summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/s5p-mfc/s5p_mfc_pm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/s5p-mfc/s5p_mfc_pm.c')
-rw-r--r--drivers/media/video/s5p-mfc/s5p_mfc_pm.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_pm.c b/drivers/media/video/s5p-mfc/s5p_mfc_pm.c
deleted file mode 100644
index 738a607..0000000
--- a/drivers/media/video/s5p-mfc/s5p_mfc_pm.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * linux/drivers/media/video/s5p-mfc/s5p_mfc_pm.c
- *
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#ifdef CONFIG_PM_RUNTIME
-#include <linux/pm_runtime.h>
-#endif
-#include "s5p_mfc_common.h"
-#include "s5p_mfc_debug.h"
-#include "s5p_mfc_pm.h"
-
-#define MFC_CLKNAME "sclk_mfc"
-#define MFC_GATE_CLK_NAME "mfc"
-
-#define CLK_DEBUG
-
-static struct s5p_mfc_pm *pm;
-static struct s5p_mfc_dev *p_dev;
-
-#ifdef CLK_DEBUG
-atomic_t clk_ref;
-#endif
-
-int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
-{
- int ret = 0;
-
- pm = &dev->pm;
- p_dev = dev;
- pm->clock_gate = clk_get(&dev->plat_dev->dev, MFC_GATE_CLK_NAME);
- if (IS_ERR(pm->clock_gate)) {
- mfc_err("Failed to get clock-gating control\n");
- ret = PTR_ERR(pm->clock_gate);
- goto err_g_ip_clk;
- }
-
- ret = clk_prepare(pm->clock_gate);
- if (ret) {
- mfc_err("Failed to preapre clock-gating control\n");
- goto err_p_ip_clk;
- }
-
- pm->clock = clk_get(&dev->plat_dev->dev, MFC_CLKNAME);
- if (IS_ERR(pm->clock)) {
- mfc_err("Failed to get MFC clock\n");
- ret = PTR_ERR(pm->clock);
- goto err_g_ip_clk_2;
- }
-
- ret = clk_prepare(pm->clock);
- if (ret) {
- mfc_err("Failed to prepare MFC clock\n");
- goto err_p_ip_clk_2;
- }
-
- atomic_set(&pm->power, 0);
-#ifdef CONFIG_PM_RUNTIME
- pm->device = &dev->plat_dev->dev;
- pm_runtime_enable(pm->device);
-#endif
-#ifdef CLK_DEBUG
- atomic_set(&clk_ref, 0);
-#endif
- return 0;
-err_p_ip_clk_2:
- clk_put(pm->clock);
-err_g_ip_clk_2:
- clk_unprepare(pm->clock_gate);
-err_p_ip_clk:
- clk_put(pm->clock_gate);
-err_g_ip_clk:
- return ret;
-}
-
-void s5p_mfc_final_pm(struct s5p_mfc_dev *dev)
-{
- clk_unprepare(pm->clock_gate);
- clk_put(pm->clock_gate);
- clk_unprepare(pm->clock);
- clk_put(pm->clock);
-#ifdef CONFIG_PM_RUNTIME
- pm_runtime_disable(pm->device);
-#endif
-}
-
-int s5p_mfc_clock_on(void)
-{
- int ret;
-#ifdef CLK_DEBUG
- atomic_inc(&clk_ref);
- mfc_debug(3, "+ %d", atomic_read(&clk_ref));
-#endif
- ret = clk_enable(pm->clock_gate);
- return ret;
-}
-
-void s5p_mfc_clock_off(void)
-{
-#ifdef CLK_DEBUG
- atomic_dec(&clk_ref);
- mfc_debug(3, "- %d", atomic_read(&clk_ref));
-#endif
- clk_disable(pm->clock_gate);
-}
-
-int s5p_mfc_power_on(void)
-{
-#ifdef CONFIG_PM_RUNTIME
- return pm_runtime_get_sync(pm->device);
-#else
- atomic_set(&pm->power, 1);
- return 0;
-#endif
-}
-
-int s5p_mfc_power_off(void)
-{
-#ifdef CONFIG_PM_RUNTIME
- return pm_runtime_put_sync(pm->device);
-#else
- atomic_set(&pm->power, 0);
- return 0;
-#endif
-}
-
-
OpenPOWER on IntegriCloud