Explicitly show what the value we supply for the touchscreen resolution
when it can't be detected. -1 is hard to compare with when unsigned short
type is in use. The change will help to avoid signed vs. unsigned error
prone comparisons.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/edt-ft5x06.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index cb67104c6934..a05c6b597d43 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -23,6 +23,7 @@
#include <linux/input/touchscreen.h>
#include <linux/irq.h>
#include <linux/kernel.h>
+#include <linux/limits.h>
#include <linux/module.h>
#include <linux/ratelimit.h>
#include <linux/regulator/consumer.h>
@@ -983,8 +984,8 @@ edt_ft5x06_ts_get_parameters(struct edt_ft5x06_ts_data *tsdata)
tsdata->num_y = edt_ft5x06_register_read(tsdata,
reg_addr->reg_num_y);
} else {
- tsdata->num_x = -1;
- tsdata->num_y = -1;
+ tsdata->num_x = U16_MAX;
+ tsdata->num_y = U16_MAX;
}
}
--
2.25.1
