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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2014-04-15 12:28:05 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2014-05-07 18:28:40 +0200
commit9d9716255f34daf04ab428cab254f8ffbab89fb7 (patch)
treeaf808e99160fab384544df2cc57560509e02d38c /arch/arm/mach-at91
parent3fb07e86e4bb2bff8539f4df23fa6b63777367a1 (diff)
downloadlinux-9d9716255f34daf04ab428cab254f8ffbab89fb7.tar.bz2
ARM: at91: sam9g45: switch from atmel_tsadcc to at91_adc
atmel_tsadcc is not allowing to use the remaining ADC channels while at91_adc does. Completely switch to at91_adc and remove the tsadcc platform_data for at91sam9g45 and at91sam9g45 based boards. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c53
-rw-r--r--arch/arm/mach-at91/board-sam9m10g45ek.c15
2 files changed, 3 insertions, 65 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index eb06348de330..d943363c1845 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -1133,58 +1133,7 @@ static void __init at91_add_device_rtc(void) {}
/* --------------------------------------------------------------------
- * Touchscreen
- * -------------------------------------------------------------------- */
-
-#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
-static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
-static struct at91_tsadcc_data tsadcc_data;
-
-static struct resource tsadcc_resources[] = {
- [0] = {
- .start = AT91SAM9G45_BASE_TSC,
- .end = AT91SAM9G45_BASE_TSC + SZ_16K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = NR_IRQS_LEGACY + AT91SAM9G45_ID_TSC,
- .end = NR_IRQS_LEGACY + AT91SAM9G45_ID_TSC,
- .flags = IORESOURCE_IRQ,
- }
-};
-
-static struct platform_device at91sam9g45_tsadcc_device = {
- .name = "atmel_tsadcc",
- .id = -1,
- .dev = {
- .dma_mask = &tsadcc_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- .platform_data = &tsadcc_data,
- },
- .resource = tsadcc_resources,
- .num_resources = ARRAY_SIZE(tsadcc_resources),
-};
-
-void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
-{
- if (!data)
- return;
-
- at91_set_gpio_input(AT91_PIN_PD20, 0); /* AD0_XR */
- at91_set_gpio_input(AT91_PIN_PD21, 0); /* AD1_XL */
- at91_set_gpio_input(AT91_PIN_PD22, 0); /* AD2_YT */
- at91_set_gpio_input(AT91_PIN_PD23, 0); /* AD3_TB */
-
- tsadcc_data = *data;
- platform_device_register(&at91sam9g45_tsadcc_device);
-}
-#else
-void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
-#endif
-
-
-/* --------------------------------------------------------------------
- * ADC
+ * ADC and touchscreen
* -------------------------------------------------------------------- */
#if IS_ENABLED(CONFIG_AT91_ADC)
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index ffef9698d2c1..1ea61328f30d 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -301,16 +301,7 @@ static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
/*
- * Touchscreen
- */
-static struct at91_tsadcc_data ek_tsadcc_data = {
- .adc_clock = 300000,
- .pendet_debounce = 0x0d,
- .ts_sample_hold_time = 0x0a,
-};
-
-/*
- * ADCs
+ * ADCs and touchscreen
*/
static struct at91_adc_data ek_adc_data = {
.channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
@@ -487,9 +478,7 @@ static void __init ek_board_init(void)
at91_add_device_isi(&isi_data, true);
/* LCD Controller */
at91_add_device_lcdc(&ek_lcdc_data);
- /* Touch Screen */
- at91_add_device_tsadcc(&ek_tsadcc_data);
- /* ADC */
+ /* ADC and touchscreen */
at91_add_device_adc(&ek_adc_data);
/* Push Buttons */
ek_add_device_buttons();