Messages in this thread | | | Date | Wed, 4 Dec 2013 12:57:18 +0200 | From | Mika Westerberg <> | Subject | Re: [PATCH v2] pinctrl: baytrail: lock IRQs when starting them |
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On Tue, Dec 03, 2013 at 06:02:18PM +0200, Mathias Nyman wrote: > On 12/03/2013 05:00 PM, Linus Walleij wrote: > >This uses the new API for tagging GPIO lines as in use by > >IRQs. This enforces a few semantic checks on how the underlying > >GPIO line is used. > > > >Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > >Cc: Mika Westerberg <mika.westerberg@linux.intel.com> > >Cc: Mathias Nyman <mathias.nyman@linux.intel.com> > >Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > >--- > >ChangeLog v1->v2: > >- Actually make the change compile, doh. > >--- > > drivers/pinctrl/pinctrl-baytrail.c | 22 ++++++++++++++++++++++ > > 1 file changed, 22 insertions(+) > > > >diff --git a/drivers/pinctrl/pinctrl-baytrail.c b/drivers/pinctrl/pinctrl-baytrail.c > >index 1174ea86b6e9..998dbb0c4c93 100644 > >--- a/drivers/pinctrl/pinctrl-baytrail.c > >+++ b/drivers/pinctrl/pinctrl-baytrail.c > >@@ -372,11 +372,33 @@ static void byt_irq_mask(struct irq_data *d) > > { > > } > > > >+static unsigned int byt_irq_startup(struct irq_data *d) > >+{ > >+ struct byt_gpio *vg = irq_data_get_irq_handler_data(d); > > This should probably be: > > struct byt_gpio *vg = irq_data_get_irq_chip_data(d); > > As chip methods use irq_data->chip_data, not irq_data->handler_data > (Mika tested that it works on baytrail)
Yes, if it uses irq_data_get_irq_handler_data() I get NULL vg pointer and the kernel crashes. Using irq_data_get_irq_chip_data() makes it work.
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