[PATCH] clk/samsung: exynos-audss: Replace syscore PM with platform device PM

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Exynos AUDSS clock driver has beem already converted to platform driver, so
remove the dependency on the syscore ops - the last remaining non-platform
driver feature. Platform device's system sleep PM provides all needed
infrastructure for replacing syscore-based PM, so do it now.

Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
 drivers/clk/samsung/clk-exynos-audss.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c
index 17e68a724945..cb7df358a27d 100644
--- a/drivers/clk/samsung/clk-exynos-audss.c
+++ b/drivers/clk/samsung/clk-exynos-audss.c
@@ -44,7 +44,7 @@
 	{ ASS_CLK_GATE, 0 },
 };
 
-static int exynos_audss_clk_suspend(void)
+static int exynos_audss_clk_suspend(struct device *dev)
 {
 	int i;
 
@@ -54,18 +54,15 @@ static int exynos_audss_clk_suspend(void)
 	return 0;
 }
 
-static void exynos_audss_clk_resume(void)
+static int exynos_audss_clk_resume(struct device *dev)
 {
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(reg_save); i++)
 		writel(reg_save[i][1], reg_base + reg_save[i][0]);
-}
 
-static struct syscore_ops exynos_audss_clk_syscore_ops = {
-	.suspend	= exynos_audss_clk_suspend,
-	.resume		= exynos_audss_clk_resume,
-};
+	return 0;
+}
 #endif /* CONFIG_PM_SLEEP */
 
 struct exynos_audss_clk_drvdata {
@@ -251,9 +248,6 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 		goto unregister;
 	}
 
-#ifdef CONFIG_PM_SLEEP
-	register_syscore_ops(&exynos_audss_clk_syscore_ops);
-#endif
 	return 0;
 
 unregister:
@@ -267,10 +261,6 @@ static int exynos_audss_clk_probe(struct platform_device *pdev)
 
 static int exynos_audss_clk_remove(struct platform_device *pdev)
 {
-#ifdef CONFIG_PM_SLEEP
-	unregister_syscore_ops(&exynos_audss_clk_syscore_ops);
-#endif
-
 	of_clk_del_provider(pdev->dev.of_node);
 
 	exynos_audss_clk_teardown();
@@ -281,10 +271,16 @@ static int exynos_audss_clk_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct dev_pm_ops exynos_audss_clk_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(exynos_audss_clk_suspend,
+				     exynos_audss_clk_resume)
+};
+
 static struct platform_driver exynos_audss_clk_driver = {
 	.driver	= {
 		.name = "exynos-audss-clk",
 		.of_match_table = exynos_audss_clk_of_match,
+		.pm = &exynos_audss_clk_pm_ops,
 	},
 	.probe = exynos_audss_clk_probe,
 	.remove = exynos_audss_clk_remove,
-- 
1.9.1

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