diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index fe8902e1f010..52032ef3d3ab 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -199,122 +199,6 @@
#define MXT_MAX_FINGER 10
-/* Initial register values recommended from chip vendor */
-static const u8 init_vals_ver_20[] = {
- /* MXT_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* MXT_GEN_ACQUIRE(8) */
- 0x08, 0x05, 0x05, 0x00, 0x00, 0x00, 0x05, 0x14,
- /* MXT_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x64,
- /* MXT_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* MXT_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00,
- /* MXT_PROCI_GRIPFACE(20) */
- 0x00, 0x64, 0x64, 0x64, 0x64, 0x00, 0x00, 0x1e, 0x14, 0x04,
- 0x1e, 0x00,
- /* MXT_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x19, 0x00, 0xe7, 0xff, 0x04, 0x32, 0x00,
- 0x01, 0x0a, 0x0f, 0x14, 0x00, 0x00, 0xe8,
- /* MXT_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- /* MXT_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x04, 0x08,
-};
-
-static const u8 init_vals_ver_21[] = {
- /* MXT_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* MXT_GEN_ACQUIRE(8) */
- 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
- /* MXT_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* MXT_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_GRIPFACE(20) */
- 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
- 0x0f, 0x0a,
- /* MXT_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
- 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
- /* MXT_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- /* MXT_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
-static const u8 init_vals_ver_22[] = {
- /* MXT_GEN_COMMAND(6) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_GEN_POWER(7) */
- 0x20, 0xff, 0x32,
- /* MXT_GEN_ACQUIRE(8) */
- 0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
- /* MXT_TOUCH_MULTI(9) */
- 0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
- 0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* MXT_TOUCH_KEYARRAY(15) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00,
- /* MXT_SPT_GPIOPWM(19) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_GRIPFACE(20) */
- 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
- 0x0f, 0x0a,
- /* MXT_PROCG_NOISE(22) */
- 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
- 0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
- /* MXT_TOUCH_PROXIMITY(23) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_ONETOUCH(24) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_SELFTEST(25) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00,
- /* MXT_PROCI_TWOTOUCH(27) */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- /* MXT_SPT_CTECONFIG(28) */
- 0x00, 0x00, 0x00, 0x08, 0x10, 0x00,
-};
-
struct mxt_info {
u8 family_id;
u8 variant_id;
@@ -714,26 +598,15 @@ end:
static int mxt_check_reg_init(struct mxt_data *data)
{
+ const struct mxt_platform_data *pdata = data->pdata;
struct mxt_object *object;
struct device *dev = &data->client->dev;
int index = 0;
- int i, j;
- u8 version = data->info.version;
- u8 *init_vals;
+ int i, j, config_offset;
- switch (version) {
- case MXT_VER_20:
- init_vals = (u8 *)init_vals_ver_20;
- break;
- case MXT_VER_21:
- init_vals = (u8 *)init_vals_ver_21;
- break;
- case MXT_VER_22:
- init_vals = (u8 *)init_vals_ver_22;
- break;
- default:
- dev_err(dev, "Firmware version %d doesn't support\n", version);
- return -EINVAL;
+ if (!pdata->config) {
+ dev_dbg(dev, "No cfg data defined, skipping reg init\n");
+ return 0;
}
for (i = 0; i < data->info.object_num; i++) {
@@ -742,10 +615,15 @@ static int mxt_check_reg_init(struct mxt_data *data)
if (!mxt_object_writable(object->type))
continue;
- for (j = 0; j < object->size + 1; j++)
+ for (j = 0; j < object->size + 1; j++) {
+ config_offset = index + j;
+ if (config_offset > pdata->config_length) {
+ dev_err(dev, "Not enough config data!\n");
+ return -EINVAL;
+ }
mxt_write_object(data, object->type, j,
- init_vals[index + j]);
-
+ pdata->config[config_offset]);
+ }
index += object->size + 1;
}
diff --git a/include/linux/i2c/atmel_mxt_ts.h b/include/linux/i2c/atmel_mxt_ts.h
index 671967cf4d1a..b8297685f489 100644
--- a/include/linux/i2c/atmel_mxt_ts.h
+++ b/include/linux/i2c/atmel_mxt_ts.h
@@ -13,6 +13,8 @@
#ifndef __LINUX_ATMEL_MXT_TS_H
#define __LINUX_ATMEL_MXT_TS_H
+#include <linux/types.h>
+
/* Orient */
#define MXT_NORMAL 0x0
#define MXT_DIAGONAL 0x1
@@ -25,6 +27,9 @@
/* The platform data for the Atmel maXTouch touchscreen driver */
struct mxt_platform_data {
+ const u8 *config;
+ size_t config_length;
+
unsigned int x_line;
unsigned int y_line;
unsigned int x_size;