On Tue, Apr 17, 2018 at 7:42 AM, Phil Edworthy <phil.edworthy@xxxxxxxxxxx> wrote: > The DesignWare GPIO IP can be configured for either 1 interrupt or 1 > per GPIO in port A, but the driver currently only supports 1 interrupt. > See the DesignWare DW_apb_gpio Databook description of the > 'GPIO_INTR_IO' parameter. > > This change allows the driver to work with up to 32 interrupts, it will > get as many interrupts as specified in the DT 'interrupts' property. > It doesn't do anything clever with the different interrupts, it just calls > the same handler used for single interrupt hardware. > > Signed-off-by: Phil Edworthy <phil.edworthy@xxxxxxxxxxx> > --- > One point to mention is that I have made it possible for users to have > unconncted interrupts by specifying holes in the list of interrupts. This is > done by supporting the interrupts-extended DT prop. > However, I have no use for this and had to hack some test case for this. > Perhaps the driver should support 1 interrupt or all GPIOa as interrupts? > > v4: > - Use of_irq_get() instead of of_irq_parse_one()+irq_create_of_mapping() > v3: > - Rolled mfd: intel_quark_i2c_gpio fix into this patch to avoid bisect problems > v2: > - Replaced interrupt-mask DT prop with support for the interrupts-extended > prop. This means replacing the call to irq_of_parse_and_map() with calls > to of_irq_parse_one() and irq_create_of_mapping(). > > Note: There are a few *code* lines over 80 chars, but this is just guidance, > right? Especially as there are already some lines over 80 chars. > > snps:gpio fix > > Signed-off-by: Phil Edworthy <phil.edworthy@xxxxxxxxxxx> > --- > .../devicetree/bindings/gpio/snps-dwapb-gpio.txt | 9 +++-- > drivers/gpio/gpio-dwapb.c | 42 +++++++++++++++++----- > drivers/mfd/intel_quark_i2c_gpio.c | 3 +- > include/linux/platform_data/gpio-dwapb.h | 3 +- > 4 files changed, 44 insertions(+), 13 deletions(-) Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
