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authorDaniel Vetter <daniel.vetter@ffwll.ch>2024-08-27 12:25:26 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2024-08-27 12:25:27 +0200
commitf9ae00b1cfb37ccf57017bf9cd82712ee0a5316b (patch)
tree9c29f083f19c535e6fa92ee3d00b12b9647c76e3 /drivers/gpu/drm/drm_mipi_dsi.c
parent11df68c265460d4dff5d19a1313f0fff69470f98 (diff)
parentf60ef67ff21ede6f3d27d439a136481446dbd8aa (diff)
Merge tag 'drm-misc-next-2024-08-22' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v6.12: Cross-subsystem Changes: string: - add mem_is_zero() Core Changes: edid: - use mem_is_zero() Driver Changes: ast: - reorganize output code by type (VGA, DP, etc) - convert to struct drm_edid - fix BMC handling for all outputs bridge: - anx7625: simplify OF array handling - dw-hdmi: simplify clock handling - lontium-lt8912b: fix mode validation - nwl-dsi: fix mode vsync/hsync polarity panel: - ili9341: fix comments - jd9365da: fix "exit sleep" commands - jdi-fhd-r63452: simplify error handling with DSI multi-style helpers - mantix-mlaf057we51: simplify error handling with DSI multi-style helpers - simple: support Innolux G070ACE-LH3 plus DT bindings; support On Tat Industrial Company KD50G21-40NT-A1 plus DT bindings - st7701: decouple DSI and DRM code; add SPI support; support Anbernic RG28XX plus DT bindings vc4: - fix PM during detect - replace DRM_ERROR() with drm_error() - v3d: simplify clock retrieval Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20240822150710.GA243952@localhost.localdomain
Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dsi.c')
-rw-r--r--drivers/gpu/drm/drm_mipi_dsi.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 2d96c0cd9b7e..2bc3973d35a1 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -1339,6 +1339,9 @@ EXPORT_SYMBOL(mipi_dsi_dcs_set_pixel_format);
* @dsi: DSI peripheral device
* @scanline: scanline to use as trigger
*
+ * This function is deprecated. Use mipi_dsi_dcs_set_tear_scanline_multi()
+ * instead.
+ *
* Return: 0 on success or a negative error code on failure
*/
int mipi_dsi_dcs_set_tear_scanline(struct mipi_dsi_device *dsi, u16 scanline)
@@ -1833,6 +1836,34 @@ void mipi_dsi_dcs_set_page_address_multi(struct mipi_dsi_multi_context *ctx,
}
EXPORT_SYMBOL(mipi_dsi_dcs_set_page_address_multi);
+/**
+ * mipi_dsi_dcs_set_tear_scanline_multi() - set the scanline to use as trigger for
+ * the Tearing Effect output signal of the display module
+ * @ctx: Context for multiple DSI transactions
+ * @scanline: scanline to use as trigger
+ *
+ * Like mipi_dsi_dcs_set_tear_scanline() but deals with errors in a way that
+ * makes it convenient to make several calls in a row.
+ */
+void mipi_dsi_dcs_set_tear_scanline_multi(struct mipi_dsi_multi_context *ctx,
+ u16 scanline)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ if (ctx->accum_err)
+ return;
+
+ ret = mipi_dsi_dcs_set_tear_scanline(dsi, scanline);
+ if (ret < 0) {
+ ctx->accum_err = ret;
+ dev_err(dev, "Failed to set tear scanline: %d\n",
+ ctx->accum_err);
+ }
+}
+EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_scanline_multi);
+
static int mipi_dsi_drv_probe(struct device *dev)
{
struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);