lkml.org 
[lkml]   [2019]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.0 013/146] net: phy: meson-gxl: fix interrupt support
Date
5.0-stable review patch.  If anyone has any objections, please let me know.

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

From: Jerome Brunet <jbrunet@baylibre.com>

[ Upstream commit daa5c4d0167a308306525fd5ab9a5e18e21f4f74 ]

If an interrupt is already pending when the interrupt is enabled on the
GXL phy, no IRQ will ever be triggered.

The fix is simply to make sure pending IRQs are cleared before setting
up the irq mask.

Fixes: cf127ff20af1 ("net: phy: meson-gxl: add interrupt support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/phy/meson-gxl.c | 6 ++++++
1 file changed, 6 insertions(+)

--- a/drivers/net/phy/meson-gxl.c
+++ b/drivers/net/phy/meson-gxl.c
@@ -211,6 +211,7 @@ static int meson_gxl_ack_interrupt(struc
static int meson_gxl_config_intr(struct phy_device *phydev)
{
u16 val;
+ int ret;

if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
val = INTSRC_ANEG_PR
@@ -223,6 +224,11 @@ static int meson_gxl_config_intr(struct
val = 0;
}

+ /* Ack any pending IRQ */
+ ret = meson_gxl_ack_interrupt(phydev);
+ if (ret)
+ return ret;
+
return phy_write(phydev, INTSRC_MASK, val);
}


\
 
 \ /
  Last update: 2019-04-01 20:39    [W:0.479 / U:34.592 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site