Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC bug fixes from Arnd Bergmann:
 "Things are calming down for arm-soc as well.  This set of bug fixes is
  dominated in size by the at91 platform bug fixes.  Some of them were
  meant to go through the framebuffer tree during the merge window, but
  since the framebuffer maintainer could not be reached, I offered to
  take them here.  The other notable at91 change is the addition of
  pinctrl definitions to fix the NAND controller.

  The rest are mostly simple regression fixes:

   - Our removal of VIRT_TO_BUS conflicted with Stephen Rothwell's
     renaming of the Kconfig symbol.  You will get a trivial merge
     conflict here, we still want to remove it.
   - missing bits for clocks on imx and s5pv210
   - missing header inclusions in mmp and shmobile
   - typos in s5pv210 camera and vt8500 clock support code

  and three trivial fixes for pre-3.8 bugs:

   - an old bogus build warning in the joystick driver
   - a misleading Kconfig description
   - a NULL pointer check on davinci"

* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: fix CONFIG_VIRT_TO_BUS handling
  ARM: i.MX35: enable MAX clock
  ARM: Scorpion is a v7 architecture, not v6
  ARM: mmp: add platform_device head file in gplugd
  input/joystick: use get_cycles on ARM
  [media] s5p-fimc: fix s5pv210 build
  clk: vt8500: Fix "fix device clock divisor calculations"
  ARM: i.MX25: Fix DT compilation
  ARM: at91: fix infinite loop in at91_irq_suspend/resume
  ARM: at91: add gpio suspend/resume support when using pinctrl
  ARM: at91: fix LCD-wiring mode
  atmel_lcdfb: fix 16-bpp modes on older SOCs
  ARM: at91: dt: at91sam9x5: complete NAND pinctrl
  ARM: at91: dt: at91sam9x5: correct NAND pins comments
  ARM: davinci: edma: fix dmaengine induced null pointer dereference on da830
  ARM: shmobile: marzen: Include mmc/host.h
  ARM: EXYNOS: Add #dma-cells for generic dma binding support for PL330
  ARM: S5PV210: Fix PL330 DMA controller clkdev entries

15 files changed, 100 insertions, 42 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2c3bdce1513..13b739469c5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -49,7 +49,6 @@ config ARM
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_UID16
-	select VIRT_TO_BUS
 	select KTIME_SCALAR
 	select PERF_USE_VMALLOC
 	select RTC_LIB
@@ -743,6 +742,7 @@ config ARCH_RPC
 	select NEED_MACH_IO_H
 	select NEED_MACH_MEMORY_H
 	select NO_IOPORT
+	select VIRT_TO_BUS
 	help
 	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
 	  CD-ROM interface, serial and parallel port, and the floppy drive.
@@ -878,6 +878,7 @@ config ARCH_SHARK
 	select ISA_DMA
 	select NEED_MACH_MEMORY_H
 	select PCI
+	select VIRT_TO_BUS
 	select ZONE_DMA
 	help
 	  Support for the StrongARM based Digital DNARD machine, also known
@@ -1005,12 +1006,12 @@ config ARCH_MULTI_V4_V5
 	bool
 
 config ARCH_MULTI_V6
-	bool "ARMv6 based platforms (ARM11, Scorpion, ...)"
+	bool "ARMv6 based platforms (ARM11)"
 	select ARCH_MULTI_V6_V7
 	select CPU_V6
 
 config ARCH_MULTI_V7
-	bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
+	bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
 	default y
 	select ARCH_MULTI_V6_V7
 	select ARCH_VEXPRESS
@@ -1461,10 +1462,6 @@ config ISA_DMA
 	bool
 	select ISA_DMA_API
 
-config ARCH_NO_VIRT_TO_BUS
-	def_bool y
-	depends on !ARCH_RPC && !ARCH_NETWINDER && !ARCH_SHARK
-
 # Select ISA DMA interface
 config ISA_DMA_API
 	bool
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index aa98e641931..a98c0d50fbb 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -238,8 +238,32 @@
 				nand {
 					pinctrl_nand: nand-0 {
 						atmel,pins =
-							<3 4 0x0 0x1	/* PD5 gpio RDY pin pull_up */
-							 3 5 0x0 0x1>;	/* PD4 gpio enable pin pull_up */
+							<3 0 0x1 0x0	/* PD0 periph A Read Enable */
+							 3 1 0x1 0x0	/* PD1 periph A Write Enable */
+							 3 2 0x1 0x0	/* PD2 periph A Address Latch Enable */
+							 3 3 0x1 0x0	/* PD3 periph A Command Latch Enable */
+							 3 4 0x0 0x1	/* PD4 gpio Chip Enable pin pull_up */
+							 3 5 0x0 0x1	/* PD5 gpio RDY/BUSY pin pull_up */
+							 3 6 0x1 0x0	/* PD6 periph A Data bit 0 */
+							 3 7 0x1 0x0	/* PD7 periph A Data bit 1 */
+							 3 8 0x1 0x0	/* PD8 periph A Data bit 2 */
+							 3 9 0x1 0x0	/* PD9 periph A Data bit 3 */
+							 3 10 0x1 0x0	/* PD10 periph A Data bit 4 */
+							 3 11 0x1 0x0	/* PD11 periph A Data bit 5 */
+							 3 12 0x1 0x0	/* PD12 periph A Data bit 6 */
+							 3 13 0x1 0x0>;	/* PD13 periph A Data bit 7 */
+					};
+
+					pinctrl_nand_16bits: nand_16bits-0 {
+						atmel,pins =
+							<3 14 0x1 0x0	/* PD14 periph A Data bit 8 */
+							 3 15 0x1 0x0	/* PD15 periph A Data bit 9 */
+							 3 16 0x1 0x0	/* PD16 periph A Data bit 10 */
+							 3 17 0x1 0x0	/* PD17 periph A Data bit 11 */
+							 3 18 0x1 0x0	/* PD18 periph A Data bit 12 */
+							 3 19 0x1 0x0	/* PD19 periph A Data bit 13 */
+							 3 20 0x1 0x0	/* PD20 periph A Data bit 14 */
+							 3 21 0x1 0x0>;	/* PD21 periph A Data bit 15 */
 					};
 				};
 
diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index e1347fceb5b..1a62bcf18aa 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -275,18 +275,27 @@
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x12680000 0x1000>;
 			interrupts = <0 35 0>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
 		};
 
 		pdma1: pdma@12690000 {
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x12690000 0x1000>;
 			interrupts = <0 36 0>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
 		};
 
 		mdma1: mdma@12850000 {
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x12850000 0x1000>;
 			interrupts = <0 34 0>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <1>;
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index 5f3562ad674..9a99755920c 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -142,12 +142,18 @@
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x120000 0x1000>;
 			interrupts = <0 34 0>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
 		};
 
 		pdma1: pdma@121B0000 {
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x121000 0x1000>;
 			interrupts = <0 35 0>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
 		};
 	};
 
diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/include/mach/gpio.h
index eed465ab0dd..5fc23771c15 100644
--- a/arch/arm/mach-at91/include/mach/gpio.h
+++ b/arch/arm/mach-at91/include/mach/gpio.h
@@ -209,6 +209,14 @@ 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/irq.c b/arch/arm/mach-at91/irq.c
index 8e210262aee..e0ca5917102 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -92,23 +92,21 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value)
 
 void at91_irq_suspend(void)
 {
-	int i = 0, bit;
+	int bit = -1;
 
 	if (has_aic5()) {
 		/* disable enabled irqs */
-		while ((bit = find_next_bit(backups, n_irqs, i)) < n_irqs) {
+		while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
 			at91_aic_write(AT91_AIC5_SSR,
 				       bit & AT91_AIC5_INTSEL_MSK);
 			at91_aic_write(AT91_AIC5_IDCR, 1);
-			i = bit;
 		}
 		/* enable wakeup irqs */
-		i = 0;
-		while ((bit = find_next_bit(wakeups, n_irqs, i)) < n_irqs) {
+		bit = -1;
+		while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
 			at91_aic_write(AT91_AIC5_SSR,
 				       bit & AT91_AIC5_INTSEL_MSK);
 			at91_aic_write(AT91_AIC5_IECR, 1);
-			i = bit;
 		}
 	} else {
 		at91_aic_write(AT91_AIC_IDCR, *backups);
@@ -118,23 +116,21 @@ void at91_irq_suspend(void)
 
 void at91_irq_resume(void)
 {
-	int i = 0, bit;
+	int bit = -1;
 
 	if (has_aic5()) {
 		/* disable wakeup irqs */
-		while ((bit = find_next_bit(wakeups, n_irqs, i)) < n_irqs) {
+		while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
 			at91_aic_write(AT91_AIC5_SSR,
 				       bit & AT91_AIC5_INTSEL_MSK);
 			at91_aic_write(AT91_AIC5_IDCR, 1);
-			i = bit;
 		}
 		/* enable irqs disabled for suspend */
-		i = 0;
-		while ((bit = find_next_bit(backups, n_irqs, i)) < n_irqs) {
+		bit = -1;
+		while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
 			at91_aic_write(AT91_AIC5_SSR,
 				       bit & AT91_AIC5_INTSEL_MSK);
 			at91_aic_write(AT91_AIC5_IECR, 1);
-			i = bit;
 		}
 	} else {
 		at91_aic_write(AT91_AIC_IDCR, *wakeups);
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index adb6db888a1..73f1f250403 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -201,7 +201,10 @@ extern u32 at91_slow_clock_sz;
 
 static int at91_pm_enter(suspend_state_t state)
 {
-	at91_gpio_suspend();
+	if (of_have_populated_dt())
+		at91_pinctrl_gpio_suspend();
+	else
+		at91_gpio_suspend();
 	at91_irq_suspend();
 
 	pr_debug("AT91: PM - wake mask %08x, pm state %d\n",
@@ -286,7 +289,10 @@ static int at91_pm_enter(suspend_state_t state)
 error:
 	target_state = PM_SUSPEND_ON;
 	at91_irq_resume();
-	at91_gpio_resume();
+	if (of_have_populated_dt())
+		at91_pinctrl_gpio_resume();
+	else
+		at91_gpio_resume();
 	return 0;
 }
 
diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c
index a685e9706b7..45b7c71d9cc 100644
--- a/arch/arm/mach-davinci/dma.c
+++ b/arch/arm/mach-davinci/dma.c
@@ -743,6 +743,9 @@ EXPORT_SYMBOL(edma_free_channel);
  */
 int edma_alloc_slot(unsigned ctlr, int slot)
 {
+	if (!edma_cc[ctlr])
+		return -EINVAL;
+
 	if (slot >= 0)
 		slot = EDMA_CHAN_SLOT(slot);
 
diff --git a/arch/arm/mach-footbridge/Kconfig b/arch/arm/mach-footbridge/Kconfig
index abda5a18a66..0f2111a1131 100644
--- a/arch/arm/mach-footbridge/Kconfig
+++ b/arch/arm/mach-footbridge/Kconfig
@@ -67,6 +67,7 @@ config ARCH_NETWINDER
 	select ISA
 	select ISA_DMA
 	select PCI
+	select VIRT_TO_BUS
 	help
 	  Say Y here if you intend to run this kernel on the Rebel.COM
 	  NetWinder.  Information about this machine can be found at:
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index 74e3a34d78b..e13a8fa5e62 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -264,6 +264,7 @@ int __init mx35_clocks_init(void)
 	clk_prepare_enable(clk[gpio3_gate]);
 	clk_prepare_enable(clk[iim_gate]);
 	clk_prepare_enable(clk[emi_gate]);
+	clk_prepare_enable(clk[max_gate]);
 
 	/*
 	 * SCC is needed to boot via mmc after a watchdog reset. The clock code
diff --git a/arch/arm/mach-imx/imx25-dt.c b/arch/arm/mach-imx/imx25-dt.c
index 03b65e5ea54..82348391582 100644
--- a/arch/arm/mach-imx/imx25-dt.c
+++ b/arch/arm/mach-imx/imx25-dt.c
@@ -27,6 +27,11 @@ static const char * const imx25_dt_board_compat[] __initconst = {
 	NULL
 };
 
+static void __init imx25_timer_init(void)
+{
+	mx25_clocks_init_dt();
+}
+
 DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
 	.map_io		= mx25_map_io,
 	.init_early	= imx25_init_early,
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index d1e2d595e79..f62b68d926f 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/platform_device.h>
 #include <linux/gpio.h>
 
 #include <asm/mach/arch.h>
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index fcdf52dbcc4..f051f53e35b 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -214,11 +214,6 @@ static struct clk clk_pcmcdclk2 = {
 	.name		= "pcmcdclk",
 };
 
-static struct clk dummy_apb_pclk = {
-	.name		= "apb_pclk",
-	.id		= -1,
-};
-
 static struct clk *clkset_vpllsrc_list[] = {
 	[0] = &clk_fin_vpll,
 	[1] = &clk_sclk_hdmi27m,
@@ -305,18 +300,6 @@ static struct clk_ops clk_fout_apll_ops = {
 
 static struct clk init_clocks_off[] = {
 	{
-		.name		= "dma",
-		.devname	= "dma-pl330.0",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip0_ctrl,
-		.ctrlbit	= (1 << 3),
-	}, {
-		.name		= "dma",
-		.devname	= "dma-pl330.1",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip0_ctrl,
-		.ctrlbit	= (1 << 4),
-	}, {
 		.name		= "rot",
 		.parent		= &clk_hclk_dsys.clk,
 		.enable		= s5pv210_clk_ip0_ctrl,
@@ -573,6 +556,20 @@ static struct clk clk_hsmmc3 = {
 	.ctrlbit	= (1<<19),
 };
 
+static struct clk clk_pdma0 = {
+	.name		= "pdma0",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip0_ctrl,
+	.ctrlbit	= (1 << 3),
+};
+
+static struct clk clk_pdma1 = {
+	.name		= "pdma1",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip0_ctrl,
+	.ctrlbit	= (1 << 4),
+};
+
 static struct clk *clkset_uart_list[] = {
 	[6] = &clk_mout_mpll.clk,
 	[7] = &clk_mout_epll.clk,
@@ -1075,6 +1072,8 @@ static struct clk *clk_cdev[] = {
 	&clk_hsmmc1,
 	&clk_hsmmc2,
 	&clk_hsmmc3,
+	&clk_pdma0,
+	&clk_pdma1,
 };
 
 /* Clock initialisation code */
@@ -1333,6 +1332,8 @@ static struct clk_lookup s5pv210_clk_lookup[] = {
 	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
 	CLKDEV_INIT("s5pv210-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
 	CLKDEV_INIT("s5pv210-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("dma-pl330.0", "apb_pclk", &clk_pdma0),
+	CLKDEV_INIT("dma-pl330.1", "apb_pclk", &clk_pdma1),
 };
 
 void __init s5pv210_register_clocks(void)
@@ -1361,6 +1362,5 @@ void __init s5pv210_register_clocks(void)
 	for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++)
 		s3c_disable_clocks(clk_cdev[ptr], 1);
 
-	s3c24xx_register_clock(&dummy_apb_pclk);
 	s3c_pwmclk_init();
 }
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 3a38f7b34b9..e373de44a8b 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -845,7 +845,7 @@ static struct fimc_source_info goni_camera_sensors[] = {
 		.mux_id		= 0,
 		.flags		= V4L2_MBUS_PCLK_SAMPLE_FALLING |
 				  V4L2_MBUS_VSYNC_ACTIVE_LOW,
-		.bus_type	= FIMC_BUS_TYPE_ITU_601,
+		.fimc_bus_type	= FIMC_BUS_TYPE_ITU_601,
 		.board_info	= &noon010pc30_board_info,
 		.i2c_bus_num	= 0,
 		.clk_frequency	= 16000000UL,
diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index cdcb799e802..fec49ebc359 100644
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -32,6 +32,7 @@
 #include <linux/smsc911x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/sh_hspi.h>
+#include <linux/mmc/host.h>
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mfd/tmio.h>
 #include <linux/usb/otg.h>