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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015 Broadcom
* Copyright (c) 2014 The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#include "vc4_hdmi.h"
#include "vc4_regs.h"
#include "vc4_hdmi_regs.h"
void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, struct drm_display_mode *mode)
{
/* PHY should be in reset, like
* vc4_hdmi_encoder_disable() does.
*/
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0);
}
void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
{
HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16);
}
void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi)
{
HDMI_WRITE(HDMI_TX_PHY_CTL_0,
HDMI_READ(HDMI_TX_PHY_CTL_0) &
~VC4_HDMI_TX_PHY_RNG_PWRDN);
}
void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi)
{
HDMI_WRITE(HDMI_TX_PHY_CTL_0,
HDMI_READ(HDMI_TX_PHY_CTL_0) |
VC4_HDMI_TX_PHY_RNG_PWRDN);
}
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