From: Thierry Reding treding@nvidia.com
Provide small convenience wrappers to query or set the pixel format used by the interface.
Signed-off-by: Thierry Reding treding@nvidia.com --- drivers/gpu/drm/drm_mipi_dsi.c | 42 ++++++++++++++++++++++++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 2 ++ 2 files changed, 44 insertions(+)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 4e016a6a9fc3..d7ca57f1fdd3 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -574,6 +574,27 @@ int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode) EXPORT_SYMBOL(mipi_dsi_dcs_get_power_mode);
/** + * mipi_dsi_dcs_get_pixel_format() - gets the pixel format for the RGB image + * data used by the interface + * @dsi: DSI peripheral device + * @format: return location for the pixel format + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format) +{ + ssize_t err; + + err = mipi_dsi_dcs_read(dsi, MIPI_DCS_GET_PIXEL_FORMAT, format, + sizeof(*format)); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_get_pixel_format); + +/** * mipi_dsi_dcs_enter_sleep_mode() - disable all unnecessary blocks inside the * display module except interface communication * @dsi: DSI peripheral device @@ -691,6 +712,27 @@ int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi, } EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_on);
+/** + * mipi_dsi_dcs_set_pixel_format() - sets the pixel format for the RGB image + * data used by the interface + * @dsi: DSI peripheral device + * @format: pixel format + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_SET_PIXEL_FORMAT, &format, + sizeof(format)); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_set_pixel_format); + static int mipi_dsi_drv_probe(struct device *dev) { struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver); diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index b659b99ac890..968085b1ef73 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -179,6 +179,7 @@ ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data, int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode); +int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format); int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi); @@ -186,6 +187,7 @@ int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi); int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi, enum mipi_dsi_dcs_tear_mode mode); +int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
/** * struct mipi_dsi_driver - DSI driver