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path: root/drivers/input/keyboard/pmic8xxx-keypad.c
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Diffstat (limited to 'drivers/input/keyboard/pmic8xxx-keypad.c')
-rw-r--r--drivers/input/keyboard/pmic8xxx-keypad.c81
1 files changed, 29 insertions, 52 deletions
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
index bec53ebde7b2..0efd11e16b7e 100644
--- a/drivers/input/keyboard/pmic8xxx-keypad.c
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -19,8 +19,8 @@
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/mutex.h>
+#include <linux/regmap.h>
-#include <linux/mfd/pm8xxx/core.h>
#include <linux/input/pmic8xxx-keypad.h>
#define PM8XXX_MAX_ROWS 18
@@ -86,6 +86,7 @@
* struct pmic8xxx_kp - internal keypad data structure
* @pdata - keypad platform data pointer
* @input - input device pointer for keypad
+ * @regmap - regmap handle
* @key_sense_irq - key press/release irq number
* @key_stuck_irq - key stuck notification irq number
* @keycodes - array to hold the key codes
@@ -97,6 +98,7 @@
struct pmic8xxx_kp {
const struct pm8xxx_keypad_platform_data *pdata;
struct input_dev *input;
+ struct regmap *regmap;
int key_sense_irq;
int key_stuck_irq;
@@ -109,33 +111,6 @@ struct pmic8xxx_kp {
u8 ctrl_reg;
};
-static int pmic8xxx_kp_write_u8(struct pmic8xxx_kp *kp,
- u8 data, u16 reg)
-{
- int rc;
-
- rc = pm8xxx_writeb(kp->dev->parent, reg, data);
- return rc;
-}
-
-static int pmic8xxx_kp_read(struct pmic8xxx_kp *kp,
- u8 *data, u16 reg, unsigned num_bytes)
-{
- int rc;
-
- rc = pm8xxx_read_buf(kp->dev->parent, reg, data, num_bytes);
- return rc;
-}
-
-static int pmic8xxx_kp_read_u8(struct pmic8xxx_kp *kp,
- u8 *data, u16 reg)
-{
- int rc;
-
- rc = pmic8xxx_kp_read(kp, data, reg, 1);
- return rc;
-}
-
static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col)
{
/* all keys pressed on that particular row? */
@@ -160,9 +135,9 @@ static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col)
static int pmic8xxx_chk_sync_read(struct pmic8xxx_kp *kp)
{
int rc;
- u8 scan_val;
+ unsigned int scan_val;
- rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
+ rc = regmap_read(kp->regmap, KEYP_SCAN, &scan_val);
if (rc < 0) {
dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
return rc;
@@ -170,7 +145,7 @@ static int pmic8xxx_chk_sync_read(struct pmic8xxx_kp *kp)
scan_val |= 0x1;
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ rc = regmap_write(kp->regmap, KEYP_SCAN, scan_val);
if (rc < 0) {
dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
return rc;
@@ -186,26 +161,24 @@ static int pmic8xxx_kp_read_data(struct pmic8xxx_kp *kp, u16 *state,
u16 data_reg, int read_rows)
{
int rc, row;
- u8 new_data[PM8XXX_MAX_ROWS];
+ unsigned int val;
- rc = pmic8xxx_kp_read(kp, new_data, data_reg, read_rows);
- if (rc)
- return rc;
-
- for (row = 0; row < kp->pdata->num_rows; row++) {
- dev_dbg(kp->dev, "new_data[%d] = %d\n", row,
- new_data[row]);
- state[row] = pmic8xxx_col_state(kp, new_data[row]);
+ for (row = 0; row < read_rows; row++) {
+ rc = regmap_read(kp->regmap, data_reg, &val);
+ if (rc)
+ return rc;
+ dev_dbg(kp->dev, "%d = %d\n", row, val);
+ state[row] = pmic8xxx_col_state(kp, val);
}
- return rc;
+ return 0;
}
static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
u16 *old_state)
{
int rc, read_rows;
- u8 scan_val;
+ unsigned int scan_val;
if (kp->pdata->num_rows < PM8XXX_MIN_ROWS)
read_rows = PM8XXX_MIN_ROWS;
@@ -235,14 +208,14 @@ static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
/* 4 * 32KHz clocks */
udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);
- rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
+ rc = regmap_read(kp->regmap, KEYP_SCAN, &scan_val);
if (rc < 0) {
dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
return rc;
}
scan_val &= 0xFE;
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ rc = regmap_write(kp->regmap, KEYP_SCAN, scan_val);
if (rc < 0)
dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
@@ -378,10 +351,10 @@ static irqreturn_t pmic8xxx_kp_stuck_irq(int irq, void *data)
static irqreturn_t pmic8xxx_kp_irq(int irq, void *data)
{
struct pmic8xxx_kp *kp = data;
- u8 ctrl_val, events;
+ unsigned int ctrl_val, events;
int rc;
- rc = pmic8xxx_kp_read(kp, &ctrl_val, KEYP_CTRL, 1);
+ rc = regmap_read(kp->regmap, KEYP_CTRL, &ctrl_val);
if (rc < 0) {
dev_err(kp->dev, "failed to read keyp_ctrl register\n");
return IRQ_HANDLED;
@@ -420,7 +393,7 @@ static int pmic8xxx_kpd_init(struct pmic8xxx_kp *kp)
ctrl_val |= (bits << KEYP_CTRL_SCAN_ROWS_SHIFT);
- rc = pmic8xxx_kp_write_u8(kp, ctrl_val, KEYP_CTRL);
+ rc = regmap_write(kp->regmap, KEYP_CTRL, ctrl_val);
if (rc < 0) {
dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
return rc;
@@ -438,7 +411,7 @@ static int pmic8xxx_kpd_init(struct pmic8xxx_kp *kp)
scan_val |= (cycles << KEYP_SCAN_ROW_HOLD_SHIFT);
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
+ rc = regmap_write(kp->regmap, KEYP_SCAN, scan_val);
if (rc)
dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
@@ -452,7 +425,7 @@ static int pmic8xxx_kp_enable(struct pmic8xxx_kp *kp)
kp->ctrl_reg |= KEYP_CTRL_KEYP_EN;
- rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
+ rc = regmap_write(kp->regmap, KEYP_CTRL, kp->ctrl_reg);
if (rc < 0)
dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
@@ -465,7 +438,7 @@ static int pmic8xxx_kp_disable(struct pmic8xxx_kp *kp)
kp->ctrl_reg &= ~KEYP_CTRL_KEYP_EN;
- rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
+ rc = regmap_write(kp->regmap, KEYP_CTRL, kp->ctrl_reg);
if (rc < 0)
return rc;
@@ -503,7 +476,7 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev)
const struct matrix_keymap_data *keymap_data;
struct pmic8xxx_kp *kp;
int rc;
- u8 ctrl_val;
+ unsigned int ctrl_val;
if (!pdata || !pdata->num_cols || !pdata->num_rows ||
pdata->num_cols > PM8XXX_MAX_COLS ||
@@ -547,6 +520,10 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev)
if (!kp)
return -ENOMEM;
+ kp->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+ if (!kp->regmap)
+ return -ENODEV;
+
platform_set_drvdata(pdev, kp);
kp->pdata = pdata;
@@ -621,7 +598,7 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev)
return rc;
}
- rc = pmic8xxx_kp_read_u8(kp, &ctrl_val, KEYP_CTRL);
+ rc = regmap_read(kp->regmap, KEYP_CTRL, &ctrl_val);
if (rc < 0) {
dev_err(&pdev->dev, "failed to read KEYP_CTRL register\n");
return rc;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 19:05:13 +0000