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/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "hdmi.h"
static struct platform_device *hdmi_pdev;
void hdmi_set_mode(struct hdmi *hdmi, bool power_on)
{
uint32_t ctrl = 0;
if (power_on) {
ctrl |= HDMI_CTRL_ENABLE;
if (!hdmi->hdmi_mode) {
ctrl |= HDMI_CTRL_HDMI;
hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
ctrl &= ~HDMI_CTRL_HDMI;
} else {
ctrl |= HDMI_CTRL_HDMI;
}
} else {
ctrl = HDMI_CTRL_HDMI;
}
hdmi_write(hdmi, REG_HDMI_CTRL, ctrl);
DBG("HDMI Core: %s, HDMI_CTRL=0x%08x",
power_on ? "Enable" : "Disable", ctrl);
}
static irqreturn_t hdmi_irq(int irq, void *dev_id)
{
struct hdmi *hdmi = dev_id;
/* Process HPD: */
hdmi_connector_irq(hdmi->connector);
/* Process DDC: */
hdmi_i2c_irq(hdmi->i2c);
/* TODO audio.. */
return IRQ_HANDLED;
}
void hdmi_destroy(struct hdmi *hdmi)
{
struct hdmi_phy *phy = hdmi->phy;
if (phy)
phy->funcs->destroy(phy);
if (hdmi->i2c)
hdmi_i2c_destroy(hdmi->i2c);
put_device(&hdmi->pdev->dev);
}
/* initialize connector */
int hdmi_init(struct hdmi *hdmi, struct drm_device *dev,
struct drm_connector *connector)
{
struct platform_device *pdev = hdmi_pdev;
struct hdmi_platform_config *config;
int ret;
if (!pdev) {
dev_err(dev->dev, "no hdmi device\n");
ret = -ENXIO;
goto fail;
}
config = pdev->dev.platform_data;
get_device(&pdev->dev);
hdmi->dev = dev;
hdmi->pdev = pdev;
hdmi->connector = connector;
/* not sure about which phy maps to which msm.. probably I miss some */
if (config->phy_init)
hdmi->phy = config->phy_init(hdmi);
else
hdmi->phy = ERR_PTR(-ENXIO);
if (IS_ERR(hdmi->phy)) {
ret = PTR_ERR(hdmi->phy);
dev_err(dev->dev, "failed to load phy: %d\n", ret);
hdmi->phy = NULL;
goto fail;
}
hdmi->mmio = msm_ioremap(pdev, "hdmi_msm_hdmi_addr", "HDMI");
if (IS_ERR(hdmi->mmio)) {
ret = PTR_ERR(hdmi->mmio);
goto fail;
}
hdmi->mvs = devm_regulator_get(&pdev->dev, "8901_hdmi_mvs");
if (IS_ERR(hdmi->mvs))
hdmi->mvs = devm_regulator_get(&pdev->dev, "hdmi_mvs");
if (IS_ERR(hdmi->mvs)) {
ret = PTR_ERR(hdmi->mvs);
dev_err(dev->dev, "failed to get mvs regulator: %d\n", ret);
goto fail;
}
hdmi->mpp0 = devm_regulator_get(&pdev->dev, "8901_mpp0");
if (IS_ERR(hdmi->mpp0))
hdmi->mpp0 = NULL;
hdmi->clk = devm_clk_get(&pdev->dev, "core_clk");
if (IS_ERR(hdmi->clk)) {
ret = PTR_ERR(hdmi->clk);
dev_err(dev->dev, "failed to get 'clk': %d\n", ret);
goto fail;
}
hdmi->m_pclk = devm_clk_get(&pdev->dev, "master_iface_clk");
if (IS_ERR(hdmi->m_pclk)) {
ret = PTR_ERR(hdmi->m_pclk);
dev_err(dev->dev, "failed to get 'm_pclk': %d\n", ret);
goto fail;
}
hdmi->s_pclk = devm_clk_get(&pdev->dev, "slave_iface_clk");
if (IS_ERR(hdmi->s_pclk)) {
ret = PTR_ERR(hdmi->s_pclk);
dev_err(dev->dev, "failed to get 's_pclk': %d\n", ret);
goto fail;
}
hdmi->i2c = hdmi_i2c_init(hdmi);
if (IS_ERR(hdmi->i2c)) {
ret = PTR_ERR(hdmi->i2c);
dev_err(dev->dev, "failed to get i2c: %d\n", ret);
hdmi->i2c = NULL;
goto fail;
}
hdmi->irq = platform_get_irq(pdev, 0);
if (hdmi->irq < 0) {
ret = hdmi->irq;
dev_err(dev->dev, "failed to get irq: %d\n", ret);
goto fail;
}
ret = devm_request_threaded_irq(&pdev->dev, hdmi->irq,
NULL, hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"hdmi_isr", hdmi);
if (ret < 0) {
dev_err(dev->dev, "failed to request IRQ%u: %d\n",
hdmi->irq, ret);
goto fail;
}
return 0;
fail:
if (hdmi)
hdmi_destroy(hdmi);
return ret;
}
/*
* The hdmi device:
*/
static int hdmi_dev_probe(struct platform_device *pdev)
{
static struct hdmi_platform_config config = {};
#ifdef CONFIG_OF
/* TODO */
#else
if (cpu_is_apq8064()) {
config.phy_init = hdmi_phy_8960_init;
config.ddc_clk_gpio = 70;
config.ddc_data_gpio = 71;
config.hpd_gpio = 72;
config.pmic_gpio = 13 + NR_GPIO_IRQS;
} else if (cpu_is_msm8960()) {
config.phy_init = hdmi_phy_8960_init;
config.ddc_clk_gpio = 100;
config.ddc_data_gpio = 101;
config.hpd_gpio = 102;
config.pmic_gpio = -1;
} else if (cpu_is_msm8x60()) {
config.phy_init = hdmi_phy_8x60_init;
config.ddc_clk_gpio = 170;
config.ddc_data_gpio = 171;
config.hpd_gpio = 172;
config.pmic_gpio = -1;
}
#endif
pdev->dev.platform_data = &config;
hdmi_pdev = pdev;
return 0;
}
static int hdmi_dev_remove(struct platform_device *pdev)
{
hdmi_pdev = NULL;
return 0;
}
static struct platform_driver hdmi_driver = {
.probe = hdmi_dev_probe,
.remove = hdmi_dev_remove,
.driver.name = "hdmi_msm",
};
void __init hdmi_register(void)
{
platform_driver_register(&hdmi_driver);
}
void __exit hdmi_unregister(void)
{
platform_driver_unregister(&hdmi_driver);
}
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