[media] s5p-mfc: Added support for clk_prepare
Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -41,15 +41,29 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
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pm->clock_gate = clk_get(&dev->plat_dev->dev, MFC_GATE_CLK_NAME);
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if (IS_ERR(pm->clock_gate)) {
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mfc_err("Failed to get clock-gating control\n");
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ret = -ENOENT;
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ret = PTR_ERR(pm->clock_gate);
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goto err_g_ip_clk;
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}
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ret = clk_prepare(pm->clock_gate);
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if (ret) {
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mfc_err("Failed to preapre clock-gating control\n");
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goto err_p_ip_clk;
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}
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pm->clock = clk_get(&dev->plat_dev->dev, MFC_CLKNAME);
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if (IS_ERR(pm->clock)) {
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mfc_err("Failed to get MFC clock\n");
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ret = -ENOENT;
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ret = PTR_ERR(pm->clock);
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goto err_g_ip_clk_2;
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}
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ret = clk_prepare(pm->clock);
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if (ret) {
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mfc_err("Failed to prepare MFC clock\n");
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goto err_p_ip_clk_2;
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}
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atomic_set(&pm->power, 0);
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#ifdef CONFIG_PM_RUNTIME
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pm->device = &dev->plat_dev->dev;
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@ -59,7 +73,11 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
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atomic_set(&clk_ref, 0);
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#endif
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return 0;
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err_p_ip_clk_2:
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clk_put(pm->clock);
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err_g_ip_clk_2:
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clk_unprepare(pm->clock_gate);
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err_p_ip_clk:
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clk_put(pm->clock_gate);
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err_g_ip_clk:
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return ret;
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@ -67,7 +85,9 @@ err_g_ip_clk:
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void s5p_mfc_final_pm(struct s5p_mfc_dev *dev)
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{
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clk_unprepare(pm->clock_gate);
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clk_put(pm->clock_gate);
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clk_unprepare(pm->clock);
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clk_put(pm->clock);
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#ifdef CONFIG_PM_RUNTIME
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pm_runtime_disable(pm->device);
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