diff options
| -rw-r--r-- | drivers/phy/cadence/phy-cadence-torrent.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c index d471a47b4323..89e647bff99f 100644 --- a/drivers/phy/cadence/phy-cadence-torrent.c +++ b/drivers/phy/cadence/phy-cadence-torrent.c @@ -3095,6 +3095,62 @@ static struct cdns_torrent_vals sgmii_qsgmii_xcvr_diag_ln_vals = { .num_regs = ARRAY_SIZE(sgmii_qsgmii_xcvr_diag_ln_regs), }; +static int cdns_torrent_phy_suspend_noirq(struct device *dev) +{ + struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(dev); + int i; + + reset_control_assert(cdns_phy->phy_rst); + reset_control_assert(cdns_phy->apb_rst); + for (i = 0; i < cdns_phy->nsubnodes; i++) + reset_control_assert(cdns_phy->phys[i].lnk_rst); + + if (cdns_phy->already_configured) + cdns_phy->already_configured = 0; + else { + clk_disable_unprepare(cdns_phy->clk1); + clk_disable_unprepare(cdns_phy->clk); + } + + return 0; +} + +static int cdns_torrent_phy_resume_noirq(struct device *dev) +{ + struct cdns_torrent_phy *cdns_phy = dev_get_drvdata(dev); + int node = cdns_phy->nsubnodes; + int ret, i; + + ret = cdns_torrent_clk(cdns_phy); + if (ret) + return ret; + + /* Enable APB */ + reset_control_deassert(cdns_phy->apb_rst); + + if (cdns_phy->nsubnodes > 1) { + ret = cdns_torrent_phy_configure_multilink(cdns_phy); + if (ret) + goto put_lnk_rst; + } + + return 0; + +put_lnk_rst: + for (i = 0; i < node; i++) + reset_control_assert(cdns_phy->phys[i].lnk_rst); + reset_control_assert(cdns_phy->apb_rst); + + clk_disable_unprepare(cdns_phy->clk1); + clk_disable_unprepare(cdns_phy->clk); + + return ret; +} + +static DEFINE_NOIRQ_DEV_PM_OPS(cdns_torrent_phy_pm_ops, + cdns_torrent_phy_suspend_noirq, + cdns_torrent_phy_resume_noirq); + /* USB and DP link configuration */ static struct cdns_reg_pairs usb_dp_link_cmn_regs[] = { {0x0002, PHY_PLL_CFG}, @@ -5332,6 +5388,7 @@ static struct platform_driver cdns_torrent_phy_driver = { .driver = { .name = "cdns-torrent-phy", .of_match_table = cdns_torrent_phy_of_match, + .pm = pm_sleep_ptr(&cdns_torrent_phy_pm_ops), } }; module_platform_driver(cdns_torrent_phy_driver); |