---

yaml
---
r: 26751
b: refs/heads/master
c: 4cff33f
h: refs/heads/master
i:
  26749: 8f30e2a
  26747: 5764cda
  26743: a8a5c6a
  26735: 3a0cdc9
  26719: e89d53b
  26687: 2d546db
  26623: 944cb62
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4fbca5320eb102d2e15bdeffe79e125c11cf925e
+refs/heads/master: 4cff33f94fefcce1b3c01a9d1da6bb85fe3cbdfa

trunk/arch/arm/kernel/asm-offsets.c

@@ -99,8 +99,6 @@ int main(void)
   DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
   DEFINE(MACHINFO_PHYSIO,	offsetof(struct machine_desc, phys_io));
   DEFINE(MACHINFO_PGOFFIO,	offsetof(struct machine_desc, io_pg_offst));
-  BLANK();
-  DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
   DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
   DEFINE(PROCINFO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mmu_flags));
   return 0; 

trunk/arch/arm/kernel/dma-isa.c

@@ -143,23 +143,12 @@ static struct dma_ops isa_dma_ops = {
 	.residue	= isa_get_dma_residue,
 };
 
-static struct resource dma_resources[] = { {
-	.name	= "dma1",
-	.start	= 0x0000,
-	.end	= 0x000f
-}, {
-	.name	= "dma low page",
-	.start	= 0x0080,
-	.end 	= 0x008f
-}, {
-	.name	= "dma2",
-	.start	= 0x00c0,
-	.end	= 0x00df
-}, {
-	.name	= "dma high page",
-	.start	= 0x0480,
-	.end	= 0x048f
-} };
+static struct resource dma_resources[] = {
+	{ "dma1",		0x0000, 0x000f },
+	{ "dma low page", 	0x0080, 0x008f },
+	{ "dma2",		0x00c0, 0x00df },
+	{ "dma high page",	0x0480, 0x048f }
+};
 
 void __init isa_init_dma(dma_t *dma)
 {

trunk/arch/arm/kernel/process.c

@@ -311,7 +311,7 @@ void free_thread_info(struct thread_info *thread)
 		struct thread_info_list *th = &get_cpu_var(thread_info_list);
 		if (th->nr < EXTRA_TASK_STRUCT) {
 			unsigned long *p = (unsigned long *)thread;
-			p[0] = (unsigned long)th->head;
+			p[0] = th->head;
 			th->head = p;
 			th->nr += 1;
 			put_cpu_var(thread_info_list);

trunk/arch/arm/lib/backtrace.S

@@ -122,7 +122,7 @@ ENTRY(c_backtrace)
 #define reg   r5
 #define stack r6
 
-.Ldumpstm:	stmfd	sp!, {instr, reg, stack, r7, r8, lr}
+.Ldumpstm:	stmfd	sp!, {instr, reg, stack, r7, lr}
 		mov	stack, r0
 		mov	instr, r1
 		mov	reg, #9
@@ -145,7 +145,7 @@ ENTRY(c_backtrace)
 		adrne	r0, .Lcr
 		blne	printk
 		mov	r0, stack
-		LOADREGS(fd, sp!, {instr, reg, stack, r7, r8, pc})
+		LOADREGS(fd, sp!, {instr, reg, stack, r7, pc})
 
 .Lfp:		.asciz	" r%d = %08X%c"
 .Lcr:		.asciz	"\n"

trunk/arch/arm/lib/div64.S

@@ -189,12 +189,12 @@ ENTRY(__do_div64)
 	moveq	pc, lr
 
 	@ Division by 0:
-	str	lr, [sp, #-8]!
+	str	lr, [sp, #-4]!
 	bl	__div0
 
 	@ as wrong as it could be...
 	mov	yl, #0
 	mov	yh, #0
 	mov	xh, #0
-	ldr	pc, [sp], #8
+	ldr	pc, [sp], #4
 

trunk/arch/arm/mach-realview/realview_eb.c

@@ -137,11 +137,8 @@ static struct amba_device *amba_devs[] __initdata = {
 static void __init gic_init_irq(void)
 {
 #ifdef CONFIG_REALVIEW_MPCORE
-	unsigned int pldctrl;
 	writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
-	pldctrl = readl(__io_address(REALVIEW_SYS_BASE)	+ 0xd8);
-	pldctrl |= 0x00800000;	/* New irq mode */
-	writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + 0xd8);
+	writel(0x008003c0, __io_address(REALVIEW_SYS_BASE) + 0xd8);
 	writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
 #endif
 	gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE));

trunk/arch/arm/mm/ioremap.c

@@ -141,7 +141,7 @@ __ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
  		return NULL;
  	addr = (unsigned long)area->addr;
  	if (remap_area_pages(addr, pfn, size, flags)) {
- 		vunmap((void *)addr);
+ 		vfree((void *)addr);
  		return NULL;
  	}
  	return (void __iomem *) (offset + (char *)addr);
@@ -173,7 +173,7 @@ EXPORT_SYMBOL(__ioremap);
 
 void __iounmap(void __iomem *addr)
 {
-	vunmap((void *)(PAGE_MASK & (unsigned long)addr));
+	vfree((void *) (PAGE_MASK & (unsigned long) addr));
 }
 EXPORT_SYMBOL(__iounmap);
 

trunk/drivers/serial/serial_core.c

@@ -1907,12 +1907,9 @@ uart_set_options(struct uart_port *port, struct console *co,
 static void uart_change_pm(struct uart_state *state, int pm_state)
 {
 	struct uart_port *port = state->port;
-
-	if (state->pm_state != pm_state) {
-		if (port->ops->pm)
-			port->ops->pm(port, pm_state, state->pm_state);
-		state->pm_state = pm_state;
-	}
+	if (port->ops->pm)
+		port->ops->pm(port, pm_state, state->pm_state);
+	state->pm_state = pm_state;
 }
 
 int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)

trunk/drivers/spi/spi_bitbang.c

@@ -138,13 +138,51 @@ static unsigned bitbang_txrx_32(
 	return t->len - count;
 }
 
+static int
+bitbang_transfer_setup(struct spi_device *spi, struct spi_transfer *t)
+{
+	struct spi_bitbang_cs	*cs = spi->controller_state;
+	u8			bits_per_word;
+	u32			hz;
+
+	if (t) {
+		bits_per_word = t->bits_per_word;
+		hz = t->speed_hz;
+	} else {
+		bits_per_word = 0;
+		hz = 0;
+	}
+
+	/* spi_transfer level calls that work per-word */
+	if (!bits_per_word)
+		bits_per_word = spi->bits_per_word;
+	if (bits_per_word <= 8)
+		cs->txrx_bufs = bitbang_txrx_8;
+	else if (bits_per_word <= 16)
+		cs->txrx_bufs = bitbang_txrx_16;
+	else if (bits_per_word <= 32)
+		cs->txrx_bufs = bitbang_txrx_32;
+	else
+		return -EINVAL;
+
+	/* nsecs = (clock period)/2 */
+	if (!hz)
+		hz = spi->max_speed_hz;
+	cs->nsecs = (1000000000/2) / hz;
+	if (cs->nsecs > MAX_UDELAY_MS * 1000)
+		return -EINVAL;
+
+	return 0;
+}
+
 /**
  * spi_bitbang_setup - default setup for per-word I/O loops
  */
 int spi_bitbang_setup(struct spi_device *spi)
 {
 	struct spi_bitbang_cs	*cs = spi->controller_state;
 	struct spi_bitbang	*bitbang;
+	int			retval;
 
 	if (!spi->max_speed_hz)
 		return -EINVAL;
@@ -160,25 +198,14 @@ int spi_bitbang_setup(struct spi_device *spi)
 	if (!spi->bits_per_word)
 		spi->bits_per_word = 8;
 
-	/* spi_transfer level calls that work per-word */
-	if (spi->bits_per_word <= 8)
-		cs->txrx_bufs = bitbang_txrx_8;
-	else if (spi->bits_per_word <= 16)
-		cs->txrx_bufs = bitbang_txrx_16;
-	else if (spi->bits_per_word <= 32)
-		cs->txrx_bufs = bitbang_txrx_32;
-	else
-		return -EINVAL;
-
 	/* per-word shift register access, in hardware or bitbanging */
 	cs->txrx_word = bitbang->txrx_word[spi->mode & (SPI_CPOL|SPI_CPHA)];
 	if (!cs->txrx_word)
 		return -EINVAL;
 
-	/* nsecs = (clock period)/2 */
-	cs->nsecs = (1000000000/2) / (spi->max_speed_hz);
-	if (cs->nsecs > MAX_UDELAY_MS * 1000)
-		return -EINVAL;
+	retval = bitbang_transfer_setup(spi, NULL);
+	if (retval < 0)
+		return retval;
 
 	dev_dbg(&spi->dev, "%s, mode %d, %u bits/w, %u nsec\n",
 			__FUNCTION__, spi->mode & (SPI_CPOL | SPI_CPHA),
@@ -246,6 +273,8 @@ static void bitbang_work(void *_bitbang)
 		unsigned		tmp;
 		unsigned		cs_change;
 		int			status;
+		int			(*setup_transfer)(struct spi_device *,
+						struct spi_transfer *);
 
 		m = container_of(bitbang->queue.next, struct spi_message,
 				queue);
@@ -262,13 +291,28 @@ static void bitbang_work(void *_bitbang)
 		tmp = 0;
 		cs_change = 1;
 		status = 0;
+		setup_transfer = NULL;
 
 		list_for_each_entry (t, &m->transfers, transfer_list) {
 			if (bitbang->shutdown) {
 				status = -ESHUTDOWN;
 				break;
 			}
 
+			/* override or restore speed and wordsize */
+			if (t->speed_hz || t->bits_per_word) {
+				setup_transfer = bitbang->setup_transfer;
+				if (!setup_transfer) {
+					status = -ENOPROTOOPT;
+					break;
+				}
+			}
+			if (setup_transfer) {
+				status = setup_transfer(spi, t);
+				if (status < 0)
+					break;
+			}
+
 			/* set up default clock polarity, and activate chip;
 			 * this implicitly updates clock and spi modes as
 			 * previously recorded for this device via setup().
@@ -325,6 +369,10 @@ static void bitbang_work(void *_bitbang)
 		m->status = status;
 		m->complete(m->context);
 
+		/* restore speed and wordsize */
+		if (setup_transfer)
+			setup_transfer(spi, NULL);
+
 		/* normally deactivate chipselect ... unless no error and
 		 * cs_change has hinted that the next message will probably
 		 * be for this chip too.
@@ -406,6 +454,7 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
 		bitbang->use_dma = 0;
 		bitbang->txrx_bufs = spi_bitbang_bufs;
 		if (!bitbang->master->setup) {
+			bitbang->setup_transfer = bitbang_transfer_setup;
 			bitbang->master->setup = spi_bitbang_setup;
 			bitbang->master->cleanup = spi_bitbang_cleanup;
 		}

trunk/include/asm-arm/procinfo.h

@@ -45,6 +45,8 @@ extern unsigned int elf_hwcap;
 
 #endif	/* __ASSEMBLY__ */
 
+#define PROC_INFO_SZ	48
+
 #define HWCAP_SWP	1
 #define HWCAP_HALF	2
 #define HWCAP_THUMB	4

trunk/include/linux/spi/spi.h

@@ -31,13 +31,15 @@ extern struct bus_type spi_bus_type;
  * @master: SPI controller used with the device.
  * @max_speed_hz: Maximum clock rate to be used with this chip
  *	(on this board); may be changed by the device's driver.
+ *	The spi_transfer.speed_hz can override this for each transfer.
  * @chip-select: Chipselect, distinguishing chips handled by "master".
  * @mode: The spi mode defines how data is clocked out and in.
  *	This may be changed by the device's driver.
  * @bits_per_word: Data transfers involve one or more words; word sizes
  * 	like eight or 12 bits are common.  In-memory wordsizes are
  *	powers of two bytes (e.g. 20 bit samples use 32 bits).
  *	This may be changed by the device's driver.
+ *	The spi_transfer.bits_per_word can override this for each transfer.
  * @irq: Negative, or the number passed to request_irq() to receive
  * 	interrupts from this device.
  * @controller_state: Controller's runtime state
@@ -268,6 +270,10 @@ extern struct spi_master *spi_busnum_to_master(u16 busnum);
  * @tx_dma: DMA address of tx_buf, if spi_message.is_dma_mapped
  * @rx_dma: DMA address of rx_buf, if spi_message.is_dma_mapped
  * @len: size of rx and tx buffers (in bytes)
+ * @speed_hz: Select a speed other then the device default for this
+ *      transfer. If 0 the default (from spi_device) is used.
+ * @bits_per_word: select a bits_per_word other then the device default
+ *      for this transfer. If 0 the default (from spi_device) is used.
  * @cs_change: affects chipselect after this transfer completes
  * @delay_usecs: microseconds to delay after this transfer before
  * 	(optionally) changing the chipselect status, then starting
@@ -322,7 +328,9 @@ struct spi_transfer {
 	dma_addr_t	rx_dma;
 
 	unsigned	cs_change:1;
+	u8		bits_per_word;
 	u16		delay_usecs;
+	u32		speed_hz;
 
 	struct list_head transfer_list;
 };

trunk/include/linux/spi/spi_bitbang.h

@@ -30,6 +30,12 @@ struct spi_bitbang {
 
 	struct spi_master	*master;
 
+	/* setup_transfer() changes clock and/or wordsize to match settings
+	 * for this transfer; zeroes restore defaults from spi_device.
+	 */
+	int	(*setup_transfer)(struct spi_device *spi,
+			struct spi_transfer *t);
+
 	void	(*chipselect)(struct spi_device *spi, int is_on);
 #define	BITBANG_CS_ACTIVE	1	/* normally nCS, active low */
 #define	BITBANG_CS_INACTIVE	0