drm/radeon/atom: fix dithering on certain panels (64252835) · Commits · 戴 / test

We need to specify the encoder mode as LVDS for eDP when using the Crtc_Source atom table in order to properly set up the FMT hardware. bug: https://bugs.freedesktop.org/show_bug.cgi?id=73911 Signed-off-by:

Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org

drivers/gpu/drm/radeon/atombios_encoders.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -1884,8 +1884,11 @@ atombios_set_encoder_crtc_source(struct drm_encoder *encoder)
		args.v2.ucEncodeMode = ATOM_ENCODER_MODE_CRT;
		else
		args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
		} else
		} else if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
		args.v2.ucEncodeMode = ATOM_ENCODER_MODE_LVDS;
		} else {
		args.v2.ucEncodeMode = atombios_get_encoder_mode(encoder);
		}
		switch (radeon_encoder->encoder_id) {
		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:

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