PM / clock_ops: Provide default runtime ops to users
Most users of PM clocks do the extact same things in the runtime
suspend/resume callbacks. Provide them USE_PM_CLK_RUNTIME_OPS so
as to avoid/remove boilerplate code.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c
index 7fdd017..8abea66 100644
--- a/drivers/base/power/clock_ops.c
+++ b/drivers/base/power/clock_ops.c
@@ -15,6 +15,7 @@
#include <linux/clkdev.h>
#include <linux/slab.h>
#include <linux/err.h>
+#include <linux/pm_runtime.h>
#ifdef CONFIG_PM
@@ -367,6 +368,43 @@
return 0;
}
+int pm_clk_runtime_suspend(struct device *dev)
+{
+ int ret;
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ ret = pm_generic_runtime_suspend(dev);
+ if (ret) {
+ dev_err(dev, "failed to suspend device\n");
+ return ret;
+ }
+
+ ret = pm_clk_suspend(dev);
+ if (ret) {
+ dev_err(dev, "failed to suspend clock\n");
+ pm_generic_runtime_resume(dev);
+ return ret;
+ }
+
+ return 0;
+}
+
+int pm_clk_runtime_resume(struct device *dev)
+{
+ int ret;
+
+ dev_dbg(dev, "%s\n", __func__);
+
+ ret = pm_clk_resume(dev);
+ if (ret) {
+ dev_err(dev, "failed to resume clock\n");
+ return ret;
+ }
+
+ return pm_generic_runtime_resume(dev);
+}
+
#else /* !CONFIG_PM */
/**