drm/exynos: check a pixel format to a particular window layer
This patch checks if a requested window supports alpha channel or not. In case of s3c64xx, window 0 doesn't support alpha channel so if the request pixel format is ARGB8888 then change it to XRGB8888. Signed-off-by: Inki Dae <inki.dae@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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@ -66,11 +66,13 @@ struct fimd_driver_data {
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unsigned int has_shadowcon:1;
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unsigned int has_clksel:1;
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unsigned int has_limited_fmt:1;
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};
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static struct fimd_driver_data s3c64xx_fimd_driver_data = {
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.timing_base = 0x0,
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.has_clksel = 1,
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.has_limited_fmt = 1,
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};
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static struct fimd_driver_data exynos4_fimd_driver_data = {
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@ -420,6 +422,15 @@ static void fimd_win_set_pixfmt(struct device *dev, unsigned int win)
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val = WINCONx_ENWIN;
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/*
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* In case of s3c64xx, window 0 doesn't support alpha channel.
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* So the request format is ARGB8888 then change it to XRGB8888.
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*/
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if (ctx->driver_data->has_limited_fmt && !win) {
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if (win_data->pixel_format == DRM_FORMAT_ARGB8888)
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win_data->pixel_format = DRM_FORMAT_XRGB8888;
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}
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switch (win_data->pixel_format) {
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case DRM_FORMAT_C8:
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val |= WINCON0_BPPMODE_8BPP_PALETTE;
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