Signed-off-by: Mark Zhang markz@nvidia.com --- drivers/gpu/drm/drm_mipi_dsi.c | 36 ++++++++++++++++++++++++++++++++++++ include/drm/drm_mipi_dsi.h | 2 ++ 2 files changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 2d5ca8eec13a..9bc6ff75eb8f 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -862,6 +862,42 @@ int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format) } EXPORT_SYMBOL(mipi_dsi_dcs_set_pixel_format);
+/** + * mipi_dsi_dcs_enter_idle_mode() + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_enter_idle_mode(struct mipi_dsi_device *dsi) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_ENTER_IDLE_MODE, NULL, 0); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_enter_idle_mode); + +/** + * mipi_dsi_dcs_exit_idle_mode() + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_exit_idle_mode(struct mipi_dsi_device *dsi) +{ + ssize_t err; + + err = mipi_dsi_dcs_write(dsi, MIPI_DCS_EXIT_IDLE_MODE, NULL, 0); + if (err < 0) + return err; + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_exit_idle_mode); + 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 f1d8d0dbb4f1..d949a8ef389f 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -214,6 +214,8 @@ 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); +int mipi_dsi_dcs_enter_idle_mode(struct mipi_dsi_device *dsi); +int mipi_dsi_dcs_exit_idle_mode(struct mipi_dsi_device *dsi);
/** * struct mipi_dsi_driver - DSI driver