This patch adds a platform device definition for tnetv107x's touchscreen
controller.
Signed-off-by: Cyril Chemparathy <cyril@xxxxxx>
---
arch/arm/mach-davinci/devices-tnetv107x.c | 24 ++++++++++++++++++++++++
arch/arm/mach-davinci/include/mach/tnetv107x.h | 13 +++++++++++++
2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/devices-tnetv107x.c b/arch/arm/mach-davinci/devices-tnetv107x.c
index 086269f..018ca13 100644
--- a/arch/arm/mach-davinci/devices-tnetv107x.c
+++ b/arch/arm/mach-davinci/devices-tnetv107x.c
@@ -31,6 +31,7 @@
#define TNETV107X_TPTC0_BASE 0x01c10000
#define TNETV107X_TPTC1_BASE 0x01c10400
#define TNETV107X_WDOG_BASE 0x08086700
+#define TNETV107X_TSC_BASE 0x08088500
#define TNETV107X_SDIO0_BASE 0x08088700
#define TNETV107X_SDIO1_BASE 0x08088800
#define TNETV107X_KEYPAD_BASE 0x08088a00
@@ -323,6 +324,24 @@ static struct platform_device keypad_device = {
.resource = keypad_resources,
};
+static struct resource tsc_resources[] = {
+ {
+ .start = TNETV107X_TSC_BASE,
+ .end = TNETV107X_TSC_BASE + 0xff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_TNETV107X_TSC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device tsc_device = {
+ .name = "tnetv107x-ts",
+ .num_resources = ARRAY_SIZE(tsc_resources),
+ .resource = tsc_resources,
+};
+
void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
{
int i;
@@ -347,4 +366,9 @@ void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
keypad_device.dev.platform_data = info->keypad_config;
platform_device_register(&keypad_device);
}
+
+ if (info->tsc_config) {
+ tsc_device.dev.platform_data = info->tsc_config;
+ platform_device_register(&tsc_device);
+ }
}
diff --git a/arch/arm/mach-davinci/include/mach/tnetv107x.h b/arch/arm/mach-davinci/include/mach/tnetv107x.h
index 9f5350f..7e33148 100644
--- a/arch/arm/mach-davinci/include/mach/tnetv107x.h
+++ b/arch/arm/mach-davinci/include/mach/tnetv107x.h
@@ -47,11 +47,24 @@ struct tnetv107x_keypad_data {
u32 stable;
};
+struct tnetv107x_tsc_data {
+ int xres, yres;
+
+ /*
+ * Calibration info:
+ * out_x = (C0 * in_x + C1 * in_y + C2) / C6
+ * out_y = (C3 * in_x + C4 * in_y + C5) / C6
+ */
+#define TSC_CAL_SIZE 7
+ int calibration_data[TSC_CAL_SIZE];
+};
+
struct tnetv107x_device_info {
struct davinci_uart_config *serial_config;
struct davinci_mmc_config *mmc_config[2]; /* 2 controllers */
struct davinci_nand_pdata *nand_config[4]; /* 4 chipsels */
struct tnetv107x_keypad_data *keypad_config;
+ struct tnetv107x_tsc_data *tsc_config;
};
extern struct platform_device tnetv107x_wdt_device;
--
1.7.0.4
--
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