1. 02 Apr, 2013 19 commits
  2. 28 Mar, 2013 1 commit
    • Bastian Hecht's avatar
      irqchip: intc-irqpin: Add support for shared interrupt lines · 427cc720
      Bastian Hecht authored
      On some hardware we don't have a 1-1 mapping from the external
      interrupts coming from INTC to the GIC SPI pins. We can however
      share lines to demux incoming IRQs on these SoCs.
      
      This patch enables the intc_irqpin driver to detect requests for shared
      interrupt lines and demuxes them properly by querying the INTC INTREQx0A
      registers.
      
      If you need multiple shared intc_irqpin device instances, be sure to mask
      out all interrupts on the INTC that share the one line before you start
      to register them. Else you run into IRQ floods that would be caused by
      interrupts for which no handler has been set up yet when the first
      intc_irqpin device is registered.
      Signed-off-by: default avatarBastian Hecht <hechtb+renesas@gmail.com>
      Acked-by: default avatarMagnus Damm <damm@opensource.se>
      Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
      427cc720
  3. 18 Mar, 2013 15 commits
  4. 12 Mar, 2013 5 commits