[PATCH v2 21/24] net: stmmac: dwmac-imx: Discard Tx clock request
From: Serge Semin <hidden>
Date: 2021-02-08 14:14:06
Also in:
linux-arm-kernel, linux-devicetree, lkml
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
Since the Tx clock is now requested and enabled/disabled in the STMMAC DT-based platform config method, there is no need in duplicating the same procedures in the DW MAC iMX sub-driver. Signed-off-by: Serge Semin <redacted> --- .../net/ethernet/stmicro/stmmac/dwmac-imx.c | 21 +++++-------------- 1 file changed, 5 insertions(+), 16 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index 223f69da7e95..8b2c7f1ba745 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c@@ -40,7 +40,6 @@ struct imx_dwmac_ops { struct imx_priv_data { struct device *dev; - struct clk *clk_tx; struct clk *clk_mem; struct regmap *intf_regmap; u32 intf_reg_off;
@@ -104,12 +103,6 @@ static int imx_dwmac_init(struct platform_device *pdev, void *priv) return ret; } - ret = clk_prepare_enable(dwmac->clk_tx); - if (ret) { - dev_err(&pdev->dev, "tx clock enable failed\n"); - goto clk_tx_en_failed; - } - if (dwmac->ops->set_intf_mode) { ret = dwmac->ops->set_intf_mode(plat_dat); if (ret)
@@ -119,8 +112,6 @@ static int imx_dwmac_init(struct platform_device *pdev, void *priv) return 0; intf_mode_failed: - clk_disable_unprepare(dwmac->clk_tx); -clk_tx_en_failed: clk_disable_unprepare(dwmac->clk_mem); return ret; }
@@ -129,7 +120,6 @@ static void imx_dwmac_exit(struct platform_device *pdev, void *priv) { struct imx_priv_data *dwmac = priv; - clk_disable_unprepare(dwmac->clk_tx); clk_disable_unprepare(dwmac->clk_mem); }
@@ -162,7 +152,7 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed) return; } - err = clk_set_rate(dwmac->clk_tx, rate); + err = clk_set_rate(plat_dat->tx_clk, rate); if (err < 0) dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate); }
@@ -176,10 +166,9 @@ imx_dwmac_parse_dt(struct imx_priv_data *dwmac, struct device *dev) if (of_get_property(np, "snps,rmii_refclk_ext", NULL)) dwmac->rmii_refclk_ext = true; - dwmac->clk_tx = devm_clk_get(dev, "tx"); - if (IS_ERR(dwmac->clk_tx)) { - dev_err(dev, "failed to get tx clock\n"); - return PTR_ERR(dwmac->clk_tx); + if (!dwmac->plat_dat->tx_clk) { + dev_err(dev, "no tx clock found\n"); + return -EINVAL; } dwmac->clk_mem = NULL;
@@ -239,6 +228,7 @@ static int imx_dwmac_probe(struct platform_device *pdev) dwmac->ops = data; dwmac->dev = &pdev->dev; + dwmac->plat_dat = plat_dat; ret = imx_dwmac_parse_dt(dwmac, &pdev->dev); if (ret) {
@@ -251,7 +241,6 @@ static int imx_dwmac_probe(struct platform_device *pdev) plat_dat->exit = imx_dwmac_exit; plat_dat->fix_mac_speed = imx_dwmac_fix_speed; plat_dat->bsp_priv = dwmac; - dwmac->plat_dat = plat_dat; ret = imx_dwmac_init(pdev, dwmac); if (ret)
--
2.29.2