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path: root/drivers/mfd/stmpe.c
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Diffstat (limited to 'drivers/mfd/stmpe.c')
-rw-r--r--drivers/mfd/stmpe.c161
1 files changed, 135 insertions, 26 deletions
diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 94c7cc0..cfdae8a 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -469,6 +469,8 @@ static const struct mfd_cell stmpe_ts_cell = {
static const u8 stmpe811_regs[] = {
[STMPE_IDX_CHIP_ID] = STMPE811_REG_CHIP_ID,
+ [STMPE_IDX_SYS_CTRL] = STMPE811_REG_SYS_CTRL,
+ [STMPE_IDX_SYS_CTRL2] = STMPE811_REG_SYS_CTRL2,
[STMPE_IDX_ICR_LSB] = STMPE811_REG_INT_CTRL,
[STMPE_IDX_IER_LSB] = STMPE811_REG_INT_EN,
[STMPE_IDX_ISR_MSB] = STMPE811_REG_INT_STA,
@@ -481,7 +483,7 @@ static const u8 stmpe811_regs[] = {
[STMPE_IDX_GPAFR_U_MSB] = STMPE811_REG_GPIO_AF,
[STMPE_IDX_IEGPIOR_LSB] = STMPE811_REG_GPIO_INT_EN,
[STMPE_IDX_ISGPIOR_MSB] = STMPE811_REG_GPIO_INT_STA,
- [STMPE_IDX_GPEDR_MSB] = STMPE811_REG_GPIO_ED,
+ [STMPE_IDX_GPEDR_LSB] = STMPE811_REG_GPIO_ED,
};
static struct stmpe_variant_block stmpe811_blocks[] = {
@@ -511,7 +513,7 @@ static int stmpe811_enable(struct stmpe *stmpe, unsigned int blocks,
if (blocks & STMPE_BLOCK_TOUCHSCREEN)
mask |= STMPE811_SYS_CTRL2_TSC_OFF;
- return __stmpe_set_bits(stmpe, STMPE811_REG_SYS_CTRL2, mask,
+ return __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL2], mask,
enable ? 0 : mask);
}
@@ -551,25 +553,89 @@ static struct stmpe_variant_info stmpe610 = {
};
/*
+ * STMPE1600
+ * Compared to all others STMPE variant, LSB and MSB regs are located in this
+ * order : LSB addr
+ * MSB addr + 1
+ * As there is only 2 * 8bits registers for GPMR/GPSR/IEGPIOPR, CSB index is MSB registers
+ */
+
+static const u8 stmpe1600_regs[] = {
+ [STMPE_IDX_CHIP_ID] = STMPE1600_REG_CHIP_ID,
+ [STMPE_IDX_SYS_CTRL] = STMPE1600_REG_SYS_CTRL,
+ [STMPE_IDX_ICR_LSB] = STMPE1600_REG_SYS_CTRL,
+ [STMPE_IDX_GPMR_LSB] = STMPE1600_REG_GPMR_LSB,
+ [STMPE_IDX_GPMR_CSB] = STMPE1600_REG_GPMR_MSB,
+ [STMPE_IDX_GPSR_LSB] = STMPE1600_REG_GPSR_LSB,
+ [STMPE_IDX_GPSR_CSB] = STMPE1600_REG_GPSR_MSB,
+ [STMPE_IDX_GPDR_LSB] = STMPE1600_REG_GPDR_LSB,
+ [STMPE_IDX_GPDR_CSB] = STMPE1600_REG_GPDR_MSB,
+ [STMPE_IDX_IEGPIOR_LSB] = STMPE1600_REG_IEGPIOR_LSB,
+ [STMPE_IDX_IEGPIOR_CSB] = STMPE1600_REG_IEGPIOR_MSB,
+ [STMPE_IDX_ISGPIOR_LSB] = STMPE1600_REG_ISGPIOR_LSB,
+};
+
+static struct stmpe_variant_block stmpe1600_blocks[] = {
+ {
+ .cell = &stmpe_gpio_cell,
+ .irq = 0,
+ .block = STMPE_BLOCK_GPIO,
+ },
+};
+
+static int stmpe1600_enable(struct stmpe *stmpe, unsigned int blocks,
+ bool enable)
+{
+ if (blocks & STMPE_BLOCK_GPIO)
+ return 0;
+ else
+ return -EINVAL;
+}
+
+static struct stmpe_variant_info stmpe1600 = {
+ .name = "stmpe1600",
+ .id_val = STMPE1600_ID,
+ .id_mask = 0xffff,
+ .num_gpios = 16,
+ .af_bits = 0,
+ .regs = stmpe1600_regs,
+ .blocks = stmpe1600_blocks,
+ .num_blocks = ARRAY_SIZE(stmpe1600_blocks),
+ .num_irqs = STMPE1600_NR_INTERNAL_IRQS,
+ .enable = stmpe1600_enable,
+};
+
+/*
* STMPE1601
*/
static const u8 stmpe1601_regs[] = {
[STMPE_IDX_CHIP_ID] = STMPE1601_REG_CHIP_ID,
+ [STMPE_IDX_SYS_CTRL] = STMPE1601_REG_SYS_CTRL,
+ [STMPE_IDX_SYS_CTRL2] = STMPE1601_REG_SYS_CTRL2,
[STMPE_IDX_ICR_LSB] = STMPE1601_REG_ICR_LSB,
+ [STMPE_IDX_IER_MSB] = STMPE1601_REG_IER_MSB,
[STMPE_IDX_IER_LSB] = STMPE1601_REG_IER_LSB,
[STMPE_IDX_ISR_MSB] = STMPE1601_REG_ISR_MSB,
[STMPE_IDX_GPMR_LSB] = STMPE1601_REG_GPIO_MP_LSB,
+ [STMPE_IDX_GPMR_CSB] = STMPE1601_REG_GPIO_MP_MSB,
[STMPE_IDX_GPSR_LSB] = STMPE1601_REG_GPIO_SET_LSB,
+ [STMPE_IDX_GPSR_CSB] = STMPE1601_REG_GPIO_SET_MSB,
[STMPE_IDX_GPCR_LSB] = STMPE1601_REG_GPIO_CLR_LSB,
+ [STMPE_IDX_GPCR_CSB] = STMPE1601_REG_GPIO_CLR_MSB,
[STMPE_IDX_GPDR_LSB] = STMPE1601_REG_GPIO_SET_DIR_LSB,
+ [STMPE_IDX_GPDR_CSB] = STMPE1601_REG_GPIO_SET_DIR_MSB,
+ [STMPE_IDX_GPEDR_LSB] = STMPE1601_REG_GPIO_ED_LSB,
+ [STMPE_IDX_GPEDR_CSB] = STMPE1601_REG_GPIO_ED_MSB,
[STMPE_IDX_GPRER_LSB] = STMPE1601_REG_GPIO_RE_LSB,
+ [STMPE_IDX_GPRER_CSB] = STMPE1601_REG_GPIO_RE_MSB,
[STMPE_IDX_GPFER_LSB] = STMPE1601_REG_GPIO_FE_LSB,
+ [STMPE_IDX_GPFER_CSB] = STMPE1601_REG_GPIO_FE_MSB,
[STMPE_IDX_GPPUR_LSB] = STMPE1601_REG_GPIO_PU_LSB,
[STMPE_IDX_GPAFR_U_MSB] = STMPE1601_REG_GPIO_AF_U_MSB,
[STMPE_IDX_IEGPIOR_LSB] = STMPE1601_REG_INT_EN_GPIO_MASK_LSB,
+ [STMPE_IDX_IEGPIOR_CSB] = STMPE1601_REG_INT_EN_GPIO_MASK_MSB,
[STMPE_IDX_ISGPIOR_MSB] = STMPE1601_REG_INT_STA_GPIO_MSB,
- [STMPE_IDX_GPEDR_MSB] = STMPE1601_REG_GPIO_ED_MSB,
};
static struct stmpe_variant_block stmpe1601_blocks[] = {
@@ -640,13 +706,13 @@ static int stmpe1601_autosleep(struct stmpe *stmpe,
return timeout;
}
- ret = __stmpe_set_bits(stmpe, STMPE1601_REG_SYS_CTRL2,
+ ret = __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL2],
STMPE1601_AUTOSLEEP_TIMEOUT_MASK,
timeout);
if (ret < 0)
return ret;
- return __stmpe_set_bits(stmpe, STMPE1601_REG_SYS_CTRL2,
+ return __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL2],
STPME1601_AUTOSLEEP_ENABLE,
STPME1601_AUTOSLEEP_ENABLE);
}
@@ -671,7 +737,7 @@ static int stmpe1601_enable(struct stmpe *stmpe, unsigned int blocks,
else
mask &= ~STMPE1601_SYS_CTRL_ENABLE_SPWM;
- return __stmpe_set_bits(stmpe, STMPE1601_REG_SYS_CTRL, mask,
+ return __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL], mask,
enable ? mask : 0);
}
@@ -710,18 +776,33 @@ static struct stmpe_variant_info stmpe1601 = {
*/
static const u8 stmpe1801_regs[] = {
[STMPE_IDX_CHIP_ID] = STMPE1801_REG_CHIP_ID,
+ [STMPE_IDX_SYS_CTRL] = STMPE1801_REG_SYS_CTRL,
[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_GPMR_CSB] = STMPE1801_REG_GPIO_MP_MID,
+ [STMPE_IDX_GPMR_MSB] = STMPE1801_REG_GPIO_MP_HIGH,
[STMPE_IDX_GPSR_LSB] = STMPE1801_REG_GPIO_SET_LOW,
+ [STMPE_IDX_GPSR_CSB] = STMPE1801_REG_GPIO_SET_MID,
+ [STMPE_IDX_GPSR_MSB] = STMPE1801_REG_GPIO_SET_HIGH,
[STMPE_IDX_GPCR_LSB] = STMPE1801_REG_GPIO_CLR_LOW,
+ [STMPE_IDX_GPCR_CSB] = STMPE1801_REG_GPIO_CLR_MID,
+ [STMPE_IDX_GPCR_MSB] = STMPE1801_REG_GPIO_CLR_HIGH,
[STMPE_IDX_GPDR_LSB] = STMPE1801_REG_GPIO_SET_DIR_LOW,
+ [STMPE_IDX_GPDR_CSB] = STMPE1801_REG_GPIO_SET_DIR_MID,
+ [STMPE_IDX_GPDR_MSB] = STMPE1801_REG_GPIO_SET_DIR_HIGH,
[STMPE_IDX_GPRER_LSB] = STMPE1801_REG_GPIO_RE_LOW,
+ [STMPE_IDX_GPRER_CSB] = STMPE1801_REG_GPIO_RE_MID,
+ [STMPE_IDX_GPRER_MSB] = STMPE1801_REG_GPIO_RE_HIGH,
[STMPE_IDX_GPFER_LSB] = STMPE1801_REG_GPIO_FE_LOW,
+ [STMPE_IDX_GPFER_CSB] = STMPE1801_REG_GPIO_FE_MID,
+ [STMPE_IDX_GPFER_MSB] = STMPE1801_REG_GPIO_FE_HIGH,
[STMPE_IDX_GPPUR_LSB] = STMPE1801_REG_GPIO_PULL_UP_LOW,
[STMPE_IDX_IEGPIOR_LSB] = STMPE1801_REG_INT_EN_GPIO_MASK_LOW,
- [STMPE_IDX_ISGPIOR_LSB] = STMPE1801_REG_INT_STA_GPIO_LOW,
+ [STMPE_IDX_IEGPIOR_CSB] = STMPE1801_REG_INT_EN_GPIO_MASK_MID,
+ [STMPE_IDX_IEGPIOR_MSB] = STMPE1801_REG_INT_EN_GPIO_MASK_HIGH,
+ [STMPE_IDX_ISGPIOR_MSB] = STMPE1801_REG_INT_STA_GPIO_HIGH,
};
static struct stmpe_variant_block stmpe1801_blocks[] = {
@@ -751,22 +832,31 @@ static int stmpe1801_enable(struct stmpe *stmpe, unsigned int blocks,
enable ? mask : 0);
}
-static int stmpe1801_reset(struct stmpe *stmpe)
+static int stmpe_reset(struct stmpe *stmpe)
{
+ u16 id_val = stmpe->variant->id_val;
unsigned long timeout;
int ret = 0;
+ u8 reset_bit;
+
+ if (id_val == STMPE811_ID)
+ /* STMPE801 and STMPE610 use bit 1 of SYS_CTRL register */
+ reset_bit = STMPE811_SYS_CTRL_RESET;
+ else
+ /* all other STMPE variant use bit 7 of SYS_CTRL register */
+ reset_bit = STMPE_SYS_CTRL_RESET;
- ret = __stmpe_set_bits(stmpe, STMPE1801_REG_SYS_CTRL,
- STMPE1801_MSK_SYS_CTRL_RESET, STMPE1801_MSK_SYS_CTRL_RESET);
+ ret = __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL],
+ reset_bit, reset_bit);
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);
+ ret = __stmpe_reg_read(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL]);
if (ret < 0)
return ret;
- if (!(ret & STMPE1801_MSK_SYS_CTRL_RESET))
+ if (!(ret & reset_bit))
return 0;
usleep_range(100, 200);
}
@@ -794,20 +884,39 @@ static struct stmpe_variant_info stmpe1801 = {
static const u8 stmpe24xx_regs[] = {
[STMPE_IDX_CHIP_ID] = STMPE24XX_REG_CHIP_ID,
+ [STMPE_IDX_SYS_CTRL] = STMPE24XX_REG_SYS_CTRL,
+ [STMPE_IDX_SYS_CTRL2] = STMPE24XX_REG_SYS_CTRL2,
[STMPE_IDX_ICR_LSB] = STMPE24XX_REG_ICR_LSB,
+ [STMPE_IDX_IER_MSB] = STMPE24XX_REG_IER_MSB,
[STMPE_IDX_IER_LSB] = STMPE24XX_REG_IER_LSB,
[STMPE_IDX_ISR_MSB] = STMPE24XX_REG_ISR_MSB,
[STMPE_IDX_GPMR_LSB] = STMPE24XX_REG_GPMR_LSB,
+ [STMPE_IDX_GPMR_CSB] = STMPE24XX_REG_GPMR_CSB,
+ [STMPE_IDX_GPMR_MSB] = STMPE24XX_REG_GPMR_MSB,
[STMPE_IDX_GPSR_LSB] = STMPE24XX_REG_GPSR_LSB,
+ [STMPE_IDX_GPSR_CSB] = STMPE24XX_REG_GPSR_CSB,
+ [STMPE_IDX_GPSR_MSB] = STMPE24XX_REG_GPSR_MSB,
[STMPE_IDX_GPCR_LSB] = STMPE24XX_REG_GPCR_LSB,
+ [STMPE_IDX_GPCR_CSB] = STMPE24XX_REG_GPCR_CSB,
+ [STMPE_IDX_GPCR_MSB] = STMPE24XX_REG_GPCR_MSB,
[STMPE_IDX_GPDR_LSB] = STMPE24XX_REG_GPDR_LSB,
+ [STMPE_IDX_GPDR_CSB] = STMPE24XX_REG_GPDR_CSB,
+ [STMPE_IDX_GPDR_MSB] = STMPE24XX_REG_GPDR_MSB,
[STMPE_IDX_GPRER_LSB] = STMPE24XX_REG_GPRER_LSB,
+ [STMPE_IDX_GPRER_CSB] = STMPE24XX_REG_GPRER_CSB,
+ [STMPE_IDX_GPRER_MSB] = STMPE24XX_REG_GPRER_MSB,
[STMPE_IDX_GPFER_LSB] = STMPE24XX_REG_GPFER_LSB,
+ [STMPE_IDX_GPFER_CSB] = STMPE24XX_REG_GPFER_CSB,
+ [STMPE_IDX_GPFER_MSB] = STMPE24XX_REG_GPFER_MSB,
[STMPE_IDX_GPPUR_LSB] = STMPE24XX_REG_GPPUR_LSB,
[STMPE_IDX_GPPDR_LSB] = STMPE24XX_REG_GPPDR_LSB,
[STMPE_IDX_GPAFR_U_MSB] = STMPE24XX_REG_GPAFR_U_MSB,
[STMPE_IDX_IEGPIOR_LSB] = STMPE24XX_REG_IEGPIOR_LSB,
+ [STMPE_IDX_IEGPIOR_CSB] = STMPE24XX_REG_IEGPIOR_CSB,
+ [STMPE_IDX_IEGPIOR_MSB] = STMPE24XX_REG_IEGPIOR_MSB,
[STMPE_IDX_ISGPIOR_MSB] = STMPE24XX_REG_ISGPIOR_MSB,
+ [STMPE_IDX_GPEDR_LSB] = STMPE24XX_REG_GPEDR_LSB,
+ [STMPE_IDX_GPEDR_CSB] = STMPE24XX_REG_GPEDR_CSB,
[STMPE_IDX_GPEDR_MSB] = STMPE24XX_REG_GPEDR_MSB,
};
@@ -840,7 +949,7 @@ static int stmpe24xx_enable(struct stmpe *stmpe, unsigned int blocks,
if (blocks & STMPE_BLOCK_KEYPAD)
mask |= STMPE24XX_SYS_CTRL_ENABLE_KPC;
- return __stmpe_set_bits(stmpe, STMPE24XX_REG_SYS_CTRL, mask,
+ return __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL], mask,
enable ? mask : 0);
}
@@ -893,6 +1002,7 @@ static struct stmpe_variant_info *stmpe_variant_info[STMPE_NBR_PARTS] = {
[STMPE610] = &stmpe610,
[STMPE801] = &stmpe801,
[STMPE811] = &stmpe811,
+ [STMPE1600] = &stmpe1600,
[STMPE1601] = &stmpe1601,
[STMPE1801] = &stmpe1801,
[STMPE2401] = &stmpe2401,
@@ -919,7 +1029,8 @@ static irqreturn_t stmpe_irq(int irq, void *data)
int ret;
int i;
- if (variant->id_val == STMPE801_ID) {
+ if (variant->id_val == STMPE801_ID ||
+ variant->id_val == STMPE1600_ID) {
int base = irq_create_mapping(stmpe->domain, 0);
handle_nested_irq(base);
@@ -982,7 +1093,7 @@ static void stmpe_irq_sync_unlock(struct irq_data *data)
continue;
stmpe->oldier[i] = new;
- stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_IER_LSB] - i, new);
+ stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_IER_LSB + i], new);
}
mutex_unlock(&stmpe->irq_lock);
@@ -1088,20 +1199,18 @@ 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;
- }
+ ret = stmpe_reset(stmpe);
+ if (ret < 0)
+ return ret;
if (stmpe->irq >= 0) {
- if (id == STMPE801_ID)
- icr = STMPE801_REG_SYS_CTRL_INT_EN;
+ if (id == STMPE801_ID || id == STMPE1600_ID)
+ icr = STMPE_SYS_CTRL_INT_EN;
else
icr = STMPE_ICR_LSB_GIM;
- /* STMPE801 doesn't support Edge interrupts */
- if (id != STMPE801_ID) {
+ /* STMPE801 and STMPE1600 don't support Edge interrupts */
+ if (id != STMPE801_ID && id != STMPE1600_ID) {
if (irq_trigger == IRQF_TRIGGER_FALLING ||
irq_trigger == IRQF_TRIGGER_RISING)
icr |= STMPE_ICR_LSB_EDGE;
@@ -1109,8 +1218,8 @@ static int stmpe_chip_init(struct stmpe *stmpe)
if (irq_trigger == IRQF_TRIGGER_RISING ||
irq_trigger == IRQF_TRIGGER_HIGH) {
- if (id == STMPE801_ID)
- icr |= STMPE801_REG_SYS_CTRL_INT_HI;
+ if (id == STMPE801_ID || id == STMPE1600_ID)
+ icr |= STMPE_SYS_CTRL_INT_HI;
else
icr |= STMPE_ICR_LSB_HIGH;
}
generated by cgit v0.10.2 at 2024-10-31 05:01:15 (GMT)