Messages in this thread Patch in this message | | | From | Johannes Poehlmann <> | Subject | [PATCH v3 3/4] w1: ds1wm: silence interrupts on HW before claiming the interrupt | Date | Tue, 18 Jul 2017 13:26:52 +0200 |
| |
Signed-off-by: Johannes Poehlmann <johannes.poehlmann@izt-labs.de> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> --- drivers/w1/masters/ds1wm.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 1b37def..7cb4460 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -510,6 +510,7 @@ static int ds1wm_probe(struct platform_device *pdev) struct ds1wm_driver_data *plat; struct resource *res; int ret; + u8 inten; if (!pdev) return -ENODEV; @@ -563,6 +564,11 @@ static int ds1wm_probe(struct platform_device *pdev) ds1wm_data->int_en_reg_none = (plat->active_high ? DS1WM_INTEN_IAS : 0); ds1wm_data->reset_recover_delay = plat->reset_recover_delay; + /* Mask interrupts, set IAS before claiming interrupt */ + inten = ds1wm_read_register(ds1wm_data, DS1WM_INT_EN); + ds1wm_write_register(ds1wm_data, + DS1WM_INT_EN, ds1wm_data->int_en_reg_none); + if (res->flags & IORESOURCE_IRQ_HIGHEDGE) irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_RISING); if (res->flags & IORESOURCE_IRQ_LOWEDGE) -- 2.1.4
| |