[PATCH 8/9] irqchip/ls-scfg-msi: add LS1043a v1.1 MSI support

Rob Herring robh at kernel.org
Tue Jan 3 09:46:01 PST 2017


On Tue, Dec 27, 2016 at 05:13:04PM +0800, Minghuan Lian wrote:
> A MSI controller of LS1043a v1.0 only includes one MSIR and
> is assigned one GIC interrupt. In order to support affinity,
> LS1043a v1.1 MSI is assigned 4 MSIRs and 4 GIC interrupts.
> But the MSIR has the different offset and only supports 8 MSIs.
> The bits between variable bit_start and bit_end in structure
> ls_scfg_msir are used to show 8 MSI interrupts. msir_irqs and
> msir_base are added to describe the difference of MSI between
> LS1043a v1.1 and other SoCs.
> 
> Signed-off-by: Minghuan Lian <Minghuan.Lian at nxp.com>
> ---
>  .../interrupt-controller/fsl,ls-scfg-msi.txt       |  1 +
>  drivers/irqchip/irq-ls-scfg-msi.c                  | 45 +++++++++++++++++++---
>  2 files changed, 40 insertions(+), 6 deletions(-)

Acked-by: Rob Herring <robh at kernel.org> 



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