Add support for suspend and resume to the Broadcom iProc mdio
mux driver.
Signed-off-by: Arun Parameswaran <arun.parameswaran@xxxxxxxxxxxx>
---
drivers/net/phy/mdio-mux-bcm-iproc.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c
index 51d1003..d89dce0 100644
--- a/drivers/net/phy/mdio-mux-bcm-iproc.c
+++ b/drivers/net/phy/mdio-mux-bcm-iproc.c
@@ -290,6 +290,33 @@ static int mdio_mux_iproc_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM_SLEEP
+static int mdio_mux_iproc_suspend(struct device *dev)
+{
+ struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
+
+ if (md->core_clk)
+ clk_disable_unprepare(md->core_clk);
+
+ return 0;
+}
+
+static int mdio_mux_iproc_resume(struct device *dev)
+{
+ struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
+
+ if (md->core_clk)
+ clk_prepare_enable(md->core_clk);
+
+ mdio_mux_iproc_config(md);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mdio_mux_iproc_pm_ops,
+ mdio_mux_iproc_suspend, mdio_mux_iproc_resume);
+
static const struct of_device_id mdio_mux_iproc_match[] = {
{
.compatible = "brcm,mdio-mux-iproc",
@@ -302,6 +329,7 @@ static int mdio_mux_iproc_remove(struct platform_device *pdev)
.driver = {
.name = "mdio-mux-iproc",
.of_match_table = mdio_mux_iproc_match,
+ .pm = &mdio_mux_iproc_pm_ops,
},
.probe = mdio_mux_iproc_probe,
.remove = mdio_mux_iproc_remove,
--
1.9.1
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