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Commit 8f1ad5f7 authored by Suraj Jaiswal's avatar Suraj Jaiswal Committed by Gerrit - the friendly Code Review server
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net: stmmac: disable & enable clock on suspend resume 



disable all eth clocks on suspend and enable them on resume.

Change-Id: I65e80188e2cce0967b5bce8f0f5f55c842f40aa0
Acked-by: default avatarNagarjuna Chaganti <nchagant@qti.qualcomm.com>
Signed-off-by: default avatarSuraj Jaiswal <jsuraj@codeaurora.org>
parent 336fdc58

drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c

+28 −0
Original line number Diff line number Diff line
@@ -899,6 +899,8 @@ static void ethqos_pps_irq_config(struct qcom_ethqos *ethqos) 


static void qcom_ethqos_phy_suspend_clks(struct qcom_ethqos *ethqos)

{

	struct stmmac_priv *priv = qcom_ethqos_get_priv(ethqos);



	ETHQOSINFO("Enter\n");



	if (phy_intr_en)
@@ -908,6 +910,18 @@ static void qcom_ethqos_phy_suspend_clks(struct qcom_ethqos *ethqos) 


	ethqos_update_rgmii_clk_and_bus_cfg(ethqos, 0);



	if (priv->plat->stmmac_clk)

		clk_disable_unprepare(priv->plat->stmmac_clk);



	if (priv->plat->pclk)

		clk_disable_unprepare(priv->plat->pclk);



	if (priv->plat->clk_ptp_ref)

		clk_disable_unprepare(priv->plat->clk_ptp_ref);



	if (ethqos->rgmii_clk)

		clk_disable_unprepare(ethqos->rgmii_clk);



	ETHQOSINFO("Exit\n");

}
@@ -933,8 +947,22 @@ inline bool qcom_ethqos_is_phy_link_up(struct qcom_ethqos *ethqos) 


static void qcom_ethqos_phy_resume_clks(struct qcom_ethqos *ethqos)

{

	struct stmmac_priv *priv = qcom_ethqos_get_priv(ethqos);



	ETHQOSINFO("Enter\n");



	if (priv->plat->stmmac_clk)

		clk_prepare_enable(priv->plat->stmmac_clk);



	if (priv->plat->pclk)

		clk_prepare_enable(priv->plat->pclk);



	if (priv->plat->clk_ptp_ref)

		clk_prepare_enable(priv->plat->clk_ptp_ref);



	if (ethqos->rgmii_clk)

		clk_prepare_enable(ethqos->rgmii_clk);



	if (qcom_ethqos_is_phy_link_up(ethqos))

		ethqos_update_rgmii_clk_and_bus_cfg(ethqos, ethqos->speed);

	else