video: sunxi: fix regression with RGB only monitor

fixes #92, purple colors when using DVI monitor. Regression is noticed when monitor doesn't support YCbCr colorspace. This patch is workaround. To fix this properly, Colorspace must be set according EDID information Reviewed-by: Luc Verhaegen <libv@skynet.be>
linux-sunxi · Nov 1, 2012 · c085c41 · c085c41
1 parent 0294e5b
commit c085c41
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diff --git a/drivers/video/sunxi/disp/disp_de.c b/drivers/video/sunxi/disp/disp_de.c
@@ -223,7 +223,9 @@ __s32 BSP_disp_set_output_csc(__u32 sel, __disp_output_type_t type)
 		__s32 value = 0;
 
 		out_color_range = DISP_COLOR_RANGE_16_255;
+#ifdef YUV_COLORSPACE /* Fix me */
 		out_csc = DE_YUV_HDMI;
+#endif
 
 		ret =
 		    script_parser_fetch("disp_init", "screen0_out_color_range",

diff --git a/drivers/video/sunxi/hdmi/hdmi_core.c b/drivers/video/sunxi/hdmi/hdmi_core.c
@@ -322,12 +322,19 @@ __s32 video_config(__s32 vic)
 	HDMI_WUINT8(0x081, 0x02);
 	HDMI_WUINT8(0x082, 0x0d);
 	HDMI_WUINT8(0x083, 0x00);
+#ifdef YUV_COLORSPACE /* Fix me */
 	/* 4:4:4 YCbCr */
 	HDMI_WUINT8(0x084, 0x50); /* Data Byte 1 */
 	if (video_timing[vic_tab].PCLK < 74250000) /* 4:3 601 */
 		HDMI_WUINT8(0x085, 0x58); /* Data Byte 2 */
 	else /* 16:9 709 */
 		HDMI_WUINT8(0x085, 0xa8); /* Data Byte 2 */
+#else
+	/* RGB */
+	HDMI_WUINT8(0x084, 0x1E); /* Data Byte 1 */
+	/* 4:3 601 */
+	HDMI_WUINT8(0x085, 0x58); /* Data Byte 2 */
+#endif
 
 	HDMI_WUINT8(0x086, 0x00);
 	HDMI_WUINT8(0x087, video_timing[vic_tab].VIC);