[PATCH v4 04/13] drm/dsi: Add a helper to get bits per pixel of MIPI DSI pixel format

Chris Zhong
2015-11-20T08:16:40Z

From: Liu Ying <Ying.liu@freescale.com>

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

include/drm/drm_mipi_dsi.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index f1d8d0d..3662021 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -163,6 +163,20 @@ static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
return container_of(dev, struct mipi_dsi_device, dev);
}

+static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
+{
+ switch (fmt) {
+ case MIPI_DSI_FMT_RGB888:
+ case MIPI_DSI_FMT_RGB666:
+ return 24;
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ return 18;
+ case MIPI_DSI_FMT_RGB565:
+ return 16;
+ }
+ return -EINVAL;
+}
+
struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
int mipi_dsi_attach(struct mipi_dsi_device *dsi);
int mipi_dsi_detach(struct mipi_dsi_device *dsi);
--
2.6.3