在 2016年01月07日 18:03, Yakir Yang 写道:

diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c b/drivers/gpu/drm/rockchip/inno_hdmi.c
new file mode 100644
index 0000000..9327617
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/inno_hdmi.c

+static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi)
+{
+
+	if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_RGB)
+		avi_color_mode = AVI_COLOR_MODE_RGB;
+	else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
+		avi_color_mode = AVI_COLOR_MODE_YCBCR444;
+	else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
+		avi_color_mode = AVI_COLOR_MODE_YCBCR422;
+	else
+		avi_color_mode = AVI_COLOR_MODE_RGB;
+

         Fist if is no need, its result is same to "else".

+static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
+{

+	if (data->enc_out_format == data->enc_out_format) {
+		if ((data->enc_in_format == HDMI_COLORSPACE_RGB) ||
+		    (data->enc_in_format >= HDMI_COLORSPACE_YUV444)) {
+			value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1);
+			hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
+
+			hdmi_modb(hdmi, HDMI_VIDEO_CONTRL,
+				  m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP,
+				  v_VIDEO_AUTO_CSC(AUTO_CSC_DISABLE) |
+				  v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE));
+			return 0;
+		}
+	}

        It seems should be if (data->enc_in_format == data->enc_out_format).