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| author | Joachim Eastwood <manabian@gmail.com> | 2016-11-04 18:54:09 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-06 22:00:15 -0500 |
| commit | b89cbfb01a2855b5c4e2f9121195439ac210d65b (patch) | |
| tree | a7d6f362b442ad9552a8b45090cfc375efa0ea4b /drivers/net/ethernet/stmicro | |
| parent | 06a6e829bdaf4df5616db2d47978e10e88f1dc32 (diff) | |
| download | linux-b89cbfb01a2855b5c4e2f9121195439ac210d65b.tar.gz linux-b89cbfb01a2855b5c4e2f9121195439ac210d65b.tar.bz2 linux-b89cbfb01a2855b5c4e2f9121195439ac210d65b.zip | |
stmmac: dwmac-sti: move clk_prepare_enable out of init and add error handling
Add clock error handling to probe and in the process move clock enabling
out of sti_dwmac_init() to make this easier.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c index 269c7a55ab1d..b71888a307ff 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c @@ -237,8 +237,6 @@ static int sti_dwmac_init(struct platform_device *pdev, void *priv) u32 reg = dwmac->ctrl_reg; u32 val; - clk_prepare_enable(dwmac->clk); - if (dwmac->gmac_en) regmap_update_bits(regmap, reg, EN_MASK, EN); @@ -348,11 +346,23 @@ static int sti_dwmac_probe(struct platform_device *pdev) plat_dat->bsp_priv = dwmac; plat_dat->fix_mac_speed = data->fix_retime_src; - ret = sti_dwmac_init(pdev, plat_dat->bsp_priv); + ret = clk_prepare_enable(dwmac->clk); if (ret) return ret; - return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + ret = sti_dwmac_init(pdev, plat_dat->bsp_priv); + if (ret) + goto disable_clk; + + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + if (ret) + goto disable_clk; + + return 0; + +disable_clk: + clk_disable_unprepare(dwmac->clk); + return ret; } static int sti_dwmac_remove(struct platform_device *pdev) @@ -381,6 +391,7 @@ static int sti_dwmac_resume(struct device *dev) struct sti_dwmac *dwmac = get_stmmac_bsp_priv(dev); struct platform_device *pdev = to_platform_device(dev); + clk_prepare_enable(dwmac->clk); sti_dwmac_init(pdev, dwmac); return stmmac_resume(dev); |