From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: peppe.cavallaro@st.com, alexandre.torgue@st.com,
joabreu@synopsys.com, davem@davemloft.net, kuba@kernel.org
Cc: netdev@vger.kernel.org, linux-imx@nxp.com
Subject: [PATCH V1 net-next 2/3] net: stmmac: add platform level clocks management
Date: Tue, 23 Feb 2021 18:48:17 +0800 [thread overview]
Message-ID: <20210223104818.1933-3-qiangqing.zhang@nxp.com> (raw)
In-Reply-To: <20210223104818.1933-1-qiangqing.zhang@nxp.com>
This patch intends to add platform level clocks management. Some
platforms may have their own special clocks, they also need to be
managed dynamically. If you want to manage such clocks, please implement
clks_enable callback.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 ++++++++++
include/linux/stmmac.h | 1 +
2 files changed, 11 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 35a79c00a477..3f12faa224aa 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -126,9 +126,19 @@ static int stmmac_bus_clks_enable(struct stmmac_priv *priv, bool enabled)
clk_disable_unprepare(priv->plat->stmmac_clk);
return ret;
}
+ if (priv->plat->clks_enable) {
+ ret = priv->plat->clks_enable(priv->plat->bsp_priv, enabled);
+ if (ret) {
+ clk_disable_unprepare(priv->plat->stmmac_clk);
+ clk_disable_unprepare(priv->plat->pclk);
+ return ret;
+ }
+ }
} else {
clk_disable_unprepare(priv->plat->stmmac_clk);
clk_disable_unprepare(priv->plat->pclk);
+ if (priv->plat->clks_enable)
+ priv->plat->clks_enable(priv->plat->bsp_priv, enabled);
}
return ret;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index a302982de2d7..f2486a0ab5f1 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -183,6 +183,7 @@ struct plat_stmmacenet_data {
int (*init)(struct platform_device *pdev, void *priv);
void (*exit)(struct platform_device *pdev, void *priv);
struct mac_device_info *(*setup)(void *priv);
+ int (*clks_enable)(void *priv, bool enabled);
void *bsp_priv;
struct clk *stmmac_clk;
struct clk *pclk;
--
2.17.1
next prev parent reply other threads:[~2021-02-23 10:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 10:48 [PATCH V1 net-next 0/3] net: stmmac: implement clocks Joakim Zhang
2021-02-23 10:48 ` [PATCH V1 net-next 1/3] net: stmmac: add clocks management for gmac driver Joakim Zhang
2021-02-23 16:46 ` Jakub Kicinski
2021-02-24 1:46 ` Joakim Zhang
2021-02-23 10:48 ` Joakim Zhang [this message]
2021-02-23 10:48 ` [PATCH V1 net-next 3/3] net: stmmac: add platform level clocks management for i.MX Joakim Zhang
2021-02-23 16:45 ` [PATCH V1 net-next 0/3] net: stmmac: implement clocks Jakub Kicinski
2021-02-24 1:45 ` Joakim Zhang
2021-02-24 1:54 ` Jakub Kicinski
2021-02-24 2:13 ` Joakim Zhang
2021-02-24 2:34 ` Jakub Kicinski
2021-02-24 2:47 ` Joakim Zhang
2021-02-24 3:54 ` Florian Fainelli
2021-02-25 1:42 ` Joakim Zhang
2021-02-24 9:03 ` Joakim Zhang
2021-02-24 13:01 ` Andrew Lunn
2021-02-25 2:15 ` Joakim Zhang
[not found] ` <DB8PR04MB6795FAE4C1736AABDCA75FA7E69E9@DB8PR04MB6795.eurprd04.prod.outlook.com>
2021-02-25 2:33 ` Andrew Lunn
2021-02-25 11:48 ` Joakim Zhang
2021-02-25 13:14 ` Andrew Lunn
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