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net: phy: marvell: optimize logic for page changing during init

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Instead of remembering if the page was changed, just compare the current
page to the saved one. This is easier and has the advantage to save a
register write if the page was already restored.

Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Uwe Kleine-König 2016-11-10 15:03:01 +01:00 • committed by David S. Miller
parent 849dcce3fe
commit b5718b5aef
1 changed files with 2 additions and 4 deletions
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6
drivers/net/phy/marvell.c
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@ -361,7 +361,7 @@ static int m88e1111_config_aneg(struct phy_device *phydev)
static int marvell_of_reg_init(struct phy_device *phydev)
{
const __be32 *paddr;
int len, i, saved_page, current_page, page_changed, ret;
int len, i, saved_page, current_page, ret;
if (!phydev->mdio.dev.of_node)
return 0;
@ -374,7 +374,6 @@ static int marvell_of_reg_init(struct phy_device *phydev)
saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
if (saved_page < 0)
return saved_page;
page_changed = 0;
current_page = saved_page;
ret = 0;
@ -388,7 +387,6 @@ static int marvell_of_reg_init(struct phy_device *phydev)
if (reg_page != current_page) {
current_page = reg_page;
page_changed = 1;
ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
if (ret < 0)
goto err;
@ -411,7 +409,7 @@ static int marvell_of_reg_init(struct phy_device *phydev)
}
err:
if (page_changed) {
if (current_page != saved_page) {
i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
if (ret == 0)
ret = i;