Unverified Commit a9015ce5 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas
Browse files

drm/mipi-dsi: Add a mipi_dsi_dcs_write_seq() macro 



Many panel drivers define dsi_dcs_write_seq() and dsi_generic_write_seq()
macros to send DCS commands and generic write packets respectively, with
the payload specified as a list of parameters instead of using arrays.

There's already a macro for the former, introduced by commit 2a9e9daf
("drm/mipi-dsi: Introduce mipi_dsi_dcs_write_seq macro") so drivers can be
changed to use that. But there isn't one yet for the latter, let's add it.

Signed-off-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230102202542.3494677-2-javierm@redhat.com
parent 51d3c0e7

include/drm/drm_mipi_dsi.h

+18 −0
Original line number Diff line number Diff line
@@ -297,6 +297,24 @@ int mipi_dsi_dcs_set_display_brightness(struct mipi_dsi_device *dsi, 
int mipi_dsi_dcs_get_display_brightness(struct mipi_dsi_device *dsi,

					u16 *brightness);



/**

 * mipi_dsi_generic_write_seq - transmit data using a generic write packet

 * @dsi: DSI peripheral device

 * @seq: buffer containing the payload

 */

#define mipi_dsi_generic_write_seq(dsi, seq...)                                \

	do {                                                                   \

		static const u8 d[] = { seq };                                 \

		struct device *dev = &dsi->dev;                                \

		int ret;                                                       \

		ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d));           \

		if (ret < 0) {                                                 \

			dev_err_ratelimited(dev, "transmit data failed: %d\n", \

					    ret);                              \

			return ret;                                            \

		}                                                              \

	} while (0)



/**

 * mipi_dsi_dcs_write_seq - transmit a DCS command with payload

 * @dsi: DSI peripheral device