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/*
* Copyright (C) 2013-2014 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 "adreno_gpu.h"
#if defined(CONFIG_MSM_BUS_SCALING) && !defined(CONFIG_OF)
# include <mach/kgsl.h>
#endif
static void set_gpu_pdev(struct drm_device *dev,
struct platform_device *pdev)
{
struct msm_drm_private *priv = dev->dev_private;
priv->gpu_pdev = pdev;
}
static int adreno_bind(struct device *dev, struct device *master, void *data)
{
static struct adreno_platform_config config = {};
#ifdef CONFIG_OF
struct device_node *child, *node = dev->of_node;
u32 val;
int ret;
ret = of_property_read_u32(node, "qcom,chipid", &val);
if (ret) {
dev_err(dev, "could not find chipid: %d\n", ret);
return ret;
}
config.rev = ADRENO_REV((val >> 24) & 0xff,
(val >> 16) & 0xff, (val >> 8) & 0xff, val & 0xff);
/* find clock rates: */
config.fast_rate = 0;
config.slow_rate = ~0;
for_each_child_of_node(node, child) {
if (of_device_is_compatible(child, "qcom,gpu-pwrlevels")) {
struct device_node *pwrlvl;
for_each_child_of_node(child, pwrlvl) {
ret = of_property_read_u32(pwrlvl, "qcom,gpu-freq", &val);
if (ret) {
dev_err(dev, "could not find gpu-freq: %d\n", ret);
return ret;
}
config.fast_rate = max(config.fast_rate, val);
config.slow_rate = min(config.slow_rate, val);
}
}
}
if (!config.fast_rate) {
dev_err(dev, "could not find clk rates\n");
return -ENXIO;
}
#else
struct kgsl_device_platform_data *pdata = dev->platform_data;
uint32_t version = socinfo_get_version();
if (cpu_is_apq8064ab()) {
config.fast_rate = 450000000;
config.slow_rate = 27000000;
config.bus_freq = 4;
config.rev = ADRENO_REV(3, 2, 1, 0);
} else if (cpu_is_apq8064()) {
config.fast_rate = 400000000;
config.slow_rate = 27000000;
config.bus_freq = 4;
if (SOCINFO_VERSION_MAJOR(version) == 2)
config.rev = ADRENO_REV(3, 2, 0, 2);
else if ((SOCINFO_VERSION_MAJOR(version) == 1) &&
(SOCINFO_VERSION_MINOR(version) == 1))
config.rev = ADRENO_REV(3, 2, 0, 1);
else
config.rev = ADRENO_REV(3, 2, 0, 0);
} else if (cpu_is_msm8960ab()) {
config.fast_rate = 400000000;
config.slow_rate = 320000000;
config.bus_freq = 4;
if (SOCINFO_VERSION_MINOR(version) == 0)
config.rev = ADRENO_REV(3, 2, 1, 0);
else
config.rev = ADRENO_REV(3, 2, 1, 1);
} else if (cpu_is_msm8930()) {
config.fast_rate = 400000000;
config.slow_rate = 27000000;
config.bus_freq = 3;
if ((SOCINFO_VERSION_MAJOR(version) == 1) &&
(SOCINFO_VERSION_MINOR(version) == 2))
config.rev = ADRENO_REV(3, 0, 5, 2);
else
config.rev = ADRENO_REV(3, 0, 5, 0);
}
# ifdef CONFIG_MSM_BUS_SCALING
config.bus_scale_table = pdata->bus_scale_table;
# endif
#endif
dev->platform_data = &config;
set_gpu_pdev(dev_get_drvdata(master), to_platform_device(dev));
return 0;
}
static void adreno_unbind(struct device *dev, struct device *master,
void *data)
{
set_gpu_pdev(dev_get_drvdata(master), NULL);
}
static const struct component_ops a3xx_ops = {
.bind = adreno_bind,
.unbind = adreno_unbind,
};
static int adreno_probe(struct platform_device *pdev)
{
return component_add(&pdev->dev, &a3xx_ops);
}
static int adreno_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &a3xx_ops);
return 0;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,adreno-3xx" },
/* for backwards compat w/ downstream kgsl DT files: */
{ .compatible = "qcom,kgsl-3d0" },
{}
};
static struct platform_driver adreno_driver = {
.probe = adreno_probe,
.remove = adreno_remove,
.driver = {
.name = "adreno",
.of_match_table = dt_match,
},
};
void __init adreno_register(void)
{
platform_driver_register(&adreno_driver);
}
void __exit adreno_unregister(void)
{
platform_driver_unregister(&adreno_driver);
}
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