[PATCH 4.4 027/137] net: jme: fix suspend/resume on JMC260

From: Greg Kroah-Hartman
Date: Sun Apr 17 2016 - 22:36:25 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Diego Viola <diego.viola@xxxxxxxxx>

[ Upstream commit ee50c130c82175eaa0820c96b6d3763928af2241 ]

The JMC260 network card fails to suspend/resume because the call to
jme_start_irq() was too early, moving the call to jme_start_irq() after
the call to jme_reset_link() makes it work.

Prior this change suspend/resume would fail unless /sys/power/pm_async=0
was explicitly specified.

Relevant bug report: https://bugzilla.kernel.org/show_bug.cgi?id=112351

Signed-off-by: Diego Viola <diego.viola@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/jme.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -3312,13 +3312,14 @@ jme_resume(struct device *dev)
jme_reset_phy_processor(jme);
jme_phy_calibration(jme);
jme_phy_setEA(jme);
- jme_start_irq(jme);
netif_device_attach(netdev);

atomic_inc(&jme->link_changing);

jme_reset_link(jme);

+ jme_start_irq(jme);
+
return 0;
}