aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/musb/Kconfig4
-rw-r--r--drivers/usb/musb/cppi_dma.h4
-rw-r--r--drivers/usb/musb/davinci.c20
-rw-r--r--drivers/usb/musb/musb_core.c8
-rw-r--r--drivers/usb/musb/musb_host.c6
5 files changed, 13 insertions, 29 deletions
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 58b2b8fc943..4b9542bbb35 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -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
diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index fc5216b5d2c..729b4071787 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -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;
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 75baf181a8c..dfb3bcbe00f 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)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index bd82253a332..d5af6b0d8af 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -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.
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 17b5c189250..3133990f04e 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -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
*/