From 26a2ad8a5418525d21f06083e65b10c932633209 Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Wed, 14 Sep 2016 23:13:18 +0800 Subject: [PATCH] net: ethernet: mediatek: add controlling power domain the ethernet belongs to introduce power domain control which the digital circuit of the ethernet belongs to inside the flow of hardware initialization and deinitialization which helps the entire ethernet hardware block could restart cleanly and completely as being back to the initial state when the whole machine reboot. Signed-off-by: Sean Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 1272316a7d7b..01f59115132c 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -1417,6 +1418,9 @@ static int __init mtk_hw_init(struct mtk_eth *eth) { int i; + pm_runtime_enable(eth->dev); + pm_runtime_get_sync(eth->dev); + clk_prepare_enable(eth->clks[MTK_CLK_ETHIF]); clk_prepare_enable(eth->clks[MTK_CLK_ESW]); clk_prepare_enable(eth->clks[MTK_CLK_GP1]); @@ -1484,6 +1488,9 @@ static int mtk_hw_deinit(struct mtk_eth *eth) clk_disable_unprepare(eth->clks[MTK_CLK_ESW]); clk_disable_unprepare(eth->clks[MTK_CLK_ETHIF]); + pm_runtime_put_sync(eth->dev); + pm_runtime_disable(eth->dev); + return 0; } -- 2.20.1