DaVinci: rename setup_usb() to davinci_setup_usb()

Rename setup_usb() into davinci_setup_usb().  While at it:

- move its declaration from <mach/common.h> to more fitting <mach/usb.h>;
- teach it to handle values of the 'mA' parameter greater than 510 and thus
  pass 1000 instead of 500 for the power switches capable of sourcing over 1 A;
- teach it to handle odd values of the 'potpgt_ms' parameter...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

7 files changed, 14 insertions, 16 deletions

diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 42b24a7d46cd..a9b650dcc172 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -27,11 +27,11 @@
 #include <asm/mach/arch.h>
 
 #include <mach/dm355.h>
-#include <mach/common.h>
 #include <mach/i2c.h>
 #include <mach/serial.h>
 #include <mach/nand.h>
 #include <mach/mmc.h>
+#include <mach/usb.h>
 
 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE		0x01e10000
 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE	0x02000000
@@ -338,7 +338,7 @@ static __init void dm355_evm_init(void)
 	gpio_request(2, "usb_id_toggle");
 	gpio_direction_output(2, USB_ID_VALUE);
 	/* irlml6401 switches over 1A in under 8 msec */
-	setup_usb(500, 8);
+	davinci_setup_usb(1000, 8);
 
 	davinci_setup_mmc(0, &dm355evm_mmc_config);
 	davinci_setup_mmc(1, &dm355evm_mmc_config);
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index d9dcc2f3f7de..21f32eb41e8c 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -24,11 +24,11 @@
 #include <asm/mach/arch.h>
 
 #include <mach/dm355.h>
-#include <mach/common.h>
 #include <mach/i2c.h>
 #include <mach/serial.h>
 #include <mach/nand.h>
 #include <mach/mmc.h>
+#include <mach/usb.h>
 
 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE		0x01e10000
 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE	0x02000000
@@ -263,7 +263,7 @@ static __init void dm355_leopard_init(void)
 	gpio_request(2, "usb_id_toggle");
 	gpio_direction_output(2, USB_ID_VALUE);
 	/* irlml6401 switches over 1A in under 8 msec */
-	setup_usb(500, 8);
+	davinci_setup_usb(1000, 8);
 
 	davinci_setup_mmc(0, &dm355leopard_mmc_config);
 	davinci_setup_mmc(1, &dm355leopard_mmc_config);
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 00a80467b491..fd0398bc6db3 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -36,6 +36,7 @@
 #include <mach/mux.h>
 #include <mach/nand.h>
 #include <mach/mmc.h>
+#include <mach/usb.h>
 
 #define DM644X_EVM_PHY_MASK		(0x2)
 #define DM644X_EVM_MDIO_FREQUENCY	(2200000) /* PHY bus frequency */
@@ -465,7 +466,7 @@ evm_u35_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *c)
 	/* irlml6401 switches over 1A, in under 8 msec;
 	 * now it can be managed by nDRV_VBUS ...
 	 */
-	setup_usb(500, 8);
+	davinci_setup_usb(1000, 8);
 
 	return 0;
 }
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index e6654877b9cf..ccfd85b135e4 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -40,6 +40,7 @@
 #include <mach/i2c.h>
 #include <mach/serial.h>
 #include <mach/mux.h>
+#include <mach/usb.h>
 
 #define SFFSDR_PHY_MASK		(0x2)
 #define SFFSDR_MDIO_FREQUENCY	(2200000) /* PHY bus frequency */
@@ -152,7 +153,7 @@ static __init void davinci_sffsdr_init(void)
 	davinci_serial_init(&uart_config);
 	soc_info->emac_pdata->phy_mask = SFFSDR_PHY_MASK;
 	soc_info->emac_pdata->mdio_max_freq = SFFSDR_MDIO_FREQUENCY;
-	setup_usb(0, 0); /* We support only peripheral mode. */
+	davinci_setup_usb(0, 0); /* We support only peripheral mode. */
 
 	/* mux VLYNQ pins */
 	davinci_cfg_reg(DM644X_VLYNQEN);
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index 1fd3917cae4e..6ca2c9a0a482 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -20,12 +20,6 @@ extern void davinci_irq_init(void);
 extern void __iomem *davinci_intc_base;
 extern int davinci_intc_type;
 
-/* parameters describe VBUS sourcing for host mode */
-extern void setup_usb(unsigned mA, unsigned potpgt_msec);
-
-/* parameters describe VBUS sourcing for host mode */
-extern void setup_usb(unsigned mA, unsigned potpgt_msec);
-
 struct davinci_timer_instance {
 	void __iomem	*base;
 	u32		bottom_irq;
diff --git a/arch/arm/mach-davinci/include/mach/usb.h b/arch/arm/mach-davinci/include/mach/usb.h
index 435f2284238a..e0bc4abe69c2 100644
--- a/arch/arm/mach-davinci/include/mach/usb.h
+++ b/arch/arm/mach-davinci/include/mach/usb.h
@@ -54,4 +54,6 @@ struct	da8xx_ohci_root_hub {
 	u8	potpgt;
 };
 
+void davinci_setup_usb(unsigned mA, unsigned potpgt_ms);
+
 #endif	/* ifndef __ASM_ARCH_USB_H */
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
index 31eec87dc78f..fe20cc2e8385 100644
--- a/arch/arm/mach-davinci/usb.c
+++ b/arch/arm/mach-davinci/usb.c
@@ -83,10 +83,10 @@ static struct platform_device usb_dev = {
 	.num_resources  = ARRAY_SIZE(usb_resources),
 };
 
-void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
 {
-	usb_data.power = mA / 2;
-	usb_data.potpgt = potpgt_msec / 2;
+	usb_data.power = mA > 510 ? 255 : mA / 2;
+	usb_data.potpgt = (potpgt_ms + 1) / 2;
 
 	if (cpu_is_davinci_dm646x()) {
 		/* Override the defaults as DM6467 uses different IRQs. */
@@ -100,7 +100,7 @@ void __init setup_usb(unsigned mA, unsigned potpgt_msec)
 
 #else
 
-void __init setup_usb(unsigned mA, unsigned potpgt_msec)
+void __init davinci_setup_usb(unsigned mA, unsigned potpgt_ms)
 {
 }