0006-Revert-drm-mediatek-dsi-Fix-scrolling-of-panel-with-.patch 1.6 KB

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  1. From 51109530891c981b681816152bd205724deabcca Mon Sep 17 00:00:00 2001
  2. From: Jitao Shi <jitao.shi@mediatek.com>
  3. Date: Sat, 10 Oct 2020 15:09:09 +0800
  4. Subject: [PATCH] Revert "drm/mediatek: dsi: Fix scrolling of panel with small
  5. hfp or hbp"
  6. This reverts commit 35bf948f1edbf507f6e57e0879fa6ea36d2d2930.
  7. Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
  8. Reviewed-by: Bilal Wasim <bilal.wasim@imgtec.com>
  9. Tested-by: Bilal Wasim <bilal.wasim@imgtec.com>
  10. ---
  11. drivers/gpu/drm/mediatek/mtk_dsi.c | 9 +++++----
  12. 1 file changed, 5 insertions(+), 4 deletions(-)
  13. diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
  14. index 80b7a082e874..16fd99dcdacf 100644
  15. --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
  16. +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
  17. @@ -466,13 +466,14 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)
  18. horizontal_sync_active_byte = (vm->hsync_len * dsi_tmp_buf_bpp - 10);
  19. if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
  20. - horizontal_backporch_byte = vm->hback_porch * dsi_tmp_buf_bpp;
  21. + horizontal_backporch_byte =
  22. + (vm->hback_porch * dsi_tmp_buf_bpp - 10);
  23. else
  24. - horizontal_backporch_byte = (vm->hback_porch + vm->hsync_len) *
  25. - dsi_tmp_buf_bpp;
  26. + horizontal_backporch_byte = ((vm->hback_porch + vm->hsync_len) *
  27. + dsi_tmp_buf_bpp - 10);
  28. data_phy_cycles = timing->lpx + timing->da_hs_prepare +
  29. - timing->da_hs_zero + timing->da_hs_exit;
  30. + timing->da_hs_zero + timing->da_hs_exit + 3;
  31. if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) {
  32. if ((vm->hfront_porch + vm->hback_porch) * dsi_tmp_buf_bpp >
  33. --
  34. 2.25.1