From 51109530891c981b681816152bd205724deabcca Mon Sep 17 00:00:00 2001 From: Jitao Shi Date: Sat, 10 Oct 2020 15:09:09 +0800 Subject: [PATCH] Revert "drm/mediatek: dsi: Fix scrolling of panel with small hfp or hbp" This reverts commit 35bf948f1edbf507f6e57e0879fa6ea36d2d2930. Signed-off-by: Jitao Shi Reviewed-by: Bilal Wasim Tested-by: Bilal Wasim --- drivers/gpu/drm/mediatek/mtk_dsi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 80b7a082e874..16fd99dcdacf 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -466,13 +466,14 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi) horizontal_sync_active_byte = (vm->hsync_len * dsi_tmp_buf_bpp - 10); if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) - horizontal_backporch_byte = vm->hback_porch * dsi_tmp_buf_bpp; + horizontal_backporch_byte = + (vm->hback_porch * dsi_tmp_buf_bpp - 10); else - horizontal_backporch_byte = (vm->hback_porch + vm->hsync_len) * - dsi_tmp_buf_bpp; + horizontal_backporch_byte = ((vm->hback_porch + vm->hsync_len) * + dsi_tmp_buf_bpp - 10); data_phy_cycles = timing->lpx + timing->da_hs_prepare + - timing->da_hs_zero + timing->da_hs_exit; + timing->da_hs_zero + timing->da_hs_exit + 3; if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) { if ((vm->hfront_porch + vm->hback_porch) * dsi_tmp_buf_bpp > -- 2.25.1