Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

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Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
Add the DPI1 hdmi path support in mtk dpi driver

Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 630a4e301ef6..91212b7610e8 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -15,7 +15,10 @@
  #include <linux/of_graph.h>
  #include <linux/pinctrl/consumer.h>
  #include <linux/platform_device.h>
+#include <linux/reset.h>
  #include <linux/types.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
#include <video/videomode.h> @@ -66,10 +69,14 @@ struct mtk_dpi {
  	struct drm_bridge *next_bridge;
  	struct drm_connector *connector;
  	void __iomem *regs;
+	struct reset_control *reset_ctl;
  	struct device *dev;
  	struct clk *engine_clk;
+	struct clk *dpi_ck_cg;
  	struct clk *pixel_clk;
+	struct clk *dpi_sel_clk;
  	struct clk *tvd_clk;
+	struct clk *hdmi_cg;


You're adding new clocks and then you're making *all clocks*, including the
already existing ones... optional.

That looks seriously odd.... can you please give a devicetree example for
MT8195 in the next version, perhaps in the cover letter?

Would also make it easier to test this entire big series.

Regards,
Angelo




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