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drm/rockchip: dsi2: fix mode valid func when work in dual channel dsi

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Change-Id: Ib26202b9fdd908c9a3dd7d2f50f407a7c8f63c46
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-02-18 03:30:19 +00:00
committed by Tao Huang
parent 0d285d7f91
commit 7cfd42e08c
1 changed files with 12 additions and 10 deletions
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22
drivers/gpu/drm/rockchip/dw-mipi-dsi2-rockchip.c
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@@ -1000,7 +1000,9 @@ static enum drm_mode_status
dw_mipi_dsi2_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct dw_mipi_dsi2 *dsi2 = con_to_dsi2(connector);
struct videomode vm;
u8 min_pixels = dsi2->slave ? 8 : 4;
drm_display_mode_to_videomode(mode, &vm);
@@ -1008,21 +1010,21 @@ dw_mipi_dsi2_connector_mode_valid(struct drm_connector *connector,
* the minimum region size (HSA,HBP,HACT,HFP) is 4 pixels
* which is the ip known issues and limitations.
*/
if (!(vm.hsync_len < 4 || vm.hback_porch < 4 ||
vm.hfront_porch < 4 || vm.hactive < 4))
if (!(vm.hsync_len < min_pixels || vm.hback_porch < min_pixels ||
vm.hfront_porch < min_pixels || vm.hactive < min_pixels))
return MODE_OK;
if (vm.hsync_len < 4)
vm.hsync_len = 4;
if (vm.hsync_len < min_pixels)
vm.hsync_len = min_pixels;
if (vm.hback_porch < 4)
vm.hback_porch = 4;
if (vm.hback_porch < min_pixels)
vm.hback_porch = min_pixels;
if (vm.hfront_porch < 4)
vm.hfront_porch = 4;
if (vm.hfront_porch < min_pixels)
vm.hfront_porch = min_pixels;
if (vm.hactive < 4)
vm.hactive = 4;
if (vm.hactive < min_pixels)
vm.hactive = min_pixels;
drm_display_mode_from_videomode(&vm, mode);