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authorDave Airlie <airlied@redhat.com>2014-01-29 12:03:56 +1000
committerDave Airlie <airlied@redhat.com>2014-01-29 12:03:56 +1000
commit45ab1e07808585c645bc82afd7487a91390f5511 (patch)
treef8585ff6fdd6dcae6a08f13017cc1fc1a1b11ea7 /include/drm
parentf4b4718b61d1d5a7442a4fd6863ea80c3a10e508 (diff)
parent13411ddd319057ae334a4084ebcf2c741b317f34 (diff)
downloadlinux-linaro-stable-45ab1e07808585c645bc82afd7487a91390f5511.tar.gz
Merge tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v3.14-rc1 (update) These patches fix some issues caused by the DRM panel support from the previous pull request and add two more panels (for the Toshiba AC100 as well as the Seaboard and Ventana). * tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: Obtain head number from DT drm/panel: update EDID BLOB in panel_simple_get_modes() gpu: host1x: Remove unnecessary include drm/tegra: Use proper data type drm/tegra: Clarify how panel modes override others drm/tegra: Fix possible CRTC mask for RGB outputs drm/i915: Use drm_encoder_crtc_ok() drm: Move drm_encoder_crtc_ok() to core drm: provide a helper for the encoder possible_crtcs mask drm/tegra: Don't check resource with devm_ioremap_resource() drm/panel: Add support for Chunghwa CLAA101WA01A panel drm/panel: Add support for Samsung LTN101NT05 panel
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_crtc.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index e963470efd39..71727b6210ae 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -931,6 +931,19 @@ extern int drm_crtc_init(struct drm_device *dev,
struct drm_crtc *crtc,
const struct drm_crtc_funcs *funcs);
extern void drm_crtc_cleanup(struct drm_crtc *crtc);
+extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
+
+/**
+ * drm_crtc_mask - find the mask of a registered CRTC
+ * @crtc: CRTC to find mask for
+ *
+ * Given a registered CRTC, return the mask bit of that CRTC for an
+ * encoder's possible_crtcs field.
+ */
+static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
+{
+ return 1 << drm_crtc_index(crtc);
+}
extern void drm_connector_ida_init(void);
extern void drm_connector_ida_destroy(void);
@@ -952,6 +965,19 @@ extern int drm_encoder_init(struct drm_device *dev,
const struct drm_encoder_funcs *funcs,
int encoder_type);
+/**
+ * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
+ * @encoder: encoder to test
+ * @crtc: crtc to test
+ *
+ * Return false if @encoder can't be driven by @crtc, true otherwise.
+ */
+static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
+ struct drm_crtc *crtc)
+{
+ return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
+}
+
extern int drm_plane_init(struct drm_device *dev,
struct drm_plane *plane,
unsigned long possible_crtcs,