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usb: musb_hdrc build fixes

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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>
This commit is contained in:
David Brownell 2008-09-11 11:53:23 +03:00 committed by Greg Kroah-Hartman
parent 64ca44a65a
commit c767c1c6f1
5 changed files with 13 additions and 29 deletions
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4
drivers/usb/musb/Kconfig
View File

@ -33,10 +33,6 @@ config USB_MUSB_SOC
default y if ARCH_DAVINCI
default y if ARCH_OMAP2430
default y if ARCH_OMAP34XX
help
Use a static <asm/arch/hdrc_cnf.h> file to describe how the
controller is configured (endpoints, mechanisms, etc) on the
current iteration of a given system-on-chip.
comment "DaVinci 644x USB support"
depends on USB_MUSB_HDRC && ARCH_DAVINCI

4
drivers/usb/musb/cppi_dma.h
View File

@ -119,8 +119,8 @@ struct cppi {
void __iomem *mregs; /* Mentor regs */
void __iomem *tibase; /* TI/CPPI regs */
struct cppi_channel tx[MUSB_C_NUM_EPT - 1];
struct cppi_channel rx[MUSB_C_NUM_EPR - 1];
struct cppi_channel tx[4];
struct cppi_channel rx[4];
struct dma_pool *pool;

20
drivers/usb/musb/davinci.c
View File

@ -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)

8
drivers/usb/musb/musb_core.c
View File

@ -82,9 +82,9 @@
/*
* This gets many kinds of configuration information:
* - Kconfig for everything user-configurable
* - <asm/arch/hdrc_cnf.h> for SOC or family details
* - platform_device for addressing, irq, and platform_data
* - platform_data is mostly for board-specific informarion
* (plus recentrly, SOC or family details)
*
* Most of the conditional compilation will (someday) vanish.
*/
@ -974,9 +974,9 @@ static void musb_shutdown(struct platform_device *pdev)
/*
* The silicon either has hard-wired endpoint configurations, or else
* "dynamic fifo" sizing. The driver has support for both, though at this
* writing only the dynamic sizing is very well tested. We use normal
* idioms to so both modes are compile-tested, but dead code elimination
* leaves only the relevant one in the object file.
* writing only the dynamic sizing is very well tested. Since we switched
* away from compile-time hardware parameters, we can no longer rely on
* dead code elimination to leave only the relevant one in the object file.
*
* We don't currently use dynamic fifo setup capability to do anything
* more than selecting one of a bunch of predefined configurations.

6
drivers/usb/musb/musb_host.c
View File

@ -108,7 +108,7 @@ static void musb_ep_program(struct musb *musb, u8 epnum,
/*
* Clear TX fifo. Needed to avoid BABBLE errors.
*/
static inline void musb_h_tx_flush_fifo(struct musb_hw_ep *ep)
static void musb_h_tx_flush_fifo(struct musb_hw_ep *ep)
{
void __iomem *epio = ep->regs;
u16 csr;
@ -435,7 +435,7 @@ musb_advance_schedule(struct musb *musb, struct urb *urb,
}
}
static inline u16 musb_h_flush_rxfifo(struct musb_hw_ep *hw_ep, u16 csr)
static u16 musb_h_flush_rxfifo(struct musb_hw_ep *hw_ep, u16 csr)
{
/* we don't want fifo to fill itself again;
* ignore dma (various models),
@ -1004,7 +1004,7 @@ static bool musb_h_ep0_continue(struct musb *musb, u16 len, struct urb *urb)
/*
* Handle default endpoint interrupt as host. Only called in IRQ time
* from the LinuxIsr() interrupt service routine.
* from musb_interrupt().
*
* called with controller irqlocked
*/