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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 21:24:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 21:24:07 -0700
commitd762f4383100c2a87b1a3f2d678cd3b5425655b4 (patch)
treee2a982fea165e77d3f7098717e887dbb28efc6d1 /drivers/tty/serial
parent5214638384a968574a5ea3df1d3b3194da32a496 (diff)
parent78207ffd0e00d39238f0a8a455a31a12659b30b3 (diff)
Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: Ignore R_SH_NONE module relocations. SH: SE7751: Fix pcibios_map_platform_irq prototype. sh: remove warning and warning_symbol from struct stacktrace_ops sh: wire up sys_sendmmsg. clocksource: sh_tmu: Runtime PM support clocksource: sh_tmu: __clocksource_updatefreq_hz() update clocksource: sh_cmt: Runtime PM support clocksource: sh_cmt: __clocksource_updatefreq_hz() update dmaengine: shdma: synchronize RCU before freeing, simplify spinlock dmaengine: shdma: add runtime- and system-level power management dmaengine: shdma: fix locking sh: sh-sci: sh7377 and sh73a0 build fixes sh: cosmetic improvement: use an existing pointer serial: sh-sci: suspend/resume wakeup support V2 serial: sh-sci: Runtime PM support sh: select IRQ_FORCED_THREADING. sh: intc: Set virtual IRQs as nothread. sh: fixup fpu.o compile order i2c: add a module alias to the sh-mobile driver ALSA: add a module alias to the FSI driver ...
Diffstat (limited to 'drivers/tty/serial')
-rw-r--r--drivers/tty/serial/sh-sci.c16
-rw-r--r--drivers/tty/serial/sh-sci.h16
2 files changed, 23 insertions, 9 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index f35b8fb94b8..ebd8629c108 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -41,6 +41,7 @@
#include <linux/platform_device.h>
#include <linux/serial_sci.h>
#include <linux/notifier.h>
+#include <linux/pm_runtime.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/ctype.h>
@@ -560,6 +561,9 @@ static void sci_break_timer(unsigned long data)
{
struct sci_port *port = (struct sci_port *)data;
+ if (port->enable)
+ port->enable(&port->port);
+
if (sci_rxd_in(&port->port) == 0) {
port->break_flag = 1;
sci_schedule_break_timer(port);
@@ -569,6 +573,9 @@ static void sci_break_timer(unsigned long data)
sci_schedule_break_timer(port);
} else
port->break_flag = 0;
+
+ if (port->disable)
+ port->disable(&port->port);
}
static int sci_handle_errors(struct uart_port *port)
@@ -837,6 +844,8 @@ static void sci_clk_enable(struct uart_port *port)
{
struct sci_port *sci_port = to_sci_port(port);
+ pm_runtime_get_sync(port->dev);
+
clk_enable(sci_port->iclk);
sci_port->port.uartclk = clk_get_rate(sci_port->iclk);
clk_enable(sci_port->fclk);
@@ -848,6 +857,8 @@ static void sci_clk_disable(struct uart_port *port)
clk_disable(sci_port->fclk);
clk_disable(sci_port->iclk);
+
+ pm_runtime_put_sync(port->dev);
}
static int sci_request_irq(struct sci_port *port)
@@ -1756,6 +1767,8 @@ static int __devinit sci_init_single(struct platform_device *dev,
sci_port->enable = sci_clk_enable;
sci_port->disable = sci_clk_disable;
port->dev = &dev->dev;
+
+ pm_runtime_enable(&dev->dev);
}
sci_port->break_timer.data = (unsigned long)sci_port;
@@ -1775,7 +1788,7 @@ static int __devinit sci_init_single(struct platform_device *dev,
*
* For the muxed case there's nothing more to do.
*/
- port->irq = p->irqs[SCIx_TXI_IRQ];
+ port->irq = p->irqs[SCIx_RXI_IRQ];
if (p->dma_dev)
dev_dbg(port->dev, "DMA device %p, tx %d, rx %d\n",
@@ -1936,6 +1949,7 @@ static int sci_remove(struct platform_device *dev)
clk_put(port->iclk);
clk_put(port->fclk);
+ pm_runtime_disable(&dev->dev);
return 0;
}
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index 5fefed53fa4..b04d937c911 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -270,12 +270,12 @@
#elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
- defined(CONFIG_ARCH_SH73A0) || \
- defined(CONFIG_ARCH_SH7367) || \
- defined(CONFIG_ARCH_SH7377)
+ defined(CONFIG_ARCH_SH7367)
#define SCIF_FNS(name, scif_offset, scif_size) \
CPU_SCIF_FNS(name, scif_offset, scif_size)
-#elif defined(CONFIG_ARCH_SH7372)
+#elif defined(CONFIG_ARCH_SH7377) || \
+ defined(CONFIG_ARCH_SH7372) || \
+ defined(CONFIG_ARCH_SH73A0)
#define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size) \
CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scifb_offset, sh4_scifb_size)
#define SCIF_FNS(name, scif_offset, scif_size) \
@@ -313,9 +313,7 @@
#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
defined(CONFIG_CPU_SUBTYPE_SH7720) || \
defined(CONFIG_CPU_SUBTYPE_SH7721) || \
- defined(CONFIG_ARCH_SH73A0) || \
- defined(CONFIG_ARCH_SH7367) || \
- defined(CONFIG_ARCH_SH7377)
+ defined(CONFIG_ARCH_SH7367)
SCIF_FNS(SCSMR, 0x00, 16)
SCIF_FNS(SCBRR, 0x04, 8)
@@ -326,7 +324,9 @@ SCIF_FNS(SCFDR, 0x1c, 16)
SCIF_FNS(SCxTDR, 0x20, 8)
SCIF_FNS(SCxRDR, 0x24, 8)
SCIF_FNS(SCLSR, 0x00, 0)
-#elif defined(CONFIG_ARCH_SH7372)
+#elif defined(CONFIG_ARCH_SH7377) || \
+ defined(CONFIG_ARCH_SH7372) || \
+ defined(CONFIG_ARCH_SH73A0)
SCIF_FNS(SCSMR, 0x00, 16)
SCIF_FNS(SCBRR, 0x04, 8)
SCIF_FNS(SCSCR, 0x08, 16)