mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-27 15:36:48 +00:00
8c7c767a5e
Fix compile-time warnings
drivers/gpu/drm/bridge/analogix/analogix-i2c-dptx.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/aux-bridge.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/aux-hpd-bridge.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/panel.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/samsung-dsim.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/drm_bridge.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/gpu/drm/drm_bridge_helper.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: a934a57a42 ("scripts/misc-check: check missing #include <linux/export.h> when W=1")
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250612121633.229222-4-tzimmermann@suse.de
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#include <linux/export.h>
|
|
|
|
#include <drm/drm_atomic.h>
|
|
#include <drm/drm_atomic_helper.h>
|
|
#include <drm/drm_bridge.h>
|
|
#include <drm/drm_bridge_helper.h>
|
|
#include <drm/drm_modeset_lock.h>
|
|
|
|
/**
|
|
* drm_bridge_helper_reset_crtc - Reset the pipeline feeding a bridge
|
|
* @bridge: DRM bridge to reset
|
|
* @ctx: lock acquisition context
|
|
*
|
|
* Reset a @bridge pipeline. It will power-cycle all active components
|
|
* between the CRTC and connector that bridge is connected to.
|
|
*
|
|
* As it relies on drm_atomic_helper_reset_crtc(), the same limitations
|
|
* apply.
|
|
*
|
|
* Returns:
|
|
*
|
|
* 0 on success or a negative error code on failure. If the error
|
|
* returned is EDEADLK, the whole atomic sequence must be restarted.
|
|
*/
|
|
int drm_bridge_helper_reset_crtc(struct drm_bridge *bridge,
|
|
struct drm_modeset_acquire_ctx *ctx)
|
|
{
|
|
struct drm_connector *connector;
|
|
struct drm_encoder *encoder = bridge->encoder;
|
|
struct drm_device *dev = encoder->dev;
|
|
struct drm_crtc *crtc;
|
|
int ret;
|
|
|
|
ret = drm_modeset_lock(&dev->mode_config.connection_mutex, ctx);
|
|
if (ret)
|
|
return ret;
|
|
|
|
connector = drm_atomic_get_connector_for_encoder(encoder, ctx);
|
|
if (IS_ERR(connector)) {
|
|
ret = PTR_ERR(connector);
|
|
goto out;
|
|
}
|
|
|
|
if (!connector->state) {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
crtc = connector->state->crtc;
|
|
ret = drm_atomic_helper_reset_crtc(crtc, ctx);
|
|
if (ret)
|
|
goto out;
|
|
|
|
out:
|
|
drm_modeset_unlock(&dev->mode_config.connection_mutex);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(drm_bridge_helper_reset_crtc);
|