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>

diff --git a/arch/arm/configs/at91sam9g45_defconfig b/arch/arm/configs/at91sam9g45_defconfig
index e181a50..c6661a6 100644 (file)
--- a/arch/arm/configs/at91sam9g45_defconfig
+++ b/arch/arm/configs/at91sam9g45_defconfig
@@ -83,7 +83,6 @@ CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_ATMEL_MXT=m
-CONFIG_TOUCHSCREEN_ATMEL_TSADCC=y
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_ATMEL=y
@@ -146,6 +145,8 @@ CONFIG_DMADEVICES=y
 CONFIG_AT_HDMAC=y
 CONFIG_DMATEST=m
 # CONFIG_IOMMU_SUPPORT is not set
+CONFIG_IIO=y
+CONFIG_AT91_ADC=y
 CONFIG_EXT4_FS=y
 CONFIG_FANOTIFY=y
 CONFIG_VFAT_FS=y

diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index eb06348..d943363 100644 (file)
--- 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 ffef969..1ea6132 100644 (file)
--- 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();