ea9f337ce8
DP_SW_RESET is the global SW reset that is used to initialize DP
controller. If DP_SW_RESET executed during connection setup,
two HPD related side effects may occurred,
1) pending HPD interrupts cleared unexpected
2) re start debounce logic which trigger another interrupt
This patch only issue DP_SW_RESET at boot up and pm_resume.
This patch also reinit video_comp before configure dp controller
to avoid missing VIDEO_READY interrupt.
Fixes: 9fc418430c65 ("drm/msm/dp: unplug interrupt missed after irq_hpd handler")
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DP_CTRL_H_
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#define _DP_CTRL_H_
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#include "dp_aux.h"
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#include "dp_panel.h"
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#include "dp_link.h"
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#include "dp_parser.h"
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#include "dp_power.h"
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#include "dp_catalog.h"
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struct dp_ctrl {
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bool orientation;
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atomic_t aborted;
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u32 pixel_rate;
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};
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int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool flip, bool reset);
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void dp_ctrl_host_deinit(struct dp_ctrl *dp_ctrl);
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int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl);
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int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl);
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int dp_ctrl_off(struct dp_ctrl *dp_ctrl);
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void dp_ctrl_push_idle(struct dp_ctrl *dp_ctrl);
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void dp_ctrl_isr(struct dp_ctrl *dp_ctrl);
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void dp_ctrl_handle_sink_request(struct dp_ctrl *dp_ctrl);
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struct dp_ctrl *dp_ctrl_get(struct device *dev, struct dp_link *link,
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struct dp_panel *panel, struct drm_dp_aux *aux,
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struct dp_power *power, struct dp_catalog *catalog,
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struct dp_parser *parser);
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void dp_ctrl_put(struct dp_ctrl *dp_ctrl);
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#endif /* _DP_CTRL_H_ */
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