diff options
Diffstat (limited to 'drivers/gpu/pvr/services4/system/omap4/sgxfreq_onoff.c')
| -rw-r--r-- | drivers/gpu/pvr/services4/system/omap4/sgxfreq_onoff.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/gpu/pvr/services4/system/omap4/sgxfreq_onoff.c b/drivers/gpu/pvr/services4/system/omap4/sgxfreq_onoff.c deleted file mode 100644 index 39dd3fc5c42..00000000000 --- a/drivers/gpu/pvr/services4/system/omap4/sgxfreq_onoff.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Copyright (C) 2012 Texas Instruments, Inc - * - * 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 <linux/sysfs.h> -#include "sgxfreq.h" - -static int onoff_start(struct sgxfreq_sgx_data *data); -static void onoff_stop(void); -static void onoff_sgx_clk_on(void); -static void onoff_sgx_clk_off(void); - -static struct onoff_data { - unsigned long freq_off; - unsigned long freq_on; - struct mutex mutex; - bool sgx_clk_on; -} ood; - -static struct sgxfreq_governor onoff_gov = { - .name = "onoff", - .gov_start = onoff_start, - .gov_stop = onoff_stop, - .sgx_clk_on = onoff_sgx_clk_on, - .sgx_clk_off = onoff_sgx_clk_off, -}; - -/*********************** begin sysfs interface ***********************/ - -extern struct kobject *sgxfreq_kobj; - -static ssize_t show_freq_on(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%lu\n", ood.freq_on); -} - -static ssize_t store_freq_on(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - int ret; - unsigned long freq; - - ret = sscanf(buf, "%lu", &freq); - if (ret != 1) - return -EINVAL; - - freq = sgxfreq_get_freq_ceil(freq); - - mutex_lock(&ood.mutex); - - ood.freq_on = freq; - if (ood.sgx_clk_on) - sgxfreq_set_freq_request(ood.freq_on); - - mutex_unlock(&ood.mutex); - - return count; -} - -static ssize_t show_freq_off(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%lu\n", ood.freq_off); -} - -static ssize_t store_freq_off(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - int ret; - unsigned long freq; - - ret = sscanf(buf, "%lu", &freq); - if (ret != 1) - return -EINVAL; - - freq = sgxfreq_get_freq_floor(freq); - - mutex_lock(&ood.mutex); - - ood.freq_off = freq; - if (!ood.sgx_clk_on) - sgxfreq_set_freq_request(ood.freq_off); - - mutex_unlock(&ood.mutex); - - return count; -} -static DEVICE_ATTR(freq_on, 0644, show_freq_on, store_freq_on); -static DEVICE_ATTR(freq_off, 0644, show_freq_off, store_freq_off); - -static struct attribute *onoff_attributes[] = { - &dev_attr_freq_on.attr, - &dev_attr_freq_off.attr, - NULL -}; - -static struct attribute_group onoff_attr_group = { - .attrs = onoff_attributes, - .name = "onoff", -}; - -/************************ end sysfs interface ************************/ - -int onoff_init(void) -{ - int ret; - - mutex_init(&ood.mutex); - - ret = sgxfreq_register_governor(&onoff_gov); - if (ret) - return ret; - - ood.freq_off = sgxfreq_get_freq_min(); - ood.freq_on = sgxfreq_get_freq_max(); - - return 0; -} - -int onoff_deinit(void) -{ - return 0; -} - -static int onoff_start(struct sgxfreq_sgx_data *data) -{ - int ret; - - ood.sgx_clk_on = data->clk_on; - - ret = sysfs_create_group(sgxfreq_kobj, &onoff_attr_group); - if (ret) - return ret; - - if (ood.sgx_clk_on) - sgxfreq_set_freq_request(ood.freq_on); - else - sgxfreq_set_freq_request(ood.freq_off); - - return 0; -} - -static void onoff_stop(void) -{ - sysfs_remove_group(sgxfreq_kobj, &onoff_attr_group); -} - -static void onoff_sgx_clk_on(void) -{ - mutex_lock(&ood.mutex); - - ood.sgx_clk_on = true; - sgxfreq_set_freq_request(ood.freq_on); - - mutex_unlock(&ood.mutex); -} - -static void onoff_sgx_clk_off(void) -{ - mutex_lock(&ood.mutex); - - ood.sgx_clk_on = false; - sgxfreq_set_freq_request(ood.freq_off); - - mutex_unlock(&ood.mutex); -} - |