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Date: Wed, 31 Aug 2016 14:13:46 +0800 From: Caesar Wang <wxt@...k-chips.com> To: Heiko Stuebner <heiko@...ech.de>, netdev@...r.kernel.org Cc: linux-rockchip@...ts.infradead.org, Brian Norris <briannorris@...omium.org>, Douglas Anderson <dianders@...omium.org>, dbasehore@...omium.org, David Wu <david.wu@...k-chips.com>, Caesar Wang <wxt@...k-chips.com>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...com>, linux-kernel@...r.kernel.org Subject: [RESEND PATCH 2/4] net: stmmac: dwmac-rk: add pd_gmac support for rk3399 From: David Wu <david.wu@...k-chips.com> Add the gmac power domain support for rk3399, in order to save more power consumption. Signed-off-by: David Wu <david.wu@...k-chips.com> Signed-off-by: Caesar Wang <wxt@...k-chips.com> --- drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 289e7a6..406573d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -30,6 +30,7 @@ #include <linux/delay.h> #include <linux/mfd/syscon.h> #include <linux/regmap.h> +#include <linux/pm_runtime.h> #include "stmmac_platform.h" @@ -659,11 +660,19 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv) if (ret) return ret; + pm_runtime_enable(dev); + pm_runtime_get_sync(dev); + return 0; } static void rk_gmac_powerdown(struct rk_priv_data *gmac) { + struct device *dev = &gmac->pdev->dev; + + pm_runtime_put_sync(dev); + pm_runtime_disable(dev); + phy_power_on(gmac, false); gmac_clk_enable(gmac, false); } -- 1.9.1
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