Re: [1/3,v2] powerpc/dts: update MSI bindings doc for MPIC v4.3
From: Scott Wood <hidden>
Date: 2013-08-08 00:30:32
Subsystem:
linux for powerpc (32-bit and 64-bit), linux for powerpc embedded ppc85xx, open firmware and flattened device tree bindings, the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Scott Wood, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
On Fri, Jun 21, 2013 at 06:59:12PM +0800, Minghuan Lian wrote:
Add compatible "fsl,mpic-msi-v4.3" for MPIC v4.3. MPIC v4.3 contains MSIIR and MSIIR1. MSIIR supports 8 MSI registers and MSIIR1 supports 16 MSI registers, but uses different IBS and SRS shift. When using MSIR1, the interrupt number is not consecutive. It is hard to use 'msi-available-ranges' to describe the ranges of the available interrupt, so MPIC v4.3 does not support this property. Signed-off-by: Minghuan Lian <redacted> --- v2 log: 1. move msi-available-ranges to optional properties. .../devicetree/bindings/powerpc/fsl/msi-pic.txt | 51 +++++++++++++++++----- 1 file changed, 40 insertions(+), 11 deletions(-)
Applied with these changes:
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt b/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt
index d82b080..82dd5b6 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/msi-pic.txt@@ -1,13 +1,13 @@ * Freescale MSI interrupt controller Required properties: -- compatible : compatible list, may contains one or two entries, - first is "fsl,CHIP-msi", where CHIP is the processor(mpc8610, mpc8572, +- compatible : compatible list, may contain one or two entries + The first is "fsl,CHIP-msi", where CHIP is the processor(mpc8610, mpc8572, etc.) and the second is "fsl,mpic-msi" or "fsl,ipic-msi" or "fsl,mpic-msi-v4.3" depending on the parent type and version. If mpic version is 4.3, the number of MSI registers is increased to 16, MSIIR1 is - provided to access these 16 registers, compatible "fsl,mpic-msi-v4.3" - should be used. The first entry is optional, the second entry must be + provided to access these 16 registers, and compatible "fsl,mpic-msi-v4.3" + should be used. The first entry is optional; the second entry is required. - reg : It may contain one or two regions. The first region should contain -Scott