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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
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <linux/export.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_bridge.h>
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#include <drm/drm_bridge_helper.h>
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#include <drm/drm_modeset_lock.h>
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/**
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* drm_bridge_helper_reset_crtc - Reset the pipeline feeding a bridge
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* @bridge: DRM bridge to reset
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* @ctx: lock acquisition context
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*
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* Reset a @bridge pipeline. It will power-cycle all active components
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* between the CRTC and connector that bridge is connected to.
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*
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* As it relies on drm_atomic_helper_reset_crtc(), the same limitations
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* apply.
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*
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* Returns:
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*
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* 0 on success or a negative error code on failure. If the error
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* returned is EDEADLK, the whole atomic sequence must be restarted.
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*/
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int drm_bridge_helper_reset_crtc(struct drm_bridge *bridge,
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struct drm_modeset_acquire_ctx *ctx)
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{
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struct drm_connector *connector;
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struct drm_encoder *encoder = bridge->encoder;
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struct drm_device *dev = encoder->dev;
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struct drm_crtc *crtc;
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int ret;
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ret = drm_modeset_lock(&dev->mode_config.connection_mutex, ctx);
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if (ret)
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return ret;
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connector = drm_atomic_get_connector_for_encoder(encoder, ctx);
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if (IS_ERR(connector)) {
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ret = PTR_ERR(connector);
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goto out;
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}
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if (!connector->state) {
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ret = -EINVAL;
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goto out;
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}
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crtc = connector->state->crtc;
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ret = drm_atomic_helper_reset_crtc(crtc, ctx);
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if (ret)
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goto out;
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out:
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drm_modeset_unlock(&dev->mode_config.connection_mutex);
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return ret;
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}
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EXPORT_SYMBOL(drm_bridge_helper_reset_crtc);
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