Thread (1 message) 1 message, 1 author, 2017-06-23

Re: [PATCH 10/19] drm/sun4i: hdmi: Rename internal DDC clock to avoid name collision

From: Chen-Yu Tsai <hidden>
Date: 2017-06-23 09:37:13
Also in: dri-devel, linux-arm-kernel, linux-clk

On Mon, Jun 5, 2017 at 10:00 PM, Maxime Ripard
[off-list ref] wrote:
On Sat, Jun 03, 2017 at 10:33:25PM +0800, Chen-Yu Tsai wrote:
quoted
On Sat, Jun 3, 2017 at 3:30 AM, Maxime Ripard
[off-list ref] wrote:
quoted
On Fri, Jun 02, 2017 at 06:10:15PM +0800, Chen-Yu Tsai wrote:
quoted
The DDC parent clock on the A31 SoC is also conveniently named
"hdmi-ddc", which results in a name collision when the hdmi driver
registers its internal DDC divider clock.

Rename the internal clock to "hdmi-ddc-divider".

Signed-off-by: Chen-Yu Tsai <redacted>
---
 drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
index e1071838f487..9a6b6243e977 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
@@ -125,7 +125,7 @@ static int _sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk *parent,
      if (!ddc)
              return -ENOMEM;

-     init.name = "hdmi-ddc";
+     init.name = "hdmi-ddc-divider";
Can't we rename the CCU clock instead? Having the clock called
hdmi-ddc being the actual clock output on the DDC bus feels more
natural.
Do you have any suggestions? The manual labels the conflicting one
in the CCU as "HDMI_DDC"...
DDC as the main CCU clock, and hdmi-ddc as the one actually generated
by the HDMI controller?
I think I'll just name it hdmi-ddc-parent. Who knows if some other module
comes in and has a clock named ddc.

ChenYu
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