time it looks like a quieter release cycle in the clk tree. I guess that's 2018-10-31 11:08:30 -07:00
clk-nspire.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clk-oxnas.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-palmas.c clk: palmas: constify clk_ops structure 2018-11-06 09:41:44 -08:00
clk-pwm.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk-qoriq.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk-rk808.c - Core Frameworks 2019-07-15 20:18:40 -07:00
clk-s2mps11.c clk: s2mps11: constify clk_ops structure 2018-11-06 09:42:12 -08:00
clk-scmi.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-scpi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-si514.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-si544.c clk: clk-si544: Implement small frequency change support 2019-06-27 13:45:38 -07:00
clk-si570.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-si5341.c clk: Add Si5341/Si5340 driver 2019-06-27 14:06:47 -07:00
clk-si5351.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-si5351.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-stm32f4.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
clk-stm32h7.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-stm32mp1.c clk: stm32mp1: Add ddrperfm clock 2019-04-29 11:13:23 -07:00
clk-tango4.c clk: Convert to using %pOFn instead of device_node.name 2018-08-30 09:50:20 -07:00
clk-twl6040.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
clk-u300.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
clk-versaclock5.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
clk-vt8500.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
clk-wm831x.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
clk-xgene.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
clk.c This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
clk.h clk: consoldiate the __clk_get_hw() declarations 2019-07-12 11:00:14 -07:00
clkdev.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Kconfig This round of clk driver and framework updates is heavy on the driver update 2019-07-17 10:07:48 -07:00
Makefile clk: Add Si5341/Si5340 driver 2019-06-27 14:06:47 -07:00