linux-kernel - [PATCH 24/25] MIPS: Alchemy: use the OHCI platform driver

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Date:	Wed,  3 Oct 2012 17:03:20 +0200
From:	Florian Fainelli <florian@...nwrt.org>
To:	stern@...land.harvard.edu
Cc:	linux-usb@...r.kernel.org, Florian Fainelli <florian@...nwrt.org>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Manuel Lauss <manuel.lauss@...glemail.com>,
	Thomas Meyer <thomas@...3r.de>,
	"David S. Miller" <davem@...emloft.net>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 24/25] MIPS: Alchemy: use the OHCI platform driver

This also greatly simplifies the power_{on,off} callbacks and make them
work on platform device id instead of checking the OHCI controller base
address like what was done in ohci-au1xxx.c.

Signed-off-by: Florian Fainelli <florian@...nwrt.org>
---
 arch/mips/alchemy/common/platform.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 57335a2..cd12458 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -18,6 +18,7 @@
 #include <linux/serial_8250.h>
 #include <linux/slab.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
@@ -142,6 +143,34 @@ static struct usb_ehci_pdata alchemy_ehci_pdata = {
 	.power_suspend		= alchemy_ehci_power_off,
 };
 
+/* Power on callback for the ohci platform driver */
+static int alchemy_ohci_power_on(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	return alchemy_usb_control(unit, 1);
+}
+
+/* Power off/suspend callback for the ohci platform driver */
+static void alchemy_ohci_power_off(struct platform_device *pdev)
+{
+	int unit;
+
+	unit = (pdev->id == 1) ?
+		ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;
+
+	alchemy_usb_control(unit, 0);
+}
+
+static struct usb_ohci_pdata alchemy_ohci_pdata = {
+	.power_on		= alchemy_ohci_power_on,
+	.power_off		= alchemy_ohci_power_off,
+	.power_suspend		= alchemy_ohci_power_off,
+};
+
 static unsigned long alchemy_ohci_data[][2] __initdata = {
 	[ALCHEMY_CPU_AU1000] = { AU1000_USB_OHCI_PHYS_ADDR, AU1000_USB_HOST_INT },
 	[ALCHEMY_CPU_AU1500] = { AU1000_USB_OHCI_PHYS_ADDR, AU1500_USB_HOST_INT },
@@ -192,6 +221,7 @@ static void __init alchemy_setup_usb(int ctype)
 	pdev->name = "au1xxx-ohci";
 	pdev->id = 0;
 	pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+	pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 	if (platform_device_register(pdev))
 		printk(KERN_INFO "Alchemy USB: cannot add OHCI0\n");
@@ -231,6 +261,7 @@ static void __init alchemy_setup_usb(int ctype)
 		pdev->name = "au1xxx-ohci";
 		pdev->id = 1;
 		pdev->dev.dma_mask = &alchemy_ohci_dmamask;
+		pdev->dev.platform_data = &alchemy_ohci_pdata;
 
 		if (platform_device_register(pdev))
 			printk(KERN_INFO "Alchemy USB: cannot add OHCI1\n");
-- 
1.7.9.5

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