diff options
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/iqs5xx.c | 40 |
1 files changed, 8 insertions, 32 deletions
diff --git a/drivers/input/touchscreen/iqs5xx.c b/drivers/input/touchscreen/iqs5xx.c index f36d170e14b2..0920516124c7 100644 --- a/drivers/input/touchscreen/iqs5xx.c +++ b/drivers/input/touchscreen/iqs5xx.c @@ -36,9 +36,6 @@ #define IQS5XX_PROD_NUM_IQS550 40 #define IQS5XX_PROD_NUM_IQS572 58 #define IQS5XX_PROD_NUM_IQS525 52 -#define IQS5XX_PROJ_NUM_A000 0 -#define IQS5XX_PROJ_NUM_B000 15 -#define IQS5XX_MAJOR_VER_MIN 2 #define IQS5XX_SHOW_RESET BIT(7) #define IQS5XX_ACK_RESET BIT(7) @@ -87,7 +84,6 @@ #define IQS5XX_BL_CMD_CRC 0x03 #define IQS5XX_BL_BLK_LEN_MAX 64 #define IQS5XX_BL_ID 0x0200 -#define IQS5XX_BL_STATUS_AVAIL 0xA5 #define IQS5XX_BL_STATUS_NONE 0xEE #define IQS5XX_BL_CRC_PASS 0x00 #define IQS5XX_BL_CRC_FAIL 0x01 @@ -573,7 +569,7 @@ static int iqs5xx_dev_init(struct i2c_client *client) * the missing zero is prepended). */ buf[0] = 0; - dev_id_info = (struct iqs5xx_dev_id_info *)&buf[(buf[1] > 0) ? 0 : 1]; + dev_id_info = (struct iqs5xx_dev_id_info *)&buf[buf[1] ? 0 : 1]; switch (be16_to_cpu(dev_id_info->prod_num)) { case IQS5XX_PROD_NUM_IQS550: @@ -586,36 +582,16 @@ static int iqs5xx_dev_init(struct i2c_client *client) return -EINVAL; } - switch (be16_to_cpu(dev_id_info->proj_num)) { - case IQS5XX_PROJ_NUM_A000: - dev_err(&client->dev, "Unsupported project number: %u\n", - be16_to_cpu(dev_id_info->proj_num)); - return iqs5xx_bl_open(client); - case IQS5XX_PROJ_NUM_B000: - break; - default: - dev_err(&client->dev, "Unrecognized project number: %u\n", - be16_to_cpu(dev_id_info->proj_num)); - return -EINVAL; - } - - if (dev_id_info->major_ver < IQS5XX_MAJOR_VER_MIN) { - dev_err(&client->dev, "Unsupported major version: %u\n", - dev_id_info->major_ver); + /* + * With the product number recognized yet shifted by one byte, open the + * bootloader and wait for user space to convert the A000 device into a + * B000 device via new firmware. + */ + if (buf[1]) { + dev_err(&client->dev, "Opening bootloader for A000 device\n"); return iqs5xx_bl_open(client); } - switch (dev_id_info->bl_status) { - case IQS5XX_BL_STATUS_AVAIL: - case IQS5XX_BL_STATUS_NONE: - break; - default: - dev_err(&client->dev, - "Unrecognized bootloader status: 0x%02X\n", - dev_id_info->bl_status); - return -EINVAL; - } - error = iqs5xx_read_burst(client, IQS5XX_EXP_FILE, iqs5xx->exp_file, sizeof(iqs5xx->exp_file)); if (error) |