lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-id: <1382710529-12082-3-git-send-email-k.debski@samsung.com>
Date:	Fri, 25 Oct 2013 16:15:26 +0200
From:	Kamil Debski <k.debski@...sung.com>
To:	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm@...r.kernel.org
Cc:	kyungmin.park@...sung.com, kishon@...com, t.figa@...sung.com,
	s.nawrocki@...sung.com, m.szyprowski@...sung.com,
	gautam.vivek@...sung.com, mat.krawczuk@...il.com,
	Kamil Debski <k.debski@...sung.com>
Subject: [RFC PATCH 2/5] phy: Add WIP Exynos 5250 support to the Exynos USB PHY
 driver

Add support for Exynos 5250. This is work-in-progress commit. Not
for merging.

Signed-off-by: Kamil Debski <k.debski@...sung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
---
 drivers/phy/Kconfig              |    7 +
 drivers/phy/Makefile             |    1 +
 drivers/phy/phy-exynos-usb.c     |   10 +
 drivers/phy/phy-exynos-usb.h     |    1 +
 drivers/phy/phy-exynos5250-usb.c |  411 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 430 insertions(+)
 create mode 100644 drivers/phy/phy-exynos5250-usb.c

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 2f7ac0a..0f598d0 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -36,4 +36,11 @@ config PHY_EXYNOS4212_USB
 	help
 	  Enable USB PHY support for Exynos 4212
 
+config PHY_EXYNOS5250_USB
+	bool "Support for Exynos 5250"
+	depends on PHY_EXYNOS_USB
+	depends on SOC_EXYNOS5250
+	help
+	  Enable USB PHY support for Exynos 5250
+
 endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index ca3dc82..0dff0dd 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_GENERIC_PHY)	+= phy-core.o
 obj-$(CONFIG_PHY_EXYNOS_USB)		+= phy-exynos-usb.o
 obj-$(CONFIG_PHY_EXYNOS4210_USB)	+= phy-exynos4210-usb.o
 obj-$(CONFIG_PHY_EXYNOS4212_USB)	+= phy-exynos4212-usb.o
+obj-$(CONFIG_PHY_EXYNOS5250_USB)	+= phy-exynos5250-usb.o
diff --git a/drivers/phy/phy-exynos-usb.c b/drivers/phy/phy-exynos-usb.c
index d4a26df..172b774 100644
--- a/drivers/phy/phy-exynos-usb.c
+++ b/drivers/phy/phy-exynos-usb.c
@@ -212,6 +212,10 @@ extern const struct uphy_config exynos4210_uphy_config;
 extern const struct uphy_config exynos4212_uphy_config;
 #endif
 
+#ifdef CONFIG_PHY_EXYNOS5250_USB
+extern const struct uphy_config exynos5250_uphy_config;
+#endif
+
 static const struct of_device_id exynos_uphy_of_match[] = {
 #ifdef CONFIG_PHY_EXYNOS4210_USB
 	{
@@ -225,6 +229,12 @@ static const struct of_device_id exynos_uphy_of_match[] = {
 		.data = &exynos4212_uphy_config,
 	},
 #endif
+#ifdef CONFIG_PHY_EXYNOS5250_USB
+	{
+		.compatible = "samsung,exynos5250-usbphy",
+		.data = &exynos5250_uphy_config,
+	},
+#endif
 	{ },
 };
 
diff --git a/drivers/phy/phy-exynos-usb.h b/drivers/phy/phy-exynos-usb.h
index f45cb3c..a9febfa 100644
--- a/drivers/phy/phy-exynos-usb.h
+++ b/drivers/phy/phy-exynos-usb.h
@@ -42,6 +42,7 @@ enum samsung_cpu_type {
 	TYPE_S3C64XX,
 	TYPE_EXYNOS4210,
 	TYPE_EXYNOS4212,
+	TYPE_EXYNOS5250,
 };
 
 enum uphy_state {
diff --git a/drivers/phy/phy-exynos5250-usb.c b/drivers/phy/phy-exynos5250-usb.c
new file mode 100644
index 0000000..156093b
--- /dev/null
+++ b/drivers/phy/phy-exynos5250-usb.c
@@ -0,0 +1,411 @@
+/*
+ * Samsung S5P/EXYNOS SoC series USB PHY driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Kamil Debski <k.debski@...sung.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/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include "phy-exynos-usb.h"
+
+/* Exynos USB PHY registers */
+#define EXYNOS_5250_REFCLKSEL_CRYSTAL	0x0
+#define EXYNOS_5250_REFCLKSEL_XO	0x1
+#define EXYNOS_5250_REFCLKSEL_CLKCORE	0x2
+
+#define EXYNOS_5250_FSEL_9MHZ6		0x0
+#define EXYNOS_5250_FSEL_10MHZ		0x1
+#define EXYNOS_5250_FSEL_12MHZ		0x2
+#define EXYNOS_5250_FSEL_19MHZ2		0x3
+#define EXYNOS_5250_FSEL_20MHZ		0x4
+#define EXYNOS_5250_FSEL_24MHZ		0x5
+#define EXYNOS_5250_FSEL_50MHZ		0x7
+
+/* Normal host */
+#define EXYNOS_5250_HOSTPHYCTRL0			0x0
+
+#define EXYNOS_5250_HOSTPHYCTRL0_PHYSWRSTALL		(0x1 << 31)
+#define EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_SHIFT	19
+#define EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_MASK	\
+		(0x3 << EXYNOS_5250_HOSTPHYCTRL0_REFCLKSEL_SHIFT)
+#define EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT		16
+#define EXYNOS_5250_HOSTPHYCTRL0_FSEL_MASK \
+		(0x7 << EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT)
+#define EXYNOS_5250_HOSTPHYCTRL0_TESTBURNIN		(0x1 << 11)
+#define EXYNOS_5250_HOSTPHYCTRL0_RETENABLE		(0x1 << 10)
+#define EXYNOS_5250_HOSTPHYCTRL0_COMMON_ON_N		(0x1 << 9)
+#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_MASK		(0x3 << 7)
+#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_DUAL		(0x0 << 7)
+#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_ID0		(0x1 << 7)
+#define EXYNOS_5250_HOSTPHYCTRL0_VATESTENB_ANALOGTEST	(0x2 << 7)
+#define EXYNOS_5250_HOSTPHYCTRL0_SIDDQ			(0x1 << 6)
+#define EXYNOS_5250_HOSTPHYCTRL0_FORCESLEEP		(0x1 << 5)
+#define EXYNOS_5250_HOSTPHYCTRL0_FORCESUSPEND		(0x1 << 4)
+#define EXYNOS_5250_HOSTPHYCTRL0_WORDINTERFACE		(0x1 << 3)
+#define EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST		(0x1 << 2)
+#define EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST		(0x1 << 1)
+#define EXYNOS_5250_HOSTPHYCTRL0_PHYSWRST		(0x1 << 0)
+
+/* HSIC0 & HSCI1 */
+#define EXYNOS_5250_HOSTPHYCTRL1			0x10
+#define EXYNOS_5250_HOSTPHYCTRL2			0x20
+
+#define EXYNOS_5250_HOSTPHYCTRLX_REFCLKSEL_MASK		(0x3 << 23)
+#define EXYNOS_5250_HOSTPHYCTRLX_REFCLKDIV_MASK		(0x7f << 16)
+#define EXYNOS_5250_HOSTPHYCTRLX_SIDDQ			(0x1 << 6)
+#define EXYNOS_5250_HOSTPHYCTRLX_FORCESLEEP		(0x1 << 5)
+#define EXYNOS_5250_HOSTPHYCTRLX_FORCESUSPEND		(0x1 << 4)
+#define EXYNOS_5250_HOSTPHYCTRLX_WORDINTERFACE		(0x1 << 3)
+#define EXYNOS_5250_HOSTPHYCTRLX_UTMISWRST		(0x1 << 2)
+#define EXYNOS_5250_HOSTPHYCTRLX_PHYSWRST		(0x1 << 0)
+
+/* EHCI control */
+#define EXYNOS_5250_HOSTEHCICTRL			0x30
+#define EXYNOS_5250_HOSTEHCICTRL_ENAINCRXALIGN		(0x1 << 29)
+#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR4		(0x1 << 28)
+#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR8		(0x1 << 27)
+#define EXYNOS_5250_HOSTEHCICTRL_ENAINCR16		(0x1 << 26)
+#define EXYNOS_5250_HOSTEHCICTRL_AUTOPPDONOVRCUREN	(0x1 << 25)
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT	19
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_MASK	\
+		(0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT)
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_SHIFT	13
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_MASK	\
+		(0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL1_SHIFT)
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL2_SHIFT	7
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_MASK	\
+		(0x3f << EXYNOS_5250_HOSTEHCICTRL_FLADJVAL0_SHIFT)
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_SHIFT	1
+#define EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_MASK \
+		(0x1 << EXYNOS_5250_HOSTEHCICTRL_FLADJVALHOST_SHIFT)
+#define EXYNOS_5250_HOSTEHCICTRL_SIMULATIONMODE		(0x1 << 0)
+
+/* OHCI control */
+#define EXYNOS_5250_HOSTOHCICTRL                        0x34
+#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_SHIFT	1
+#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_MASK \
+		(0x3ff << EXYNOS_5250_HOSTOHCICTRL_FRAMELENVAL_SHIFT)
+#define EXYNOS_5250_HOSTOHCICTRL_FRAMELENVALEN		(0x1 << 0)
+
+/* USBOTG */
+#define EXYNOS_5250_USBOTGSYS				0x38
+#define EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET		(0x1 << 14)
+#define EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG		(0x1 << 13)
+#define EXYNOS_5250_USBOTGSYS_PHY_SW_RST		(0x1 << 12)
+#define EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT		9
+#define EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK \
+		(0x3 << EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT)
+#define EXYNOS_5250_USBOTGSYS_ID_PULLUP			(0x1 << 8)
+#define EXYNOS_5250_USBOTGSYS_COMMON_ON			(0x1 << 7)
+#define EXYNOS_5250_USBOTGSYS_FSEL_SHIFT		4
+#define EXYNOS_5250_USBOTGSYS_FSEL_MASK \
+		(0x3 << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT)
+#define EXYNOS_5250_USBOTGSYS_FORCE_SLEEP		(0x1 << 3)
+#define EXYNOS_5250_USBOTGSYS_OTGDISABLE		(0x1 << 2)
+#define EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG		(0x1 << 1)
+#define EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND		(0x1 << 0)
+
+/* Isolation, configured in the power management unit */
+#define EXYNOS_5250_USB_ISOL_OTG_OFFSET		0x0
+#define EXYNOS_5250_USB_ISOL_OTG		(1 << 0)
+#define EXYNOS_5250_USB_ISOL_HOST_OFFSET	0x4
+#define EXYNOS_5250_USB_ISOL_HOST		(1 << 0)
+
+enum exynos4x12_phy_id {
+	EXYNOS5250_DEVICE,
+	EXYNOS5250_HOST,
+	EXYNOS5250_HSIC0,
+	EXYNOS5250_HSIC1,
+	EXYNOS5250_NUM_PHYS,
+};
+
+/* exynos5250_rate_to_clk() converts the supplied clock rate to the value that
+ * can be written to the phy register. */
+static u32 exynos5250_rate_to_clk(unsigned long rate)
+{
+	unsigned int clksel;
+
+	/* EXYNOS_5250_FSEL_MASK */
+
+	switch (rate) {
+	case 9600 * KHZ:
+		clksel = EXYNOS_5250_FSEL_9MHZ6;
+		break;
+	case 10 * MHZ:
+		clksel = EXYNOS_5250_FSEL_10MHZ;
+		break;
+	case 12 * MHZ:
+		clksel = EXYNOS_5250_FSEL_12MHZ;
+		break;
+	case 19200 * KHZ:
+		clksel = EXYNOS_5250_FSEL_19MHZ2;
+		break;
+	case 20 * MHZ:
+		clksel = EXYNOS_5250_FSEL_20MHZ;
+		break;
+	case 24 * MHZ:
+		clksel = EXYNOS_5250_FSEL_24MHZ;
+		break;
+	case 50 * MHZ:
+		clksel = EXYNOS_5250_FSEL_50MHZ;
+		break;
+	default:
+		clksel = CLKSEL_ERROR;
+	}
+
+	return clksel;
+}
+
+static void exynos5250_isol(struct uphy_instance *inst, bool on)
+{
+	struct uphy_driver *drv = inst->drv;
+	u32 offset;
+	u32 mask;
+	u32 tmp;
+
+	if (!drv->reg_isol)
+		return;
+
+	switch (inst->cfg->id) {
+	case EXYNOS5250_DEVICE:
+		offset = EXYNOS_5250_USB_ISOL_OTG_OFFSET;
+		mask = EXYNOS_5250_USB_ISOL_OTG;
+		break;
+	case EXYNOS5250_HOST:
+		offset = EXYNOS_5250_USB_ISOL_HOST_OFFSET;
+		mask = EXYNOS_5250_USB_ISOL_HOST;
+		break;
+	default:
+		return;
+	};
+
+	tmp = readl(drv->reg_isol + offset);
+	if (on)
+		tmp &= ~mask;
+	else
+		tmp |= mask;
+	writel(tmp, drv->reg_isol + offset);
+}
+
+static void exynos5250_phy_pwr(struct uphy_instance *inst, bool on)
+{
+	struct uphy_driver *drv = inst->drv;
+	u32 ctrl0;
+	u32 otg;
+	u32 ehci;
+	u32 ohci;
+
+	switch (inst->cfg->id) {
+	case EXYNOS5250_DEVICE:
+		writel(0, drv->reg_mode);
+
+		/* OTG configuration */
+		otg = readl(drv->reg_phy + EXYNOS_5250_USBOTGSYS);
+		/* The clock */
+		otg &= ~EXYNOS_5250_USBOTGSYS_FSEL_MASK;
+		otg |= inst->clk << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT;
+		/* Reset */
+		otg &= ~(EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND |
+			EXYNOS_5250_USBOTGSYS_FORCE_SLEEP |
+			EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG);
+		/* TODO: Clear 4 bits as the old driver does. */
+		otg |=	EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
+			EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET |
+			EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
+			EXYNOS_5250_USBOTGSYS_OTGDISABLE;
+		/* Ref clock */
+		otg &=	EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK;
+		otg |=  EXYNOS_5250_REFCLKSEL_CLKCORE <<
+					EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT;
+		writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
+		udelay(10);
+		otg &= ~(EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
+			EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
+			EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET);
+
+
+		break;
+	case EXYNOS5250_HOST:
+		/* Host registers configuration */
+		ctrl0 = readl(drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
+		/* The clock */
+		ctrl0 &= ~EXYNOS_5250_HOSTPHYCTRL0_FSEL_MASK;
+		ctrl0 |= inst->clk << EXYNOS_5250_HOSTPHYCTRL0_FSEL_SHIFT;
+
+		/* Reset */
+		ctrl0 &= ~(	EXYNOS_5250_HOSTPHYCTRL0_PHYSWRST |
+				EXYNOS_5250_HOSTPHYCTRL0_PHYSWRSTALL |
+				EXYNOS_5250_HOSTPHYCTRL0_SIDDQ |
+				EXYNOS_5250_HOSTPHYCTRL0_FORCESUSPEND |
+				EXYNOS_5250_HOSTPHYCTRL0_FORCESLEEP);
+		ctrl0 |=	EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST |
+				EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST |
+				EXYNOS_5250_HOSTPHYCTRL0_COMMON_ON_N;
+		writel(ctrl0, drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
+		udelay(10);
+		ctrl0 &= ~(	EXYNOS_5250_HOSTPHYCTRL0_LINKSWRST |
+				EXYNOS_5250_HOSTPHYCTRL0_UTMISWRST);
+		writel(ctrl0, drv->reg_phy + EXYNOS_5250_HOSTPHYCTRL0);
+
+		/* OTG configuration */
+		otg = readl(drv->reg_phy + EXYNOS_5250_USBOTGSYS);
+		/* The clock */
+		otg &= ~EXYNOS_5250_USBOTGSYS_FSEL_MASK;
+		otg |= inst->clk << EXYNOS_5250_USBOTGSYS_FSEL_SHIFT;
+		/* Reset */
+		otg &= ~(EXYNOS_5250_USBOTGSYS_FORCE_SUSPEND |
+			EXYNOS_5250_USBOTGSYS_FORCE_SLEEP |
+			EXYNOS_5250_USBOTGSYS_SIDDQ_UOTG);
+		/* TODO: Clear 4 bits as the old driver does. */
+		otg |=	EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
+			EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET |
+			EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
+			EXYNOS_5250_USBOTGSYS_OTGDISABLE;
+		/* Ref clock */
+		otg &=	EXYNOS_5250_USBOTGSYS_REFCLKSEL_MASK;
+		otg |=  EXYNOS_5250_REFCLKSEL_CLKCORE <<
+					EXYNOS_5250_USBOTGSYS_REFCLKSEL_SHIFT;
+		writel(otg, drv->reg_phy + EXYNOS_5250_USBOTGSYS);
+		udelay(10);
+		otg &= ~(EXYNOS_5250_USBOTGSYS_PHY_SW_RST |
+			EXYNOS_5250_USBOTGSYS_LINK_SW_RST_UOTG |
+			EXYNOS_5250_USBOTGSYS_PHYLINK_SW_RESET);
+
+		/* Enable EHCI DMA burst */
+		ehci = readl(drv->reg_phy + EXYNOS_5250_HOSTEHCICTRL);
+		ehci |=	EXYNOS_5250_HOSTEHCICTRL_ENAINCRXALIGN |
+			EXYNOS_5250_HOSTEHCICTRL_ENAINCR4 |
+			EXYNOS_5250_HOSTEHCICTRL_ENAINCR8 |
+			EXYNOS_5250_HOSTEHCICTRL_ENAINCR16;
+		writel(ehci, drv->reg_phy + EXYNOS_5250_HOSTEHCICTRL);
+
+		/* OHCI settings */
+		ohci = readl(drv->reg_phy + EXYNOS_5250_HOSTOHCICTRL);
+		/* Let's do some undocumented magic (based on the old driver) */
+		ohci |=	0x1 << 3;
+		writel(ohci, drv->reg_phy + EXYNOS_5250_HOSTOHCICTRL);
+
+		break;
+	}
+}
+
+static int exynos5250_power_on(struct uphy_instance *inst)
+{
+	struct uphy_driver *drv = inst->drv;
+
+	if (inst->state == STATE_ON) {
+		dev_err(drv->dev, "usb phy \"%s\" already on",
+							inst->cfg->label);
+		return -ENODEV;
+	}
+
+	inst->state = STATE_ON;
+	inst->ref_cnt++;
+	if (inst->ref_cnt > 1)
+		return 0;
+
+	exynos5250_phy_pwr(inst, 1);
+	exynos5250_isol(inst, 0);
+
+	/* Power on the device, as it is necessary for HSIC to work */
+	if (inst->cfg->id == EXYNOS5250_HSIC0) {
+		struct uphy_instance *device =
+					&drv->uphy_instances[EXYNOS5250_DEVICE];
+		device->ref_cnt++;
+		if (device->ref_cnt > 1)
+			return 0;
+		exynos5250_phy_pwr(device, 1);
+		exynos5250_isol(device, 0);
+	}
+
+	return 0;
+}
+
+static int exynos5250_power_off(struct uphy_instance *inst)
+{
+	struct uphy_driver *drv = inst->drv;
+
+	if (inst->state == STATE_OFF) {
+		dev_err(drv->dev, "usb phy \"%s\" already off",
+							inst->cfg->label);
+		return -EINVAL;
+	}
+
+	inst->state = STATE_OFF;
+	inst->ref_cnt--;
+
+	if (inst->ref_cnt > 0)
+		return 0;
+
+	exynos5250_isol(inst, 1);
+	exynos5250_phy_pwr(inst, 0);
+
+	if (inst->cfg->id == EXYNOS5250_HSIC0) {
+		struct uphy_instance *device =
+					&drv->uphy_instances[EXYNOS5250_DEVICE];
+		device->ref_cnt--;
+		if (device->ref_cnt > 0)
+			return 0;
+		exynos5250_isol(device, 1);
+		exynos5250_phy_pwr(device, 0);
+	}
+
+	return 0;
+}
+
+
+static const struct common_phy exynos5250_phys[] = {
+	{
+		.label		= "device",
+		.type		= PHY_DEVICE,
+		.id		= EXYNOS5250_DEVICE,
+		.rate_to_clk	= exynos5250_rate_to_clk,
+		.power_on	= exynos5250_power_on,
+		.power_off	= exynos5250_power_off,
+	},
+	{
+		.label		= "host",
+		.type		= PHY_HOST,
+		.id		= EXYNOS5250_HOST,
+		.rate_to_clk	= exynos5250_rate_to_clk,
+		.power_on	= exynos5250_power_on,
+		.power_off	= exynos5250_power_off,
+	},
+	{
+		.label		= "hsic0",
+		.type		= PHY_HOST,
+		.id		= EXYNOS5250_HSIC0,
+		.rate_to_clk	= exynos5250_rate_to_clk,
+		.power_on	= exynos5250_power_on,
+		.power_off	= exynos5250_power_off,
+	},
+	{
+		.label		= "hsic1",
+		.type		= PHY_HOST,
+		.id		= EXYNOS5250_HSIC1,
+		.rate_to_clk	= exynos5250_rate_to_clk,
+		.power_on	= exynos5250_power_on,
+		.power_off	= exynos5250_power_off,
+	},
+	{},
+};
+
+const struct uphy_config exynos5250_uphy_config = {
+	.cpu		= TYPE_EXYNOS5250,
+	.num_phys	= EXYNOS5250_NUM_PHYS,
+	.phys		= exynos5250_phys,
+};
+
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ