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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: 8646d4dcc7fb ("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