lkml.org 
[lkml]   [2014]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCHv3 09/15] ARM: at91: sam9rlek add touchscreen support through at91_adc
Date
at91_adc now supports reading a touchscreen for ADCs without a TSMR register.
Enable touchscreen support through at91_adc. This allows to use both a
touchscreen and the remaining ADC channel at the same time.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
---
arch/arm/mach-at91/board-sam9rlek.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index 604eecf6cd70..35d420247e25 100644
--- a/arch/arm/mach-at91/board-sam9rlek.c
+++ b/arch/arm/mach-at91/board-sam9rlek.c
@@ -18,6 +18,7 @@
#include <linux/clk.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
+#include <linux/platform_data/at91_adc.h>

#include <video/atmel_lcdc.h>

@@ -239,6 +240,17 @@ static struct at91_tsadcc_data ek_tsadcc_data = {


/*
+ * ADC + Touchscreen
+ */
+static struct at91_adc_data ek_adc_data = {
+ .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5),
+ .use_external_triggers = true,
+ .vref = 3300,
+ .touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
+};
+
+
+/*
* GPIO Buttons
*/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
@@ -312,6 +324,8 @@ static void __init ek_board_init(void)
at91_add_device_ac97(&ek_ac97_data);
/* Touch Screen Controller */
at91_add_device_tsadcc(&ek_tsadcc_data);
+ /* Touch Screen Controller + ADC */
+ at91_add_device_adc(&ek_adc_data);
/* LEDs */
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
/* Push Buttons */
--
1.8.3.2


\
 
 \ /
  Last update: 2014-04-15 12:41    [W:0.113 / U:2.744 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site