DRM: use CONFIG_DRM_STARFIVE_MIPI_DSI change display channelVF_SDK_510_V1.1.2

Signed-off-by: changhuang.liang <changhuang.liang@starfivetech.com>

2 files changed, 25 insertions, 1 deletions

diff --git a/drivers/gpu/drm/starfive/Kconfig b/drivers/gpu/drm/starfive/Kconfig
index 3003874cee5b..930b25aa58ad 100755
--- a/drivers/gpu/drm/starfive/Kconfig
+++ b/drivers/gpu/drm/starfive/Kconfig
@@ -12,3 +12,11 @@ config DRM_STARFIVE
 	  The module will be called starfive-drm
 	  This driver provides kernel mode setting and
 	  buffer management to userspace.
+
+config DRM_STARFIVE_MIPI_DSI
+	bool "Starfive MIPI DSI Select"
+	help
+	  This selects support for starfive SoC specific extensions
+	  for the Synopsys DesignWare MIPI driver. If you want to
+	  enable MIPI DSI on VIC7100 based SoC, you should
+	  select this option.
\ No newline at end of file
diff --git a/drivers/gpu/drm/starfive/starfive_drm_encoder.c b/drivers/gpu/drm/starfive/starfive_drm_encoder.c
index 02aa859ecf0c..2fb197976035 100755
--- a/drivers/gpu/drm/starfive/starfive_drm_encoder.c
+++ b/drivers/gpu/drm/starfive/starfive_drm_encoder.c
@@ -52,6 +52,9 @@ static int starfive_encoder_of_parse_ports(struct device *dev,
 		num_port++;
 	}
 
+	//use CONFIG_DRM_STARFIVE_MIPI_DSI change only support one encoder
+	num_port = 1;
+
 	encoder_data = kzalloc(num_port * sizeof(*encoder_data), GFP_KERNEL);
 	*data = encoder_data;
 
@@ -61,7 +64,20 @@ static int starfive_encoder_of_parse_ports(struct device *dev,
 			continue;
 
 		of_property_read_u32(node, "encoder-type", &encoder_data->encoder_type);
-		of_property_read_u32(node, "reg", &encoder_data->endpoint_reg);
+		if (encoder_data->encoder_type == 2) {
+#ifndef CONFIG_DRM_STARFIVE_MIPI_DSI
+			of_property_read_u32(node, "reg", &encoder_data->endpoint_reg);
+#else
+			continue;
+#endif
+		} else {
+#ifdef CONFIG_DRM_STARFIVE_MIPI_DSI
+			of_property_read_u32(node, "reg", &encoder_data->endpoint_reg);
+#else
+			continue;
+#endif
+		}
+
 		encoder_data++;
 	}