Set the USBPCTRL0 register from the passed platform data in rcar_usb_phy_init();
don't reset it to 0 in rcar_usb_phy_shutdown() anymore as that does not make
sense. Also, don't allow the driver's probe to succeed when the platform data
are not supplied with a device.
The patch has been tested on the Marzen and BOCK-W boards.
Signed-off-by: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto...@renesas.com>
Acked-by: Simon Horman <horms+rene...@verge.net.au>
---
Changes since version 2:
- added a note about testing to the changelog;
- added ACKs from Simon Horman and Kuninori Morimoto.
drivers/usb/phy/rcar-phy.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
Index: renesas/drivers/usb/phy/rcar-phy.c
===================================================================
--- renesas.orig/drivers/usb/phy/rcar-phy.c
+++ renesas/drivers/usb/phy/rcar-phy.c
@@ -1,8 +1,9 @@
/*
* Renesas R-Car USB phy driver
*
- * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012-2013 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto...@renesas.com>
+ * Copyright (C) 2013 Cogent Embedded, Inc.
*
* 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
@@ -11,10 +12,11 @@
#include <linux/delay.h>
#include <linux/io.h>
-#include <linux/usb/otg.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/module.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/rcar-phy.h>
/* REGS block */
#define USBPCTRL0 0x00
@@ -55,6 +57,7 @@ static int rcar_usb_phy_init(struct usb_
{
struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
struct device *dev = phy->dev;
+ struct rcar_phy_platform_data *pdata = dev->platform_data;
void __iomem *reg0 = priv->reg0;
int i;
u32 val;
@@ -90,7 +93,7 @@ static int rcar_usb_phy_init(struct usb_
iowrite32(PHY_ENB | PLL_ENB | PHY_RST, (reg0 + USBPCTRL1));
/* set platform specific port settings */
- iowrite32(0x00000000, (reg0 + USBPCTRL0));
+ iowrite32(pdata->usbpctrl0, (reg0 + USBPCTRL0));
/*
* Bus alignment settings
@@ -117,10 +120,8 @@ static void rcar_usb_phy_shutdown(struct
spin_lock_irqsave(&priv->lock, flags);
- if (priv->counter-- == 1) { /* last user */
- iowrite32(0x00000000, (reg0 + USBPCTRL0));
+ if (priv->counter-- == 1) /* last user */
iowrite32(0x00000000, (reg0 + USBPCTRL1));
- }
spin_unlock_irqrestore(&priv->lock, flags);
}
@@ -133,6 +134,11 @@ static int rcar_usb_phy_probe(struct pla
void __iomem *reg0;
int ret;
+ if (!pdev->dev.platform_data) {
+ dev_err(dev, "No platform data\n");
+ return -EINVAL;
+ }
+
res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res0) {
dev_err(dev, "Not enough platform resources\n");
--
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