aboutsummaryrefslogtreecommitdiff
path: root/include/linux/spi
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/ads7846.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 3387e44dfd1..a44fa7a02bd 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -16,6 +16,14 @@ struct ads7846_platform_data {
u16 vref_delay_usecs; /* 0 for external vref; etc */
int keep_vref_on:1; /* set to keep vref on for differential
* measurements as well */
+
+ /* Settling time of the analog signals; a function of Vcc and the
+ * capacitance on the X/Y drivers. If set to non-zero, two samples
+ * are taken with settle_delay us apart, and the second one is used.
+ * ~150 uSec with 0.01uF caps.
+ */
+ u16 settle_delay_usecs;
+
u16 x_plate_ohms;
u16 y_plate_ohms;