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Fabien Parent 0c0ead7623 pwm: mediatek: Always use bus clock 
The MediaTek PWM IP can sometimes use the 26 MHz source clock to
generate the PWM signal, but the driver currently assumes that we always
use the PWM bus clock to generate the PWM signal.

This commit modifies the PWM driver in order to force the PWM IP to
always use the bus clock as source clock.

I do not have the datasheet of all the MediaTek SoC, so I don't know if
the register to choose the source clock is present in all the SoCs or
only in subset. As a consequence I made this change optional by using a
platform data paremeter to says whether this register is supported or
not. On all the SoCs I don't have the datasheet (MT2712, MT7622, MT7623,
MT7628, MT7629) I kept the behavior to be the same as before this
change.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2020-12-17 14:18:57 +01:00
..
core.c pwm: Convert to use DEFINE_SEQ_ATTRIBUTE macro 2020-09-24 09:18:09 +02:00
Kconfig pwm: Add PWM driver for Intel Keem Bay 2020-12-17 14:18:56 +01:00
Makefile pwm: Add PWM driver for Intel Keem Bay 2020-12-17 14:18:56 +01:00
pwm-ab8500.c pwm: ab8500: Explicitly allocate pwm chip base dynamically 2020-12-17 14:18:48 +01:00
pwm-atmel-hlcdc.c pwm: Ensure pwm_apply_state() doesn't modify the state argument 2019-09-21 03:25:10 +02:00
pwm-atmel-tcb.c pwm: atmel-tcb: Add sama5d2 support 2020-12-17 14:18:55 +01:00
pwm-atmel.c pwm: atmel: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:46 +01:00
pwm-bcm-iproc.c pwm: bcm-iproc: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:42 +01:00
pwm-bcm-kona.c pwm: bcm-kona: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:41 +01:00
pwm-bcm2835.c pwm: bcm2835: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-berlin.c pwm: berlin: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-brcmstb.c pwm: brcmstb: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-clps711x.c pwm: clps711x: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:45 +01:00
pwm-crc.c pwm: crc: Implement get_state() method 2020-09-06 15:38:05 +02:00
pwm-cros-ec.c pwm: cros-ec: Simplify EC error handling 2020-08-24 11:37:34 +02:00
pwm-ep93xx.c pwm: ep93xx: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:39 +01:00
pwm-fsl-ftm.c pwm: fsl-ftm: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:38 +01:00
pwm-hibvt.c pwm: hibvt: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:46 +01:00
pwm-img.c pwm: img: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:45 +01:00
pwm-imx-tpm.c pwm: imx-tpm: Use dev_err_probe() to simplify error handling 2020-12-17 14:18:47 +01:00
pwm-imx1.c pwm: imx1: Use dev_err_probe() to simplify error handling 2020-12-17 14:18:47 +01:00
pwm-imx27.c pwm: imx27: Use dev_err_probe() to simplify error handling 2020-12-17 14:18:47 +01:00
pwm-iqs620a.c pwm: iqs620a: Use lowercase hexadecimal literals for consistency 2020-06-17 20:42:59 +02:00
pwm-jz4740.c pwm: jz4740: Simplify with dev_err_probe() 2020-09-24 09:18:10 +02:00
pwm-keembay.c pwm: Add PWM driver for Intel Keem Bay 2020-12-17 14:18:56 +01:00
pwm-lp3943.c pwm: lp3943: Dynamically allocate PWM chip base 2020-12-17 14:18:55 +01:00
pwm-lpc18xx-sct.c pwm: lpc18xx-sct: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:46 +01:00
pwm-lpc32xx.c pwm: lpc32xx: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:42 +01:00
pwm-lpss-pci.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pwm-lpss-platform.c pwm: lpss: Set DPM_FLAG_SMART_SUSPEND on Cherry Trail devices 2020-12-17 14:18:49 +01:00
pwm-lpss.c pwm: lpss: Log error from pwm_lpss_is_updating() if the update bit is still set 2020-12-17 14:18:48 +01:00
pwm-lpss.h pwm: lpss: Remove suspend/resume handlers 2020-09-06 15:38:01 +02:00
pwm-mediatek.c pwm: mediatek: Always use bus clock 2020-12-17 14:18:57 +01:00
pwm-meson.c pwm: meson: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:42 +01:00
pwm-mtk-disp.c pwm: mtk-disp: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-mxs.c pwm: mxs: Remove unused include of of_address.h 2020-03-30 16:55:27 +02:00
pwm-omap-dmtimer.c pwm: Replace HTTP links with HTTPS ones 2020-07-30 11:27:13 +02:00
pwm-pca9685.c pwm: pca9685: Disable unused alternative addresses 2020-09-24 09:18:13 +02:00
pwm-pxa.c pwm: pxa: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:40 +01:00
pwm-rcar.c pwm: rcar: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:38 +01:00
pwm-renesas-tpu.c pwm: renesas-tpu: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:38 +01:00
pwm-rockchip.c pwm: rockchip: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:42 +01:00
pwm-samsung.c pwm: samsung: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:43 +01:00
pwm-sifive.c pwm: sifive: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:46 +01:00
pwm-sl28cpld.c pwm: Add support for sl28cpld PWM controller 2020-09-17 15:59:34 +01:00
pwm-spear.c pwm: spear: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:41 +01:00
pwm-sprd.c pwm: sprd: Simplify with dev_err_probe() 2020-09-24 09:18:11 +02:00
pwm-sti.c pwm: sti: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:40 +01:00
pwm-stm32-lp.c pwm: Convert period and duty cycle to u64 2020-06-17 20:42:11 +02:00
pwm-stm32.c pwm: stm32: Remove automatic output enable 2020-01-20 13:47:36 +01:00
pwm-stmpe.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pwm-sun4i.c pwm: sun4i: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:37 +01:00
pwm-tegra.c pwm: tegra: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:39 +01:00
pwm-tiecap.c pwm: tiecap: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-tiehrpwm.c pwm: tiehrpwm: Handle deferred probe with dev_err_probe() 2020-12-17 14:18:49 +01:00
pwm-twl-led.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
pwm-twl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
pwm-vt8500.c pwm: vt8500: Convert to devm_platform_ioremap_resource() 2020-12-17 14:18:44 +01:00
pwm-zx.c pwm: zx: Add missing cleanup in error path 2020-12-17 14:18:48 +01:00
sysfs.c pwm: Allow store 64-bit duty cycle from sysfs interface 2020-09-24 09:18:14 +02:00