phy: rename struct omap_control_usb to struct omap_control_phy

Rename struct omap_control_usb to struct omap_control_phy since it can
be used to control PHY of USB, SATA and PCIE. Also move the driver and
include files under *phy* and made the corresponding changes in the users
of phy-omap-control.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>

drivers/phy/Kconfig

@@ -31,12 +31,22 @@ config PHY_MVEBU_SATA
 	depends on OF
 	select GENERIC_PHY
 
+config OMAP_CONTROL_PHY
+	tristate "OMAP CONTROL PHY Driver"
+	help
+	  Enable this to add support for the PHY part present in the control
+	  module. This driver has API to power on the USB2 PHY and to write to
+	  the mailbox. The mailbox is present only in omap4 and the register to
+	  power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an
+	  additional register to power on USB3 PHY/SATA PHY/PCIE PHY
+	  (PIPE3 PHY).
+
 config OMAP_USB2
 	tristate "OMAP USB2 PHY Driver"
 	depends on ARCH_OMAP2PLUS
 	depends on USB_PHY
 	select GENERIC_PHY
-	select OMAP_CONTROL_USB
+	select OMAP_CONTROL_PHY
 	help
 	  Enable this to support the transceiver that is part of SOC. This
 	  driver takes care of all the PHY functionality apart from comparator.
@@ -47,7 +57,7 @@ config TI_PIPE3
 	tristate "TI PIPE3 PHY Driver"
 	depends on ARCH_OMAP2PLUS || COMPILE_TEST
 	select GENERIC_PHY
-	select OMAP_CONTROL_USB
+	select OMAP_CONTROL_PHY
 	help
 	  Enable this to support the PIPE3 PHY that is part of TI SOCs. This
 	  driver takes care of all the PHY functionality apart from comparator.

drivers/phy/Makefile

@@ -7,6 +7,7 @@ obj-$(CONFIG_BCM_KONA_USB2_PHY)		+= phy-bcm-kona-usb2.o
 obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO)	+= phy-exynos-dp-video.o
 obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO)	+= phy-exynos-mipi-video.o
 obj-$(CONFIG_PHY_MVEBU_SATA)		+= phy-mvebu-sata.o
+obj-$(CONFIG_OMAP_CONTROL_PHY)		+= phy-omap-control.o
 obj-$(CONFIG_OMAP_USB2)			+= phy-omap-usb2.o
 obj-$(CONFIG_TI_PIPE3)			+= phy-ti-pipe3.o
 obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o

drivers/usb/phy/phy-omap-control.c → drivers/phy/phy-omap-control.c

@@ -1,5 +1,5 @@
 /*
- * omap-control-usb.c - The USB part of control module.
+ * omap-control-phy.c - The PHY part of control module.
  *
  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
  * This program is free software; you can redistribute it and/or modify
@@ -24,36 +24,36 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/clk.h>
-#include <linux/usb/omap_control_usb.h>
+#include <linux/phy/omap_control_phy.h>
 
 /**
- * omap_control_usb_phy_power - power on/off the phy using control module reg
+ * omap_control_phy_power - power on/off the phy using control module reg
  * @dev: the control module device
  * @on: 0 or 1, based on powering on or off the PHY
  */
-void omap_control_usb_phy_power(struct device *dev, int on)
+void omap_control_phy_power(struct device *dev, int on)
 {
 	u32 val;
 	unsigned long rate;
-	struct omap_control_usb	*control_usb;
+	struct omap_control_phy	*control_phy;
 
 	if (IS_ERR(dev) || !dev) {
 		pr_err("%s: invalid device\n", __func__);
 		return;
 	}
 
-	control_usb = dev_get_drvdata(dev);
-	if (!control_usb) {
-		dev_err(dev, "%s: invalid control usb device\n", __func__);
+	control_phy = dev_get_drvdata(dev);
+	if (!control_phy) {
+		dev_err(dev, "%s: invalid control phy device\n", __func__);
 		return;
 	}
 
-	if (control_usb->type == OMAP_CTRL_TYPE_OTGHS)
+	if (control_phy->type == OMAP_CTRL_TYPE_OTGHS)
 		return;
 
-	val = readl(control_usb->power);
+	val = readl(control_phy->power);
 
-	switch (control_usb->type) {
+	switch (control_phy->type) {
 	case OMAP_CTRL_TYPE_USB2:
 		if (on)
 			val &= ~OMAP_CTRL_DEV_PHY_PD;
@@ -62,19 +62,20 @@ void omap_control_usb_phy_power(struct device *dev, int on)
 		break;
 
 	case OMAP_CTRL_TYPE_PIPE3:
-		rate = clk_get_rate(control_usb->sys_clk);
+		rate = clk_get_rate(control_phy->sys_clk);
 		rate = rate/1000000;
 
 		if (on) {
-			val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK |
-					OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK);
-			val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON <<
-				OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
-			val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT;
+			val &= ~(OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
+				OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
+			val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON <<
+				OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
+			val |= rate <<
+				OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
 		} else {
-			val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK;
-			val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF <<
-				OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
+			val &= ~OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
+			val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF <<
+				OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
 		}
 		break;
 
@@ -100,66 +101,66 @@ void omap_control_usb_phy_power(struct device *dev, int on)
 		break;
 	default:
 		dev_err(dev, "%s: type %d not recognized\n",
-					__func__, control_usb->type);
+			__func__, control_phy->type);
 		break;
 	}
 
-	writel(val, control_usb->power);
+	writel(val, control_phy->power);
 }
-EXPORT_SYMBOL_GPL(omap_control_usb_phy_power);
+EXPORT_SYMBOL_GPL(omap_control_phy_power);
 
 /**
  * omap_control_usb_host_mode - set AVALID, VBUSVALID and ID pin in grounded
- * @ctrl_usb: struct omap_control_usb *
+ * @ctrl_phy: struct omap_control_phy *
  *
  * Writes to the mailbox register to notify the usb core that a usb
  * device has been connected.
  */
-static void omap_control_usb_host_mode(struct omap_control_usb *ctrl_usb)
+static void omap_control_usb_host_mode(struct omap_control_phy *ctrl_phy)
 {
 	u32 val;
 
-	val = readl(ctrl_usb->otghs_control);
+	val = readl(ctrl_phy->otghs_control);
 	val &= ~(OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND);
 	val |= OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID;
-	writel(val, ctrl_usb->otghs_control);
+	writel(val, ctrl_phy->otghs_control);
 }
 
 /**
  * omap_control_usb_device_mode - set AVALID, VBUSVALID and ID pin in high
  * impedance
- * @ctrl_usb: struct omap_control_usb *
+ * @ctrl_phy: struct omap_control_phy *
  *
  * Writes to the mailbox register to notify the usb core that it has been
  * connected to a usb host.
  */
-static void omap_control_usb_device_mode(struct omap_control_usb *ctrl_usb)
+static void omap_control_usb_device_mode(struct omap_control_phy *ctrl_phy)
 {
 	u32 val;
 
-	val = readl(ctrl_usb->otghs_control);
+	val = readl(ctrl_phy->otghs_control);
 	val &= ~OMAP_CTRL_DEV_SESSEND;
 	val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_AVALID |
 		OMAP_CTRL_DEV_VBUSVALID;
-	writel(val, ctrl_usb->otghs_control);
+	writel(val, ctrl_phy->otghs_control);
 }
 
 /**
  * omap_control_usb_set_sessionend - Enable SESSIONEND and IDIG to high
  * impedance
- * @ctrl_usb: struct omap_control_usb *
+ * @ctrl_phy: struct omap_control_phy *
  *
  * Writes to the mailbox register to notify the usb core it's now in
  * disconnected state.
  */
-static void omap_control_usb_set_sessionend(struct omap_control_usb *ctrl_usb)
+static void omap_control_usb_set_sessionend(struct omap_control_phy *ctrl_phy)
 {
 	u32 val;
 
-	val = readl(ctrl_usb->otghs_control);
+	val = readl(ctrl_phy->otghs_control);
 	val &= ~(OMAP_CTRL_DEV_AVALID | OMAP_CTRL_DEV_VBUSVALID);
 	val |= OMAP_CTRL_DEV_IDDIG | OMAP_CTRL_DEV_SESSEND;
-	writel(val, ctrl_usb->otghs_control);
+	writel(val, ctrl_phy->otghs_control);
 }
 
 /**
@@ -174,30 +175,30 @@ static void omap_control_usb_set_sessionend(struct omap_control_usb *ctrl_usb)
 void omap_control_usb_set_mode(struct device *dev,
 	enum omap_control_usb_mode mode)
 {
-	struct omap_control_usb	*ctrl_usb;
+	struct omap_control_phy	*ctrl_phy;
 
 	if (IS_ERR(dev) || !dev)
 		return;
 
-	ctrl_usb = dev_get_drvdata(dev);
+	ctrl_phy = dev_get_drvdata(dev);
 
-	if (!ctrl_usb) {
-		dev_err(dev, "Invalid control usb device\n");
+	if (!ctrl_phy) {
+		dev_err(dev, "Invalid control phy device\n");
 		return;
 	}
 
-	if (ctrl_usb->type != OMAP_CTRL_TYPE_OTGHS)
+	if (ctrl_phy->type != OMAP_CTRL_TYPE_OTGHS)
 		return;
 
 	switch (mode) {
 	case USB_MODE_HOST:
-		omap_control_usb_host_mode(ctrl_usb);
+		omap_control_usb_host_mode(ctrl_phy);
 		break;
 	case USB_MODE_DEVICE:
-		omap_control_usb_device_mode(ctrl_usb);
+		omap_control_usb_device_mode(ctrl_phy);
 		break;
 	case USB_MODE_DISCONNECT:
-		omap_control_usb_set_sessionend(ctrl_usb);
+		omap_control_usb_set_sessionend(ctrl_phy);
 		break;
 	default:
 		dev_vdbg(dev, "invalid omap control usb mode\n");
@@ -207,13 +208,13 @@ EXPORT_SYMBOL_GPL(omap_control_usb_set_mode);
 
 #ifdef CONFIG_OF
 
-static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
-static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2;
-static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
-static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2;
-static const enum omap_control_usb_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2;
+static const enum omap_control_phy_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
+static const enum omap_control_phy_type usb2_data = OMAP_CTRL_TYPE_USB2;
+static const enum omap_control_phy_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
+static const enum omap_control_phy_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2;
+static const enum omap_control_phy_type am437usb2_data = OMAP_CTRL_TYPE_AM437USB2;
 
-static const struct of_device_id omap_control_usb_id_table[] = {
+static const struct of_device_id omap_control_phy_id_table[] = {
 	{
 		.compatible = "ti,control-phy-otghs",
 		.data = &otghs_data,
@@ -236,84 +237,84 @@ static const struct of_device_id omap_control_usb_id_table[] = {
 	},
 	{},
 };
-MODULE_DEVICE_TABLE(of, omap_control_usb_id_table);
+MODULE_DEVICE_TABLE(of, omap_control_phy_id_table);
 #endif
 
 
-static int omap_control_usb_probe(struct platform_device *pdev)
+static int omap_control_phy_probe(struct platform_device *pdev)
 {
 	struct resource	*res;
 	const struct of_device_id *of_id;
-	struct omap_control_usb *control_usb;
+	struct omap_control_phy *control_phy;
 
-	of_id = of_match_device(of_match_ptr(omap_control_usb_id_table),
-								&pdev->dev);
+	of_id = of_match_device(of_match_ptr(omap_control_phy_id_table),
+				&pdev->dev);
 	if (!of_id)
 		return -EINVAL;
 
-	control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),
+	control_phy = devm_kzalloc(&pdev->dev, sizeof(*control_phy),
 		GFP_KERNEL);
-	if (!control_usb) {
-		dev_err(&pdev->dev, "unable to alloc memory for control usb\n");
+	if (!control_phy) {
+		dev_err(&pdev->dev, "unable to alloc memory for control phy\n");
 		return -ENOMEM;
 	}
 
-	control_usb->dev = &pdev->dev;
-	control_usb->type = *(enum omap_control_usb_type *)of_id->data;
+	control_phy->dev = &pdev->dev;
+	control_phy->type = *(enum omap_control_phy_type *)of_id->data;
 
-	if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) {
+	if (control_phy->type == OMAP_CTRL_TYPE_OTGHS) {
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 			"otghs_control");
-		control_usb->otghs_control = devm_ioremap_resource(
+		control_phy->otghs_control = devm_ioremap_resource(
 			&pdev->dev, res);
-		if (IS_ERR(control_usb->otghs_control))
-			return PTR_ERR(control_usb->otghs_control);
+		if (IS_ERR(control_phy->otghs_control))
+			return PTR_ERR(control_phy->otghs_control);
 	} else {
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 				"power");
-		control_usb->power = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(control_usb->power)) {
+		control_phy->power = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(control_phy->power)) {
 			dev_err(&pdev->dev, "Couldn't get power register\n");
-			return PTR_ERR(control_usb->power);
+			return PTR_ERR(control_phy->power);
 		}
 	}
 
-	if (control_usb->type == OMAP_CTRL_TYPE_PIPE3) {
-		control_usb->sys_clk = devm_clk_get(control_usb->dev,
+	if (control_phy->type == OMAP_CTRL_TYPE_PIPE3) {
+		control_phy->sys_clk = devm_clk_get(control_phy->dev,
 			"sys_clkin");
-		if (IS_ERR(control_usb->sys_clk)) {
+		if (IS_ERR(control_phy->sys_clk)) {
 			pr_err("%s: unable to get sys_clkin\n", __func__);
 			return -EINVAL;
 		}
 	}
 
-	dev_set_drvdata(control_usb->dev, control_usb);
+	dev_set_drvdata(control_phy->dev, control_phy);
 
 	return 0;
 }
 
-static struct platform_driver omap_control_usb_driver = {
-	.probe		= omap_control_usb_probe,
+static struct platform_driver omap_control_phy_driver = {
+	.probe		= omap_control_phy_probe,
 	.driver		= {
-		.name	= "omap-control-usb",
+		.name	= "omap-control-phy",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(omap_control_usb_id_table),
+		.of_match_table = of_match_ptr(omap_control_phy_id_table),
 	},
 };
 
-static int __init omap_control_usb_init(void)
+static int __init omap_control_phy_init(void)
 {
-	return platform_driver_register(&omap_control_usb_driver);
+	return platform_driver_register(&omap_control_phy_driver);
 }
-subsys_initcall(omap_control_usb_init);
+subsys_initcall(omap_control_phy_init);
 
-static void __exit omap_control_usb_exit(void)
+static void __exit omap_control_phy_exit(void)
 {
-	platform_driver_unregister(&omap_control_usb_driver);
+	platform_driver_unregister(&omap_control_phy_driver);
 }
-module_exit(omap_control_usb_exit);
+module_exit(omap_control_phy_exit);
 
-MODULE_ALIAS("platform: omap_control_usb");
+MODULE_ALIAS("platform: omap_control_phy");
 MODULE_AUTHOR("Texas Instruments Inc.");
-MODULE_DESCRIPTION("OMAP Control Module USB Driver");
+MODULE_DESCRIPTION("OMAP Control Module PHY Driver");
 MODULE_LICENSE("GPL v2");