From: Tomi Valkeinen Date: Mon, 30 Sep 2019 10:38:37 +0000 (+0300) Subject: drm/omap: fix missing scaler pixel fmt limitations X-Git-Tag: v5.10.7~2352^2~6^2~1120 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f5b1fae153d9d9b719cc390eb3fb490996a09d2d;p=platform%2Fkernel%2Flinux-rpi.git drm/omap: fix missing scaler pixel fmt limitations OMAP2 and OMAP3/AM4 have limitations with the scaler: - OMAP2 can only scale XRGB8888 - OMAP3/AM4 can only scale XRGB8888, RGB565, YUYV and UYVY The driver doesn't check these limitations, which leads to sync-lost floods. This patch adds a check for the pixel formats when scaling. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20190930103840.18970-5-tomi.valkeinen@ti.com --- diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c index 29e58cf..413dbdd 100644 --- a/drivers/gpu/drm/omapdrm/dss/dispc.c +++ b/drivers/gpu/drm/omapdrm/dss/dispc.c @@ -114,6 +114,7 @@ struct dispc_features { const unsigned int num_reg_fields; const enum omap_overlay_caps *overlay_caps; const u32 **supported_color_modes; + const u32 *supported_scaler_color_modes; unsigned int num_mgrs; unsigned int num_ovls; unsigned int buffer_size_unit; @@ -2499,6 +2500,19 @@ static int dispc_ovl_calc_scaling(struct dispc_device *dispc, if (width == out_width && height == out_height) return 0; + if (dispc->feat->supported_scaler_color_modes) { + const u32 *modes = dispc->feat->supported_scaler_color_modes; + unsigned int i; + + for (i = 0; modes[i]; ++i) { + if (modes[i] == fourcc) + break; + } + + if (modes[i] == 0) + return -EINVAL; + } + if (plane == OMAP_DSS_WB) { switch (fourcc) { case DRM_FORMAT_NV12: @@ -4214,6 +4228,12 @@ static const u32 *omap4_dispc_supported_color_modes[] = { DRM_FORMAT_RGBX8888), }; +static const u32 omap3_dispc_supported_scaler_color_modes[] = { + DRM_FORMAT_XRGB8888, DRM_FORMAT_RGB565, DRM_FORMAT_YUYV, + DRM_FORMAT_UYVY, + 0, +}; + static const struct dispc_features omap24xx_dispc_feats = { .sw_start = 5, .fp_start = 15, @@ -4242,6 +4262,7 @@ static const struct dispc_features omap24xx_dispc_feats = { .num_reg_fields = ARRAY_SIZE(omap2_dispc_reg_fields), .overlay_caps = omap2_dispc_overlay_caps, .supported_color_modes = omap2_dispc_supported_color_modes, + .supported_scaler_color_modes = COLOR_ARRAY(DRM_FORMAT_XRGB8888), .num_mgrs = 2, .num_ovls = 3, .buffer_size_unit = 1, @@ -4276,6 +4297,7 @@ static const struct dispc_features omap34xx_rev1_0_dispc_feats = { .num_reg_fields = ARRAY_SIZE(omap3_dispc_reg_fields), .overlay_caps = omap3430_dispc_overlay_caps, .supported_color_modes = omap3_dispc_supported_color_modes, + .supported_scaler_color_modes = omap3_dispc_supported_scaler_color_modes, .num_mgrs = 2, .num_ovls = 3, .buffer_size_unit = 1, @@ -4310,6 +4332,7 @@ static const struct dispc_features omap34xx_rev3_0_dispc_feats = { .num_reg_fields = ARRAY_SIZE(omap3_dispc_reg_fields), .overlay_caps = omap3430_dispc_overlay_caps, .supported_color_modes = omap3_dispc_supported_color_modes, + .supported_scaler_color_modes = omap3_dispc_supported_scaler_color_modes, .num_mgrs = 2, .num_ovls = 3, .buffer_size_unit = 1, @@ -4344,6 +4367,7 @@ static const struct dispc_features omap36xx_dispc_feats = { .num_reg_fields = ARRAY_SIZE(omap3_dispc_reg_fields), .overlay_caps = omap3630_dispc_overlay_caps, .supported_color_modes = omap3_dispc_supported_color_modes, + .supported_scaler_color_modes = omap3_dispc_supported_scaler_color_modes, .num_mgrs = 2, .num_ovls = 3, .buffer_size_unit = 1, @@ -4378,6 +4402,7 @@ static const struct dispc_features am43xx_dispc_feats = { .num_reg_fields = ARRAY_SIZE(omap3_dispc_reg_fields), .overlay_caps = omap3430_dispc_overlay_caps, .supported_color_modes = omap3_dispc_supported_color_modes, + .supported_scaler_color_modes = omap3_dispc_supported_scaler_color_modes, .num_mgrs = 1, .num_ovls = 3, .buffer_size_unit = 1,