diff options
Diffstat (limited to 'drivers/media/platform/s5p-mfc/s5p_mfc_pm.c')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc_pm.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c index 9e238528141..68bde3ddb99 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c @@ -21,6 +21,8 @@ #include "s5p_mfc_pm.h" #define MFC_GATE_CLK_NAME "mfc" +#define MFC_SCLK_NAME "sclk-mfc" +#define MFC_SCLK_RATE (200 * 1000000) #define CLK_DEBUG @@ -50,6 +52,20 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) goto err_p_ip_clk; } + if (dev->variant->version != MFC_VERSION_V6) { + pm->clock = clk_get(&dev->plat_dev->dev, MFC_SCLK_NAME); + if (IS_ERR(pm->clock)) { + mfc_info("Failed to get MFC special clock control\n"); + } else { + clk_set_rate(pm->clock, MFC_SCLK_RATE); + ret = clk_prepare_enable(pm->clock); + if (ret) { + mfc_err("Failed to enable MFC special clock\n"); + goto err_s_clk; + } + } + } + atomic_set(&pm->power, 0); #ifdef CONFIG_PM_RUNTIME pm->device = &dev->plat_dev->dev; @@ -59,6 +75,9 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev) atomic_set(&clk_ref, 0); #endif return 0; + +err_s_clk: + clk_put(pm->clock); err_p_ip_clk: clk_put(pm->clock_gate); err_g_ip_clk: @@ -67,6 +86,11 @@ err_g_ip_clk: void s5p_mfc_final_pm(struct s5p_mfc_dev *dev) { + if (dev->variant->version != MFC_VERSION_V6 && + pm->clock) { + clk_disable_unprepare(pm->clock); + clk_put(pm->clock); + } clk_unprepare(pm->clock_gate); clk_put(pm->clock_gate); #ifdef CONFIG_PM_RUNTIME |