diff options
Diffstat (limited to 'include/drm/drm_mipi_dbi.h')
| -rw-r--r-- | include/drm/drm_mipi_dbi.h | 78 |
1 files changed, 71 insertions, 7 deletions
diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h index c2827ceaba0d..f45f9612c0bc 100644 --- a/include/drm/drm_mipi_dbi.h +++ b/include/drm/drm_mipi_dbi.h @@ -12,10 +12,12 @@ #include <drm/drm_device.h> #include <drm/drm_simple_kms_helper.h> +struct drm_format_conv_state; struct drm_rect; -struct spi_device; struct gpio_desc; +struct iosys_map; struct regulator; +struct spi_device; /** * struct mipi_dbi - MIPI DBI interface @@ -55,6 +57,11 @@ struct mipi_dbi { struct spi_device *spi; /** + * @write_memory_bpw: Bits per word used on a MIPI_DCS_WRITE_MEMORY_START transfer + */ + unsigned int write_memory_bpw; + + /** * @dc: Optional D/C gpio. */ struct gpio_desc *dc; @@ -95,6 +102,11 @@ struct mipi_dbi_dev { struct drm_display_mode mode; /** + * @pixel_format: Native pixel format (DRM_FORMAT\_\*) + */ + u32 pixel_format; + + /** * @tx_buf: Buffer used for transfer (copy clip rect area) */ u16 *tx_buf; @@ -122,14 +134,27 @@ struct mipi_dbi_dev { struct backlight_device *backlight; /** - * @regulator: power regulator (optional) + * @regulator: power regulator (Vdd) (optional) */ struct regulator *regulator; /** + * @io_regulator: I/O power regulator (Vddi) (optional) + */ + struct regulator *io_regulator; + + /** * @dbi: MIPI DBI interface */ struct mipi_dbi dbi; + + /** + * @driver_private: Driver private data. + * Necessary for drivers with private data since devm_drm_dev_alloc() + * can't allocate structures that embed a structure which then again + * embeds drm_device. + */ + void *driver_private; }; static inline struct mipi_dbi_dev *drm_to_mipi_dbi_dev(struct drm_device *drm) @@ -147,12 +172,23 @@ int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev, 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); +enum drm_mode_status mipi_dbi_pipe_mode_valid(struct drm_simple_display_pipe *pipe, + const struct drm_display_mode *mode); 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_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); +int mipi_dbi_pipe_begin_fb_access(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); +void mipi_dbi_pipe_end_fb_access(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); +void mipi_dbi_pipe_reset_plane(struct drm_simple_display_pipe *pipe); +struct drm_plane_state *mipi_dbi_pipe_duplicate_plane_state(struct drm_simple_display_pipe *pipe); +void mipi_dbi_pipe_destroy_plane_state(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); + 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_dev *dbidev); @@ -166,13 +202,15 @@ int mipi_dbi_command_read(struct mipi_dbi *dbi, u8 cmd, u8 *val); int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len); int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data, size_t len); -int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb, - struct drm_rect *clip, bool swap); +int mipi_dbi_buf_copy(void *dst, struct iosys_map *src, struct drm_framebuffer *fb, + struct drm_rect *clip, bool swap, + struct drm_format_conv_state *fmtcnv_state); + /** * mipi_dbi_command - MIPI DCS command with optional parameter(s) * @dbi: MIPI DBI structure * @cmd: Command - * @seq...: Optional parameter(s) + * @seq: Optional parameter(s) * * Send MIPI DCS command to the controller. Use mipi_dbi_command_read() for * get/read. @@ -183,13 +221,39 @@ int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb, #define mipi_dbi_command(dbi, cmd, seq...) \ ({ \ const u8 d[] = { seq }; \ - mipi_dbi_command_stackbuf(dbi, cmd, d, ARRAY_SIZE(d)); \ + struct device *dev = &(dbi)->spi->dev; \ + int ret; \ + ret = mipi_dbi_command_stackbuf(dbi, cmd, d, ARRAY_SIZE(d)); \ + if (ret) \ + dev_err_ratelimited(dev, "error %d when sending command %#02x\n", ret, cmd); \ + ret; \ }) #ifdef CONFIG_DEBUG_FS void mipi_dbi_debugfs_init(struct drm_minor *minor); #else -#define mipi_dbi_debugfs_init NULL +static inline void mipi_dbi_debugfs_init(struct drm_minor *minor) {} #endif +/** + * DRM_MIPI_DBI_SIMPLE_DISPLAY_PIPE_FUNCS - Initializes struct drm_simple_display_pipe_funcs + * for MIPI-DBI devices + * @enable_: Enable-callback implementation + * + * This macro initializes struct drm_simple_display_pipe_funcs with default + * values for MIPI-DBI-based devices. The only callback that depends on the + * hardware is @enable, for which the driver has to provide an implementation. + * MIPI-based drivers are encouraged to use this macro for initialization. + */ +#define DRM_MIPI_DBI_SIMPLE_DISPLAY_PIPE_FUNCS(enable_) \ + .mode_valid = mipi_dbi_pipe_mode_valid, \ + .enable = (enable_), \ + .disable = mipi_dbi_pipe_disable, \ + .update = mipi_dbi_pipe_update, \ + .begin_fb_access = mipi_dbi_pipe_begin_fb_access, \ + .end_fb_access = mipi_dbi_pipe_end_fb_access, \ + .reset_plane = mipi_dbi_pipe_reset_plane, \ + .duplicate_plane_state = mipi_dbi_pipe_duplicate_plane_state, \ + .destroy_plane_state = mipi_dbi_pipe_destroy_plane_state + #endif /* __LINUX_MIPI_DBI_H */ |