diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-5.4/0017-v5.8-phy-add-driver-for-Qualcomm-IPQ40xx-USB-PHY.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-5.4/0017-v5.8-phy-add-driver-for-Qualcomm-IPQ40xx-USB-PHY.patch | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/target/linux/ipq40xx/patches-5.4/0017-v5.8-phy-add-driver-for-Qualcomm-IPQ40xx-USB-PHY.patch b/target/linux/ipq40xx/patches-5.4/0017-v5.8-phy-add-driver-for-Qualcomm-IPQ40xx-USB-PHY.patch new file mode 100644 index 0000000000..ad09a9f250 --- /dev/null +++ b/target/linux/ipq40xx/patches-5.4/0017-v5.8-phy-add-driver-for-Qualcomm-IPQ40xx-USB-PHY.patch @@ -0,0 +1,197 @@ +From 3c9d8f6c03a2cda1849ec3c84f82ec030d1f49ef Mon Sep 17 00:00:00 2001 +From: Robert Marko <robert.marko@sartura.hr> +Date: Sun, 3 May 2020 22:18:22 +0200 +Subject: [PATCH] phy: add driver for Qualcomm IPQ40xx USB PHY + +Add a driver to setup the USB PHY-s on Qualcom m IPQ40xx series SoCs. +The driver sets up HS and SS phys. + +Signed-off-by: John Crispin <john@phrozen.org> +Signed-off-by: Robert Marko <robert.marko@sartura.hr> +Cc: Luka Perkov <luka.perkov@sartura.hr> +Link: https://lore.kernel.org/r/20200503201823.531757-1-robert.marko@sartura.hr +Signed-off-by: Vinod Koul <vkoul@kernel.org> +--- + drivers/phy/qualcomm/Kconfig | 7 + + drivers/phy/qualcomm/Makefile | 1 + + drivers/phy/qualcomm/phy-qcom-ipq4019-usb.c | 148 ++++++++++++++++++++ + 3 files changed, 156 insertions(+) + create mode 100644 drivers/phy/qualcomm/phy-qcom-ipq4019-usb.c + +--- a/drivers/phy/qualcomm/Kconfig ++++ b/drivers/phy/qualcomm/Kconfig +@@ -18,6 +18,13 @@ config PHY_QCOM_APQ8064_SATA + depends on OF + select GENERIC_PHY + ++config PHY_QCOM_IPQ4019_USB ++ tristate "Qualcomm IPQ4019 USB PHY driver" ++ depends on OF && (ARCH_QCOM || COMPILE_TEST) ++ select GENERIC_PHY ++ help ++ Support for the USB PHY-s on Qualcomm IPQ40xx SoC-s. ++ + config PHY_QCOM_IPQ806X_SATA + tristate "Qualcomm IPQ806x SATA SerDes/PHY driver" + depends on ARCH_QCOM +--- a/drivers/phy/qualcomm/Makefile ++++ b/drivers/phy/qualcomm/Makefile +@@ -1,6 +1,7 @@ + # SPDX-License-Identifier: GPL-2.0 + obj-$(CONFIG_PHY_ATH79_USB) += phy-ath79-usb.o + obj-$(CONFIG_PHY_QCOM_APQ8064_SATA) += phy-qcom-apq8064-sata.o ++obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o + obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o + obj-$(CONFIG_PHY_QCOM_PCIE2) += phy-qcom-pcie2.o + obj-$(CONFIG_PHY_QCOM_QMP) += phy-qcom-qmp.o +--- /dev/null ++++ b/drivers/phy/qualcomm/phy-qcom-ipq4019-usb.c +@@ -0,0 +1,148 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* ++ * Copyright (C) 2018 John Crispin <john@phrozen.org> ++ * ++ * Based on code from ++ * Allwinner Technology Co., Ltd. <www.allwinnertech.com> ++ * ++ */ ++ ++#include <linux/delay.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/mutex.h> ++#include <linux/of_platform.h> ++#include <linux/of_device.h> ++#include <linux/phy/phy.h> ++#include <linux/platform_device.h> ++#include <linux/reset.h> ++ ++struct ipq4019_usb_phy { ++ struct device *dev; ++ struct phy *phy; ++ void __iomem *base; ++ struct reset_control *por_rst; ++ struct reset_control *srif_rst; ++}; ++ ++static int ipq4019_ss_phy_power_off(struct phy *_phy) ++{ ++ struct ipq4019_usb_phy *phy = phy_get_drvdata(_phy); ++ ++ reset_control_assert(phy->por_rst); ++ msleep(10); ++ ++ return 0; ++} ++ ++static int ipq4019_ss_phy_power_on(struct phy *_phy) ++{ ++ struct ipq4019_usb_phy *phy = phy_get_drvdata(_phy); ++ ++ ipq4019_ss_phy_power_off(_phy); ++ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static struct phy_ops ipq4019_usb_ss_phy_ops = { ++ .power_on = ipq4019_ss_phy_power_on, ++ .power_off = ipq4019_ss_phy_power_off, ++}; ++ ++static int ipq4019_hs_phy_power_off(struct phy *_phy) ++{ ++ struct ipq4019_usb_phy *phy = phy_get_drvdata(_phy); ++ ++ reset_control_assert(phy->por_rst); ++ msleep(10); ++ ++ reset_control_assert(phy->srif_rst); ++ msleep(10); ++ ++ return 0; ++} ++ ++static int ipq4019_hs_phy_power_on(struct phy *_phy) ++{ ++ struct ipq4019_usb_phy *phy = phy_get_drvdata(_phy); ++ ++ ipq4019_hs_phy_power_off(_phy); ++ ++ reset_control_deassert(phy->srif_rst); ++ msleep(10); ++ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static struct phy_ops ipq4019_usb_hs_phy_ops = { ++ .power_on = ipq4019_hs_phy_power_on, ++ .power_off = ipq4019_hs_phy_power_off, ++}; ++ ++static const struct of_device_id ipq4019_usb_phy_of_match[] = { ++ { .compatible = "qcom,usb-hs-ipq4019-phy", .data = &ipq4019_usb_hs_phy_ops}, ++ { .compatible = "qcom,usb-ss-ipq4019-phy", .data = &ipq4019_usb_ss_phy_ops}, ++ { }, ++}; ++MODULE_DEVICE_TABLE(of, ipq4019_usb_phy_of_match); ++ ++static int ipq4019_usb_phy_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct resource *res; ++ struct phy_provider *phy_provider; ++ struct ipq4019_usb_phy *phy; ++ ++ phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; ++ ++ phy->dev = &pdev->dev; ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy->base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(phy->base)) { ++ dev_err(dev, "failed to remap register memory\n"); ++ return PTR_ERR(phy->base); ++ } ++ ++ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); ++ if (IS_ERR(phy->por_rst)) { ++ if (PTR_ERR(phy->por_rst) != -EPROBE_DEFER) ++ dev_err(dev, "POR reset is missing\n"); ++ return PTR_ERR(phy->por_rst); ++ } ++ ++ phy->srif_rst = devm_reset_control_get_optional(phy->dev, "srif_rst"); ++ if (IS_ERR(phy->srif_rst)) ++ return PTR_ERR(phy->srif_rst); ++ ++ phy->phy = devm_phy_create(dev, NULL, of_device_get_match_data(dev)); ++ if (IS_ERR(phy->phy)) { ++ dev_err(dev, "failed to create PHY\n"); ++ return PTR_ERR(phy->phy); ++ } ++ phy_set_drvdata(phy->phy, phy); ++ ++ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); ++ ++ return PTR_ERR_OR_ZERO(phy_provider); ++} ++ ++static struct platform_driver ipq4019_usb_phy_driver = { ++ .probe = ipq4019_usb_phy_probe, ++ .driver = { ++ .of_match_table = ipq4019_usb_phy_of_match, ++ .name = "ipq4019-usb-phy", ++ } ++}; ++module_platform_driver(ipq4019_usb_phy_driver); ++ ++MODULE_DESCRIPTION("QCOM/IPQ4019 USB phy driver"); ++MODULE_AUTHOR("John Crispin <john@phrozen.org>"); ++MODULE_LICENSE("GPL v2"); |