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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.patch197
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");