mirror of https://gitee.com/openkylin/linux.git
101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hdmi.h"
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struct hdmi_phy_8x74 {
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struct hdmi_phy base;
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void __iomem *mmio;
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};
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#define to_hdmi_phy_8x74(x) container_of(x, struct hdmi_phy_8x74, base)
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static void phy_write(struct hdmi_phy_8x74 *phy, u32 reg, u32 data)
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{
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msm_writel(data, phy->mmio + reg);
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}
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//static u32 phy_read(struct hdmi_phy_8x74 *phy, u32 reg)
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//{
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// return msm_readl(phy->mmio + reg);
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//}
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static void hdmi_phy_8x74_destroy(struct hdmi_phy *phy)
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{
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struct hdmi_phy_8x74 *phy_8x74 = to_hdmi_phy_8x74(phy);
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kfree(phy_8x74);
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}
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static void hdmi_phy_8x74_powerup(struct hdmi_phy *phy,
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unsigned long int pixclock)
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{
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struct hdmi_phy_8x74 *phy_8x74 = to_hdmi_phy_8x74(phy);
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phy_write(phy_8x74, REG_HDMI_8x74_ANA_CFG0, 0x1b);
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phy_write(phy_8x74, REG_HDMI_8x74_ANA_CFG1, 0xf2);
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phy_write(phy_8x74, REG_HDMI_8x74_BIST_CFG0, 0x0);
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phy_write(phy_8x74, REG_HDMI_8x74_BIST_PATN0, 0x0);
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phy_write(phy_8x74, REG_HDMI_8x74_BIST_PATN1, 0x0);
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phy_write(phy_8x74, REG_HDMI_8x74_BIST_PATN2, 0x0);
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phy_write(phy_8x74, REG_HDMI_8x74_BIST_PATN3, 0x0);
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phy_write(phy_8x74, REG_HDMI_8x74_PD_CTRL1, 0x20);
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}
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static void hdmi_phy_8x74_powerdown(struct hdmi_phy *phy)
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{
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struct hdmi_phy_8x74 *phy_8x74 = to_hdmi_phy_8x74(phy);
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phy_write(phy_8x74, REG_HDMI_8x74_PD_CTRL0, 0x7f);
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}
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static const struct hdmi_phy_funcs hdmi_phy_8x74_funcs = {
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.destroy = hdmi_phy_8x74_destroy,
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.powerup = hdmi_phy_8x74_powerup,
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.powerdown = hdmi_phy_8x74_powerdown,
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};
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struct hdmi_phy *hdmi_phy_8x74_init(struct hdmi *hdmi)
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{
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struct hdmi_phy_8x74 *phy_8x74;
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struct hdmi_phy *phy = NULL;
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int ret;
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phy_8x74 = kzalloc(sizeof(*phy_8x74), GFP_KERNEL);
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if (!phy_8x74) {
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ret = -ENOMEM;
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goto fail;
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}
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phy = &phy_8x74->base;
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phy->funcs = &hdmi_phy_8x74_funcs;
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/* for 8x74, the phy mmio is mapped separately: */
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phy_8x74->mmio = msm_ioremap(hdmi->pdev,
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"phy_physical", "HDMI_8x74");
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if (IS_ERR(phy_8x74->mmio)) {
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ret = PTR_ERR(phy_8x74->mmio);
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goto fail;
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}
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return phy;
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fail:
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if (phy)
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hdmi_phy_8x74_destroy(phy);
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return ERR_PTR(ret);
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}
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