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authorJavier Martinez Canillas <javierm@redhat.com>2023-01-02 21:25:42 +0100
committerJavier Martinez Canillas <javierm@redhat.com>2023-01-07 14:22:04 +0100
commita9015ce593204f487bcb3069c5908155ccc59f30 (patch)
treecfe309c51283e38f823d03929b036e1edf939e75 /include/drm/drm_mipi_dsi.h
parent51d3c0e7dc3cf1dd91c34b0f9bdadda310c7ed5b (diff)
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 2a9e9daf75231 ("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: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230102202542.3494677-2-javierm@redhat.com
Diffstat (limited to 'include/drm/drm_mipi_dsi.h')
-rw-r--r--include/drm/drm_mipi_dsi.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index e9d1e8a7fc7e..4f503d99f668 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -298,6 +298,24 @@ 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
* @cmd: Command