diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c index 4ef041bdf6a1..9b7be996d07b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c @@ -155,18 +155,14 @@ static int stm32mp1_clk_prepare(struct stm32_dwmac *dwmac, bool prepare) ret = clk_prepare_enable(dwmac->syscfg_clk); if (ret) return ret; - - if (dwmac->clk_eth_ck) { - ret = clk_prepare_enable(dwmac->clk_eth_ck); - if (ret) { - clk_disable_unprepare(dwmac->syscfg_clk); - return ret; - } + ret = clk_prepare_enable(dwmac->clk_eth_ck); + if (ret) { + clk_disable_unprepare(dwmac->syscfg_clk); + return ret; } } else { clk_disable_unprepare(dwmac->syscfg_clk); - if (dwmac->clk_eth_ck) - clk_disable_unprepare(dwmac->clk_eth_ck); + clk_disable_unprepare(dwmac->clk_eth_ck); } return ret; } @@ -175,7 +171,7 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) { struct stm32_dwmac *dwmac = plat_dat->bsp_priv; u32 reg = dwmac->mode_reg; - int val, ret; + int val; switch (plat_dat->interface) { case PHY_INTERFACE_MODE_MII: @@ -211,8 +207,8 @@ static int stm32mp1_set_mode(struct plat_stmmacenet_data *plat_dat) } /* Need to update PMCCLRR (clear register) */ - ret = regmap_write(dwmac->regmap, reg + SYSCFG_PMCCLRR_OFFSET, - dwmac->ops->syscfg_eth_mask); + regmap_write(dwmac->regmap, reg + SYSCFG_PMCCLRR_OFFSET, + dwmac->ops->syscfg_eth_mask); /* Update PMCSETR (set register) */ return regmap_update_bits(dwmac->regmap, reg, @@ -320,12 +316,10 @@ static int stm32mp1_parse_data(struct stm32_dwmac *dwmac, return PTR_ERR(dwmac->clk_ethstp); } - /* Clock for sysconfig */ + /* Optional Clock for sysconfig */ dwmac->syscfg_clk = devm_clk_get(dev, "syscfg-clk"); - if (IS_ERR(dwmac->syscfg_clk)) { - dev_err(dev, "No syscfg clock provided...\n"); - return PTR_ERR(dwmac->syscfg_clk); - } + if (IS_ERR(dwmac->syscfg_clk)) + dwmac->syscfg_clk = NULL; /* Get IRQ information early to have an ability to ask for deferred * probe if needed before we went too far with resource allocation. @@ -437,8 +431,7 @@ static int stm32mp1_suspend(struct stm32_dwmac *dwmac) clk_disable_unprepare(dwmac->clk_tx); clk_disable_unprepare(dwmac->syscfg_clk); - if (dwmac->clk_eth_ck) - clk_disable_unprepare(dwmac->clk_eth_ck); + clk_disable_unprepare(dwmac->clk_eth_ck); return ret; } |