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author | Anatolij Gustschin <agust@denx.de> | 2009-04-07 02:01:42 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2009-04-13 21:51:23 (GMT) |
commit | a8729eb302a5b5da8b0b4d29582c42648a2e0f12 (patch) | |
tree | 88af13216c6c7ae1b7a802e65996f6a0db447a4b /include | |
parent | 140bc92903287cff4545e358c1651e4b7312cbd3 (diff) | |
download | linux-fsl-qoriq-a8729eb302a5b5da8b0b4d29582c42648a2e0f12.tar.xz |
phylib: Allow early-out in phy_change
Marvell 88E1121R Dual PHY device can be hardware-configured
to use shared interrupt pin for both PHY ports. For such
PHY configurations using shared PHY interrupt phy_interrupt()
handler will also schedule a work for PHY port which didn't
cause an interrupt.
This patch adds a possibility for PHY drivers to provide
did_interrupt() function which reports if the PHY (or a PHY
port in a multi-PHY device) generated an interrupt. This
function is called in phy_change() as phy_change() shouldn't
proceed if it is invoked for a PHY which didn't cause an
interrupt. So check for interrupt originator in phy_change()
to allow early-out.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/phy.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 32cf14a..97e40cb 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -388,6 +388,12 @@ struct phy_driver { /* Enables or disables interrupts */ int (*config_intr)(struct phy_device *phydev); + /* + * Checks if the PHY generated an interrupt. + * For multi-PHY devices with shared PHY interrupt pin + */ + int (*did_interrupt)(struct phy_device *phydev); + /* Clears up any memory if needed */ void (*remove)(struct phy_device *phydev); |