On Monday 06 October 2008, Felipe Balbi wrote:
> On Mon, Oct 06, 2008 at 01:19:18AM -0700, David Brownell wrote:
> > ...
> >
> > (This is similar to the GPIO patch I just sent, but simpler
> > except for the impact on the few drivers thinking oddly
> > about IRQs. Those patches cover the key SIH modules, and
> > a similar one affects the PIH in twl4030-core.)
>
> What are the dependencies for this patch ? It doesn't apply cleanly.
Applies against current GIT with a few minor offsets caused
by the patch working around the i2c-omap timeouts. I've sent
that before; it's appended for reference.
---
drivers/i2c/chips/twl4030-pwrirq.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/i2c/chips/twl4030-pwrirq.c
+++ b/drivers/i2c/chips/twl4030-pwrirq.c
@@ -161,6 +161,8 @@ static int twl4030_pwrirq_thread(void *d
return 0;
}
+#include <linux/delay.h>
+
static int __init twl4030_pwrirq_init(void)
{
int i, err;
@@ -168,8 +170,16 @@ static int __init twl4030_pwrirq_init(vo
twl4030_pwrirq_mask = 0xff;
twl4030_pwrirq_pending_unmask = 0;
+/* HEY: core already did this.
+ * But that's surely not why we
+ * sometimes see i2c timeouts here ...
+ */
+for (i = 0; i < 5; i++) {
err = twl4030_i2c_write_u8(TWL4030_MODULE_INT, twl4030_pwrirq_mask,
TWL4030_INT_PWR_IMR1);
+if (!err) break;
+msleep(10);
+}
if (err)
return err;
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