diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-07-21 18:24:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-23 01:50:31 +0200 |
| commit | 9514fe7a2352e35ff571467afba24ab904a1befe (patch) | |
| tree | d05b846b6f2bfaa70fc81bcee563b946fc5369c2 | |
| parent | tun: Support software transmit time stamping. (diff) | |
| download | linux-9514fe7a2352e35ff571467afba24ab904a1befe.tar.xz linux-9514fe7a2352e35ff571467afba24ab904a1befe.zip | |
fec: Do not enable/disable optional clocks unconditionally
clk_enet_out and clk_ptp are optional clocks, so we should not enable/disable
them unconditionally.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index d3ad5ea711d3..beaa5762e041 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -2105,8 +2105,10 @@ fec_probe(struct platform_device *pdev) clk_prepare_enable(fep->clk_ahb); clk_prepare_enable(fep->clk_ipg); - clk_prepare_enable(fep->clk_enet_out); - clk_prepare_enable(fep->clk_ptp); + if (fep->clk_enet_out) + clk_prepare_enable(fep->clk_enet_out); + if (fep->clk_ptp) + clk_prepare_enable(fep->clk_ptp); fep->reg_phy = devm_regulator_get(&pdev->dev, "phy"); if (!IS_ERR(fep->reg_phy)) { @@ -2179,8 +2181,10 @@ failed_init: failed_regulator: clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_ipg); - clk_disable_unprepare(fep->clk_enet_out); - clk_disable_unprepare(fep->clk_ptp); + if (fep->clk_enet_out) + clk_disable_unprepare(fep->clk_enet_out); + if (fep->clk_ptp) + clk_disable_unprepare(fep->clk_ptp); failed_clk: failed_ioremap: free_netdev(ndev); @@ -2206,10 +2210,12 @@ fec_drv_remove(struct platform_device *pdev) } if (fep->reg_phy) regulator_disable(fep->reg_phy); - clk_disable_unprepare(fep->clk_ptp); + if (fep->clk_ptp) + clk_disable_unprepare(fep->clk_ptp); if (fep->ptp_clock) ptp_clock_unregister(fep->ptp_clock); - clk_disable_unprepare(fep->clk_enet_out); + if (fep->clk_enet_out) + clk_disable_unprepare(fep->clk_enet_out); clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_ipg); free_netdev(ndev); @@ -2228,7 +2234,8 @@ fec_suspend(struct device *dev) fec_stop(ndev); netif_device_detach(ndev); } - clk_disable_unprepare(fep->clk_enet_out); + if (fep->clk_enet_out) + clk_disable_unprepare(fep->clk_enet_out); clk_disable_unprepare(fep->clk_ahb); clk_disable_unprepare(fep->clk_ipg); @@ -2251,7 +2258,8 @@ fec_resume(struct device *dev) return ret; } - clk_prepare_enable(fep->clk_enet_out); + if (fep->clk_enet_out) + clk_prepare_enable(fep->clk_enet_out); clk_prepare_enable(fep->clk_ahb); clk_prepare_enable(fep->clk_ipg); if (netif_running(ndev)) { |