On Tue, Aug 07, 2012 at 17:41:08, Balbi, Felipe wrote: > this helps us reduce unnecessary pm transitions > in case we have another i2c message been started > soon. > s/been started/starting ? > Signed-off-by: Felipe Balbi <balbi@xxxxxx> > --- > drivers/i2c/busses/i2c-omap.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c > index 60928f2..c210b45 100644 > --- a/drivers/i2c/busses/i2c-omap.c > +++ b/drivers/i2c/busses/i2c-omap.c > @@ -645,7 +645,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) > > omap_i2c_wait_for_bb(dev); > out: > - pm_runtime_put(dev->dev); > + pm_runtime_mark_last_busy(dev->dev); > + pm_runtime_put_autosuspend(dev->dev); > return r; > } > > @@ -1113,6 +1114,9 @@ omap_i2c_probe(struct platform_device *pdev) > dev->regs = (u8 *)reg_map_ip_v1; > > pm_runtime_enable(dev->dev); > + pm_runtime_set_autosuspend_delay(dev->dev, 1000); I guess there will always be a debate around what's the right delay for autosuspend ;) You can at least replace the magic number with a macro. > + pm_runtime_use_autosuspend(dev->dev); > + > r = pm_runtime_get_sync(dev->dev); > if (IS_ERR_VALUE(r)) > goto err_free_mem; > @@ -1189,7 +1193,8 @@ omap_i2c_probe(struct platform_device *pdev) > > of_i2c_register_devices(adap); > > - pm_runtime_put(dev->dev); > + pm_runtime_mark_last_busy(dev->dev); > + pm_runtime_put_autosuspend(dev->dev); > > return 0; > > -- > 1.7.12.rc0 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
