[PATCH] hx4700: fix hx4700 touchscreen pressure values

[Paul Parsons]

hx4700 touchscreen events were being dropped in ads7846_rx() because their pressure values consistently exceeded the platform maximum of 512; a sample of 256 pressure values were in the range 531 to 815. Doubling the platform maximum to 1024 allows hx4700 touchscreen events to pass the test.

Signed-off-by: Paul Parsons <lost.distance at yahoo.com>
---
--- linux-2.6.32-rc7/arch/arm/mach-pxa/hx4700.c.orig	2009-11-14 15:19:59.294682971 +0000
+++ linux-2.6.32-rc7/arch/arm/mach-pxa/hx4700.c	2009-11-14 15:20:14.677951232 +0000
@@ -604,7 +604,7 @@ static struct platform_device gpio_vbus 
 static const struct ads7846_platform_data tsc2046_info = {
 	.model            = 7846,
 	.vref_delay_usecs = 100,
-	.pressure_max     = 512,
+	.pressure_max     = 1024,
 	.debounce_max     = 10,
 	.debounce_tol     = 3,
 	.debounce_rep     = 1,