diff options
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 38 | ||||
| -rw-r--r-- | include/drm/drm_mipi_dsi.h | 2 |
2 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 2d5ca8eec13a..6e6a9c58d404 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -365,6 +365,44 @@ int mipi_dsi_create_packet(struct mipi_dsi_packet *packet, } EXPORT_SYMBOL(mipi_dsi_create_packet); +/** + * mipi_dsi_shutdown_peripheral() - sends a Shutdown Peripheral command + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi) +{ + struct mipi_dsi_msg msg = { + .channel = dsi->channel, + .type = MIPI_DSI_SHUTDOWN_PERIPHERAL, + .tx_buf = (u8 [2]) { 0, 0 }, + .tx_len = 2, + }; + + return mipi_dsi_device_transfer(dsi, &msg); +} +EXPORT_SYMBOL(mipi_dsi_shutdown_peripheral); + +/** + * mipi_dsi_turn_on_peripheral() - sends a Turn On Peripheral command + * @dsi: DSI peripheral device + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi) +{ + struct mipi_dsi_msg msg = { + .channel = dsi->channel, + .type = MIPI_DSI_TURN_ON_PERIPHERAL, + .tx_buf = (u8 [2]) { 0, 0 }, + .tx_len = 2, + }; + + return mipi_dsi_device_transfer(dsi, &msg); +} +EXPORT_SYMBOL(mipi_dsi_turn_on_peripheral); + /* * mipi_dsi_set_maximum_return_packet_size() - specify the maximum size of the * the payload in a long packet transmitted from the peripheral back to the diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h index 4396c9f22af5..1b3b1f8c8cdf 100644 --- a/include/drm/drm_mipi_dsi.h +++ b/include/drm/drm_mipi_dsi.h @@ -191,6 +191,8 @@ static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt) 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); +int mipi_dsi_shutdown_peripheral(struct mipi_dsi_device *dsi); +int mipi_dsi_turn_on_peripheral(struct mipi_dsi_device *dsi); int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi, u16 value); |
