Messages in this thread Patch in this message | | | From | Caesar Wang <> | Subject | [PATCH v4 3/6] net: stmmac: dwmac-rk: add pd_gmac support for rk3399 | Date | Fri, 2 Sep 2016 01:50:01 +0800 |
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From: David Wu <david.wu@rock-chips.com>
Add the gmac power domain support for rk3399, in order to save more power consumption.
Signed-off-by: David Wu <david.wu@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> ---
Changes in v4: None Changes in v3: None Changes in v2: - fixes the build error on next kernel.
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 e2ba6c4..3740a44 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" @@ -883,11 +884,19 @@ 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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