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Subject[PATCH 1/8] mfd: stmpe: Add STMPE_IDX_SYS_CTRL/2 enum
Date
From: Patrice Chotard <patrice.chotard@st.com>

As STMPE1801/1601/24xx has a SYS_CTRL register and
STMPE1601/2403 has even a SYS_CTRL2 register, add
STMPE_IDX_SYS_CTRL/2 and update driver code accordingly

This update prepares the ground for not yet supported STMPE1600
which share similar REG_SYS_CTRL register.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
---
drivers/mfd/stmpe.c | 21 ++++++++++++++-------
drivers/mfd/stmpe.h | 2 ++
include/linux/mfd/stmpe.h | 2 ++
3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index fb8f9e8..c553b73 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -448,6 +448,8 @@ 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,
@@ -490,7 +492,7 @@ 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);
}

@@ -535,6 +537,8 @@ static struct stmpe_variant_info stmpe610 = {

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_LSB] = STMPE1601_REG_IER_LSB,
[STMPE_IDX_ISR_MSB] = STMPE1601_REG_ISR_MSB,
@@ -619,13 +623,13 @@ 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);
}
@@ -650,7 +654,7 @@ 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);
}

@@ -689,6 +693,7 @@ 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,
@@ -735,14 +740,14 @@ static int stmpe1801_reset(struct stmpe *stmpe)
unsigned long timeout;
int ret = 0;

- ret = __stmpe_set_bits(stmpe, STMPE1801_REG_SYS_CTRL,
+ ret = __stmpe_set_bits(stmpe, stmpe->regs[STMPE_IDX_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);
+ ret = __stmpe_reg_read(stmpe, stmpe->regs[STMPE_IDX_SYS_CTRL]);
if (ret < 0)
return ret;
if (!(ret & STMPE1801_MSK_SYS_CTRL_RESET))
@@ -773,6 +778,8 @@ 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_LSB] = STMPE24XX_REG_IER_LSB,
[STMPE_IDX_ISR_MSB] = STMPE24XX_REG_ISR_MSB,
@@ -819,7 +826,7 @@ 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);
}

diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h
index 84adb46..406f9f2 100644
--- a/drivers/mfd/stmpe.h
+++ b/drivers/mfd/stmpe.h
@@ -138,6 +138,7 @@ int stmpe_remove(struct stmpe *stmpe);
#define STMPE811_NR_INTERNAL_IRQS 8

#define STMPE811_REG_CHIP_ID 0x00
+#define STMPE811_REG_SYS_CTRL 0x03
#define STMPE811_REG_SYS_CTRL2 0x04
#define STMPE811_REG_SPI_CFG 0x08
#define STMPE811_REG_INT_CTRL 0x09
@@ -264,6 +265,7 @@ int stmpe_remove(struct stmpe *stmpe);
#define STMPE24XX_NR_INTERNAL_IRQS 9

#define STMPE24XX_REG_SYS_CTRL 0x02
+#define STMPE24XX_REG_SYS_CTRL2 0x03
#define STMPE24XX_REG_ICR_LSB 0x11
#define STMPE24XX_REG_IER_LSB 0x13
#define STMPE24XX_REG_ISR_MSB 0x14
diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h
index cb83883..6c6690f 100644
--- a/include/linux/mfd/stmpe.h
+++ b/include/linux/mfd/stmpe.h
@@ -39,6 +39,8 @@ enum stmpe_partnum {
*/
enum {
STMPE_IDX_CHIP_ID,
+ STMPE_IDX_SYS_CTRL,
+ STMPE_IDX_SYS_CTRL2,
STMPE_IDX_ICR_LSB,
STMPE_IDX_IER_LSB,
STMPE_IDX_ISR_LSB,
--
1.9.1
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