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| author | Mark A. Greer <mgreer@mvista.com> | 2006-03-31 23:06:03 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-04-14 11:18:33 -0700 |
| commit | 8c750c0bd2fa6f73cd3cd3f1a58d48f94de343b6 (patch) | |
| tree | a4cc8b9d803069f755e847c332fc260932fd3647 /drivers/i2c | |
| parent | 524465df2accf54604cb89c04dbaab0c8aaa5bb4 (diff) | |
| download | kernel_samsung_crespo-8c750c0bd2fa6f73cd3cd3f1a58d48f94de343b6.zip kernel_samsung_crespo-8c750c0bd2fa6f73cd3cd3f1a58d48f94de343b6.tar.gz kernel_samsung_crespo-8c750c0bd2fa6f73cd3cd3f1a58d48f94de343b6.tar.bz2 | |
[PATCH] i2c: convert m41t00 to use a workqueue
The m41t00 i2c/rtc driver currently uses a tasklet to schedule
interrupt-level writes to the rtc. This patch causes the driver
to use a workqueue instead.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/chips/m41t00.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/i2c/chips/m41t00.c b/drivers/i2c/chips/m41t00.c index b5aabe7..27fc9ff 100644 --- a/drivers/i2c/chips/m41t00.c +++ b/drivers/i2c/chips/m41t00.c @@ -25,6 +25,7 @@ #include <linux/rtc.h> #include <linux/bcd.h> #include <linux/mutex.h> +#include <linux/workqueue.h> #include <asm/time.h> #include <asm/rtc.h> @@ -111,7 +112,7 @@ m41t00_get_rtc_time(void) } static void -m41t00_set_tlet(ulong arg) +m41t00_set(void *arg) { struct rtc_time tm; ulong nowtime = *(ulong *)arg; @@ -145,9 +146,9 @@ m41t00_set_tlet(ulong arg) return; } -static ulong new_time; - -DECLARE_TASKLET_DISABLED(m41t00_tasklet, m41t00_set_tlet, (ulong)&new_time); +static ulong new_time; +static struct workqueue_struct *m41t00_wq; +static DECLARE_WORK(m41t00_work, m41t00_set, &new_time); int m41t00_set_rtc_time(ulong nowtime) @@ -155,9 +156,9 @@ m41t00_set_rtc_time(ulong nowtime) new_time = nowtime; if (in_interrupt()) - tasklet_schedule(&m41t00_tasklet); + queue_work(m41t00_wq, &m41t00_work); else - m41t00_set_tlet((ulong)&new_time); + m41t00_set(&new_time); return 0; } @@ -189,6 +190,7 @@ m41t00_probe(struct i2c_adapter *adap, int addr, int kind) return rc; } + m41t00_wq = create_singlethread_workqueue("m41t00"); save_client = client; return 0; } @@ -206,7 +208,7 @@ m41t00_detach(struct i2c_client *client) if ((rc = i2c_detach_client(client)) == 0) { kfree(client); - tasklet_kill(&m41t00_tasklet); + destroy_workqueue(m41t00_wq); } return rc; } |