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authorTodd Fischer <todd.fischer@ridgerun.com>2010-04-05 17:53:13 -0600
committerSamuel Ortiz <sameo@linux.intel.com>2010-05-28 01:37:39 +0200
commitda1e368032d7ff241b9cf1059fa059d781cfeba7 (patch)
treeea40f15b2b0b2ae70d2dabcce300c7d2073c45ae /arch
parentb03b4d7cdd8f18395494478634707c6f132080d6 (diff)
downloadblackbird-op-linux-da1e368032d7ff241b9cf1059fa059d781cfeba7.tar.gz
blackbird-op-linux-da1e368032d7ff241b9cf1059fa059d781cfeba7.zip
davinci: da850 TPS6507x touch screen driver board data
The touch screen controller in the TPS6507x chip needs values that are dependent on the characteristics of the touch screen hardware being used in the board design. In addition, the board provides version information that is exposed via the kernel input sub-system. Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-davinci/board-da850-evm.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index 95adfd42d0e6..2ec3095ffb7b 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -25,6 +25,8 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/regulator/machine.h>
+#include <linux/mfd/tps6507x.h>
+#include <linux/input/tps6507x-ts.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -534,8 +536,18 @@ struct regulator_init_data tps65070_regulator_data[] = {
},
};
+static struct touchscreen_init_data tps6507x_touchscreen_data = {
+ .poll_period = 30, /* ms between touch samples */
+ .min_pressure = 0x30, /* minimum pressure to trigger touch */
+ .vref = 0, /* turn off vref when not using A/D */
+ .vendor = 0, /* /sys/class/input/input?/id/vendor */
+ .product = 65070, /* /sys/class/input/input?/id/product */
+ .version = 0x100, /* /sys/class/input/input?/id/version */
+};
+
static struct tps6507x_board tps_board = {
.tps6507x_pmic_init_data = &tps65070_regulator_data[0],
+ .tps6507x_ts_init_data = &tps6507x_touchscreen_data,
};
static struct i2c_board_info __initdata da850evm_tps65070_info[] = {
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