From e6915e1acca57bc4fdb61dccd5cc2e49f72ef743 Mon Sep 17 00:00:00 2001 From: Peter Geis Date: Wed, 15 Dec 2021 16:02:48 -0500 Subject: [PATCH] phy: phy-rockchip-inno-usb2: support standalone phy nodes 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 Tested-by: Michael Riesch Link: https://lore.kernel.org/r/20211215210252.120923-5-pgwipeout@gmail.com Signed-off-by: Vinod Koul --- drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c index fac390e1f8de..1cdd9ae0a230 100644 --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c @@ -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 = -- 2.11.0