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phy: cadence: Sierra: Fix PHY power_on sequence

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commit 5b4f5757f83be34d1428a1ffbb68d4a1966e9aae upstream.

Commit 44d30d6228 ("phy: cadence: Add driver for Sierra PHY")
de-asserts PHY_RESET even before the configurations are loaded in
phy_init(). However PHY_RESET should be de-asserted only after
all the configurations has been initialized, instead of de-asserting
in probe. Fix it here.

Fixes: 44d30d6228 ("phy: cadence: Add driver for Sierra PHY")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20210319124128.13308-2-kishon@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kishon Vijay Abraham I 2021-03-19 18:11:16 +05:30 committed by Greg Kroah-Hartman
parent 66c86eefa2
commit be6566144c
1 changed files with 6 additions and 1 deletions
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7
drivers/phy/cadence/phy-cadence-sierra.c
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@ -319,6 +319,12 @@ static int cdns_sierra_phy_on(struct phy *gphy)
u32 val;
int ret;
ret = reset_control_deassert(sp->phy_rst);
if (ret) {
dev_err(dev, "Failed to take the PHY out of reset\n");
return ret;
}
/* Take the PHY lane group out of reset */
ret = reset_control_deassert(ins->lnk_rst);
if (ret) {
@ -618,7 +624,6 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
pm_runtime_enable(dev);
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
reset_control_deassert(sp->phy_rst);
return PTR_ERR_OR_ZERO(phy_provider);
put_child: