summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/powermac/low_i2c.c
diff options
context:
space:
mode:
authorJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
committerJustin Waters <justin.waters@timesys.com>2008-02-26 13:07:02 -0500
commitb80a32b9cc634adfa8eaef33ec981e7febf2ade2 (patch)
treef256bce13ba11f514a388160df84e1410bedbe2b /arch/powerpc/platforms/powermac/low_i2c.c
parent594133ef22fae0d737bd1b57352cf3f48a192c63 (diff)
Update the i.MX31 Kernel to 2.6.232.6.23-mx31ads-2008022618072.6.23-mx31-200802261807
This is the result of a brute-force attempt to update the kernel to 2.6.23. Now that we have a git tree, our effort will be a little nicer in the future. Signed-off-by: Justin Waters <justin.waters@timesys.com>
Diffstat (limited to 'arch/powerpc/platforms/powermac/low_i2c.c')
-rw-r--r--arch/powerpc/platforms/powermac/low_i2c.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 3f507ab9c5e5..efdf5eb81ecc 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -42,6 +42,7 @@
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/timer.h>
+#include <linux/mutex.h>
#include <asm/keylargo.h>
#include <asm/uninorth.h>
#include <asm/io.h>
@@ -84,7 +85,7 @@ struct pmac_i2c_bus
void *hostdata;
int channel; /* some hosts have multiple */
int mode; /* current mode */
- struct semaphore sem;
+ struct mutex mutex;
int opened;
int polled; /* open mode */
struct platform_device *platform_dev;
@@ -104,7 +105,7 @@ static LIST_HEAD(pmac_i2c_busses);
struct pmac_i2c_host_kw
{
- struct semaphore mutex; /* Access mutex for use by
+ struct mutex mutex; /* Access mutex for use by
* i2c-keywest */
void __iomem *base; /* register base address */
int bsteps; /* register stepping */
@@ -375,14 +376,14 @@ static void kw_i2c_timeout(unsigned long data)
static int kw_i2c_open(struct pmac_i2c_bus *bus)
{
struct pmac_i2c_host_kw *host = bus->hostdata;
- down(&host->mutex);
+ mutex_lock(&host->mutex);
return 0;
}
static void kw_i2c_close(struct pmac_i2c_bus *bus)
{
struct pmac_i2c_host_kw *host = bus->hostdata;
- up(&host->mutex);
+ mutex_unlock(&host->mutex);
}
static int kw_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
@@ -498,7 +499,7 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
kfree(host);
return NULL;
}
- init_MUTEX(&host->mutex);
+ mutex_init(&host->mutex);
init_completion(&host->complete);
spin_lock_init(&host->lock);
init_timer(&host->timeout_timer);
@@ -571,7 +572,7 @@ static void __init kw_i2c_add(struct pmac_i2c_host_kw *host,
bus->open = kw_i2c_open;
bus->close = kw_i2c_close;
bus->xfer = kw_i2c_xfer;
- init_MUTEX(&bus->sem);
+ mutex_init(&bus->mutex);
if (controller == busnode)
bus->flags = pmac_i2c_multibus;
list_add(&bus->link, &pmac_i2c_busses);
@@ -798,7 +799,7 @@ static void __init pmu_i2c_probe(void)
bus->mode = pmac_i2c_mode_std;
bus->hostdata = bus + 1;
bus->xfer = pmu_i2c_xfer;
- init_MUTEX(&bus->sem);
+ mutex_init(&bus->mutex);
bus->flags = pmac_i2c_multibus;
list_add(&bus->link, &pmac_i2c_busses);
@@ -921,7 +922,7 @@ static void __init smu_i2c_probe(void)
bus->mode = pmac_i2c_mode_std;
bus->hostdata = bus + 1;
bus->xfer = smu_i2c_xfer;
- init_MUTEX(&bus->sem);
+ mutex_init(&bus->mutex);
bus->flags = 0;
list_add(&bus->link, &pmac_i2c_busses);
@@ -1093,13 +1094,13 @@ int pmac_i2c_open(struct pmac_i2c_bus *bus, int polled)
{
int rc;
- down(&bus->sem);
+ mutex_lock(&bus->mutex);
bus->polled = polled || pmac_i2c_force_poll;
bus->opened = 1;
bus->mode = pmac_i2c_mode_std;
if (bus->open && (rc = bus->open(bus)) != 0) {
bus->opened = 0;
- up(&bus->sem);
+ mutex_unlock(&bus->mutex);
return rc;
}
return 0;
@@ -1112,7 +1113,7 @@ void pmac_i2c_close(struct pmac_i2c_bus *bus)
if (bus->close)
bus->close(bus);
bus->opened = 0;
- up(&bus->sem);
+ mutex_unlock(&bus->mutex);
}
EXPORT_SYMBOL_GPL(pmac_i2c_close);