usb: musb_hdrc build fixes

Minor musb_hdrc updates:

  - so it'll build on DaVinci, given relevant platform updates;
      * remove support for an un-shipped OTG prototype
      * rely on gpiolib framework conversion for the I2C GPIOs
      * the <asm/arch/hdrc_cnf.h> mechanism has been removed

  - catch comments up to the recent removal of the per-SOC header
    with the silicon configuration data;

  - and remove two inappropriate "inline" declarations which
    just bloat host side code.

There are still some more <asm/arch/XYZ.h> ==> <mach/XYZ.h>
changes needed in this driver, catching up to the relocation
of most of the include/asm-arm/arch-* contents.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org> [2.6.27]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 16 deletions

diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 75baf181a8cd..dfb3bcbe00fc 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -30,6 +30,7 @@
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 
 #include <asm/arch/hardware.h>
 #include <asm/arch/memory.h>
@@ -39,7 +40,7 @@
 #include "musb_core.h"
 
 #ifdef CONFIG_MACH_DAVINCI_EVM
-#include <asm/arch/i2c-client.h>
+#define GPIO_nVBUS_DRV          87
 #endif
 
 #include "davinci.h"
@@ -138,7 +139,6 @@ static int vbus_state = -1;
 /* VBUS SWITCHING IS BOARD-SPECIFIC */
 
 #ifdef CONFIG_MACH_DAVINCI_EVM
-#ifndef CONFIG_MACH_DAVINCI_EVM_OTG
 
 /* I2C operations are always synchronous, and require a task context.
  * With unloaded systems, using the shared workqueue seems to suffice
@@ -146,12 +146,11 @@ static int vbus_state = -1;
  */
 static void evm_deferred_drvvbus(struct work_struct *ignored)
 {
-        davinci_i2c_expander_op(0x3a, USB_DRVVBUS, vbus_state);
+        gpio_set_value_cansleep(GPIO_nVBUS_DRV, vbus_state);
         vbus_state = !vbus_state;
 }
 static DECLARE_WORK(evm_vbus_work, evm_deferred_drvvbus);
 
-#endif  /* modified board */
 #endif  /* EVM */
 
 static void davinci_source_power(struct musb *musb, int is_on, int immediate)
@@ -165,21 +164,10 @@ static void davinci_source_power(struct musb *musb, int is_on, int immediate)
 
 #ifdef CONFIG_MACH_DAVINCI_EVM
         if (machine_is_davinci_evm()) {
-#ifdef CONFIG_MACH_DAVINCI_EVM_OTG
-                /* modified EVM board switching VBUS with GPIO(6) not I2C
-                 * NOTE:  PINMUX0.RGB888 (bit23) must be clear
-                 */
-                if (is_on)
-                        gpio_set(GPIO(6));
-                else
-                        gpio_clear(GPIO(6));
-                immediate = 1;
-#else
                 if (immediate)
-                        davinci_i2c_expander_op(0x3a, USB_DRVVBUS, !is_on);
+                        gpio_set_value_cansleep(GPIO_nVBUS_DRV, vbus_state);
                 else
                         schedule_work(&evm_vbus_work);
-#endif
         }
 #endif
         if (immediate)