diff options
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mipi_dsi.c | 324 |
1 files changed, 323 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c index 795001bb7ff1..969cfd5a01ae 100644 --- a/drivers/gpu/drm/drm_mipi_dsi.c +++ b/drivers/gpu/drm/drm_mipi_dsi.c @@ -48,7 +48,7 @@ * subset of the MIPI DCS command set. */ -static int mipi_dsi_device_match(struct device *dev, struct device_driver *drv) +static int mipi_dsi_device_match(struct device *dev, const struct device_driver *drv) { struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev); @@ -765,6 +765,62 @@ ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload, EXPORT_SYMBOL(mipi_dsi_generic_write); /** + * mipi_dsi_generic_write_chatty() - mipi_dsi_generic_write() w/ an error log + * @dsi: DSI peripheral device + * @payload: buffer containing the payload + * @size: size of payload buffer + * + * Like mipi_dsi_generic_write() but includes a dev_err() + * call for you and returns 0 upon success, not the number of bytes sent. + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_generic_write_chatty(struct mipi_dsi_device *dsi, + const void *payload, size_t size) +{ + struct device *dev = &dsi->dev; + ssize_t ret; + + ret = mipi_dsi_generic_write(dsi, payload, size); + if (ret < 0) { + dev_err(dev, "sending generic data %*ph failed: %zd\n", + (int)size, payload, ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_generic_write_chatty); + +/** + * mipi_dsi_generic_write_multi() - mipi_dsi_generic_write_chatty() w/ accum_err + * @ctx: Context for multiple DSI transactions + * @payload: buffer containing the payload + * @size: size of payload buffer + * + * Like mipi_dsi_generic_write_chatty() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_generic_write_multi(struct mipi_dsi_multi_context *ctx, + const void *payload, size_t size) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_generic_write(dsi, payload, size); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending generic data %*ph failed: %d\n", + (int)size, payload, ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_generic_write_multi); + +/** * mipi_dsi_generic_read() - receive data using a generic read packet * @dsi: DSI peripheral device * @params: buffer containing the request parameters @@ -853,6 +909,62 @@ ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi, EXPORT_SYMBOL(mipi_dsi_dcs_write_buffer); /** + * mipi_dsi_dcs_write_buffer_chatty - mipi_dsi_dcs_write_buffer() w/ an error log + * @dsi: DSI peripheral device + * @data: buffer containing data to be transmitted + * @len: size of transmission buffer + * + * Like mipi_dsi_dcs_write_buffer() but includes a dev_err() + * call for you and returns 0 upon success, not the number of bytes sent. + * + * Return: 0 on success or a negative error code on failure. + */ +int mipi_dsi_dcs_write_buffer_chatty(struct mipi_dsi_device *dsi, + const void *data, size_t len) +{ + struct device *dev = &dsi->dev; + ssize_t ret; + + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); + if (ret < 0) { + dev_err(dev, "sending dcs data %*ph failed: %zd\n", + (int)len, data, ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL(mipi_dsi_dcs_write_buffer_chatty); + +/** + * mipi_dsi_dcs_write_buffer_multi - mipi_dsi_dcs_write_buffer_chatty() w/ accum_err + * @ctx: Context for multiple DSI transactions + * @data: buffer containing data to be transmitted + * @len: size of transmission buffer + * + * Like mipi_dsi_dcs_write_buffer_chatty() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_write_buffer_multi(struct mipi_dsi_multi_context *ctx, + const void *data, size_t len) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending dcs data %*ph failed: %d\n", + (int)len, data, ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_write_buffer_multi); + +/** * mipi_dsi_dcs_write() - send DCS write command * @dsi: DSI peripheral device * @cmd: DCS command @@ -1317,6 +1429,216 @@ int mipi_dsi_dcs_get_display_brightness_large(struct mipi_dsi_device *dsi, } EXPORT_SYMBOL(mipi_dsi_dcs_get_display_brightness_large); +/** + * mipi_dsi_picture_parameter_set_multi() - transmit the DSC PPS to the peripheral + * @ctx: Context for multiple DSI transactions + * @pps: VESA DSC 1.1 Picture Parameter Set + * + * Like mipi_dsi_picture_parameter_set() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_picture_parameter_set_multi(struct mipi_dsi_multi_context *ctx, + const struct drm_dsc_picture_parameter_set *pps) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_picture_parameter_set(dsi, pps); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending PPS failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_picture_parameter_set_multi); + +/** + * mipi_dsi_compression_mode_ext_multi() - enable/disable DSC on the peripheral + * @ctx: Context for multiple DSI transactions + * @enable: Whether to enable or disable the DSC + * @algo: Selected compression algorithm + * @pps_selector: Select PPS from the table of pre-stored or uploaded PPS entries + * + * Like mipi_dsi_compression_mode_ext() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_compression_mode_ext_multi(struct mipi_dsi_multi_context *ctx, + bool enable, + enum mipi_dsi_compression_algo algo, + unsigned int pps_selector) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_compression_mode_ext(dsi, enable, algo, pps_selector); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending COMPRESSION_MODE failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_compression_mode_ext_multi); + +/** + * mipi_dsi_dcs_nop_multi() - send DCS NOP packet + * @ctx: Context for multiple DSI transactions + * + * Like mipi_dsi_dcs_nop() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_nop_multi(struct mipi_dsi_multi_context *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_nop(dsi); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS NOP failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_nop_multi); + +/** + * mipi_dsi_dcs_enter_sleep_mode_multi() - send DCS ENTER_SLEEP_MODE packet + * @ctx: Context for multiple DSI transactions + * + * Like mipi_dsi_dcs_enter_sleep_mode() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_enter_sleep_mode_multi(struct mipi_dsi_multi_context *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS ENTER_SLEEP_MODE failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_enter_sleep_mode_multi); + +/** + * mipi_dsi_dcs_exit_sleep_mode_multi() - send DCS EXIT_SLEEP_MODE packet + * @ctx: Context for multiple DSI transactions + * + * Like mipi_dsi_dcs_exit_sleep_mode() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_exit_sleep_mode_multi(struct mipi_dsi_multi_context *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS EXIT_SLEEP_MODE failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_exit_sleep_mode_multi); + +/** + * mipi_dsi_dcs_set_display_off_multi() - send DCS SET_DISPLAY_OFF packet + * @ctx: Context for multiple DSI transactions + * + * Like mipi_dsi_dcs_set_display_off() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_set_display_off_multi(struct mipi_dsi_multi_context *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS SET_DISPLAY_OFF failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_set_display_off_multi); + +/** + * mipi_dsi_dcs_set_display_on_multi() - send DCS SET_DISPLAY_ON packet + * @ctx: Context for multiple DSI transactions + * + * Like mipi_dsi_dcs_set_display_on() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_set_display_on_multi(struct mipi_dsi_multi_context *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS SET_DISPLAY_ON failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_set_display_on_multi); + +/** + * mipi_dsi_dcs_set_tear_on_multi() - send DCS SET_TEAR_ON packet + * @ctx: Context for multiple DSI transactions + * @mode: the Tearing Effect Output Line mode + * + * Like mipi_dsi_dcs_set_tear_on() but deals with errors in a way that + * makes it convenient to make several calls in a row. + */ +void mipi_dsi_dcs_set_tear_on_multi(struct mipi_dsi_multi_context *ctx, + enum mipi_dsi_dcs_tear_mode mode) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + ssize_t ret; + + if (ctx->accum_err) + return; + + ret = mipi_dsi_dcs_set_tear_on(dsi, mode); + if (ret < 0) { + ctx->accum_err = ret; + dev_err(dev, "sending DCS SET_TEAR_ON failed: %d\n", + ctx->accum_err); + } +} +EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_on_multi); + static int mipi_dsi_drv_probe(struct device *dev) { struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver); |