0db070a424
- misleading indentation
- strict prototypes [1]
[1]
int foo(void) {...}
instead of
int foo() {...}
drivers: usb: Fix misleading indentation
162 lines
4 KiB
C
Executable file
162 lines
4 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2021 Samsung Electronics Inc. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*/
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#include <errno.h>
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/* TODO: separate cal-if and pmu-if dependent stuff */
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#include <soc/samsung/cal-if.h>
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#include <soc/samsung/exynos-pd.h>
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#include <linux/of.h>
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#if IS_ENABLED(CONFIG_EXYNOS_PMU)
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#include <soc/samsung/exynos-pmu.h>
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#endif
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#if IS_ENABLED(CONFIG_EXYNOS_PMU_IF)
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#include <soc/samsung/exynos-pmu-if.h>
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#endif
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#include <gpex_utils.h>
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#include <gpexbe_devicetree.h>
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#include <gpexbe_pm.h>
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static struct exynos_pm_domain *exynos_pm_domain;
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static unsigned int gpu_pmu_status_reg_offset;
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static unsigned int gpu_pmu_status_local_pwr_mask;
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static struct exynos_pm_domain *gpu_get_pm_domain(const char *g3d_genpd_name)
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{
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struct platform_device *pdev = NULL;
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struct device_node *np = NULL;
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struct exynos_pm_domain *pd_temp, *pd = NULL;
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for_each_compatible_node (np, NULL, "samsung,exynos-pd") {
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if (!of_device_is_available(np))
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continue;
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pdev = of_find_device_by_node(np);
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pd_temp = (struct exynos_pm_domain *)platform_get_drvdata(pdev);
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if (!strcmp(g3d_genpd_name, (const char *)(pd_temp->genpd.name))) {
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pd = pd_temp;
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break;
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}
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}
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if (pd == NULL)
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GPU_LOG(MALI_EXYNOS_ERROR, "%s: g3d pm_domain is null\n", __func__);
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return pd;
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}
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int gpexbe_pm_get_status(void)
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{
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int ret = 0;
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unsigned int val = 0xf;
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exynos_pmu_read(gpu_pmu_status_reg_offset, &val);
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ret = ((val & gpu_pmu_status_local_pwr_mask) == gpu_pmu_status_local_pwr_mask) ? 1 : 0;
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return ret;
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}
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struct exynos_pm_domain *gpexbe_pm_get_exynos_pm_domain(void)
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{
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return exynos_pm_domain;
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}
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void gpexbe_pm_access_lock(void)
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{
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//DEBUG_ASSERT(exynos_pm_domain)
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mutex_lock(&exynos_pm_domain->access_lock);
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}
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void gpexbe_pm_access_unlock(void)
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{
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//DEBUG_ASSERT(exynos_pm_domain)
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mutex_unlock(&exynos_pm_domain->access_lock);
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}
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static int gpexbe_pm_pd_control(int target_status)
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{
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int status;
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gpexbe_pm_access_lock();
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status = cal_pd_status(exynos_pm_domain->cal_pdid);
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if (status == target_status) {
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gpexbe_pm_access_unlock();
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GPU_LOG(MALI_EXYNOS_DEBUG,
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"%s: status checking : Already gpu inter frame power %d\n", __func__,
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target_status);
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return 0;
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}
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if (cal_pd_control(exynos_pm_domain->cal_pdid, target_status) != 0) {
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gpexbe_pm_access_unlock();
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GPU_LOG(MALI_EXYNOS_ERROR, "%s: failed to gpu inter frame power %d\n", __func__,
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target_status);
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return -1;
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}
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status = cal_pd_status(exynos_pm_domain->cal_pdid);
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if (status != target_status) {
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gpexbe_pm_access_unlock();
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GPU_LOG(MALI_EXYNOS_ERROR, "%s: status error : gpu inter frame power %d\n",
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__func__, target_status);
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return -1;
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}
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gpexbe_pm_access_unlock();
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GPU_LOG_DETAILED(MALI_EXYNOS_DEBUG, LSI_IFPM_POWER_ON, 0u, 0u,
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"gpu inter frame power on\n");
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return 0;
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}
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int gpexbe_pm_pd_control_up(void)
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{
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return gpexbe_pm_pd_control(1);
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}
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int gpexbe_pm_pd_control_down(void)
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{
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return gpexbe_pm_pd_control(0);
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}
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int gpexbe_pm_init(void)
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{
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const char *g3d_genpd_name;
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g3d_genpd_name = gpexbe_devicetree_get_str(g3d_genpd_name);
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exynos_pm_domain = gpu_get_pm_domain(g3d_genpd_name);
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gpu_pmu_status_reg_offset = gpexbe_devicetree_get_int(gpu_pmu_status_reg_offset);
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gpu_pmu_status_local_pwr_mask = gpexbe_devicetree_get_int(gpu_pmu_status_local_pwr_mask);
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if (!exynos_pm_domain)
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return -EINVAL;
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return 0;
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}
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void gpexbe_pm_term(void)
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{
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exynos_pm_domain = NULL;
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}
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