phy: stih41x-usb: Remove usb phy driver and dt binding

 documentation.

This phy is only used on STiH415/6 based silicon, and support for
these SoC's is being removed from the kernel.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index d67492b..1b07ab1 100644 (file)
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -428,14 +428,6 @@ config PHY_STIH407_USB
          Enable this support to enable the picoPHY device used by USB2
          and USB3 controllers on STMicroelectronics STiH407 SoC families.
 
-config PHY_STIH41X_USB
-       tristate "STMicroelectronics USB2 PHY driver for STiH41x series"
-       depends on ARCH_STI
-       select GENERIC_PHY
-       help
-         Enable this to support the USB transceiver that is part of
-         STMicroelectronics STiH41x SoC series.
-
 config PHY_QCOM_UFS
        tristate "Qualcomm UFS PHY driver"
        depends on OF && ARCH_QCOM

diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 566f036..65eb2f4 100644 (file)
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -49,7 +49,6 @@ obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY)  += phy-spear1310-miphy.o
 obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY)   += phy-spear1340-miphy.o
 obj-$(CONFIG_PHY_XGENE)                        += phy-xgene.o
 obj-$(CONFIG_PHY_STIH407_USB)          += phy-stih407-usb.o
-obj-$(CONFIG_PHY_STIH41X_USB)          += phy-stih41x-usb.o
 obj-$(CONFIG_PHY_QCOM_UFS)     += phy-qcom-ufs.o
 obj-$(CONFIG_PHY_QCOM_UFS)     += phy-qcom-ufs-qmp-20nm.o
 obj-$(CONFIG_PHY_QCOM_UFS)     += phy-qcom-ufs-qmp-14nm.o

diff --git a/drivers/phy/phy-stih41x-usb.c b/drivers/phy/phy-stih41x-usb.c
deleted file mode 100644 (file)
index 0ac7463..0000000
--- a/drivers/phy/phy-stih41x-usb.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C) 2014 STMicroelectronics
- *
- * STMicroelectronics PHY driver for STiH41x USB.
- *
- * Author: Maxime Coquelin <maxime.coquelin@st.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2, as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/clk.h>
-#include <linux/phy/phy.h>
-#include <linux/regmap.h>
-#include <linux/mfd/syscon.h>
-
-#define SYSCFG332  0x80
-#define SYSCFG2520 0x820
-
-/**
- * struct stih41x_usb_cfg - SoC specific PHY register mapping
- * @syscfg: Offset in syscfg registers bank
- * @cfg_mask: Bits mask for PHY configuration
- * @cfg: Static configuration value for PHY
- * @oscok: Notify the PHY oscillator clock is ready
- *        Setting this bit enable the PHY
- */
-struct stih41x_usb_cfg {
-       u32 syscfg;
-       u32 cfg_mask;
-       u32 cfg;
-       u32 oscok;
-};
-
-/**
- * struct stih41x_usb_phy - Private data for the PHY
- * @dev: device for this controller
- * @regmap: Syscfg registers bank in which PHY is configured
- * @cfg: SoC specific PHY register mapping
- * @clk: Oscillator used by the PHY
- */
-struct stih41x_usb_phy {
-       struct device *dev;
-       struct regmap *regmap;
-       const struct stih41x_usb_cfg *cfg;
-       struct clk *clk;
-};
-
-static struct stih41x_usb_cfg stih415_usb_phy_cfg = {
-       .syscfg = SYSCFG332,
-       .cfg_mask = 0x3f,
-       .cfg = 0x38,
-       .oscok = BIT(6),
-};
-
-static struct stih41x_usb_cfg stih416_usb_phy_cfg = {
-       .syscfg = SYSCFG2520,
-       .cfg_mask = 0x33f,
-       .cfg = 0x238,
-       .oscok = BIT(6),
-};
-
-static int stih41x_usb_phy_init(struct phy *phy)
-{
-       struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
-
-       return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
-                          phy_dev->cfg->cfg_mask, phy_dev->cfg->cfg);
-}
-
-static int stih41x_usb_phy_power_on(struct phy *phy)
-{
-       struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
-       int ret;
-
-       ret = clk_prepare_enable(phy_dev->clk);
-       if (ret) {
-               dev_err(phy_dev->dev, "Failed to enable osc_phy clock\n");
-               return ret;
-       }
-
-       ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
-                                phy_dev->cfg->oscok, phy_dev->cfg->oscok);
-       if (ret)
-               clk_disable_unprepare(phy_dev->clk);
-
-       return ret;
-}
-
-static int stih41x_usb_phy_power_off(struct phy *phy)
-{
-       struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
-       int ret;
-
-       ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
-                       phy_dev->cfg->oscok, 0);
-       if (ret) {
-               dev_err(phy_dev->dev, "Failed to clear oscok bit\n");
-               return ret;
-       }
-
-       clk_disable_unprepare(phy_dev->clk);
-
-       return 0;
-}
-
-static const struct phy_ops stih41x_usb_phy_ops = {
-       .init           = stih41x_usb_phy_init,
-       .power_on       = stih41x_usb_phy_power_on,
-       .power_off      = stih41x_usb_phy_power_off,
-       .owner          = THIS_MODULE,
-};
-
-static const struct of_device_id stih41x_usb_phy_of_match[];
-
-static int stih41x_usb_phy_probe(struct platform_device *pdev)
-{
-       struct device_node *np = pdev->dev.of_node;
-       const struct of_device_id *match;
-       struct stih41x_usb_phy *phy_dev;
-       struct device *dev = &pdev->dev;
-       struct phy_provider *phy_provider;
-       struct phy *phy;
-
-       phy_dev = devm_kzalloc(dev, sizeof(*phy_dev), GFP_KERNEL);
-       if (!phy_dev)
-               return -ENOMEM;
-
-       match = of_match_device(stih41x_usb_phy_of_match, &pdev->dev);
-       if (!match)
-               return -ENODEV;
-
-       phy_dev->cfg = match->data;
-
-       phy_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
-       if (IS_ERR(phy_dev->regmap)) {
-               dev_err(dev, "No syscfg phandle specified\n");
-               return PTR_ERR(phy_dev->regmap);
-       }
-
-       phy_dev->clk = devm_clk_get(dev, "osc_phy");
-       if (IS_ERR(phy_dev->clk)) {
-               dev_err(dev, "osc_phy clk not found\n");
-               return PTR_ERR(phy_dev->clk);
-       }
-
-       phy = devm_phy_create(dev, NULL, &stih41x_usb_phy_ops);
-
-       if (IS_ERR(phy)) {
-               dev_err(dev, "failed to create phy\n");
-               return PTR_ERR(phy);
-       }
-
-       phy_dev->dev = dev;
-
-       phy_set_drvdata(phy, phy_dev);
-
-       phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
-       return PTR_ERR_OR_ZERO(phy_provider);
-}
-
-static const struct of_device_id stih41x_usb_phy_of_match[] = {
-       { .compatible = "st,stih415-usb-phy", .data = &stih415_usb_phy_cfg },
-       { .compatible = "st,stih416-usb-phy", .data = &stih416_usb_phy_cfg },
-       { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, stih41x_usb_phy_of_match);
-
-static struct platform_driver stih41x_usb_phy_driver = {
-       .probe  = stih41x_usb_phy_probe,
-       .driver = {
-               .name   = "stih41x-usb-phy",
-               .of_match_table = stih41x_usb_phy_of_match,
-       }
-};
-module_platform_driver(stih41x_usb_phy_driver);
-
-MODULE_AUTHOR("Maxime Coquelin <maxime.coquelin@st.com>");
-MODULE_DESCRIPTION("STMicroelectronics USB PHY driver for STiH41x series");
-MODULE_LICENSE("GPL v2");