2015-05-12 15:32 GMT+02:00 Thierry Reding [off-list ref]:

On Mon, May 11, 2015 at 05:26:22PM +0800, YH Huang wrote:

quoted

Add display PWM driver support to modify backlight for MT8173/MT6595.

Signed-off-by: YH Huang <redacted>
---
 drivers/pwm/Kconfig             |   9 ++
 drivers/pwm/Makefile            |   1 +
 drivers/pwm/pwm-disp-mediatek.c | 225 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 235 insertions(+)
 create mode 100644 drivers/pwm/pwm-disp-mediatek.c

diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index b1541f4..9edbb5a 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig

@@ -111,6 +111,15 @@ config PWM_CLPS711X
        To compile this driver as a module, choose M here: the module
        will be called pwm-clps711x.

+config PWM_DISP_MEDIATEK

Please make this "PWM_MEDIATEK_DISP" so we can keep everything sorted by
vendor.

quoted

+     tristate "MEDIATEK display PWM driver"

"MediaTek"?

quoted

+     depends on OF

Technically I think you need depends on HAS_IOMEM here to avoid breakage
on randconfig builds.

quoted

+     help
+       Generic PWM framework driver for mediatek disp-pwm device.

"MediaTek"? Also perhaps this should describe what this PWM is instead
of just the "disp-pwm" which leaves everyone guessing what it is. From
the name I'd expect it to be the PWM that is used to control the
backlight brightness for display, but I think this description should
say that explicitly.

quoted

+
+       To compile this driver as a module, choose M here: the module
+       will be called pwm-disp-mediatek.

pwm-mediatek-disp

I would prefert pwm-mtk-disp which is in line with the other drivers.
Also I have to admit that unfortunately the naming is not uniformly
throughout the kernel.

Thanks,
Matthias