Input: atmel_mxt_ts - allow board code to suppliy controller config

As there is no common configuration settings that would work in every
situation, remove the fixed config data from driver code and add
config data to platform data.

Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 13 insertions, 135 deletions

diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index fe8902e..52032ef 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;
 	}