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49393b2da1
At least version 2 of the HDMI PHY, found in MediaTek MT8195 and MT8188 SoCs, does provide hardware support to switch on/off the HDMI 5V pins (which are also used for DDC), and this translates to this being a fixed regulator. Register this PHY-provided regulator so that it can be fed to the hdmi-connector driver to manage the HDMI +5V PWR rail. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20241120124143.132637-1-angelogioacchino.delregno@collabora.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2018 MediaTek Inc.
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* Author: Chunhui Dai <chunhui.dai@mediatek.com>
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*/
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#ifndef _MTK_HDMI_PHY_H
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#define _MTK_HDMI_PHY_H
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#include <linux/clk.h>
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#include <linux/clk-provider.h>
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#include <linux/delay.h>
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/phy/phy.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/types.h>
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struct mtk_hdmi_phy;
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struct mtk_hdmi_phy_conf {
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unsigned long flags;
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bool pll_default_off;
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const struct regulator_desc *hdmi_phy_regulator_desc;
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const struct clk_ops *hdmi_phy_clk_ops;
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void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
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void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
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int (*hdmi_phy_configure)(struct phy *phy, union phy_configure_opts *opts);
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};
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struct mtk_hdmi_phy {
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void __iomem *regs;
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struct device *dev;
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struct mtk_hdmi_phy_conf *conf;
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struct clk *pll;
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struct clk_hw pll_hw;
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struct regulator_dev *rdev;
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unsigned long pll_rate;
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unsigned char drv_imp_clk;
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unsigned char drv_imp_d2;
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unsigned char drv_imp_d1;
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unsigned char drv_imp_d0;
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unsigned int ibias;
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unsigned int ibias_up;
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bool tmds_over_340M;
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};
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struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);
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extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf;
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extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
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extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;
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#endif /* _MTK_HDMI_PHY_H */
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