diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/touchscreen/ilitek_ts_i2c.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c index e1849185e18c..5a807ad72319 100644 --- a/drivers/input/touchscreen/ilitek_ts_i2c.c +++ b/drivers/input/touchscreen/ilitek_ts_i2c.c @@ -37,6 +37,8 @@ #define ILITEK_TP_CMD_GET_MCU_VER 0x61 #define ILITEK_TP_CMD_GET_IC_MODE 0xC0 +#define ILITEK_TP_I2C_REPORT_ID 0x48 + #define REPORT_COUNT_ADDRESS 61 #define ILITEK_SUPPORT_MAX_POINT 40 @@ -163,6 +165,11 @@ static int ilitek_process_and_report_v6(struct ilitek_ts_data *ts) return error; } + if (buf[0] != ILITEK_TP_I2C_REPORT_ID) { + dev_err(dev, "get touch info failed. Wrong id: 0x%02X\n", buf[0]); + return -EINVAL; + } + report_max_point = buf[REPORT_COUNT_ADDRESS]; if (report_max_point > ts->max_tp) { dev_err(dev, "FW report max point:%d > panel info. max:%d\n", |