diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/adreno_device.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_device.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c new file mode 100644 index 000000000000..124e23d63018 --- /dev/null +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -0,0 +1,169 @@ +/* + * 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); +} |