linux-kernel - [PATCH 18/32 v4] ARM: cns3xxx: use OHCI platform driver

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Date:	Mon,  8 Oct 2012 15:11:32 +0200
From:	Florian Fainelli <florian@...nwrt.org>
To:	stern@...land.harvard.edu
Cc:	linux-usb@...r.kernel.org, Florian Fainelli <florian@...nwrt.org>,
	Anton Vorontsov <avorontsov@...sta.com>,
	Russell King <linux@....linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 18/32 v4] ARM: cns3xxx: use OHCI platform driver

This patch converts the cns3xxx platform to use the ohci-platform driver which
is now suitable for use.

A previous patch converted the cns3xxx platform to use the ehci-platform
driver, and thus introduced the need to have power_{on,off} callbacks.
Since both the EHCI and OHCI platform drivers use the same same power_{on,off}
callbacks now, rename them to cns3xx_usb_power_{on,off} to show that they are
shared.

Signed-off-by: Florian Fainelli <florian@...nwrt.org>
---
Changes in v4:
- rebase against greg's latest usb-next

Changes in v3:
- improved commit message to give backround on the patch ordering and to
  understand the commit message

 arch/arm/mach-cns3xxx/cns3420vb.c |   18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c
index 906094c..8a00cee8 100644
--- a/arch/arm/mach-cns3xxx/cns3420vb.c
+++ b/arch/arm/mach-cns3xxx/cns3420vb.c
@@ -25,6 +25,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
 #include <linux/usb/ehci_pdriver.h>
+#include <linux/usb/ohci_pdriver.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/hardware/gic.h>
@@ -127,7 +128,7 @@ static struct resource cns3xxx_usb_ehci_resources[] = {
 
 static u64 cns3xxx_usb_ehci_dma_mask = DMA_BIT_MASK(32);
 
-static int csn3xxx_usb_ehci_power_on(struct platform_device *pdev)
+static int csn3xxx_usb_power_on(struct platform_device *pdev)
 {
 	/*
 	 * EHCI and OHCI share the same clock and power,
@@ -148,7 +149,7 @@ static int csn3xxx_usb_ehci_power_on(struct platform_device *pdev)
 	return 0;
 }
 
-static void csn3xxx_usb_ehci_power_off(struct platform_device *pdev)
+static void csn3xxx_usb_power_off(struct platform_device *pdev)
 {
 	/*
 	 * EHCI and OHCI share the same clock and power,
@@ -162,8 +163,8 @@ static void csn3xxx_usb_ehci_power_off(struct platform_device *pdev)
 
 static struct usb_ehci_pdata cns3xxx_usb_ehci_pdata = {
 	.port_power_off	= 1,
-	.power_on	= csn3xxx_usb_ehci_power_on,
-	.power_off	= csn3xxx_usb_ehci_power_off,
+	.power_on	= csn3xxx_usb_power_on,
+	.power_off	= csn3xxx_usb_power_off,
 };
 
 static struct platform_device cns3xxx_usb_ehci_device = {
@@ -191,13 +192,20 @@ static struct resource cns3xxx_usb_ohci_resources[] = {
 
 static u64 cns3xxx_usb_ohci_dma_mask = DMA_BIT_MASK(32);
 
+static struct usb_ohci_pdata cns3xxx_usb_ohci_pdata = {
+	.num_ports	= 1,
+	.power_on	= csn3xxx_usb_power_on,
+	.power_off	= csn3xxx_usb_power_off,
+};
+
 static struct platform_device cns3xxx_usb_ohci_device = {
-	.name          = "cns3xxx-ohci",
+	.name          = "ohci-platform",
 	.num_resources = ARRAY_SIZE(cns3xxx_usb_ohci_resources),
 	.resource      = cns3xxx_usb_ohci_resources,
 	.dev           = {
 		.dma_mask          = &cns3xxx_usb_ohci_dma_mask,
 		.coherent_dma_mask = DMA_BIT_MASK(32),
+		.platform_data	   = &cns3xxx_usb_ohci_pdata,
 	},
 };
 
-- 
1.7.9.5

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