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Wed, 23 Feb 2022 06:56:36 -0800 (PST) From: Michal Simek To: u-boot@lists.denx.de, git@xilinx.com Cc: Angus Ainslie , Kunihiko Hayashi , Marek Vasut , Simon Glass Subject: [PATCH] usb: dwc3: Add support for usb3-phy PHY configuration Date: Wed, 23 Feb 2022 15:56:35 +0100 Message-Id: <7911a4b784c1a534631a1409569622f494b316bb.1645628193.git.michal.simek@xilinx.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean When usb3-phy label is found, PHY driver is called and serdes line is initialized. This is preparation for serdes/psgtr driver to configure GT lines based on description in DT. Signed-off-by: Michal Simek Reviewed-by: Bin Meng --- drivers/usb/dwc3/dwc3-generic.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 01bd0ca190e3..b1e019b5b91a 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -409,6 +409,17 @@ static int dwc3_glue_probe(struct udevice *dev) struct udevice *child = NULL; int index = 0; int ret; + struct phy phy; + + ret = generic_phy_get_by_name(dev, "usb3-phy", &phy); + if (!ret) { + ret = generic_phy_init(&phy); + if (ret) + return ret; + } else if (ret != -ENOENT) { + debug("could not get phy (err %d)\n", ret); + return ret; + } glue->regs = dev_read_addr(dev); @@ -420,6 +431,12 @@ static int dwc3_glue_probe(struct udevice *dev) if (ret) return ret; + if (phy.dev) { + ret = generic_phy_power_on(&phy); + if (ret) + return ret; + } + ret = device_find_first_child(dev, &child); if (ret) return ret;