mfd: stmpe: add pull up/down register offsets for STMPE

This adds the register offsets for pull up/down for the STMPE
1601, 1801 and 24xx expanders. This is used to bias GPIO lines
and keypad lines.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 02a17c3..2d29d17 100644 (file)
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -519,6 +519,7 @@ static const u8 stmpe1601_regs[] = {
        [STMPE_IDX_GPDR_LSB]    = STMPE1601_REG_GPIO_SET_DIR_LSB,
        [STMPE_IDX_GPRER_LSB]   = STMPE1601_REG_GPIO_RE_LSB,
        [STMPE_IDX_GPFER_LSB]   = STMPE1601_REG_GPIO_FE_LSB,
+       [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_ISGPIOR_MSB] = STMPE1601_REG_INT_STA_GPIO_MSB,
@@ -667,6 +668,7 @@ static const u8 stmpe1801_regs[] = {
        [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_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,
 };
@@ -750,6 +752,8 @@ static const u8 stmpe24xx_regs[] = {
        [STMPE_IDX_GPDR_LSB]    = STMPE24XX_REG_GPDR_LSB,
        [STMPE_IDX_GPRER_LSB]   = STMPE24XX_REG_GPRER_LSB,
        [STMPE_IDX_GPFER_LSB]   = STMPE24XX_REG_GPFER_LSB,
+       [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_ISGPIOR_MSB] = STMPE24XX_REG_ISGPIOR_MSB,

diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h
index 2d045f2..e00710b 100644 (file)
--- a/drivers/mfd/stmpe.h
+++ b/drivers/mfd/stmpe.h
@@ -188,6 +188,7 @@ int stmpe_remove(struct stmpe *stmpe);
 #define STMPE1601_REG_GPIO_ED_MSB              0x8A
 #define STMPE1601_REG_GPIO_RE_LSB              0x8D
 #define STMPE1601_REG_GPIO_FE_LSB              0x8F
+#define STMPE1601_REG_GPIO_PU_LSB              0x91
 #define STMPE1601_REG_GPIO_AF_U_MSB            0x92
 
 #define STMPE1601_SYS_CTRL_ENABLE_GPIO         (1 << 3)
@@ -276,6 +277,8 @@ int stmpe_remove(struct stmpe *stmpe);
 #define STMPE24XX_REG_GPEDR_MSB                0x8C
 #define STMPE24XX_REG_GPRER_LSB                0x91
 #define STMPE24XX_REG_GPFER_LSB                0x94
+#define STMPE24XX_REG_GPPUR_LSB                0x97
+#define STMPE24XX_REG_GPPDR_LSB                0x9a
 #define STMPE24XX_REG_GPAFR_U_MSB      0x9B
 
 #define STMPE24XX_SYS_CTRL_ENABLE_GPIO         (1 << 3)

diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h
index 575a86c..cc0deb7 100644 (file)
--- a/include/linux/mfd/stmpe.h
+++ b/include/linux/mfd/stmpe.h
@@ -50,6 +50,8 @@ enum {
        STMPE_IDX_GPEDR_MSB,
        STMPE_IDX_GPRER_LSB,
        STMPE_IDX_GPFER_LSB,
+       STMPE_IDX_GPPUR_LSB,
+       STMPE_IDX_GPPDR_LSB,
        STMPE_IDX_GPAFR_U_MSB,
        STMPE_IDX_IEGPIOR_LSB,
        STMPE_IDX_ISGPIOR_LSB,