diff options
| author | Pengyu Luo <mitltlatltl@gmail.com> | 2026-03-07 00:32:38 +0800 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> | 2026-03-06 20:41:08 +0200 |
| commit | e4eb11b34d6c84f398d8f08d7cb4d6c38e739dd2 (patch) | |
| tree | 8b4fce4e39938f491b74170e36405614b6a27281 /include/linux | |
| parent | 4355b13d46f696d687f42b982efed7570e03e532 (diff) | |
drm/msm/dsi: fix pclk rate calculation for bonded dsi
Recently, we round up new_hdisplay once at most, for bonded dsi, we
may need twice, since they are independent links, we should round up
each half separately. This also aligns with the hdisplay we program
later in dsi_timing_setup()
Example:
full_hdisplay = 1904, dsc_bpp = 8, bpc = 8
new_full_hdisplay = DIV_ROUND_UP(1904 * 8, 8 * 3) = 635
if we use half display
new_half_hdisplay = DIV_ROUND_UP(952 * 8, 8 * 3) = 318
new_full_display = 636
Fixes: 7c9e4a554d4a ("drm/msm/dsi: Reduce pclk rate for compression")
Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/709716/
Link: https://lore.kernel.org/r/20260306163255.215456-1-mitltlatltl@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions