Thread (14 messages) 14 messages, 2 authors, 2017-01-05

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

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From: Rob Herring <hidden>
Date: 2017-01-03 17:47:00
Also in: linux-arm-kernel, lkml

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 <redacted>
---
 .../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 <redacted> 
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