[PATCH] drm/amd/display: fix cond_no_effect.cocci warnings

From: cgel . zte
Date: Fri Nov 12 2021 - 01:17:07 EST


From: Ye Guojin <ye.guojin@xxxxxxxxxx>

This was found by coccicheck:
./drivers/gpu/drm/amd/display/dc/core/dc_resource.c, 2516, 7-9, WARNING
possible condition with no effect (if == else)

hdmi_info.bits.YQ0_YQ1 is always YYC_QUANTIZATION_LIMITED_RANGE.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Ye Guojin <ye.guojin@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index fabe1b83bd4f..564163a85d2c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2509,17 +2509,7 @@ static void set_avi_info_frame(

/* TODO : We should handle YCC quantization */
/* but we do not have matrix calculation */
- if (stream->qy_bit == 1) {
- if (color_space == COLOR_SPACE_SRGB ||
- color_space == COLOR_SPACE_2020_RGB_FULLRANGE)
- hdmi_info.bits.YQ0_YQ1 = YYC_QUANTIZATION_LIMITED_RANGE;
- else if (color_space == COLOR_SPACE_SRGB_LIMITED ||
- color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE)
- hdmi_info.bits.YQ0_YQ1 = YYC_QUANTIZATION_LIMITED_RANGE;
- else
- hdmi_info.bits.YQ0_YQ1 = YYC_QUANTIZATION_LIMITED_RANGE;
- } else
- hdmi_info.bits.YQ0_YQ1 = YYC_QUANTIZATION_LIMITED_RANGE;
+ hdmi_info.bits.YQ0_YQ1 = YYC_QUANTIZATION_LIMITED_RANGE;

///VIC
format = stream->timing.timing_3d_format;
--
2.25.1