diff options
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/tinydrm/mipi-dbi.h | 129 |
1 files changed, 91 insertions, 38 deletions
diff --git a/include/drm/tinydrm/mipi-dbi.h b/include/drm/tinydrm/mipi-dbi.h index b7b301130af7..67c66f5ee591 100644 --- a/include/drm/tinydrm/mipi-dbi.h +++ b/include/drm/tinydrm/mipi-dbi.h @@ -18,25 +18,63 @@ struct gpio_desc; struct regulator; /** - * struct mipi_dbi - MIPI DBI controller - * @spi: SPI device - * @enabled: Pipeline is enabled - * @cmdlock: Command lock - * @command: Bus specific callback executing commands. - * @read_commands: Array of read commands terminated by a zero entry. - * Reading is disabled if this is NULL. - * @dc: Optional D/C gpio. - * @tx_buf: Buffer used for transfer (copy clip rect area) - * @tx_buf9: Buffer used for Option 1 9-bit conversion - * @tx_buf9_len: Size of tx_buf9. - * @swap_bytes: Swap bytes in buffer before transfer - * @reset: Optional reset gpio - * @rotation: initial rotation in degrees Counter Clock Wise - * @backlight: backlight device (optional) - * @regulator: power regulator (optional) + * struct mipi_dbi - MIPI DBI interface */ struct mipi_dbi { /** + * @cmdlock: Command lock + */ + struct mutex cmdlock; + + /** + * @command: Bus specific callback executing commands. + */ + int (*command)(struct mipi_dbi *dbi, u8 *cmd, u8 *param, size_t num); + + /** + * @read_commands: Array of read commands terminated by a zero entry. + * Reading is disabled if this is NULL. + */ + const u8 *read_commands; + + /** + * @swap_bytes: Swap bytes in buffer before transfer + */ + bool swap_bytes; + + /** + * @reset: Optional reset gpio + */ + struct gpio_desc *reset; + + /* Type C specific */ + + /** + * @spi: SPI device + */ + struct spi_device *spi; + + /** + * @dc: Optional D/C gpio. + */ + struct gpio_desc *dc; + + /** + * @tx_buf9: Buffer used for Option 1 9-bit conversion + */ + void *tx_buf9; + + /** + * @tx_buf9_len: Size of tx_buf9. + */ + size_t tx_buf9_len; +}; + +/** + * struct mipi_dbi_dev - MIPI DBI device + */ +struct mipi_dbi_dev { + /** * @drm: DRM device */ struct drm_device drm; @@ -56,48 +94,63 @@ struct mipi_dbi { */ struct drm_display_mode mode; - struct spi_device *spi; + /** + * @enabled: Pipeline is enabled + */ bool enabled; - struct mutex cmdlock; - int (*command)(struct mipi_dbi *dbi, u8 *cmd, u8 *param, size_t num); - const u8 *read_commands; - struct gpio_desc *dc; + + /** + * @tx_buf: Buffer used for transfer (copy clip rect area) + */ u16 *tx_buf; - void *tx_buf9; - size_t tx_buf9_len; - bool swap_bytes; - struct gpio_desc *reset; + + /** + * @rotation: initial rotation in degrees Counter Clock Wise + */ unsigned int rotation; + + /** + * @backlight: backlight device (optional) + */ struct backlight_device *backlight; + + /** + * @regulator: power regulator (optional) + */ struct regulator *regulator; + + /** + * @dbi: MIPI DBI interface + */ + struct mipi_dbi dbi; }; -static inline struct mipi_dbi *drm_to_mipi_dbi(struct drm_device *drm) +static inline struct mipi_dbi_dev *drm_to_mipi_dbi_dev(struct drm_device *drm) { - return container_of(drm, struct mipi_dbi, drm); + return container_of(drm, struct mipi_dbi_dev, drm); } int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *dbi, struct gpio_desc *dc); -int mipi_dbi_init_with_formats(struct mipi_dbi *dbidev, - const struct drm_simple_display_pipe_funcs *funcs, - const uint32_t *formats, unsigned int format_count, - const struct drm_display_mode *mode, - unsigned int rotation, size_t tx_buf_size); -int mipi_dbi_init(struct mipi_dbi *dbidev, - const struct drm_simple_display_pipe_funcs *funcs, - const struct drm_display_mode *mode, unsigned int rotation); +int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev, + const struct drm_simple_display_pipe_funcs *funcs, + const uint32_t *formats, unsigned int format_count, + const struct drm_display_mode *mode, + unsigned int rotation, size_t tx_buf_size); +int mipi_dbi_dev_init(struct mipi_dbi_dev *dbidev, + const struct drm_simple_display_pipe_funcs *funcs, + const struct drm_display_mode *mode, unsigned int rotation); void mipi_dbi_release(struct drm_device *drm); void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe, struct drm_plane_state *old_state); -void mipi_dbi_enable_flush(struct mipi_dbi *dbidev, +void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev, struct drm_crtc_state *crtc_state, struct drm_plane_state *plan_state); void mipi_dbi_pipe_disable(struct drm_simple_display_pipe *pipe); void mipi_dbi_hw_reset(struct mipi_dbi *dbi); bool mipi_dbi_display_is_on(struct mipi_dbi *dbi); -int mipi_dbi_poweron_reset(struct mipi_dbi *dbidev); -int mipi_dbi_poweron_conditional_reset(struct mipi_dbi *dbidev); +int mipi_dbi_poweron_reset(struct mipi_dbi_dev *dbidev); +int mipi_dbi_poweron_conditional_reset(struct mipi_dbi_dev *dbidev); u32 mipi_dbi_spi_cmd_max_speed(struct spi_device *spi, size_t len); int mipi_dbi_spi_transfer(struct spi_device *spi, u32 speed_hz, |