On Mon, Feb 1, 2021 at 11:48 AM Jitao Shi jitao.shi@mediatek.com wrote:
Some panels or bridges require customized hs_da_trail time. So add a property in devicetree for this panels and bridges.
Since this changes the device tree, you also need to upload a binding document change.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com
drivers/gpu/drm/mediatek/mtk_dsi.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 8c70ec39bfe1..6e7092fa2fee 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -194,6 +194,7 @@ struct mtk_dsi { struct clk *hs_clk;
u32 data_rate;
u32 da_trail_delta; unsigned long mode_flags; enum mipi_dsi_pixel_format format;@@ -234,7 +235,7 @@ static void mtk_dsi_phy_timconfig(struct mtk_dsi *dsi) timing->da_hs_prepare = (80 * data_rate_mhz + 4 * 1000) / 8000; timing->da_hs_zero = (170 * data_rate_mhz + 10 * 1000) / 8000 + 1 - timing->da_hs_prepare;
timing->da_hs_trail = timing->da_hs_prepare + 1;
timing->da_hs_trail = timing->da_hs_prepare + 1 + dsi->da_trail_delta; timing->ta_go = 4 * timing->lpx - 2; timing->ta_sure = timing->lpx + 2;@@ -1094,6 +1095,13 @@ static int mtk_dsi_probe(struct platform_device *pdev) goto err_unregister_host; }
ret = of_property_read_u32_index(dev->of_node, "da_trail_delta", 0,&dsi->da_trail_delta);if (ret) {dev_info(dev, "Can't get da_trail_delta, keep it as 0: %d\n", ret);dsi->da_trail_delta = 0;}comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DSI); if (comp_id < 0) { dev_err(dev, "Failed to identify by alias: %d\n", comp_id);-- 2.12.5 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel