diff options
| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2020-09-10 23:52:29 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-11 17:36:28 -0700 |
| commit | 5760d9acbe9514eec68eb70821d6fa5764f57042 (patch) | |
| tree | a3fb3b986190197b03738c329439317dbba26617 /drivers/net/ethernet/ti | |
| parent | c047dc1d260f2593035d63747d616c3512f9d6b6 (diff) | |
net: ethernet: ti: cpsw_new: fix suspend/resume
Add missed suspend/resume callbacks to properly restore networking after
suspend/resume cycle.
Fixes: ed3525eda4c4 ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_new.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index 8ed78577cded..15672d0a4de6 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -17,6 +17,7 @@ #include <linux/phy.h> #include <linux/phy/phy.h> #include <linux/delay.h> +#include <linux/pinctrl/consumer.h> #include <linux/pm_runtime.h> #include <linux/gpio/consumer.h> #include <linux/of.h> @@ -2070,9 +2071,61 @@ static int cpsw_remove(struct platform_device *pdev) return 0; } +static int __maybe_unused cpsw_suspend(struct device *dev) +{ + struct cpsw_common *cpsw = dev_get_drvdata(dev); + int i; + + rtnl_lock(); + + for (i = 0; i < cpsw->data.slaves; i++) { + struct net_device *ndev = cpsw->slaves[i].ndev; + + if (!(ndev && netif_running(ndev))) + continue; + + cpsw_ndo_stop(ndev); + } + + rtnl_unlock(); + + /* Select sleep pin state */ + pinctrl_pm_select_sleep_state(dev); + + return 0; +} + +static int __maybe_unused cpsw_resume(struct device *dev) +{ + struct cpsw_common *cpsw = dev_get_drvdata(dev); + int i; + + /* Select default pin state */ + pinctrl_pm_select_default_state(dev); + + /* shut up ASSERT_RTNL() warning in netif_set_real_num_tx/rx_queues */ + rtnl_lock(); + + for (i = 0; i < cpsw->data.slaves; i++) { + struct net_device *ndev = cpsw->slaves[i].ndev; + + if (!(ndev && netif_running(ndev))) + continue; + + cpsw_ndo_open(ndev); + } + + rtnl_unlock(); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume); + static struct platform_driver cpsw_driver = { .driver = { .name = "cpsw-switch", + .pm = &cpsw_pm_ops, .of_match_table = cpsw_of_mtable, }, .probe = cpsw_probe, |