diff mbox series

[11/49] staging: hikey9xx/gpu: Add support 10.1 inch special HDMI displays.

Message ID 352fea9bd94aa12d603744f2b2f2de3fb297442f.1597833138.git.mchehab+huawei@kernel.org (mailing list archive)
State New, archived
Headers show
Series DRM driver for Hikey 970 | expand

Commit Message

Mauro Carvalho Chehab Aug. 19, 2020, 11:45 a.m. UTC 
From: Xiubin Zhang <zhangxiubin1@huawei.com>

Adjust pixel clock for compatibility with 10.1 inch special displays.

Signed-off-by: Xiubin Zhang <zhangxiubin1@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 drivers/staging/hikey9xx/gpu/kirin_drm_dss.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c b/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
index 11d847e2da3d..693f5499c8d0 100644
--- a/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
+++ b/drivers/staging/hikey9xx/gpu/kirin_drm_dss.c
@@ -270,6 +270,10 @@  static void dss_ldi_set_mode(struct dss_crtc *acrtc)
 		else
 			clk_Hz = mode->clock * 1000UL;
 
+		/* Adjust pixel clock for compatibility with 10.1 inch special displays. */
+		if (mode->clock == 148500 && mode->width_mm == 532 && mode->height_mm == 299)
+			clk_Hz = 152000 * 1000UL;
+
 		DRM_INFO("HDMI real need clock = %llu \n", clk_Hz);
 		hdmi_pxl_ppll7_init(ctx, clk_Hz);
 		adj_mode->clock = clk_Hz / 1000;