From patchwork Mon Mar 30 09:27:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 244522 List-Id: U-Boot discussion From: narmstrong at baylibre.com (Neil Armstrong) Date: Mon, 30 Mar 2020 11:27:23 +0200 Subject: [PATCH 01/10] generic-phy: add generic_phy_get_by_node() In-Reply-To: <20200330092732.7198-1-narmstrong@baylibre.com> References: <20200330092732.7198-1-narmstrong@baylibre.com> Message-ID: <20200330092732.7198-2-narmstrong@baylibre.com> Add generic_phy_get_by_node() to get a PHY phandle from a node instead of a udevice. Signed-off-by: Neil Armstrong --- drivers/phy/phy-uclass.c | 17 ++++++++++++----- include/generic-phy.h | 27 +++++++++++++++++++++++++++ 2 files changed, 39 insertions(+), 5 deletions(-) diff --git a/drivers/phy/phy-uclass.c b/drivers/phy/phy-uclass.c index e201a90c8c..de2c3d2b8e 100644 --- a/drivers/phy/phy-uclass.c +++ b/drivers/phy/phy-uclass.c @@ -31,20 +31,20 @@ static int generic_phy_xlate_offs_flags(struct phy *phy, return 0; } -int generic_phy_get_by_index(struct udevice *dev, int index, - struct phy *phy) +int generic_phy_get_by_node(ofnode node, int index, struct phy *phy) { struct ofnode_phandle_args args; struct phy_ops *ops; struct udevice *phydev; int i, ret; - debug("%s(dev=%p, index=%d, phy=%p)\n", __func__, dev, index, phy); + debug("%s(node=%s, index=%d, phy=%p)\n", + __func__, ofnode_get_name(node), index, phy); assert(phy); phy->dev = NULL; - ret = dev_read_phandle_with_args(dev, "phys", "#phy-cells", 0, index, - &args); + ret = ofnode_parse_phandle_with_args(node, "phys", "#phy-cells", 0, + index, &args); if (ret) { debug("%s: dev_read_phandle_with_args failed: err=%d\n", __func__, ret); @@ -88,6 +88,12 @@ int generic_phy_get_by_index(struct udevice *dev, int index, err: return ret; +} + +int generic_phy_get_by_index(struct udevice *dev, int index, + struct phy *phy) +{ + return generic_phy_get_by_node(dev_ofnode(dev), index, phy); } int generic_phy_get_by_name(struct udevice *dev, const char *phy_name, diff --git a/include/generic-phy.h b/include/generic-phy.h index 95caf58341..5873ffb2e0 100644 --- a/include/generic-phy.h +++ b/include/generic-phy.h @@ -193,6 +193,33 @@ int generic_phy_power_off(struct phy *phy); int generic_phy_get_by_index(struct udevice *user, int index, struct phy *phy); +/** + * generic_phy_get_by_node() - Get a PHY device by integer index on ofnode + * + * @node: the device node + * @index: The index in the list of available PHYs + * @phy: A pointer to the PHY port + * + * This looks up a PHY device for a client device based on its ofnode and on + * its position in the list of the possible PHYs. + * + * example: + * usb1: usb_otg_ss at xxx { + * compatible = "xxx"; + * reg = ; + * . + * . + * phys = <&usb2_phy>, <&usb3_phy>; + * . + * . + * }; + * the USB2 phy can be accessed by passing index '0' and the USB3 phy can + * be accessed by passing index '1' + * + * @return 0 if OK, or a negative error code + */ +int generic_phy_get_by_node(ofnode node, int index, struct phy *phy); + /** * generic_phy_get_by_name() - Get a PHY device by its name. *