Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

49 files changed, 182 insertions, 283 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index b2d2cf4dc05..45b55e0f0db 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -167,7 +167,6 @@ config SOC_AT91SAM9X5
 	select HAVE_AT91_DBGU0
 	select HAVE_FB_ATMEL
 	select SOC_AT91SAM9
-	select AT91_USE_OLD_CLK
 	select HAVE_AT91_UTMI
 	select HAVE_AT91_SMD
 	select HAVE_AT91_USB_CLK
@@ -183,7 +182,6 @@ config SOC_AT91SAM9N12
 	select HAVE_AT91_DBGU0
 	select HAVE_FB_ATMEL
 	select SOC_AT91SAM9
-	select AT91_USE_OLD_CLK
 	select HAVE_AT91_USB_CLK
 	help
 	  Select this if you are using Atmel's AT91SAM9N12 SoC.
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index f3f19f21352..3f4bb58aea5 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -15,6 +15,7 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/gpio.h>
+#include <linux/gpio/driver.h>
 #include <linux/platform_device.h>
 #include <linux/i2c-gpio.h>
 
@@ -25,6 +26,7 @@
 
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 /* --------------------------------------------------------------------
@@ -923,7 +925,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -962,7 +963,14 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
+};
+
+static struct gpiod_lookup_table uart0_gpios_table = {
+	.dev_id = "atmel_usart",
+	.table = {
+		GPIO_LOOKUP("pioA", 21, "rts", GPIO_ACTIVE_LOW),
+		{ },
+	},
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -993,7 +1001,7 @@ static inline void configure_usart0_pins(unsigned pins)
 		 * We need to drive the pin manually. The serial driver will driver
 		 * this to high when initializing.
 		 */
-		uart0_data.rts_gpio = AT91_PIN_PA21;
+		gpiod_add_lookup_table(&uart0_gpios_table);
 	}
 }
 
@@ -1013,7 +1021,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -1065,7 +1072,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
@@ -1109,7 +1115,6 @@ static struct resource uart3_resources[] = {
 static struct atmel_uart_data uart3_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart3_dmamask = DMA_BIT_MASK(32);
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 7cd6f19945e..ef88e0fe4e8 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -24,12 +24,11 @@
 #include <mach/at91sam9260_matrix.h>
 #include <mach/at91_matrix.h>
 #include <mach/at91sam9_smc.h>
-#include <mach/at91_adc.h>
 #include <mach/hardware.h>
 
 #include "board.h"
 #include "generic.h"
-
+#include "gpio.h"
 
 /* --------------------------------------------------------------------
  *  USB Host
@@ -820,7 +819,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -859,7 +857,6 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -911,7 +908,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -955,7 +951,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
@@ -999,7 +994,6 @@ static struct resource uart3_resources[] = {
 static struct atmel_uart_data uart3_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart3_dmamask = DMA_BIT_MASK(32);
@@ -1043,7 +1037,6 @@ static struct resource uart4_resources[] = {
 static struct atmel_uart_data uart4_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart4_dmamask = DMA_BIT_MASK(32);
@@ -1082,7 +1075,6 @@ static struct resource uart5_resources[] = {
 static struct atmel_uart_data uart5_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart5_dmamask = DMA_BIT_MASK(32);
@@ -1325,13 +1317,6 @@ static struct at91_adc_trigger at91_adc_triggers[] = {
 	},
 };
 
-static struct at91_adc_reg_desc at91_adc_register_g20 = {
-	.channel_base = AT91_ADC_CHR(0),
-	.drdy_mask = AT91_ADC_DRDY,
-	.status_register = AT91_ADC_SR,
-	.trigger_register = AT91_ADC_MR,
-};
-
 void __init at91_add_device_adc(struct at91_adc_data *data)
 {
 	if (!data)
@@ -1349,9 +1334,7 @@ void __init at91_add_device_adc(struct at91_adc_data *data)
 	if (data->use_external_triggers)
 		at91_set_A_periph(AT91_PIN_PA22, 0);
 
-	data->num_channels = 4;
 	data->startup_time = 10;
-	data->registers = &at91_adc_register_g20;
 	data->trigger_number = 4;
 	data->trigger_list = at91_adc_triggers;
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 80e35895d28..29baacb5c35 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -29,7 +29,7 @@
 
 #include "board.h"
 #include "generic.h"
-
+#include "gpio.h"
 
 /* --------------------------------------------------------------------
  *  USB Host
@@ -881,7 +881,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -920,7 +919,6 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -964,7 +962,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -1008,7 +1005,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 43d53d6156d..309390d8e2f 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -28,6 +28,7 @@
 
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 /* --------------------------------------------------------------------
@@ -1325,7 +1326,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -1364,7 +1364,6 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -1408,7 +1407,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -1452,7 +1450,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 5e6f498db0a..9d3d544ac19 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -182,7 +182,7 @@ static struct clk vdec_clk = {
 static struct clk adc_op_clk = {
 	.name		= "adc_op_clk",
 	.type		= CLK_TYPE_PERIPHERAL,
-	.rate_hz	= 13200000,
+	.rate_hz	= 300000,
 };
 
 /* AES/TDES/SHA clock - Only for sam9m11/sam9g56 */
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index dab362c0648..391ab6bb536 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -25,7 +25,6 @@
 #include <linux/fb.h>
 #include <video/atmel_lcdc.h>
 
-#include <mach/at91_adc.h>
 #include <mach/at91sam9g45.h>
 #include <mach/at91sam9g45_matrix.h>
 #include <mach/at91_matrix.h>
@@ -39,6 +38,7 @@
 #include "board.h"
 #include "generic.h"
 #include "clock.h"
+#include "gpio.h"
 
 
 /* --------------------------------------------------------------------
@@ -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)
@@ -1236,13 +1185,6 @@ static struct at91_adc_trigger at91_adc_triggers[] = {
 	},
 };
 
-static struct at91_adc_reg_desc at91_adc_register_g45 = {
-	.channel_base = AT91_ADC_CHR(0),
-	.drdy_mask = AT91_ADC_DRDY,
-	.status_register = AT91_ADC_SR,
-	.trigger_register = 0x08,
-};
-
 void __init at91_add_device_adc(struct at91_adc_data *data)
 {
 	if (!data)
@@ -1268,9 +1210,7 @@ void __init at91_add_device_adc(struct at91_adc_data *data)
 	if (data->use_external_triggers)
 		at91_set_A_periph(AT91_PIN_PD28, 0);
 
-	data->num_channels = 8;
 	data->startup_time = 40;
-	data->registers = &at91_adc_register_g45;
 	data->trigger_number = 4;
 	data->trigger_list = at91_adc_triggers;
 
@@ -1588,7 +1528,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -1627,7 +1566,6 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -1671,7 +1609,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -1715,7 +1652,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
@@ -1759,7 +1695,6 @@ static struct resource uart3_resources[] = {
 static struct atmel_uart_data uart3_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart3_dmamask = DMA_BIT_MASK(32);
diff --git a/arch/arm/mach-at91/at91sam9n12.c b/arch/arm/mach-at91/at91sam9n12.c
index f2ea7b0a02d..c8988fe5ff7 100644
--- a/arch/arm/mach-at91/at91sam9n12.c
+++ b/arch/arm/mach-at91/at91sam9n12.c
@@ -19,9 +19,10 @@
 #include "board.h"
 #include "soc.h"
 #include "generic.h"
-#include "clock.h"
 #include "sam9_smc.h"
 
+#if defined(CONFIG_OLD_CLK_AT91)
+#include "clock.h"
 /* --------------------------------------------------------------------
  *  Clocks
  * -------------------------------------------------------------------- */
@@ -215,6 +216,9 @@ static void __init at91sam9n12_register_clocks(void)
 			 ARRAY_SIZE(periph_clocks_lookups));
 
 }
+#else
+#define at91sam9n12_register_clocks NULL
+#endif
 
 /* --------------------------------------------------------------------
  *  AT91SAM9N12 processor initialization
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 57f12d86c0e..a79960f57e6 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -153,6 +153,11 @@ static struct clk ac97_clk = {
 	.pmc_mask	= 1 << AT91SAM9RL_ID_AC97C,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
+static struct clk adc_op_clk = {
+	.name		= "adc_op_clk",
+	.type		= CLK_TYPE_PERIPHERAL,
+	.rate_hz	= 1000000,
+};
 
 static struct clk *periph_clocks[] __initdata = {
 	&pioA_clk,
@@ -178,6 +183,7 @@ static struct clk *periph_clocks[] __initdata = {
 	&udphs_clk,
 	&lcdc_clk,
 	&ac97_clk,
+	&adc_op_clk,
 	// irq0
 };
 
@@ -216,6 +222,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),
 	CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk),
 	CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioD_clk),
+	CLKDEV_CON_ID("adc_clk", &tsc_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 428fc412aaf..0b1d71a7d9b 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -23,9 +23,11 @@
 #include <mach/at91sam9_smc.h>
 #include <mach/hardware.h>
 #include <linux/platform_data/dma-atmel.h>
+#include <linux/platform_data/at91_adc.h>
 
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 /* --------------------------------------------------------------------
@@ -608,14 +610,13 @@ static void __init at91_add_device_tc(void) { }
 
 
 /* --------------------------------------------------------------------
- *  Touchscreen
+ *  ADC and 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;
+#if IS_ENABLED(CONFIG_AT91_ADC)
+static struct at91_adc_data adc_data;
 
-static struct resource tsadcc_resources[] = {
+static struct resource adc_resources[] = {
 	[0] = {
 		.start	= AT91SAM9RL_BASE_TSC,
 		.end	= AT91SAM9RL_BASE_TSC + SZ_16K - 1,
@@ -628,36 +629,71 @@ static struct resource tsadcc_resources[] = {
 	}
 };
 
-static struct platform_device at91sam9rl_tsadcc_device = {
-	.name		= "atmel_tsadcc",
-	.id		= -1,
-	.dev		= {
-				.dma_mask		= &tsadcc_dmamask,
-				.coherent_dma_mask	= DMA_BIT_MASK(32),
-				.platform_data		= &tsadcc_data,
+static struct platform_device at91_adc_device = {
+	.name           = "at91sam9rl-adc",
+	.id             = -1,
+	.dev            = {
+		.platform_data  = &adc_data,
 	},
-	.resource	= tsadcc_resources,
-	.num_resources	= ARRAY_SIZE(tsadcc_resources),
+	.resource       = adc_resources,
+	.num_resources  = ARRAY_SIZE(adc_resources),
 };
 
-void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
+static struct at91_adc_trigger at91_adc_triggers[] = {
+	[0] = {
+		.name = "external-rising",
+		.value = 1,
+		.is_external = true,
+	},
+	[1] = {
+		.name = "external-falling",
+		.value = 2,
+		.is_external = true,
+	},
+	[2] = {
+		.name = "external-any",
+		.value = 3,
+		.is_external = true,
+	},
+	[3] = {
+		.name = "continuous",
+		.value = 6,
+		.is_external = false,
+	},
+};
+
+void __init at91_add_device_adc(struct at91_adc_data *data)
 {
 	if (!data)
 		return;
 
-	at91_set_A_periph(AT91_PIN_PA17, 0);	/* AD0_XR */
-	at91_set_A_periph(AT91_PIN_PA18, 0);	/* AD1_XL */
-	at91_set_A_periph(AT91_PIN_PA19, 0);	/* AD2_YT */
-	at91_set_A_periph(AT91_PIN_PA20, 0);	/* AD3_TB */
-
-	tsadcc_data = *data;
-	platform_device_register(&at91sam9rl_tsadcc_device);
+	if (test_bit(0, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PA17, 0);
+	if (test_bit(1, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PA18, 0);
+	if (test_bit(2, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PA19, 0);
+	if (test_bit(3, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PA20, 0);
+	if (test_bit(4, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PD6, 0);
+	if (test_bit(5, &data->channels_used))
+		at91_set_A_periph(AT91_PIN_PD7, 0);
+
+	if (data->use_external_triggers)
+		at91_set_A_periph(AT91_PIN_PB15, 0);
+
+	data->startup_time = 40;
+	data->trigger_number = 4;
+	data->trigger_list = at91_adc_triggers;
+
+	adc_data = *data;
+	platform_device_register(&at91_adc_device);
 }
 #else
-void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
+void __init at91_add_device_adc(struct at91_adc_data *data) {}
 #endif
 
-
 /* --------------------------------------------------------------------
  *  RTC
  * -------------------------------------------------------------------- */
@@ -957,7 +993,6 @@ static struct resource dbgu_resources[] = {
 static struct atmel_uart_data dbgu_data = {
 	.use_dma_tx	= 0,
 	.use_dma_rx	= 0,		/* DBGU not capable of receive DMA */
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
@@ -996,7 +1031,6 @@ static struct resource uart0_resources[] = {
 static struct atmel_uart_data uart0_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart0_dmamask = DMA_BIT_MASK(32);
@@ -1048,7 +1082,6 @@ static struct resource uart1_resources[] = {
 static struct atmel_uart_data uart1_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart1_dmamask = DMA_BIT_MASK(32);
@@ -1092,7 +1125,6 @@ static struct resource uart2_resources[] = {
 static struct atmel_uart_data uart2_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart2_dmamask = DMA_BIT_MASK(32);
@@ -1136,7 +1168,6 @@ static struct resource uart3_resources[] = {
 static struct atmel_uart_data uart3_data = {
 	.use_dma_tx	= 1,
 	.use_dma_rx	= 1,
-	.rts_gpio	= -EINVAL,
 };
 
 static u64 uart3_dmamask = DMA_BIT_MASK(32);
diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index 9ad781d5ee7..028268ff372 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -19,9 +19,10 @@
 #include "board.h"
 #include "soc.h"
 #include "generic.h"
-#include "clock.h"
 #include "sam9_smc.h"
 
+#if defined(CONFIG_OLD_CLK_AT91)
+#include "clock.h"
 /* --------------------------------------------------------------------
  *  Clocks
  * -------------------------------------------------------------------- */
@@ -313,6 +314,9 @@ static void __init at91sam9x5_register_clocks(void)
 	clk_register(&pck0);
 	clk_register(&pck1);
 }
+#else
+#define at91sam9x5_register_clocks	NULL
+#endif
 
 /* --------------------------------------------------------------------
  *  AT91SAM9x5 processor initialization
diff --git a/arch/arm/mach-at91/board-1arm.c b/arch/arm/mach-at91/board-1arm.c
index 35ab632bbf6..3f6dbcc3402 100644
--- a/arch/arm/mach-at91/board-1arm.c
+++ b/arch/arm/mach-at91/board-1arm.c
@@ -39,7 +39,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
-
+#include "gpio.h"
 
 static void __init onearm_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-afeb-9260v1.c b/arch/arm/mach-at91/board-afeb-9260v1.c
index f95e31cda4b..597c649170a 100644
--- a/arch/arm/mach-at91/board-afeb-9260v1.c
+++ b/arch/arm/mach-at91/board-afeb-9260v1.c
@@ -46,6 +46,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init afeb9260_init_early(void)
diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c
index 112e867c4ab..a30502c8d37 100644
--- a/arch/arm/mach-at91/board-cam60.c
+++ b/arch/arm/mach-at91/board-cam60.c
@@ -44,6 +44,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init cam60_init_early(void)
diff --git a/arch/arm/mach-at91/board-carmeva.c b/arch/arm/mach-at91/board-carmeva.c
index 92983050a9b..47313d3ee03 100644
--- a/arch/arm/mach-at91/board-carmeva.c
+++ b/arch/arm/mach-at91/board-carmeva.c
@@ -39,6 +39,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init carmeva_init_early(void)
diff --git a/arch/arm/mach-at91/board-cpu9krea.c b/arch/arm/mach-at91/board-cpu9krea.c
index 008527efdbc..2037f78c84e 100644
--- a/arch/arm/mach-at91/board-cpu9krea.c
+++ b/arch/arm/mach-at91/board-cpu9krea.c
@@ -48,6 +48,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 static void __init cpu9krea_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-cpuat91.c b/arch/arm/mach-at91/board-cpuat91.c
index 42f1353a4ba..c094350c931 100644
--- a/arch/arm/mach-at91/board-cpuat91.c
+++ b/arch/arm/mach-at91/board-cpuat91.c
@@ -43,6 +43,8 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
+
 
 static struct gpio_led cpuat91_leds[] = {
 	{
diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c
index e5fde215225..0e35a45cf8d 100644
--- a/arch/arm/mach-at91/board-csb337.c
+++ b/arch/arm/mach-at91/board-csb337.c
@@ -42,7 +42,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
-
+#include "gpio.h"
 
 static void __init csb337_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-csb637.c b/arch/arm/mach-at91/board-csb637.c
index fdf11061c57..18d027f529a 100644
--- a/arch/arm/mach-at91/board-csb637.c
+++ b/arch/arm/mach-at91/board-csb637.c
@@ -39,6 +39,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init csb637_init_early(void)
diff --git a/arch/arm/mach-at91/board-eb9200.c b/arch/arm/mach-at91/board-eb9200.c
index f9be8161bbf..aa457a8b22f 100644
--- a/arch/arm/mach-at91/board-eb9200.c
+++ b/arch/arm/mach-at91/board-eb9200.c
@@ -38,6 +38,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init eb9200_init_early(void)
diff --git a/arch/arm/mach-at91/board-ecbat91.c b/arch/arm/mach-at91/board-ecbat91.c
index b2fcd71262b..ede1373ccab 100644
--- a/arch/arm/mach-at91/board-ecbat91.c
+++ b/arch/arm/mach-at91/board-ecbat91.c
@@ -42,6 +42,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ecb_at91init_early(void)
diff --git a/arch/arm/mach-at91/board-eco920.c b/arch/arm/mach-at91/board-eco920.c
index 77de410efc9..4e75321a8f2 100644
--- a/arch/arm/mach-at91/board-eco920.c
+++ b/arch/arm/mach-at91/board-eco920.c
@@ -31,6 +31,8 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
+
 
 static void __init eco920_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-flexibity.c b/arch/arm/mach-at91/board-flexibity.c
index 737c0856362..68f1ab6bd08 100644
--- a/arch/arm/mach-at91/board-flexibity.c
+++ b/arch/arm/mach-at91/board-flexibity.c
@@ -37,6 +37,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 static void __init flexibity_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-foxg20.c b/arch/arm/mach-at91/board-foxg20.c
index c20a870ea9c..8b22c60bb23 100644
--- a/arch/arm/mach-at91/board-foxg20.c
+++ b/arch/arm/mach-at91/board-foxg20.c
@@ -47,6 +47,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 /*
  * The FOX Board G20 hardware comes as the "Netus G20" board with
diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c
index 416bae8435e..b729dd1271b 100644
--- a/arch/arm/mach-at91/board-gsia18s.c
+++ b/arch/arm/mach-at91/board-gsia18s.c
@@ -39,6 +39,7 @@
 #include "generic.h"
 #include "gsia18s.h"
 #include "stamp9g20.h"
+#include "gpio.h"
 
 static void __init gsia18s_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-kafa.c b/arch/arm/mach-at91/board-kafa.c
index 88e2f5d2d16..93b1df42f63 100644
--- a/arch/arm/mach-at91/board-kafa.c
+++ b/arch/arm/mach-at91/board-kafa.c
@@ -39,6 +39,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init kafa_init_early(void)
diff --git a/arch/arm/mach-at91/board-kb9202.c b/arch/arm/mach-at91/board-kb9202.c
index 0c519d9ebff..d58d36225e0 100644
--- a/arch/arm/mach-at91/board-kb9202.c
+++ b/arch/arm/mach-at91/board-kb9202.c
@@ -42,6 +42,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init kb9202_init_early(void)
diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c
index 5f25fa54eb9..b48d95ec515 100644
--- a/arch/arm/mach-at91/board-pcontrol-g20.c
+++ b/arch/arm/mach-at91/board-pcontrol-g20.c
@@ -37,6 +37,7 @@
 #include "sam9_smc.h"
 #include "generic.h"
 #include "stamp9g20.h"
+#include "gpio.h"
 
 
 static void __init pcontrol_g20_init_early(void)
diff --git a/arch/arm/mach-at91/board-picotux200.c b/arch/arm/mach-at91/board-picotux200.c
index ab2b2ec36c1..2c0f2d554d8 100644
--- a/arch/arm/mach-at91/board-picotux200.c
+++ b/arch/arm/mach-at91/board-picotux200.c
@@ -43,6 +43,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init picotux200_init_early(void)
diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c
index 8b17dadc1ab..953cea41675 100644
--- a/arch/arm/mach-at91/board-rm9200ek.c
+++ b/arch/arm/mach-at91/board-rm9200ek.c
@@ -45,6 +45,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
diff --git a/arch/arm/mach-at91/board-rsi-ews.c b/arch/arm/mach-at91/board-rsi-ews.c
index f6d7f1958c7..f28e8b74df4 100644
--- a/arch/arm/mach-at91/board-rsi-ews.c
+++ b/arch/arm/mach-at91/board-rsi-ews.c
@@ -31,6 +31,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 static void __init rsi_ews_init_early(void)
 {
diff --git a/arch/arm/mach-at91/board-sam9-l9260.c b/arch/arm/mach-at91/board-sam9-l9260.c
index 43ee4dc43b5..d24dda67e2d 100644
--- a/arch/arm/mach-at91/board-sam9-l9260.c
+++ b/arch/arm/mach-at91/board-sam9-l9260.c
@@ -43,6 +43,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c
index f4f8735315d..65dea12d685 100644
--- a/arch/arm/mach-at91/board-sam9260ek.c
+++ b/arch/arm/mach-at91/board-sam9260ek.c
@@ -49,6 +49,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 473546b9408..4637432de08 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -53,6 +53,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 2f931915c80..cd2726ee5ad 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -52,6 +52,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index f9cd1f2c714..e1be6e25b38 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -50,6 +50,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 /*
  * board revision encoding
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index ef39078c8ce..1ea61328f30 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -50,6 +50,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
@@ -300,21 +301,13 @@ 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),
 	.use_external_triggers = true,
 	.vref = 3300,
+	.touchscreen_type = ATMEL_ADC_TOUCHSCREEN_4WIRE,
 };
 
 /*
@@ -485,9 +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();
diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index 604eecf6cd7..b64648b4a1f 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>
 
@@ -38,6 +39,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init ek_init_early(void)
@@ -229,12 +231,13 @@ static struct gpio_led ek_leds[] = {
 
 
 /*
- * Touchscreen
+ * ADC + Touchscreen
  */
-static struct at91_tsadcc_data ek_tsadcc_data = {
-	.adc_clock		= 1000000,
-	.pendet_debounce	= 0x0f,
-	.ts_sample_hold_time	= 0x03,
+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,
 };
 
 
@@ -310,8 +313,8 @@ static void __init ek_board_init(void)
 	at91_add_device_lcdc(&ek_lcdc_data);
 	/* AC97 */
 	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 */
diff --git a/arch/arm/mach-at91/board-snapper9260.c b/arch/arm/mach-at91/board-snapper9260.c
index f1d49e929cc..1b870e6def0 100644
--- a/arch/arm/mach-at91/board-snapper9260.c
+++ b/arch/arm/mach-at91/board-snapper9260.c
@@ -38,6 +38,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 #define SNAPPER9260_IO_EXP_GPIO(x)	(NR_BUILTIN_GPIO + (x))
 
diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c
index e4a5ac17cdb..3b575036ff9 100644
--- a/arch/arm/mach-at91/board-stamp9g20.c
+++ b/arch/arm/mach-at91/board-stamp9g20.c
@@ -32,6 +32,7 @@
 #include "board.h"
 #include "sam9_smc.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 void __init stamp9g20_init_early(void)
diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c
index be083771df2..46fdb0c68a6 100644
--- a/arch/arm/mach-at91/board-yl-9200.c
+++ b/arch/arm/mach-at91/board-yl-9200.c
@@ -50,6 +50,7 @@
 #include "at91_aic.h"
 #include "board.h"
 #include "generic.h"
+#include "gpio.h"
 
 
 static void __init yl9200_init_early(void)
diff --git a/arch/arm/mach-at91/board.h b/arch/arm/mach-at91/board.h
index 6c08b341167..4e773b55bc2 100644
--- a/arch/arm/mach-at91/board.h
+++ b/arch/arm/mach-at91/board.h
@@ -118,9 +118,6 @@ struct isi_platform_data;
 extern void __init at91_add_device_isi(struct isi_platform_data *data,
 		bool use_pck_as_mck);
 
- /* Touchscreen Controller */
-extern void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data);
-
 /* CAN */
 extern void __init at91_add_device_can(struct at91_can_data *data);
 
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index a5afcf76550..d3f05aaad8b 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -29,6 +29,7 @@
 #include <mach/at91_pio.h>
 
 #include "generic.h"
+#include "gpio.h"
 
 #define MAX_NB_GPIO_PER_BANK	32
 
@@ -49,6 +50,7 @@ static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset);
 static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip);
 static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val);
 static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset);
+static int at91_gpiolib_get_direction(struct gpio_chip *chip, unsigned offset);
 static int at91_gpiolib_direction_output(struct gpio_chip *chip,
 					 unsigned offset, int val);
 static int at91_gpiolib_direction_input(struct gpio_chip *chip,
@@ -60,6 +62,7 @@ static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset);
 		.chip = {						\
 			.label		  = name,			\
 			.request	  = at91_gpiolib_request,	\
+			.get_direction    = at91_gpiolib_get_direction, \
 			.direction_input  = at91_gpiolib_direction_input, \
 			.direction_output = at91_gpiolib_direction_output, \
 			.get		  = at91_gpiolib_get,		\
@@ -799,6 +802,17 @@ static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset)
 	return 0;
 }
 
+static int at91_gpiolib_get_direction(struct gpio_chip *chip, unsigned offset)
+{
+	struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+	void __iomem *pio = at91_gpio->regbase;
+	unsigned mask = 1 << offset;
+	u32 osr;
+
+	osr = __raw_readl(pio + PIO_OSR);
+	return !(osr & mask);
+}
+
 static int at91_gpiolib_direction_input(struct gpio_chip *chip,
 					unsigned offset)
 {
diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/gpio.h
index 5fc23771c15..eed465ab0dd 100644
--- a/arch/arm/mach-at91/include/mach/gpio.h
+++ b/arch/arm/mach-at91/gpio.h
@@ -209,14 +209,6 @@ extern int at91_get_gpio_value(unsigned pin);
 extern void at91_gpio_suspend(void);
 extern void at91_gpio_resume(void);
 
-#ifdef CONFIG_PINCTRL_AT91
-extern void at91_pinctrl_gpio_suspend(void);
-extern void at91_pinctrl_gpio_resume(void);
-#else
-static inline void at91_pinctrl_gpio_suspend(void) {}
-static inline void at91_pinctrl_gpio_resume(void) {}
-#endif
-
 #endif	/* __ASSEMBLY__ */
 
 #endif
diff --git a/arch/arm/mach-at91/include/mach/at91_adc.h b/arch/arm/mach-at91/include/mach/at91_adc.h
deleted file mode 100644
index c287307b9a3..00000000000
--- a/arch/arm/mach-at91/include/mach/at91_adc.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/at91_adc.h
- *
- * Copyright (C) SAN People
- *
- * Analog-to-Digital Converter (ADC) registers.
- * Based on AT91SAM9260 datasheet revision D.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef AT91_ADC_H
-#define AT91_ADC_H
-
-#define AT91_ADC_CR		0x00		/* Control Register */
-#define		AT91_ADC_SWRST		(1 << 0)	/* Software Reset */
-#define		AT91_ADC_START		(1 << 1)	/* Start Conversion */
-
-#define AT91_ADC_MR		0x04		/* Mode Register */
-#define		AT91_ADC_TRGEN		(1 << 0)	/* Trigger Enable */
-#define		AT91_ADC_TRGSEL		(7 << 1)	/* Trigger Selection */
-#define			AT91_ADC_TRGSEL_TC0		(0 << 1)
-#define			AT91_ADC_TRGSEL_TC1		(1 << 1)
-#define			AT91_ADC_TRGSEL_TC2		(2 << 1)
-#define			AT91_ADC_TRGSEL_EXTERNAL	(6 << 1)
-#define		AT91_ADC_LOWRES		(1 << 4)	/* Low Resolution */
-#define		AT91_ADC_SLEEP		(1 << 5)	/* Sleep Mode */
-#define		AT91_ADC_PRESCAL_9260	(0x3f << 8)	/* Prescalar Rate Selection */
-#define		AT91_ADC_PRESCAL_9G45	(0xff << 8)
-#define			AT91_ADC_PRESCAL_(x)	((x) << 8)
-#define		AT91_ADC_STARTUP_9260	(0x1f << 16)	/* Startup Up Time */
-#define		AT91_ADC_STARTUP_9G45	(0x7f << 16)
-#define		AT91_ADC_STARTUP_9X5	(0xf << 16)
-#define			AT91_ADC_STARTUP_(x)	((x) << 16)
-#define		AT91_ADC_SHTIM		(0xf  << 24)	/* Sample & Hold Time */
-#define			AT91_ADC_SHTIM_(x)	((x) << 24)
-
-#define AT91_ADC_CHER		0x10		/* Channel Enable Register */
-#define AT91_ADC_CHDR		0x14		/* Channel Disable Register */
-#define AT91_ADC_CHSR		0x18		/* Channel Status Register */
-#define		AT91_ADC_CH(n)		(1 << (n))	/* Channel Number */
-
-#define AT91_ADC_SR		0x1C		/* Status Register */
-#define		AT91_ADC_EOC(n)		(1 << (n))	/* End of Conversion on Channel N */
-#define		AT91_ADC_OVRE(n)	(1 << ((n) + 8))/* Overrun Error on Channel N */
-#define		AT91_ADC_DRDY		(1 << 16)	/* Data Ready */
-#define		AT91_ADC_GOVRE		(1 << 17)	/* General Overrun Error */
-#define		AT91_ADC_ENDRX		(1 << 18)	/* End of RX Buffer */
-#define		AT91_ADC_RXFUFF		(1 << 19)	/* RX Buffer Full */
-
-#define AT91_ADC_SR_9X5		0x30		/* Status Register for 9x5 */
-#define		AT91_ADC_SR_DRDY_9X5	(1 << 24)	/* Data Ready */
-
-#define AT91_ADC_LCDR		0x20		/* Last Converted Data Register */
-#define		AT91_ADC_LDATA		(0x3ff)
-
-#define AT91_ADC_IER		0x24		/* Interrupt Enable Register */
-#define AT91_ADC_IDR		0x28		/* Interrupt Disable Register */
-#define AT91_ADC_IMR		0x2C		/* Interrupt Mask Register */
-#define		AT91_ADC_IER_PEN	(1 << 29)
-#define		AT91_ADC_IER_NOPEN	(1 << 30)
-#define		AT91_ADC_IER_XRDY	(1 << 20)
-#define		AT91_ADC_IER_YRDY	(1 << 21)
-#define		AT91_ADC_IER_PRDY	(1 << 22)
-#define		AT91_ADC_ISR_PENS	(1 << 31)
-
-#define AT91_ADC_CHR(n)		(0x30 + ((n) * 4))	/* Channel Data Register N */
-#define		AT91_ADC_DATA		(0x3ff)
-
-#define AT91_ADC_CDR0_9X5	(0x50)			/* Channel Data Register 0 for 9X5 */
-
-#define AT91_ADC_ACR		0x94	/* Analog Control Register */
-#define		AT91_ADC_ACR_PENDETSENS	(0x3 << 0)	/* pull-up resistor */
-
-#define AT91_ADC_TSMR		0xB0
-#define		AT91_ADC_TSMR_TSMODE	(3 << 0)	/* Touch Screen Mode */
-#define			AT91_ADC_TSMR_TSMODE_NONE		(0 << 0)
-#define			AT91_ADC_TSMR_TSMODE_4WIRE_NO_PRESS	(1 << 0)
-#define			AT91_ADC_TSMR_TSMODE_4WIRE_PRESS	(2 << 0)
-#define			AT91_ADC_TSMR_TSMODE_5WIRE		(3 << 0)
-#define		AT91_ADC_TSMR_TSAV	(3 << 4)	/* Averages samples */
-#define			AT91_ADC_TSMR_TSAV_(x)		((x) << 4)
-#define		AT91_ADC_TSMR_SCTIM	(0x0f << 16)	/* Switch closure time */
-#define		AT91_ADC_TSMR_PENDBC	(0x0f << 28)	/* Pen Debounce time */
-#define			AT91_ADC_TSMR_PENDBC_(x)	((x) << 28)
-#define		AT91_ADC_TSMR_NOTSDMA	(1 << 22)	/* No Touchscreen DMA */
-#define		AT91_ADC_TSMR_PENDET_DIS	(0 << 24)	/* Pen contact detection disable */
-#define		AT91_ADC_TSMR_PENDET_ENA	(1 << 24)	/* Pen contact detection enable */
-
-#define AT91_ADC_TSXPOSR	0xB4
-#define AT91_ADC_TSYPOSR	0xB8
-#define AT91_ADC_TSPRESSR	0xBC
-
-#define AT91_ADC_TRGR_9260	AT91_ADC_MR
-#define AT91_ADC_TRGR_9G45	0x08
-#define AT91_ADC_TRGR_9X5	0xC0
-
-/* Trigger Register bit field */
-#define		AT91_ADC_TRGR_TRGPER	(0xffff << 16)
-#define			AT91_ADC_TRGR_TRGPER_(x)	((x) << 16)
-#define		AT91_ADC_TRGR_TRGMOD	(0x7 << 0)
-#define			AT91_ADC_TRGR_MOD_PERIOD_TRIG	(5 << 0)
-
-#endif
diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
index f17aa315001..56338245653 100644
--- a/arch/arm/mach-at91/include/mach/hardware.h
+++ b/arch/arm/mach-at91/include/mach/hardware.h
@@ -104,5 +104,20 @@
 /* Clocks */
 #define AT91_SLOW_CLOCK		32768		/* slow clock */
 
+/*
+ * FIXME: this is needed to communicate between the pinctrl driver and
+ * the PM implementation in the machine. Possibly part of the PM
+ * implementation should be moved down into the pinctrl driver and get
+ * called as part of the generic suspend/resume path.
+ */
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_PINCTRL_AT91
+extern void at91_pinctrl_gpio_suspend(void);
+extern void at91_pinctrl_gpio_resume(void);
+#else
+static inline void at91_pinctrl_gpio_suspend(void) {}
+static inline void at91_pinctrl_gpio_resume(void) {}
+#endif
+#endif
 
 #endif
diff --git a/arch/arm/mach-at91/leds.c b/arch/arm/mach-at91/leds.c
index 3e22978b554..77c4d8fd03f 100644
--- a/arch/arm/mach-at91/leds.c
+++ b/arch/arm/mach-at91/leds.c
@@ -16,6 +16,7 @@
 #include <linux/platform_device.h>
 
 #include "board.h"
+#include "gpio.h"
 
 
 /* ------------------------------------------------------------------------- */
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 8bda1cefdf9..e9555453298 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -32,6 +32,7 @@
 #include "at91_aic.h"
 #include "generic.h"
 #include "pm.h"
+#include "gpio.h"
 
 /*
  * Show the reason for the previous system reset.
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
index 2ba694f9626..f8bc3511a8c 100644
--- a/arch/arm/mach-at91/sysirq_mask.c
+++ b/arch/arm/mach-at91/sysirq_mask.c
@@ -25,24 +25,28 @@
 
 #include "generic.h"
 
-#define AT91_RTC_IDR	0x24	/* Interrupt Disable Register */
-#define AT91_RTC_IMR	0x28	/* Interrupt Mask Register */
+#define AT91_RTC_IDR		0x24	/* Interrupt Disable Register */
+#define AT91_RTC_IMR		0x28	/* Interrupt Mask Register */
+#define AT91_RTC_IRQ_MASK	0x1f	/* Available IRQs mask */
 
 void __init at91_sysirq_mask_rtc(u32 rtc_base)
 {
 	void __iomem *base;
-	u32 mask;
 
 	base = ioremap(rtc_base, 64);
 	if (!base)
 		return;
 
-	mask = readl_relaxed(base + AT91_RTC_IMR);
-	if (mask) {
-		pr_info("AT91: Disabling rtc irq\n");
-		writel_relaxed(mask, base + AT91_RTC_IDR);
-		(void)readl_relaxed(base + AT91_RTC_IMR);	/* flush */
-	}
+	/*
+	 * sam9x5 SoCs have the following errata:
+	 * "RTC: Interrupt Mask Register cannot be used
+	 *  Interrupt Mask Register read always returns 0."
+	 *
+	 * Hence we're not relying on IMR values to disable
+	 * interrupts.
+	 */
+	writel_relaxed(AT91_RTC_IRQ_MASK, base + AT91_RTC_IDR);
+	(void)readl_relaxed(base + AT91_RTC_IMR);	/* flush */
 
 	iounmap(base);
 }