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drm: rockchip: rk628: post_process: Enable y2r when input mode clk is 594Mhz

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Because hdmirx phy only support yuv420 when input mode is 4K-60Hz,
y2r should be enabled.

Change-Id: I1eca2c6783c63e07cb13b617bb32ff81f2229c7d
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao
2020-11-04 16:48:59 +08:00
committed by Tao Huang
parent c0a543e874
commit 6d1fbe5b3d
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/rockchip/rk628/rk628_post_process.c
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@@ -275,6 +275,10 @@ static void rk628_post_process_bridge_mode_set(struct drm_bridge *bridge,
drm_mode_copy(&pp->dst_mode, &rk628->dst_mode);
else
drm_mode_copy(&pp->dst_mode, &pp->src_mode);
/* hdmirx 4k-60Hz mode only support yuv420 */
if (pp->src_mode.clock == 594000)
regmap_write(pp->grf, GRF_CSC_CTRL_CON, SW_Y2R_EN(1));
}
static int rk628_post_process_bridge_attach(struct drm_bridge *bridge)