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Subject[PATCH net-next] net: stmmac: dwmac-qcom-ethqos: add platform level clocks management
Date
Split clocks settings from init callback into clks_config callback,
which could support platform level clock management.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
---
.../stmicro/stmmac/dwmac-qcom-ethqos.c | 26 ++++++++++++++++---
1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 5c74b6279d69..8fea48e477e6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -447,6 +447,24 @@ static void ethqos_fix_mac_speed(void *priv, unsigned int speed)
ethqos_configure(ethqos);
}

+static int ethqos_clks_config(void *priv, bool enabled)
+{
+ struct qcom_ethqos *ethqos = priv;
+ int ret = 0;
+
+ if (enabled) {
+ ret = clk_prepare_enable(ethqos->rgmii_clk);
+ if (ret) {
+ dev_err(&ethqos->pdev->dev, "rgmii_clk enable failed\n");
+ return ret;
+ }
+ } else {
+ clk_disable_unprepare(ethqos->rgmii_clk);
+ }
+
+ return ret;
+}
+
static int qcom_ethqos_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -466,6 +484,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
return PTR_ERR(plat_dat);
}

+ plat_dat->clks_config = ethqos_clks_config;
+
ethqos = devm_kzalloc(&pdev->dev, sizeof(*ethqos), GFP_KERNEL);
if (!ethqos) {
ret = -ENOMEM;
@@ -489,7 +509,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
goto err_mem;
}

- ret = clk_prepare_enable(ethqos->rgmii_clk);
+ ret = ethqos_clks_config(ethqos, true);
if (ret)
goto err_mem;

@@ -512,7 +532,7 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
return ret;

err_clk:
- clk_disable_unprepare(ethqos->rgmii_clk);
+ ethqos_clks_config(ethqos, false);

err_mem:
stmmac_remove_config_dt(pdev, plat_dat);
@@ -530,7 +550,7 @@ static int qcom_ethqos_remove(struct platform_device *pdev)
return -ENODEV;

ret = stmmac_pltfr_remove(pdev);
- clk_disable_unprepare(ethqos->rgmii_clk);
+ ethqos_clks_config(ethqos, false);

return ret;
}
--
2.31.1
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