Hi, Enric: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> 於 2021年7月14日 週三 下午6:12寫道： > > Reset dsi0 HW to default when power on. This prevents to have different > settingbetween the bootloader and the kernel. > > As not all Mediatek boards have the reset consumer configured in their > board description, also is not needed on all of them, the reset is optional, > so the change is compatible with all boards. Acked-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> > > Cc: Jitao Shi <jitao.shi@xxxxxxxxxxxx> > Suggested-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> > --- > > (no changes since v1) > > drivers/gpu/drm/mediatek/mtk_dsi.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c > index ae403c67cbd9..d8b81e2ab841 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > @@ -11,6 +11,7 @@ > #include <linux/of_platform.h> > #include <linux/phy/phy.h> > #include <linux/platform_device.h> > +#include <linux/reset.h> > > #include <video/mipi_display.h> > #include <video/videomode.h> > @@ -980,8 +981,10 @@ static int mtk_dsi_bind(struct device *dev, struct device *master, void *data) > struct mtk_dsi *dsi = dev_get_drvdata(dev); > > ret = mtk_dsi_encoder_init(drm, dsi); > + if (ret) > + return ret; > > - return ret; > + return device_reset_optional(dev); > } > > static void mtk_dsi_unbind(struct device *dev, struct device *master, > -- > 2.30.2 >
