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phy: phy-rockchip-inno-usb2: support standalone phy nodes

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New Rockchip devices have the usb2 phy devices as standalone nodes
instead of children of the grf node.
Allow the driver to find the grf node from a phandle.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20211215210252.120923-5-pgwipeout@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Peter Geis 2021-12-15 16:02:48 -05:00 committed by Vinod Koul
parent 9c19c531dc
commit e6915e1acc
1 changed files with 12 additions and 5 deletions
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17
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
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@ -1073,12 +1073,19 @@ static int rockchip_usb2phy_probe(struct platform_device *pdev)
return -EINVAL;
}
if (!dev->parent || !dev->parent->of_node)
return -EINVAL;
if (!dev->parent || !dev->parent->of_node) {
rphy->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,usbgrf");
if (IS_ERR(rphy->grf)) {
dev_err(dev, "failed to locate usbgrf\n");
return PTR_ERR(rphy->grf);
}
}
rphy->grf = syscon_node_to_regmap(dev->parent->of_node);
if (IS_ERR(rphy->grf))
return PTR_ERR(rphy->grf);
else {
rphy->grf = syscon_node_to_regmap(dev->parent->of_node);
if (IS_ERR(rphy->grf))
return PTR_ERR(rphy->grf);
}
if (of_device_is_compatible(np, "rockchip,rv1108-usb2phy")) {
rphy->usbgrf =