6cba3fe433
This is something that we've wanted for a while now: the ability to actually look up the respective drm_device for a given drm_dp_aux struct. This will also allow us to transition over to using the drm_dbg_*() helpers for debug message printing, as we'll finally have a drm_device to reference for doing so. Note that there is one limitation with this - because some DP AUX adapters exist as platform devices which are initialized independently of their respective DRM devices, one cannot rely on drm_dp_aux->drm_dev to always be non-NULL until drm_dp_aux_register() has been called. We make sure to point this out in the documentation for struct drm_dp_aux. v3: * Add WARN_ON_ONCE() to drm_dp_aux_register() if drm_dev isn't filled out Signed-off-by: Lyude Paul <lyude@redhat.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-4-lyude@redhat.com Reviewed-by: Dave Airlie <airlied@redhat.com>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*/
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#ifndef __EDP_CONNECTOR_H__
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#define __EDP_CONNECTOR_H__
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#include <linux/i2c.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <drm/drm_bridge.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_dp_helper.h>
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#include "msm_drv.h"
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#define edp_read(offset) msm_readl((offset))
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#define edp_write(offset, data) msm_writel((data), (offset))
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struct edp_ctrl;
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struct edp_aux;
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struct edp_phy;
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struct msm_edp {
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struct drm_device *dev;
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struct platform_device *pdev;
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struct drm_connector *connector;
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struct drm_bridge *bridge;
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/* the encoder we are hooked to (outside of eDP block) */
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struct drm_encoder *encoder;
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struct edp_ctrl *ctrl;
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int irq;
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};
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/* eDP bridge */
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struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp);
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void edp_bridge_destroy(struct drm_bridge *bridge);
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/* eDP connector */
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struct drm_connector *msm_edp_connector_init(struct msm_edp *edp);
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/* AUX */
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void *msm_edp_aux_init(struct msm_edp *edp, void __iomem *regbase, struct drm_dp_aux **drm_aux);
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void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux);
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irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr);
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void msm_edp_aux_ctrl(struct edp_aux *aux, int enable);
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/* Phy */
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bool msm_edp_phy_ready(struct edp_phy *phy);
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void msm_edp_phy_ctrl(struct edp_phy *phy, int enable);
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void msm_edp_phy_vm_pe_init(struct edp_phy *phy);
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void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1);
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void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane);
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void *msm_edp_phy_init(struct device *dev, void __iomem *regbase);
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/* Ctrl */
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irqreturn_t msm_edp_ctrl_irq(struct edp_ctrl *ctrl);
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void msm_edp_ctrl_power(struct edp_ctrl *ctrl, bool on);
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int msm_edp_ctrl_init(struct msm_edp *edp);
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void msm_edp_ctrl_destroy(struct edp_ctrl *ctrl);
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bool msm_edp_ctrl_panel_connected(struct edp_ctrl *ctrl);
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int msm_edp_ctrl_get_panel_info(struct edp_ctrl *ctrl,
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struct drm_connector *connector, struct edid **edid);
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int msm_edp_ctrl_timing_cfg(struct edp_ctrl *ctrl,
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const struct drm_display_mode *mode,
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const struct drm_display_info *info);
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/* @pixel_rate is in kHz */
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bool msm_edp_ctrl_pixel_clock_valid(struct edp_ctrl *ctrl,
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u32 pixel_rate, u32 *pm, u32 *pn);
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#endif /* __EDP_CONNECTOR_H__ */
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