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net: stmmac: disable & enable clock on suspend resume

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

Change-Id: I65e80188e2cce0967b5bce8f0f5f55c842f40aa0
Acked-by: Nagarjuna Chaganti <nchagant@qti.qualcomm.com>
Signed-off-by: Suraj Jaiswal <jsuraj@codeaurora.org>
This commit is contained in:
Suraj Jaiswal 2021-03-17 22:51:58 +05:30 • committed by Gerrit - the friendly Code Review server
commit 8f1ad5f7a2
1 changed files with 28 additions and 0 deletions
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28
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
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@ -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