drm: expose subpixel order name routine v2

Commit Message

Jesse Barnes Jan. 21, 2014, 8:48 p.m. UTC

Just like we have for connector type etc.

v2: just return the string directly to avoid repeating the mistakes of
    the past (Chris)

Signed-off-by: Jesse Barnes <[e-mail]>
---
 drivers/gpu/drm/drm_crtc.c | 16 ++++++++++++++++
 include/drm/drm_crtc.h     |  1 +
 2 files changed, 17 insertions(+)

Patch

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 266a01d..65f2937 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -215,6 +215,16 @@  static const struct drm_prop_enum_list drm_encoder_enum_list[] =
 	{ DRM_MODE_ENCODER_DSI, "DSI" },
 };
 
+static const struct drm_prop_enum_list drm_subpixel_enum_list[] =
+{
+	{ SubPixelUnknown, "Unknown" },
+	{ SubPixelHorizontalRGB, "Horizontal RGB" },
+	{ SubPixelHorizontalBGR, "Horizontal BGR" },
+	{ SubPixelVerticalRGB, "Vertical RGB" },
+	{ SubPixelVerticalBGR, "Vertical BGR" },
+	{ SubPixelNone, "None" },
+};
+
 void drm_connector_ida_init(void)
 {
 	int i;
@@ -264,6 +274,12 @@  const char *drm_get_connector_status_name(enum drm_connector_status status)
 }
 EXPORT_SYMBOL(drm_get_connector_status_name);
 
+const char *drm_get_subpixel_order_name(enum subpixel_order order)
+{
+	return drm_subpixel_enum_list[order].name;
+}
+EXPORT_SYMBOL(drm_get_subpixel_order_name);
+
 static char printable_char(int c)
 {
 	return isascii(c) && isprint(c) ? c : '?';
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index f32c5cd..271373f 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -963,6 +963,7 @@  extern void drm_encoder_cleanup(struct drm_encoder *encoder);
 
 extern const char *drm_get_connector_name(const struct drm_connector *connector);
 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
+extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
 extern const char *drm_get_dpms_name(int val);
 extern const char *drm_get_dvi_i_subconnector_name(int val);
 extern const char *drm_get_dvi_i_select_name(int val);