Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history 
yaml
---
r: 373244
b: refs/heads/master
c: 230f13a
h: refs/heads/master
v: v3
  • Loading branch information
Jean-Nicolas Graux authored and Samuel Ortiz committed Apr 9, 2013
1 parent f848eac commit 1f0e3fc
Show file tree
Hide file tree
Showing 6 changed files with 151 additions and 2 deletions.
2 changes: 1 addition & 1 deletion [refs]
View file
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e65ad41e3b3f28316565ad0061b8152a3a8227ba
refs/heads/master: 230f13a5035fd4725a6623af83953623fd51173a
1 change: 1 addition & 0 deletions trunk/drivers/mfd/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -393,6 +393,7 @@ config MFD_STMPE

STMPE811: GPIO, Touchscreen
STMPE1601: GPIO, Keypad
STMPE1801: GPIO, Keypad
STMPE2401: GPIO, Keypad
STMPE2403: GPIO, Keypad

Expand Down
1 change: 1 addition & 0 deletions trunk/drivers/mfd/stmpe-i2c.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,7 @@ static const struct i2c_device_id stmpe_i2c_id[] = {
{ "stmpe801", STMPE801 },
{ "stmpe811", STMPE811 },
{ "stmpe1601", STMPE1601 },
{ "stmpe1801", STMPE1801 },
{ "stmpe2401", STMPE2401 },
{ "stmpe2403", STMPE2403 },
{ }
Expand Down
97 changes: 96 additions & 1 deletion trunk/drivers/mfd/stmpe.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
#include <linux/pm.h>
#include <linux/slab.h>
#include <linux/mfd/core.h>
#include <linux/delay.h>
#include "stmpe.h"

static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks)
Expand Down Expand Up @@ -642,6 +643,88 @@ static struct stmpe_variant_info stmpe1601 = {
.enable_autosleep = stmpe1601_autosleep,
};

/*
* STMPE1801
*/
static const u8 stmpe1801_regs[] = {
[STMPE_IDX_CHIP_ID] = STMPE1801_REG_CHIP_ID,
[STMPE_IDX_ICR_LSB] = STMPE1801_REG_INT_CTRL_LOW,
[STMPE_IDX_IER_LSB] = STMPE1801_REG_INT_EN_MASK_LOW,
[STMPE_IDX_ISR_LSB] = STMPE1801_REG_INT_STA_LOW,
[STMPE_IDX_GPMR_LSB] = STMPE1801_REG_GPIO_MP_LOW,
[STMPE_IDX_GPSR_LSB] = STMPE1801_REG_GPIO_SET_LOW,
[STMPE_IDX_GPCR_LSB] = STMPE1801_REG_GPIO_CLR_LOW,
[STMPE_IDX_GPDR_LSB] = STMPE1801_REG_GPIO_SET_DIR_LOW,
[STMPE_IDX_GPRER_LSB] = STMPE1801_REG_GPIO_RE_LOW,
[STMPE_IDX_GPFER_LSB] = STMPE1801_REG_GPIO_FE_LOW,
[STMPE_IDX_IEGPIOR_LSB] = STMPE1801_REG_INT_EN_GPIO_MASK_LOW,
[STMPE_IDX_ISGPIOR_LSB] = STMPE1801_REG_INT_STA_GPIO_LOW,
};

static struct stmpe_variant_block stmpe1801_blocks[] = {
{
.cell = &stmpe_gpio_cell,
.irq = STMPE1801_IRQ_GPIOC,
.block = STMPE_BLOCK_GPIO,
},
{
.cell = &stmpe_keypad_cell,
.irq = STMPE1801_IRQ_KEYPAD,
.block = STMPE_BLOCK_KEYPAD,
},
};

static int stmpe1801_enable(struct stmpe *stmpe, unsigned int blocks,
bool enable)
{
unsigned int mask = 0;
if (blocks & STMPE_BLOCK_GPIO)
mask |= STMPE1801_MSK_INT_EN_GPIO;

if (blocks & STMPE_BLOCK_KEYPAD)
mask |= STMPE1801_MSK_INT_EN_KPC;

return __stmpe_set_bits(stmpe, STMPE1801_REG_INT_EN_MASK_LOW, mask,
enable ? mask : 0);
}

static int stmpe1801_reset(struct stmpe *stmpe)
{
unsigned long timeout;
int ret = 0;

ret = __stmpe_set_bits(stmpe, STMPE1801_REG_SYS_CTRL,
STMPE1801_MSK_SYS_CTRL_RESET, STMPE1801_MSK_SYS_CTRL_RESET);
if (ret < 0)
return ret;

timeout = jiffies + msecs_to_jiffies(100);
while (time_before(jiffies, timeout)) {
ret = __stmpe_reg_read(stmpe, STMPE1801_REG_SYS_CTRL);
if (ret < 0)
return ret;
if (!(ret & STMPE1801_MSK_SYS_CTRL_RESET))
return 0;
usleep_range(100, 200);
};
return -EIO;
}

static struct stmpe_variant_info stmpe1801 = {
.name = "stmpe1801",
.id_val = STMPE1801_ID,
.id_mask = 0xfff0,
.num_gpios = 18,
.af_bits = 0,
.regs = stmpe1801_regs,
.blocks = stmpe1801_blocks,
.num_blocks = ARRAY_SIZE(stmpe1801_blocks),
.num_irqs = STMPE1801_NR_INTERNAL_IRQS,
.enable = stmpe1801_enable,
/* stmpe1801 do not have any gpio alternate function */
.get_altfunc = NULL,
};

/*
* STMPE24XX
*/
Expand Down Expand Up @@ -740,6 +823,7 @@ static struct stmpe_variant_info *stmpe_variant_info[STMPE_NBR_PARTS] = {
[STMPE801] = &stmpe801,
[STMPE811] = &stmpe811,
[STMPE1601] = &stmpe1601,
[STMPE1801] = &stmpe1801,
[STMPE2401] = &stmpe2401,
[STMPE2403] = &stmpe2403,
};
Expand All @@ -759,7 +843,7 @@ static irqreturn_t stmpe_irq(int irq, void *data)
struct stmpe *stmpe = data;
struct stmpe_variant_info *variant = stmpe->variant;
int num = DIV_ROUND_UP(variant->num_irqs, 8);
u8 israddr = stmpe->regs[STMPE_IDX_ISR_MSB];
u8 israddr;
u8 isr[num];
int ret;
int i;
Expand All @@ -771,6 +855,11 @@ static irqreturn_t stmpe_irq(int irq, void *data)
return IRQ_HANDLED;
}

if (variant->id_val == STMPE1801_ID)
israddr = stmpe->regs[STMPE_IDX_ISR_LSB];
else
israddr = stmpe->regs[STMPE_IDX_ISR_MSB];

ret = stmpe_block_read(stmpe, israddr, num, isr);
if (ret < 0)
return IRQ_NONE;
Expand Down Expand Up @@ -938,6 +1027,12 @@ static int stmpe_chip_init(struct stmpe *stmpe)
if (ret)
return ret;

if (id == STMPE1801_ID) {
ret = stmpe1801_reset(stmpe);
if (ret < 0)
return ret;
}

if (stmpe->irq >= 0) {
if (id == STMPE801_ID)
icr = STMPE801_REG_SYS_CTRL_INT_EN;
Expand Down
49 changes: 49 additions & 0 deletions trunk/drivers/mfd/stmpe.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,55 @@ int stmpe_remove(struct stmpe *stmpe);
#define STMPE1601_AUTOSLEEP_TIMEOUT_MASK (0x7)
#define STPME1601_AUTOSLEEP_ENABLE (1 << 3)

/*
* STMPE1801
*/
#define STMPE1801_ID 0xc110
#define STMPE1801_NR_INTERNAL_IRQS 5
#define STMPE1801_IRQ_KEYPAD_COMBI 4
#define STMPE1801_IRQ_GPIOC 3
#define STMPE1801_IRQ_KEYPAD_OVER 2
#define STMPE1801_IRQ_KEYPAD 1
#define STMPE1801_IRQ_WAKEUP 0

#define STMPE1801_REG_CHIP_ID 0x00
#define STMPE1801_REG_SYS_CTRL 0x02
#define STMPE1801_REG_INT_CTRL_LOW 0x04
#define STMPE1801_REG_INT_EN_MASK_LOW 0x06
#define STMPE1801_REG_INT_STA_LOW 0x08
#define STMPE1801_REG_INT_EN_GPIO_MASK_LOW 0x0A
#define STMPE1801_REG_INT_EN_GPIO_MASK_MID 0x0B
#define STMPE1801_REG_INT_EN_GPIO_MASK_HIGH 0x0C
#define STMPE1801_REG_INT_STA_GPIO_LOW 0x0D
#define STMPE1801_REG_INT_STA_GPIO_MID 0x0E
#define STMPE1801_REG_INT_STA_GPIO_HIGH 0x0F
#define STMPE1801_REG_GPIO_SET_LOW 0x10
#define STMPE1801_REG_GPIO_SET_MID 0x11
#define STMPE1801_REG_GPIO_SET_HIGH 0x12
#define STMPE1801_REG_GPIO_CLR_LOW 0x13
#define STMPE1801_REG_GPIO_CLR_MID 0x14
#define STMPE1801_REG_GPIO_CLR_HIGH 0x15
#define STMPE1801_REG_GPIO_MP_LOW 0x16
#define STMPE1801_REG_GPIO_MP_MID 0x17
#define STMPE1801_REG_GPIO_MP_HIGH 0x18
#define STMPE1801_REG_GPIO_SET_DIR_LOW 0x19
#define STMPE1801_REG_GPIO_SET_DIR_MID 0x1A
#define STMPE1801_REG_GPIO_SET_DIR_HIGH 0x1B
#define STMPE1801_REG_GPIO_RE_LOW 0x1C
#define STMPE1801_REG_GPIO_RE_MID 0x1D
#define STMPE1801_REG_GPIO_RE_HIGH 0x1E
#define STMPE1801_REG_GPIO_FE_LOW 0x1F
#define STMPE1801_REG_GPIO_FE_MID 0x20
#define STMPE1801_REG_GPIO_FE_HIGH 0x21
#define STMPE1801_REG_GPIO_PULL_UP_LOW 0x22
#define STMPE1801_REG_GPIO_PULL_UP_MID 0x23
#define STMPE1801_REG_GPIO_PULL_UP_HIGH 0x24

#define STMPE1801_MSK_SYS_CTRL_RESET (1 << 7)

#define STMPE1801_MSK_INT_EN_KPC (1 << 1)
#define STMPE1801_MSK_INT_EN_GPIO (1 << 3)

/*
* STMPE24xx
*/
Expand Down
3 changes: 3 additions & 0 deletions trunk/include/linux/mfd/stmpe.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ enum stmpe_partnum {
STMPE801,
STMPE811,
STMPE1601,
STMPE1801,
STMPE2401,
STMPE2403,
STMPE_NBR_PARTS
Expand All @@ -39,6 +40,7 @@ enum {
STMPE_IDX_CHIP_ID,
STMPE_IDX_ICR_LSB,
STMPE_IDX_IER_LSB,
STMPE_IDX_ISR_LSB,
STMPE_IDX_ISR_MSB,
STMPE_IDX_GPMR_LSB,
STMPE_IDX_GPSR_LSB,
Expand All @@ -49,6 +51,7 @@ enum {
STMPE_IDX_GPFER_LSB,
STMPE_IDX_GPAFR_U_MSB,
STMPE_IDX_IEGPIOR_LSB,
STMPE_IDX_ISGPIOR_LSB,
STMPE_IDX_ISGPIOR_MSB,
STMPE_IDX_MAX,
};
Expand Down

0 comments on commit 1f0e3fc

Please sign in to comment.