Thread (8 messages) 8 messages, 3 authors, 2019-06-06
STALE2581d
Revisions (3)
  1. v1 [diff vs current]
  2. resend [diff vs current]
  3. v2 current

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

From: Biao Huang <hidden>
Date: 2019-06-03 01:58:43
Also in: linux-arm-kernel, linux-mediatek, lkml
Subsystem: networking drivers, stmmac ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

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

Signed-off-by: Biao Huang <redacted>
---
 .../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
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