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Merge branch 'for_3.1/gpio-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into gpio/next

hifive-unleashed-5.1
Grant Likely 2011-06-16 13:31:42 -06:00
parent 2bc7c85210 e5ff4440cf
commit 8e46ea3ec8
6 changed files with 286 additions and 574 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/mach-omap1/gpio15xx.c
View File

@ -34,11 +34,22 @@ static struct __initdata resource omap15xx_mpu_gpio_resources[] = {
},
};
static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
.revision = USHRT_MAX,
.direction = OMAP_MPUIO_IO_CNTL,
.datain = OMAP_MPUIO_INPUT_LATCH,
.dataout = OMAP_MPUIO_OUTPUT,
.irqstatus = OMAP_MPUIO_GPIO_INT,
.irqenable = OMAP_MPUIO_GPIO_MASKIT,
.irqenable_inv = true,
};
static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {
.virtual_irq_start = IH_MPUIO_BASE,
.bank_type = METHOD_MPUIO,
.bank_width = 16,
.bank_stride = 1,
.regs = &omap15xx_mpuio_regs,
};
static struct __initdata platform_device omap15xx_mpu_gpio = {
@ -64,10 +75,21 @@ static struct __initdata resource omap15xx_gpio_resources[] = {
},
};
static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
.revision = USHRT_MAX,
.direction = OMAP1510_GPIO_DIR_CONTROL,
.datain = OMAP1510_GPIO_DATA_INPUT,
.dataout = OMAP1510_GPIO_DATA_OUTPUT,
.irqstatus = OMAP1510_GPIO_INT_STATUS,
.irqenable = OMAP1510_GPIO_INT_MASK,
.irqenable_inv = true,
};
static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = {
.virtual_irq_start = IH_GPIO_BASE,
.bank_type = METHOD_GPIO_1510,
.bank_width = 16,
.regs = &omap15xx_gpio_regs,
};
static struct __initdata platform_device omap15xx_gpio = {

28
arch/arm/mach-omap1/gpio16xx.c
View File

@ -37,11 +37,22 @@ static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
},
};
static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
.revision = USHRT_MAX,
.direction = OMAP_MPUIO_IO_CNTL,
.datain = OMAP_MPUIO_INPUT_LATCH,
.dataout = OMAP_MPUIO_OUTPUT,
.irqstatus = OMAP_MPUIO_GPIO_INT,
.irqenable = OMAP_MPUIO_GPIO_MASKIT,
.irqenable_inv = true,
};
static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
.virtual_irq_start = IH_MPUIO_BASE,
.bank_type = METHOD_MPUIO,
.bank_width = 16,
.bank_stride = 1,
.regs = &omap16xx_mpuio_regs,
};
static struct __initdata platform_device omap16xx_mpu_gpio = {
@ -67,10 +78,24 @@ static struct __initdata resource omap16xx_gpio1_resources[] = {
},
};
static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
.revision = OMAP1610_GPIO_REVISION,
.direction = OMAP1610_GPIO_DIRECTION,
.set_dataout = OMAP1610_GPIO_SET_DATAOUT,
.clr_dataout = OMAP1610_GPIO_CLEAR_DATAOUT,
.datain = OMAP1610_GPIO_DATAIN,
.dataout = OMAP1610_GPIO_DATAOUT,
.irqstatus = OMAP1610_GPIO_IRQSTATUS1,
.irqenable = OMAP1610_GPIO_IRQENABLE1,
.set_irqenable = OMAP1610_GPIO_SET_IRQENABLE1,
.clr_irqenable = OMAP1610_GPIO_CLEAR_IRQENABLE1,
};
static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
.virtual_irq_start = IH_GPIO_BASE,
.bank_type = METHOD_GPIO_1610,
.bank_width = 16,
.regs = &omap16xx_gpio_regs,
};
static struct __initdata platform_device omap16xx_gpio1 = {
@ -100,6 +125,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = {
.virtual_irq_start = IH_GPIO_BASE + 16,
.bank_type = METHOD_GPIO_1610,
.bank_width = 16,
.regs = &omap16xx_gpio_regs,
};
static struct __initdata platform_device omap16xx_gpio2 = {
@ -129,6 +155,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = {
.virtual_irq_start = IH_GPIO_BASE + 32,
.bank_type = METHOD_GPIO_1610,
.bank_width = 16,
.regs = &omap16xx_gpio_regs,
};
static struct __initdata platform_device omap16xx_gpio3 = {
@ -158,6 +185,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = {
.virtual_irq_start = IH_GPIO_BASE + 48,
.bank_type = METHOD_GPIO_1610,
.bank_width = 16,
.regs = &omap16xx_gpio_regs,
};
static struct __initdata platform_device omap16xx_gpio4 = {

27
arch/arm/mach-omap1/gpio7xx.c
View File

@ -39,11 +39,22 @@ static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
},
};
static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
.revision = USHRT_MAX,
.direction = OMAP_MPUIO_IO_CNTL / 2,
.datain = OMAP_MPUIO_INPUT_LATCH / 2,
.dataout = OMAP_MPUIO_OUTPUT / 2,
.irqstatus = OMAP_MPUIO_GPIO_INT / 2,
.irqenable = OMAP_MPUIO_GPIO_MASKIT / 2,
.irqenable_inv = true,
};
static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
.virtual_irq_start = IH_MPUIO_BASE,
.bank_type = METHOD_MPUIO,
.bank_width = 32,
.bank_stride = 2,
.regs = &omap7xx_mpuio_regs,
};
static struct __initdata platform_device omap7xx_mpu_gpio = {
@ -69,10 +80,21 @@ static struct __initdata resource omap7xx_gpio1_resources[] = {
},
};
static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
.revision = USHRT_MAX,
.direction = OMAP7XX_GPIO_DIR_CONTROL,
.datain = OMAP7XX_GPIO_DATA_INPUT,
.dataout = OMAP7XX_GPIO_DATA_OUTPUT,
.irqstatus = OMAP7XX_GPIO_INT_STATUS,
.irqenable = OMAP7XX_GPIO_INT_MASK,
.irqenable_inv = true,
};
static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
.virtual_irq_start = IH_GPIO_BASE,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio1 = {
@ -102,6 +124,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
.virtual_irq_start = IH_GPIO_BASE + 32,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio2 = {
@ -131,6 +154,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
.virtual_irq_start = IH_GPIO_BASE + 64,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio3 = {
@ -160,6 +184,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
.virtual_irq_start = IH_GPIO_BASE + 96,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio4 = {
@ -189,6 +214,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
.virtual_irq_start = IH_GPIO_BASE + 128,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio5 = {
@ -218,6 +244,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
.virtual_irq_start = IH_GPIO_BASE + 160,
.bank_type = METHOD_GPIO_7XX,
.bank_width = 32,
.regs = &omap7xx_gpio_regs,
};
static struct __initdata platform_device omap7xx_gpio6 = {

32
arch/arm/mach-omap2/gpio.c
View File

@ -61,13 +61,45 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
pdata->dbck_flag = dev_attr->dbck_flag;
pdata->virtual_irq_start = IH_GPIO_BASE + 32 * (id - 1);
pdata->regs = kzalloc(sizeof(struct omap_gpio_reg_offs), GFP_KERNEL);
if (!pdata) {
pr_err("gpio%d: Memory allocation failed\n", id);
return -ENOMEM;
}
switch (oh->class->rev) {
case 0:
case 1:
pdata->bank_type = METHOD_GPIO_24XX;
pdata->regs->revision = OMAP24XX_GPIO_REVISION;
pdata->regs->direction = OMAP24XX_GPIO_OE;
pdata->regs->datain = OMAP24XX_GPIO_DATAIN;
pdata->regs->dataout = OMAP24XX_GPIO_DATAOUT;
pdata->regs->set_dataout = OMAP24XX_GPIO_SETDATAOUT;
pdata->regs->clr_dataout = OMAP24XX_GPIO_CLEARDATAOUT;
pdata->regs->irqstatus = OMAP24XX_GPIO_IRQSTATUS1;
pdata->regs->irqstatus2 = OMAP24XX_GPIO_IRQSTATUS2;
pdata->regs->irqenable = OMAP24XX_GPIO_IRQENABLE1;
pdata->regs->set_irqenable = OMAP24XX_GPIO_SETIRQENABLE1;
pdata->regs->clr_irqenable = OMAP24XX_GPIO_CLEARIRQENABLE1;
pdata->regs->debounce = OMAP24XX_GPIO_DEBOUNCE_VAL;
pdata->regs->debounce_en = OMAP24XX_GPIO_DEBOUNCE_EN;
break;
case 2:
pdata->bank_type = METHOD_GPIO_44XX;
pdata->regs->revision = OMAP4_GPIO_REVISION;
pdata->regs->direction = OMAP4_GPIO_OE;
pdata->regs->datain = OMAP4_GPIO_DATAIN;
pdata->regs->dataout = OMAP4_GPIO_DATAOUT;
pdata->regs->set_dataout = OMAP4_GPIO_SETDATAOUT;
pdata->regs->clr_dataout = OMAP4_GPIO_CLEARDATAOUT;
pdata->regs->irqstatus = OMAP4_GPIO_IRQSTATUS0;
pdata->regs->irqstatus2 = OMAP4_GPIO_IRQSTATUS1;
pdata->regs->irqenable = OMAP4_GPIO_IRQSTATUSSET0;
pdata->regs->set_irqenable = OMAP4_GPIO_IRQSTATUSSET0;
pdata->regs->clr_irqenable = OMAP4_GPIO_IRQSTATUSCLR0;
pdata->regs->debounce = OMAP4_GPIO_DEBOUNCINGTIME;
pdata->regs->debounce_en = OMAP4_GPIO_DEBOUNCENABLE;
break;
default:
WARN(1, "Invalid gpio bank_type\n");

20
arch/arm/plat-omap/include/plat/gpio.h
View File

@ -174,12 +174,32 @@ struct omap_gpio_dev_attr {
bool dbck_flag; /* dbck required or not - True for OMAP3&4 */
};
struct omap_gpio_reg_offs {
u16 revision;
u16 direction;
u16 datain;
u16 dataout;
u16 set_dataout;
u16 clr_dataout;
u16 irqstatus;
u16 irqstatus2;
u16 irqenable;
u16 set_irqenable;
u16 clr_irqenable;
u16 debounce;
u16 debounce_en;
bool irqenable_inv;
};
struct omap_gpio_platform_data {
u16 virtual_irq_start;
int bank_type;
int bank_width; /* GPIO bank width */
int bank_stride; /* Only needed for omap1 MPUIO */
bool dbck_flag; /* dbck required or not - True for OMAP3&4 */
struct omap_gpio_reg_offs *regs;
};
/* TODO: Analyze removing gpio_bank_count usage from driver code */

731
drivers/gpio/gpio-omap.c
View File

@ -54,6 +54,11 @@ struct gpio_bank {
struct device *dev;
bool dbck_flag;
int stride;
u32 width;
void (*set_dataout)(struct gpio_bank *bank, int gpio, int enable);
struct omap_gpio_reg_offs *regs;
};
#ifdef CONFIG_ARCH_OMAP3
@ -79,121 +84,18 @@ static struct omap3_gpio_regs gpio_context[OMAP34XX_NR_GPIOS];
*/
static struct gpio_bank *gpio_bank;
static int bank_width;
/* TODO: Analyze removing gpio_bank_count usage from driver code */
int gpio_bank_count;
static inline struct gpio_bank *get_gpio_bank(int gpio)
{
if (cpu_is_omap15xx()) {
if (OMAP_GPIO_IS_MPUIO(gpio))
return &gpio_bank[0];
return &gpio_bank[1];
}
if (cpu_is_omap16xx()) {
if (OMAP_GPIO_IS_MPUIO(gpio))
return &gpio_bank[0];
return &gpio_bank[1 + (gpio >> 4)];
}
if (cpu_is_omap7xx()) {
if (OMAP_GPIO_IS_MPUIO(gpio))
return &gpio_bank[0];
return &gpio_bank[1 + (gpio >> 5)];
}
if (cpu_is_omap24xx())
return &gpio_bank[gpio >> 5];
if (cpu_is_omap34xx() || cpu_is_omap44xx())
return &gpio_bank[gpio >> 5];
BUG();
return NULL;
}
static inline int get_gpio_index(int gpio)
{
if (cpu_is_omap7xx())
return gpio & 0x1f;
if (cpu_is_omap24xx())
return gpio & 0x1f;
if (cpu_is_omap34xx() || cpu_is_omap44xx())
return gpio & 0x1f;
return gpio & 0x0f;
}
static inline int gpio_valid(int gpio)
{
if (gpio < 0)
return -1;
if (cpu_class_is_omap1() && OMAP_GPIO_IS_MPUIO(gpio)) {
if (gpio >= OMAP_MAX_GPIO_LINES + 16)
return -1;
return 0;
}
if (cpu_is_omap15xx() && gpio < 16)
return 0;
if ((cpu_is_omap16xx()) && gpio < 64)
return 0;
if (cpu_is_omap7xx() && gpio < 192)
return 0;
if (cpu_is_omap2420() && gpio < 128)
return 0;
if (cpu_is_omap2430() && gpio < 160)
return 0;
if ((cpu_is_omap34xx() || cpu_is_omap44xx()) && gpio < 192)
return 0;
return -1;
}
static int check_gpio(int gpio)
{
if (unlikely(gpio_valid(gpio) < 0)) {
printk(KERN_ERR "omap-gpio: invalid GPIO %d\n", gpio);
dump_stack();
return -1;
}
return 0;
}
#define GPIO_INDEX(bank, gpio) (gpio % bank->width)
#define GPIO_BIT(bank, gpio) (1 << GPIO_INDEX(bank, gpio))
static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
{
void __iomem *reg = bank->base;
u32 l;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_IO_CNTL / bank->stride;
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_DIR_CONTROL;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_DIRECTION;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_DIR_CONTROL;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_OE;
break;
#endif
#if defined(CONFIG_ARCH_OMAP4)
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_OE;
break;
#endif
default:
WARN_ON(1);
return;
}
reg += bank->regs->direction;
l = __raw_readl(reg);
if (is_input)
l |= 1 << gpio;
@ -202,165 +104,48 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
__raw_writel(l, reg);
}
static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
/* set data out value using dedicate set/clear register */
static void _set_gpio_dataout_reg(struct gpio_bank *bank, int gpio, int enable)
{
void __iomem *reg = bank->base;
u32 l = 0;
u32 l = GPIO_BIT(bank, gpio);
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_OUTPUT / bank->stride;
l = __raw_readl(reg);
if (enable)
l |= 1 << gpio;
else
l &= ~(1 << gpio);
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_DATA_OUTPUT;
l = __raw_readl(reg);
if (enable)
l |= 1 << gpio;
else
l &= ~(1 << gpio);
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
if (enable)
reg += OMAP1610_GPIO_SET_DATAOUT;
else
reg += OMAP1610_GPIO_CLEAR_DATAOUT;
l = 1 << gpio;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_DATA_OUTPUT;
l = __raw_readl(reg);
if (enable)
l |= 1 << gpio;
else
l &= ~(1 << gpio);
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
if (enable)
reg += OMAP24XX_GPIO_SETDATAOUT;
else
reg += OMAP24XX_GPIO_CLEARDATAOUT;
l = 1 << gpio;
break;
#endif
#ifdef CONFIG_ARCH_OMAP4
case METHOD_GPIO_44XX:
if (enable)
reg += OMAP4_GPIO_SETDATAOUT;
else
reg += OMAP4_GPIO_CLEARDATAOUT;
l = 1 << gpio;
break;
#endif
default:
WARN_ON(1);
return;
}
if (enable)
reg += bank->regs->set_dataout;
else
reg += bank->regs->clr_dataout;
__raw_writel(l, reg);
}
/* set data out value using mask register */
static void _set_gpio_dataout_mask(struct gpio_bank *bank, int gpio, int enable)
{
void __iomem *reg = bank->base + bank->regs->dataout;
u32 gpio_bit = GPIO_BIT(bank, gpio);
u32 l;
l = __raw_readl(reg);
if (enable)
l |= gpio_bit;
else
l &= ~gpio_bit;
__raw_writel(l, reg);
}
static int _get_gpio_datain(struct gpio_bank *bank, int gpio)
{
void __iomem *reg;
void __iomem *reg = bank->base + bank->regs->datain;
if (check_gpio(gpio) < 0)
return -EINVAL;
reg = bank->base;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_INPUT_LATCH / bank->stride;
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_DATA_INPUT;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_DATAIN;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_DATA_INPUT;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_DATAIN;
break;
#endif
#ifdef CONFIG_ARCH_OMAP4
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_DATAIN;
break;
#endif
default:
return -EINVAL;
}
return (__raw_readl(reg)
& (1 << get_gpio_index(gpio))) != 0;
return (__raw_readl(reg) & GPIO_BIT(bank, gpio)) != 0;
}
static int _get_gpio_dataout(struct gpio_bank *bank, int gpio)
{
void __iomem *reg;
void __iomem *reg = bank->base + bank->regs->dataout;
if (check_gpio(gpio) < 0)
return -EINVAL;
reg = bank->base;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_OUTPUT / bank->stride;
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_DATA_OUTPUT;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_DATAOUT;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_DATA_OUTPUT;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_DATAOUT;
break;
#endif
#ifdef CONFIG_ARCH_OMAP4
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_DATAOUT;
break;
#endif
default:
return -EINVAL;
}
return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0;
return (__raw_readl(reg) & GPIO_BIT(bank, gpio)) != 0;
}
#define MOD_REG_BIT(reg, bit_mask, set) \
@ -383,7 +168,7 @@ do { \
static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio,
unsigned debounce)
{
void __iomem *reg = bank->base;
void __iomem *reg;
u32 val;
u32 l;
@ -397,21 +182,12 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio,
else
debounce = (debounce / 0x1f) - 1;
l = 1 << get_gpio_index(gpio);
if (bank->method == METHOD_GPIO_44XX)
reg += OMAP4_GPIO_DEBOUNCINGTIME;
else
reg += OMAP24XX_GPIO_DEBOUNCE_VAL;
l = GPIO_BIT(bank, gpio);
reg = bank->base + bank->regs->debounce;
__raw_writel(debounce, reg);
reg = bank->base;
if (bank->method == METHOD_GPIO_44XX)
reg += OMAP4_GPIO_DEBOUNCENABLE;
else
reg += OMAP24XX_GPIO_DEBOUNCE_EN;
reg = bank->base + bank->regs->debounce_en;
val = __raw_readl(reg);
if (debounce) {
@ -628,9 +404,6 @@ static int gpio_irq_type(struct irq_data *d, unsigned type)
else
gpio = d->irq - IH_GPIO_BASE;
if (check_gpio(gpio) < 0)
return -EINVAL;
if (type & ~IRQ_TYPE_SENSE_MASK)
return -EINVAL;
@ -641,7 +414,7 @@ static int gpio_irq_type(struct irq_data *d, unsigned type)
bank = irq_data_get_irq_chip_data(d);
spin_lock_irqsave(&bank->lock, flags);
retval = _set_gpio_triggering(bank, get_gpio_index(gpio), type);
retval = _set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), type);
spin_unlock_irqrestore(&bank->lock, flags);
if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
@ -656,195 +429,81 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
{
void __iomem *reg = bank->base;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
/* MPUIO irqstatus is reset by reading the status register,
* so do nothing here */
return;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_INT_STATUS;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_IRQSTATUS1;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_INT_STATUS;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_IRQSTATUS1;
break;
#endif
#if defined(CONFIG_ARCH_OMAP4)
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_IRQSTATUS0;
break;
#endif
default:
WARN_ON(1);
return;
}
reg += bank->regs->irqstatus;
__raw_writel(gpio_mask, reg);
/* Workaround for clearing DSP GPIO interrupts to allow retention */
if (cpu_is_omap24xx() || cpu_is_omap34xx())
reg = bank->base + OMAP24XX_GPIO_IRQSTATUS2;
else if (cpu_is_omap44xx())
reg = bank->base + OMAP4_GPIO_IRQSTATUS1;
if (cpu_is_omap24xx() || cpu_is_omap34xx() || cpu_is_omap44xx()) {
if (bank->regs->irqstatus2) {
reg = bank->base + bank->regs->irqstatus2;
__raw_writel(gpio_mask, reg);
}
/* Flush posted write for the irq status to avoid spurious interrupts */
__raw_readl(reg);
}
}
static inline void _clear_gpio_irqstatus(struct gpio_bank *bank, int gpio)
{
_clear_gpio_irqbank(bank, 1 << get_gpio_index(gpio));
_clear_gpio_irqbank(bank, GPIO_BIT(bank, gpio));
}
static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank)
{
void __iomem *reg = bank->base;
int inv = 0;
u32 l;
u32 mask;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride;
mask = 0xffff;
inv = 1;
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_INT_MASK;
mask = 0xffff;
inv = 1;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_IRQENABLE1;
mask = 0xffff;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_INT_MASK;
mask = 0xffffffff;
inv = 1;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_IRQENABLE1;
mask = 0xffffffff;
break;
#endif
#if defined(CONFIG_ARCH_OMAP4)
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_IRQSTATUSSET0;
mask = 0xffffffff;
break;
#endif
default:
WARN_ON(1);
return 0;
}
u32 mask = (1 << bank->width) - 1;
reg += bank->regs->irqenable;
l = __raw_readl(reg);
if (inv)
if (bank->regs->irqenable_inv)
l = ~l;
l &= mask;
return l;
}
static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enable)
static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
{
void __iomem *reg = bank->base;
u32 l;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP1
case METHOD_MPUIO:
reg += OMAP_MPUIO_GPIO_MASKIT / bank->stride;
if (bank->regs->set_irqenable) {
reg += bank->regs->set_irqenable;
l = gpio_mask;
} else {
reg += bank->regs->irqenable;
l = __raw_readl(reg);
if (enable)
l &= ~(gpio_mask);
if (bank->regs->irqenable_inv)
l &= ~gpio_mask;
else
l |= gpio_mask;
break;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_INT_MASK;
l = __raw_readl(reg);
if (enable)
l &= ~(gpio_mask);
else
l |= gpio_mask;
break;
#endif
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_GPIO_1610:
if (enable)
reg += OMAP1610_GPIO_SET_IRQENABLE1;
else
reg += OMAP1610_GPIO_CLEAR_IRQENABLE1;
l = gpio_mask;
break;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_INT_MASK;
l = __raw_readl(reg);
if (enable)
l &= ~(gpio_mask);
else
l |= gpio_mask;
break;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
case METHOD_GPIO_24XX:
if (enable)
reg += OMAP24XX_GPIO_SETIRQENABLE1;
else
reg += OMAP24XX_GPIO_CLEARIRQENABLE1;
l = gpio_mask;
break;
#endif
#ifdef CONFIG_ARCH_OMAP4
case METHOD_GPIO_44XX:
if (enable)
reg += OMAP4_GPIO_IRQSTATUSSET0;
else
reg += OMAP4_GPIO_IRQSTATUSCLR0;
l = gpio_mask;
break;
#endif
default:
WARN_ON(1);
return;
}
__raw_writel(l, reg);
}
static void _disable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
{
void __iomem *reg = bank->base;
u32 l;
if (bank->regs->clr_irqenable) {
reg += bank->regs->clr_irqenable;
l = gpio_mask;
} else {
reg += bank->regs->irqenable;
l = __raw_readl(reg);
if (bank->regs->irqenable_inv)
l |= gpio_mask;
else
l &= ~gpio_mask;
}
__raw_writel(l, reg);
}
static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int enable)
{
_enable_gpio_irqbank(bank, 1 << get_gpio_index(gpio), enable);
_enable_gpio_irqbank(bank, GPIO_BIT(bank, gpio));
}
/*
@ -857,50 +516,32 @@ static inline void _set_gpio_irqenable(struct gpio_bank *bank, int gpio, int ena
*/
static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
{
unsigned long uninitialized_var(flags);
u32 gpio_bit = GPIO_BIT(bank, gpio);
unsigned long flags;
switch (bank->method) {
#ifdef CONFIG_ARCH_OMAP16XX
case METHOD_MPUIO:
case METHOD_GPIO_1610:
spin_lock_irqsave(&bank->lock, flags);
if (enable)
bank->suspend_wakeup |= (1 << gpio);
else
bank->suspend_wakeup &= ~(1 << gpio);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
#endif
#ifdef CONFIG_ARCH_OMAP2PLUS
case METHOD_GPIO_24XX:
case METHOD_GPIO_44XX:
if (bank->non_wakeup_gpios & (1 << gpio)) {
printk(KERN_ERR "Unable to modify wakeup on "
"non-wakeup GPIO%d\n",
(bank - gpio_bank) * 32 + gpio);
return -EINVAL;
}
spin_lock_irqsave(&bank->lock, flags);
if (enable)
bank->suspend_wakeup |= (1 << gpio);
else
bank->suspend_wakeup &= ~(1 << gpio);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
#endif
default:
printk(KERN_ERR "Can't enable GPIO wakeup for method %i\n",
bank->method);
if (bank->non_wakeup_gpios & gpio_bit) {
dev_err(bank->dev,
"Unable to modify wakeup on non-wakeup GPIO%d\n", gpio);
return -EINVAL;
}
spin_lock_irqsave(&bank->lock, flags);
if (enable)
bank->suspend_wakeup |= gpio_bit;
else
bank->suspend_wakeup &= ~gpio_bit;
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
}
static void _reset_gpio(struct gpio_bank *bank, int gpio)
{
_set_gpio_direction(bank, get_gpio_index(gpio), 1);
_set_gpio_direction(bank, GPIO_INDEX(bank, gpio), 1);
_set_gpio_irqenable(bank, gpio, 0);
_clear_gpio_irqstatus(bank, gpio);
_set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), IRQ_TYPE_NONE);
}
/* Use disable_irq_wake() and enable_irq_wake() functions from drivers */
@ -910,10 +551,8 @@ static int gpio_wake_enable(struct irq_data *d, unsigned int enable)
struct gpio_bank *bank;
int retval;
if (check_gpio(gpio) < 0)
return -ENODEV;
bank = irq_data_get_irq_chip_data(d);
retval = _set_gpio_wakeup(bank, get_gpio_index(gpio), enable);
retval = _set_gpio_wakeup(bank, gpio, enable);
return retval;
}
@ -1029,31 +668,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
chained_irq_enter(chip, desc);
bank = irq_get_handler_data(irq);
#ifdef CONFIG_ARCH_OMAP1
if (bank->method == METHOD_MPUIO)
isr_reg = bank->base +
OMAP_MPUIO_GPIO_INT / bank->stride;
#endif
#ifdef CONFIG_ARCH_OMAP15XX
if (bank->method == METHOD_GPIO_1510)
isr_reg = bank->base + OMAP1510_GPIO_INT_STATUS;
#endif
#if defined(CONFIG_ARCH_OMAP16XX)
if (bank->method == METHOD_GPIO_1610)
isr_reg = bank->base + OMAP1610_GPIO_IRQSTATUS1;
#endif
#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
if (bank->method == METHOD_GPIO_7XX)
isr_reg = bank->base + OMAP7XX_GPIO_INT_STATUS;
#endif
#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
if (bank->method == METHOD_GPIO_24XX)
isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1;
#endif
#if defined(CONFIG_ARCH_OMAP4)
if (bank->method == METHOD_GPIO_44XX)
isr_reg = bank->base + OMAP4_GPIO_IRQSTATUS0;
#endif
isr_reg = bank->base + bank->regs->irqstatus;
if (WARN_ON(!isr_reg))
goto exit;
@ -1075,9 +690,9 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
/* clear edge sensitive interrupts before handler(s) are
called so that we don't miss any interrupt occurred while
executing them */
_enable_gpio_irqbank(bank, isr_saved & ~level_mask, 0);
_disable_gpio_irqbank(bank, isr_saved & ~level_mask);
_clear_gpio_irqbank(bank, isr_saved & ~level_mask);
_enable_gpio_irqbank(bank, isr_saved & ~level_mask, 1);
_enable_gpio_irqbank(bank, isr_saved & ~level_mask);
/* if there is only edge sensitive GPIO pin interrupts
configured, we could unmask GPIO bank interrupt immediately */
@ -1093,7 +708,7 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
gpio_irq = bank->virtual_irq_start;
for (; isr != 0; isr >>= 1, gpio_irq++) {
gpio_index = get_gpio_index(irq_to_gpio(gpio_irq));
gpio_index = GPIO_INDEX(bank, irq_to_gpio(gpio_irq));
if (!(isr & 1))
continue;
@ -1149,7 +764,7 @@ static void gpio_mask_irq(struct irq_data *d)
spin_lock_irqsave(&bank->lock, flags);
_set_gpio_irqenable(bank, gpio, 0);
_set_gpio_triggering(bank, get_gpio_index(gpio), IRQ_TYPE_NONE);
_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), IRQ_TYPE_NONE);
spin_unlock_irqrestore(&bank->lock, flags);
}
@ -1157,13 +772,13 @@ static void gpio_unmask_irq(struct irq_data *d)
{
unsigned int gpio = d->irq - IH_GPIO_BASE;
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
unsigned int irq_mask = 1 << get_gpio_index(gpio);
unsigned int irq_mask = GPIO_BIT(bank, gpio);
u32 trigger = irqd_get_trigger_type(d);
unsigned long flags;
spin_lock_irqsave(&bank->lock, flags);
if (trigger)
_set_gpio_triggering(bank, get_gpio_index(gpio), trigger);
_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), trigger);
/* For level-triggered GPIOs, the clearing must be done after
* the HW source is cleared, thus after the handler has run */
@ -1190,45 +805,8 @@ static struct irq_chip gpio_irq_chip = {
#ifdef CONFIG_ARCH_OMAP1
/* MPUIO uses the always-on 32k clock */
static void mpuio_ack_irq(struct irq_data *d)
{
/* The ISR is reset automatically, so do nothing here. */
}
static void mpuio_mask_irq(struct irq_data *d)
{
unsigned int gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
_set_gpio_irqenable(bank, gpio, 0);
}
static void mpuio_unmask_irq(struct irq_data *d)
{
unsigned int gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
_set_gpio_irqenable(bank, gpio, 1);
}
static struct irq_chip mpuio_irq_chip = {
.name = "MPUIO",
.irq_ack = mpuio_ack_irq,
.irq_mask = mpuio_mask_irq,
.irq_unmask = mpuio_unmask_irq,
.irq_set_type = gpio_irq_type,
#ifdef CONFIG_ARCH_OMAP16XX
/* REVISIT: assuming only 16xx supports MPUIO wake events */
.irq_set_wake = gpio_wake_enable,
#endif
};
#define bank_is_mpuio(bank) ((bank)->method == METHOD_MPUIO)
#ifdef CONFIG_ARCH_OMAP16XX
#include <linux/platform_device.h>
@ -1288,7 +866,7 @@ static struct platform_device omap_mpuio_device = {
static inline void mpuio_init(void)
{
struct gpio_bank *bank = get_gpio_bank(OMAP_MPUIO(0));
struct gpio_bank *bank = &gpio_bank[0];
platform_set_drvdata(&omap_mpuio_device, bank);
if (platform_driver_register(&omap_mpuio_driver) == 0)
@ -1301,8 +879,6 @@ static inline void mpuio_init(void) {}
#else
extern struct irq_chip mpuio_irq_chip;
#define bank_is_mpuio(bank) 0
static inline void mpuio_init(void) {}
@ -1328,31 +904,8 @@ static int gpio_input(struct gpio_chip *chip, unsigned offset)
static int gpio_is_input(struct gpio_bank *bank, int mask)
{
void __iomem *reg = bank->base;
void __iomem *reg = bank->base + bank->regs->direction;
switch (bank->method) {
case METHOD_MPUIO:
reg += OMAP_MPUIO_IO_CNTL / bank->stride;
break;
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_DIR_CONTROL;
break;
case METHOD_GPIO_1610:
reg += OMAP1610_GPIO_DIRECTION;
break;
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_DIR_CONTROL;
break;
case METHOD_GPIO_24XX:
reg += OMAP24XX_GPIO_OE;
break;
case METHOD_GPIO_44XX:
reg += OMAP4_GPIO_OE;
break;
default:
WARN_ONCE(1, "gpio_is_input: incorrect OMAP GPIO method");
return -EINVAL;
}
return __raw_readl(reg) & mask;
}
@ -1364,9 +917,9 @@ static int gpio_get(struct gpio_chip *chip, unsigned offset)
u32 mask;
gpio = chip->base + offset;
bank = get_gpio_bank(gpio);
bank = container_of(chip, struct gpio_bank, chip);
reg = bank->base;
mask = 1 << get_gpio_index(gpio);
mask = GPIO_BIT(bank, gpio);
if (gpio_is_input(bank, mask))
return _get_gpio_datain(bank, gpio);
@ -1381,7 +934,7 @@ static int gpio_output(struct gpio_chip *chip, unsigned offset, int value)
bank = container_of(chip, struct gpio_bank, chip);
spin_lock_irqsave(&bank->lock, flags);
_set_gpio_dataout(bank, offset, value);
bank->set_dataout(bank, offset, value);
_set_gpio_direction(bank, offset, 0);
spin_unlock_irqrestore(&bank->lock, flags);
return 0;
@ -1415,7 +968,7 @@ static void gpio_set(struct gpio_chip *chip, unsigned offset, int value)
bank = container_of(chip, struct gpio_bank, chip);
spin_lock_irqsave(&bank->lock, flags);
_set_gpio_dataout(bank, offset, value);
bank->set_dataout(bank, offset, value);
spin_unlock_irqrestore(&bank->lock, flags);
}
@ -1431,19 +984,17 @@ static int gpio_2irq(struct gpio_chip *chip, unsigned offset)
static void __init omap_gpio_show_rev(struct gpio_bank *bank)
{
static bool called;
u32 rev;
if (cpu_is_omap16xx() && !(bank->method != METHOD_MPUIO))
rev = __raw_readw(bank->base + OMAP1610_GPIO_REVISION);
else if (cpu_is_omap24xx() || cpu_is_omap34xx())
rev = __raw_readl(bank->base + OMAP24XX_GPIO_REVISION);
else if (cpu_is_omap44xx())
rev = __raw_readl(bank->base + OMAP4_GPIO_REVISION);
else
if (called || bank->regs->revision == USHRT_MAX)
return;
printk(KERN_INFO "OMAP GPIO hardware version %d.%d\n",
rev = __raw_readw(bank->base + bank->regs->revision);
pr_info("OMAP GPIO hardware version %d.%d\n",
(rev >> 4) & 0x0f, rev & 0x0f);
called = true;
}
/* This lock class tells lockdep that GPIO irqs are in a different
@ -1525,6 +1076,30 @@ static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
}
}
static __init void
omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start,
unsigned int num)
{
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
gc = irq_alloc_generic_chip("MPUIO", 1, irq_start, bank->base,
handle_simple_irq);
ct = gc->chip_types;
/* NOTE: No ack required, reading IRQ status clears it. */
ct->chip.irq_mask = irq_gc_mask_set_bit;
ct->chip.irq_unmask = irq_gc_mask_clr_bit;
ct->chip.irq_set_type = gpio_irq_type;
/* REVISIT: assuming only 16xx supports MPUIO wake events */
if (cpu_is_omap16xx())
ct->chip.irq_set_wake = gpio_wake_enable,
ct->regs.mask = OMAP_MPUIO_GPIO_INT / bank->stride;
irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
}
static void __devinit omap_gpio_chip_init(struct gpio_bank *bank)
{
int j;
@ -1552,22 +1127,23 @@ static void __devinit omap_gpio_chip_init(struct gpio_bank *bank)
} else {
bank->chip.label = "gpio";
bank->chip.base = gpio;
gpio += bank_width;
gpio += bank->width;
}
bank->chip.ngpio = bank_width;
bank->chip.ngpio = bank->width;
gpiochip_add(&bank->chip);
for (j = bank->virtual_irq_start;
j < bank->virtual_irq_start + bank_width; j++) {
j < bank->virtual_irq_start + bank->width; j++) {
irq_set_lockdep_class(j, &gpio_lock_class);
irq_set_chip_data(j, bank);
if (bank_is_mpuio(bank))
irq_set_chip(j, &mpuio_irq_chip);
else
if (bank_is_mpuio(bank)) {
omap_mpuio_alloc_gc(bank, j, bank->width);
} else {
irq_set_chip(j, &gpio_irq_chip);
irq_set_handler(j, handle_simple_irq);
set_irq_flags(j, IRQF_VALID);
irq_set_handler(j, handle_simple_irq);
set_irq_flags(j, IRQF_VALID);
}
}
irq_set_chained_handler(bank->irq, gpio_irq_handler);
irq_set_handler_data(bank->irq, bank);
@ -1609,7 +1185,14 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev)
bank->dev = &pdev->dev;
bank->dbck_flag = pdata->dbck_flag;
bank->stride = pdata->bank_stride;
bank_width = pdata->bank_width;
bank->width = pdata->bank_width;
bank->regs = pdata->regs;
if (bank->regs->set_dataout && bank->regs->clr_dataout)
bank->set_dataout = _set_gpio_dataout_reg;
else
bank->set_dataout = _set_gpio_dataout_mask;
spin_lock_init(&bank->lock);