提交 70d13e08 编写于 作者: R Russell King 提交者: Russell King

[ARM] netwinder: clean up GPIO naming

Netwinder was using gpio_xxx names which could clash with the GPIO
layer.  Add a 'nw_' prefix to ensure that these remain separate.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 7ec80ddf
......@@ -10,6 +10,7 @@
#include <linux/init.h>
#include <linux/screen_info.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/hardware/dec21285.h>
#include <asm/mach-types.h>
......
......@@ -14,6 +14,7 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/pgtable.h>
#include <asm/page.h>
......
......@@ -7,6 +7,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <asm/irq.h>
......
......@@ -17,6 +17,7 @@
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/irq.h>
#include <asm/system.h>
......
......@@ -12,6 +12,7 @@
*/
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/dma.h>
#include <asm/scatterlist.h>
......
......@@ -4,6 +4,7 @@
* EBSA285 machine fixup
*/
#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/hardware/dec21285.h>
#include <asm/mach-types.h>
......
......@@ -86,10 +86,11 @@
#define CPLD_FLASH_WR_ENABLE 1
#ifndef __ASSEMBLY__
extern void gpio_modify_op(int mask, int set);
extern void gpio_modify_io(int mask, int in);
extern int gpio_read(void);
extern void cpld_modify(int mask, int set);
extern spinlock_t nw_gpio_lock;
extern void nw_gpio_modify_op(unsigned int mask, unsigned int set);
extern void nw_gpio_modify_io(unsigned int mask, unsigned int in);
extern unsigned int nw_gpio_read(void);
extern void nw_cpld_modify(unsigned int mask, unsigned int set);
#endif
#define pcibios_assign_all_busses() 1
......
......@@ -19,6 +19,7 @@
#include <linux/list.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/mach/irq.h>
......
......@@ -11,6 +11,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>
#include <asm/hardware/dec21285.h>
#include <asm/leds.h>
......@@ -67,13 +68,14 @@ static inline void wb977_ww(int reg, int val)
/*
* This is a lock for accessing ports GP1_IO_BASE and GP2_IO_BASE
*/
DEFINE_SPINLOCK(gpio_lock);
DEFINE_SPINLOCK(nw_gpio_lock);
EXPORT_SYMBOL(nw_gpio_lock);
static unsigned int current_gpio_op;
static unsigned int current_gpio_io;
static unsigned int current_cpld;
void gpio_modify_op(int mask, int set)
void nw_gpio_modify_op(unsigned int mask, unsigned int set)
{
unsigned int new_gpio, changed;
......@@ -86,6 +88,7 @@ void gpio_modify_op(int mask, int set)
if (changed & 0xff00)
outb(new_gpio >> 8, GP2_IO_BASE);
}
EXPORT_SYMBOL(nw_gpio_modify_op);
static inline void __gpio_modify_io(int mask, int in)
{
......@@ -118,7 +121,7 @@ static inline void __gpio_modify_io(int mask, int in)
}
}
void gpio_modify_io(int mask, int in)
void nw_gpio_modify_io(unsigned int mask, unsigned int in)
{
/* Open up the SuperIO chip */
wb977_open();
......@@ -128,11 +131,13 @@ void gpio_modify_io(int mask, int in)
/* Close up the EFER gate */
wb977_close();
}
EXPORT_SYMBOL(nw_gpio_modify_io);
int gpio_read(void)
unsigned int nw_gpio_read(void)
{
return inb(GP1_IO_BASE) | inb(GP2_IO_BASE) << 8;
}
EXPORT_SYMBOL(nw_gpio_read);
/*
* Initialise the Winbond W83977F global registers
......@@ -322,9 +327,9 @@ static inline void wb977_init_gpio(void)
/*
* Set Group1/Group2 outputs
*/
spin_lock_irqsave(&gpio_lock, flags);
gpio_modify_op(-1, GPIO_RED_LED | GPIO_FAN);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(-1, GPIO_RED_LED | GPIO_FAN);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
/*
......@@ -359,34 +364,35 @@ static void __init wb977_init(void)
wb977_close();
}
void cpld_modify(int mask, int set)
void nw_cpld_modify(unsigned int mask, unsigned int set)
{
int msk;
current_cpld = (current_cpld & ~mask) | set;
gpio_modify_io(GPIO_DATA | GPIO_IOCLK | GPIO_IOLOAD, 0);
gpio_modify_op(GPIO_IOLOAD, 0);
nw_gpio_modify_io(GPIO_DATA | GPIO_IOCLK | GPIO_IOLOAD, 0);
nw_gpio_modify_op(GPIO_IOLOAD, 0);
for (msk = 8; msk; msk >>= 1) {
int bit = current_cpld & msk;
gpio_modify_op(GPIO_DATA | GPIO_IOCLK, bit ? GPIO_DATA : 0);
gpio_modify_op(GPIO_IOCLK, GPIO_IOCLK);
nw_gpio_modify_op(GPIO_DATA | GPIO_IOCLK, bit ? GPIO_DATA : 0);
nw_gpio_modify_op(GPIO_IOCLK, GPIO_IOCLK);
}
gpio_modify_op(GPIO_IOCLK|GPIO_DATA, 0);
gpio_modify_op(GPIO_IOLOAD|GPIO_DSCLK, GPIO_IOLOAD|GPIO_DSCLK);
gpio_modify_op(GPIO_IOLOAD, 0);
nw_gpio_modify_op(GPIO_IOCLK|GPIO_DATA, 0);
nw_gpio_modify_op(GPIO_IOLOAD|GPIO_DSCLK, GPIO_IOLOAD|GPIO_DSCLK);
nw_gpio_modify_op(GPIO_IOLOAD, 0);
}
EXPORT_SYMBOL(nw_cpld_modify);
static void __init cpld_init(void)
{
unsigned long flags;
spin_lock_irqsave(&gpio_lock, flags);
cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_cpld_modify(-1, CPLD_UNMUTE | CPLD_7111_DISABLE);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
static unsigned char rwa_unlock[] __initdata =
......@@ -596,12 +602,6 @@ static void __init rwa010_init(void)
rwa010_soundblaster_reset();
}
EXPORT_SYMBOL(gpio_lock);
EXPORT_SYMBOL(gpio_modify_op);
EXPORT_SYMBOL(gpio_modify_io);
EXPORT_SYMBOL(cpld_modify);
EXPORT_SYMBOL(gpio_read);
/*
* Initialise any other hardware after we've got the PCI bus
* initialised. We may need the PCI bus to talk to this other
......@@ -616,9 +616,9 @@ static int __init nw_hw_init(void)
cpld_init();
rwa010_init();
spin_lock_irqsave(&gpio_lock, flags);
gpio_modify_op(GPIO_RED_LED|GPIO_GREEN_LED, DEFAULT_LEDS);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(GPIO_RED_LED|GPIO_GREEN_LED, DEFAULT_LEDS);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
return 0;
}
......
......@@ -32,7 +32,6 @@ static char led_state;
static char hw_led_state;
static DEFINE_SPINLOCK(leds_lock);
extern spinlock_t gpio_lock;
static void netwinder_leds_event(led_event_t evt)
{
......@@ -121,9 +120,9 @@ static void netwinder_leds_event(led_event_t evt)
spin_unlock_irqrestore(&leds_lock, flags);
if (led_state & LED_STATE_ENABLED) {
spin_lock_irqsave(&gpio_lock, flags);
gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(GPIO_RED_LED | GPIO_GREEN_LED, hw_led_state);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
}
......
......@@ -4,6 +4,7 @@
* Personal server (Skiff) machine fixup
*/
#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/hardware/dec21285.h>
#include <asm/mach-types.h>
......
......@@ -43,52 +43,51 @@ static const char *fan_state[] = { "off", "on", "on (hardwired)" };
* chance that the WaveArtist driver could touch these bits to
* enable or disable the speaker.
*/
extern spinlock_t gpio_lock;
extern unsigned int system_rev;
static inline void netwinder_ds1620_set_clk(int clk)
{
gpio_modify_op(GPIO_DSCLK, clk ? GPIO_DSCLK : 0);
nw_gpio_modify_op(GPIO_DSCLK, clk ? GPIO_DSCLK : 0);
}
static inline void netwinder_ds1620_set_data(int dat)
{
gpio_modify_op(GPIO_DATA, dat ? GPIO_DATA : 0);
nw_gpio_modify_op(GPIO_DATA, dat ? GPIO_DATA : 0);
}
static inline int netwinder_ds1620_get_data(void)
{
return gpio_read() & GPIO_DATA;
return nw_gpio_read() & GPIO_DATA;
}
static inline void netwinder_ds1620_set_data_dir(int dir)
{
gpio_modify_io(GPIO_DATA, dir ? GPIO_DATA : 0);
nw_gpio_modify_io(GPIO_DATA, dir ? GPIO_DATA : 0);
}
static inline void netwinder_ds1620_reset(void)
{
cpld_modify(CPLD_DS_ENABLE, 0);
cpld_modify(CPLD_DS_ENABLE, CPLD_DS_ENABLE);
nw_cpld_modify(CPLD_DS_ENABLE, 0);
nw_cpld_modify(CPLD_DS_ENABLE, CPLD_DS_ENABLE);
}
static inline void netwinder_lock(unsigned long *flags)
{
spin_lock_irqsave(&gpio_lock, *flags);
spin_lock_irqsave(&nw_gpio_lock, *flags);
}
static inline void netwinder_unlock(unsigned long *flags)
{
spin_unlock_irqrestore(&gpio_lock, *flags);
spin_unlock_irqrestore(&nw_gpio_lock, *flags);
}
static inline void netwinder_set_fan(int i)
{
unsigned long flags;
spin_lock_irqsave(&gpio_lock, flags);
gpio_modify_op(GPIO_FAN, i ? GPIO_FAN : 0);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_gpio_modify_op(GPIO_FAN, i ? GPIO_FAN : 0);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
static inline int netwinder_get_fan(void)
......@@ -96,7 +95,7 @@ static inline int netwinder_get_fan(void)
if ((system_rev & 0xf000) == 0x4000)
return FAN_ALWAYS_ON;
return (gpio_read() & GPIO_FAN) ? FAN_ON : FAN_OFF;
return (nw_gpio_read() & GPIO_FAN) ? FAN_ON : FAN_OFF;
}
/*
......
......@@ -58,8 +58,6 @@ static volatile unsigned char *FLASH_BASE;
static int gbFlashSize = KFLASH_SIZE;
static DEFINE_MUTEX(nwflash_mutex);
extern spinlock_t gpio_lock;
static int get_flash_id(void)
{
volatile unsigned int c1, c2;
......@@ -616,9 +614,9 @@ static void kick_open(void)
* we want to write a bit pattern XXX1 to Xilinx to enable
* the write gate, which will be open for about the next 2ms.
*/
spin_lock_irqsave(&gpio_lock, flags);
cpld_modify(1, 1);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
/*
* let the ISA bus to catch on...
......
......@@ -32,16 +32,15 @@ static struct mtd_info *dc21285_mtd;
*/
static void nw_en_write(void)
{
extern spinlock_t gpio_lock;
unsigned long flags;
/*
* we want to write a bit pattern XXX1 to Xilinx to enable
* the write gate, which will be open for about the next 2ms.
*/
spin_lock_irqsave(&gpio_lock, flags);
cpld_modify(1, 1);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_cpld_modify(CPLD_FLASH_WR_ENABLE, CPLD_FLASH_WR_ENABLE);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
/*
* let the ISA bus to catch on...
......
......@@ -1483,16 +1483,14 @@ static void __exit unload_waveartist(struct address_info *hw)
#define VNC_HANDSET_DETECT 0x40
#define VNC_DISABLE_AUTOSWITCH 0x80
extern spinlock_t gpio_lock;
static inline void
vnc_mute_spkr(wavnc_info *devc)
{
unsigned long flags;
spin_lock_irqsave(&gpio_lock, flags);
cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE);
spin_unlock_irqrestore(&gpio_lock, flags);
spin_lock_irqsave(&nw_gpio_lock, flags);
nw_cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE);
spin_unlock_irqrestore(&nw_gpio_lock, flags);
}
static void
......
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