The value programmed into horizontal porch and sync registers must be scaled to the correct number of DSI lanes and bpp, make it so. Signed-off-by: Marek Vasut <marex@xxxxxxx> Cc: Fabio Estevam <festevam@xxxxxxxxx> Cc: Guido Günther <agx@xxxxxxxxxxx> Cc: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Cc: Michael Tretter <m.tretter@xxxxxxxxxxxxxx> Cc: NXP Linux Team <linux-imx@xxxxxxx> Cc: Shawn Guo <shawnguo@xxxxxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-samsung-soc@xxxxxxxxxxxxxxx To: dri-devel@xxxxxxxxxxxxxxxxxxxxx -- NOTE: This depends on https://patchwork.kernel.org/project/dri-devel/list/?series=347439 --- drivers/gpu/drm/bridge/samsung-dsim.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index fbd87a74eb9f..42b49546dd00 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -740,20 +740,23 @@ static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi) { struct drm_display_mode *m = &dsi->mode; unsigned int num_bits_resol = dsi->driver_data->num_bits_resol; + int bpp; u32 reg; if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) { + bpp = mipi_dsi_pixel_format_to_bpp(dsi->format) / 8; + reg = DSIM_CMD_ALLOW(0xf) | DSIM_STABLE_VFP(m->vsync_start - m->vdisplay) | DSIM_MAIN_VBP(m->vtotal - m->vsync_end); samsung_dsim_write(dsi, DSIM_MVPORCH_REG, reg); - reg = DSIM_MAIN_HFP(m->hsync_start - m->hdisplay) - | DSIM_MAIN_HBP(m->htotal - m->hsync_end); + reg = DSIM_MAIN_HFP((m->hsync_start - m->hdisplay) * bpp / dsi->lanes) + | DSIM_MAIN_HBP((m->htotal - m->hsync_end) * bpp / dsi->lanes); samsung_dsim_write(dsi, DSIM_MHPORCH_REG, reg); reg = DSIM_MAIN_VSA(m->vsync_end - m->vsync_start) - | DSIM_MAIN_HSA(m->hsync_end - m->hsync_start); + | DSIM_MAIN_HSA((m->hsync_end - m->hsync_start) * bpp / dsi->lanes); samsung_dsim_write(dsi, DSIM_MSYNC_REG, reg); } reg = DSIM_MAIN_HRESOL(m->hdisplay, num_bits_resol) | -- 2.28.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
