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Commit 9da12b6a authored by Rob Clark's avatar Rob Clark Committed by Dave Airlie
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drm: psuedocolor support for ARGB modes 



If there is an alpha channel, need to mask in 1's in the alpha channel
to prevent the fb from being completely transparent.

Signed-off-by: default avatarRob Clark <rob@ti.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent a250b9fd

drivers/gpu/drm/drm_fb_helper.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -627,6 +627,11 @@ static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green, 
		value = (red << info->var.red.offset) |

		value = (red << info->var.red.offset) |

			(green << info->var.green.offset) |

			(green << info->var.green.offset) |

			(blue << info->var.blue.offset);

			(blue << info->var.blue.offset);

		if (info->var.transp.length > 0) {

			u32 mask = (1 << info->var.transp.length) - 1;

			mask <<= info->var.transp.offset;

			value |= mask;

		}

		palette[regno] = value;

		palette[regno] = value;

		return 0;

		return 0;

	}

	}