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

[Biao Huang]

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

Signed-off-by: Biao Huang <biao.hu...@mediatek.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c   |   18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c 
b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
index 126b66b..3c7a60f 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)
@@ -364,6 +371,15 @@ static int mediatek_dwmac_probe(struct platform_device 
*pdev)
        return 0;
 }
 
+static int mediatek_dwmac_remove(struct platform_device *pdev)
+{
+       int ret;
+
+       ret = stmmac_pltfr_remove(pdev);
+
+       return ret;
+}
+
 static const struct of_device_id mediatek_dwmac_match[] = {
        { .compatible = "mediatek,mt2712-gmac",
          .data = &mt2712_gmac_variant },
@@ -374,7 +390,7 @@ static int mediatek_dwmac_probe(struct platform_device 
*pdev)
 
 static struct platform_driver mediatek_dwmac_driver = {
        .probe  = mediatek_dwmac_probe,
-       .remove = stmmac_pltfr_remove,
+       .remove = mediatek_dwmac_remove,
        .driver = {
                .name           = "dwmac-mediatek",
                .pm             = &stmmac_pltfr_pm_ops,
-- 
1.7.9.5