[v2, PATCH 1/4] net: stmmac: dwmac-mediatek: enable Ethernet power domain

Biao Huang
2019-06-03T01:58:03Z

add Ethernet power on/off operations in init/exit flow.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
---
.../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index 126b66b..b84269e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
@@ -9,6 +9,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_net.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/stmmac.h>

@@ -298,6 +299,9 @@ static int mediatek_dwmac_init(struct platform_device *pdev, void *priv)
return ret;
}

+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
return 0;
}

@@ -307,6 +311,9 @@ static void mediatek_dwmac_exit(struct platform_device *pdev, void *priv)
const struct mediatek_dwmac_variant *variant = plat->variant;

clk_bulk_disable_unprepare(variant->num_clks, plat->clks);
+
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
}

static int mediatek_dwmac_probe(struct platform_device *pdev)
--
1.7.9.5