Wed, 23 Jul 2014 17:10:26 +0200 от Linus Walleij <[email protected]>: > On Wed, Jul 16, 2014 at 12:43 PM, Grygorii Strashko > <[email protected]> wrote: > > > From: Murali Karicheri <[email protected]> > > > > On Keystone SOCs, ARM host can send interrupts to DSP cores using the > > DSP GPIO controller IP. Each DSP GPIO controller provides 28 IRQ signals for > > each DSP core. This is one of the component used by the IPC mechanism used > > on Keystone SOCs. > > > > Keystone 2 DSP GPIO controller has specific features: > > - each GPIO can be configured only as output pin; > > - setting GPIO value to 1 causes IRQ generation on target DSP core; > > - reading pin value returns 0 - if IRQ was handled or 1 - IRQ is still > > pending. > > > > Signed-off-by: Murali Karicheri <[email protected]> > > Signed-off-by: Grygorii Strashko <[email protected]> ... > And if you proceed with this, please integrate it with > drivers/gpio/gpio-syscon.c, I don't need more special > syscons GPIO handlers. > > > +#include <linux/mfd/syscon.h> > > Kconfig needs depends on MFD_SYSCON, right?
It should be selected by the platform. For compile test this symbol is not needed. ---
