linux-kernel - Re: [PATCH -next] staging/android/ion: remove useless document file

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Date:   Mon, 8 May 2017 07:32:37 -0700
From:   Laura Abbott <labbott@...hat.com>
To:     Yisheng Xie <ysxie@...mail.com>, sumit.semwal@...aro.org,
        gregkh@...uxfoundation.org, arve@...roid.com,
        riandrews@...roid.com, wporter82@...il.com
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] staging/android/ion: remove useless document file

On 05/06/2017 02:49 AM, Yisheng Xie wrote:
> From: Yisheng Xie <xieyisheng1@...wei.com>
> 
> After commit 9828282e33a0 ("staging: android: ion: Remove old platform
> support"), the document about devicetree of ion is no need anymore, so
> just remove it.
> 

Acked-by: Laura Abbott <labbott@...hat.com>

> Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
> ---
>  .../devicetree/bindings/staging/ion/hi6220-ion.txt | 31 -------------
>  MAINTAINERS                                        |  1 -
>  drivers/staging/android/ion/devicetree.txt         | 51 ----------------------
>  3 files changed, 83 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
>  delete mode 100644 drivers/staging/android/ion/devicetree.txt
> 
> diff --git a/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt b/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
> deleted file mode 100644
> index c59e27c..0000000
> --- a/Documentation/devicetree/bindings/staging/ion/hi6220-ion.txt
> +++ /dev/null
> @@ -1,31 +0,0 @@
> -Hi6220 SoC ION
> -===================================================================
> -Required properties:
> -- compatible : "hisilicon,hi6220-ion"
> -- list of the ION heaps
> -	- heap name : maybe heap_sys_user@0
> -	- heap id   : id should be unique in the system.
> -	- heap base : base ddr address of the heap,0 means that
> -	it is dynamic.
> -	- heap size : memory size and 0 means it is dynamic.
> -	- heap type : the heap type of the heap, please also
> -	see the define in ion.h(drivers/staging/android/uapi/ion.h)
> --------------------------------------------------------------------
> -Example:
> -	hi6220-ion {
> -		compatible = "hisilicon,hi6220-ion";
> -		heap_sys_user@0 {
> -			heap-name = "sys_user";
> -			heap-id   = <0x0>;
> -			heap-base = <0x0>;
> -			heap-size = <0x0>;
> -			heap-type = "ion_system";
> -		};
> -		heap_sys_contig@0 {
> -			heap-name = "sys_contig";
> -			heap-id   = <0x1>;
> -			heap-base = <0x0>;
> -			heap-size = <0x0>;
> -			heap-type = "ion_system_contig";
> -		};
> -	};
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 58590cf..9ec008c 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -846,7 +846,6 @@ M:	Laura Abbott <labbott@...hat.com>
>  M:	Sumit Semwal <sumit.semwal@...aro.org>
>  L:	devel@...verdev.osuosl.org
>  S:	Supported
> -F:	Documentation/devicetree/bindings/staging/ion/
>  F:	drivers/staging/android/ion
>  F:	drivers/staging/android/uapi/ion.h
>  F:	drivers/staging/android/uapi/ion_test.h
> diff --git a/drivers/staging/android/ion/devicetree.txt b/drivers/staging/android/ion/devicetree.txt
> deleted file mode 100644
> index 16871527..0000000
> --- a/drivers/staging/android/ion/devicetree.txt
> +++ /dev/null
> @@ -1,51 +0,0 @@
> -Ion Memory Manager
> -
> -Ion is a memory manager that allows for sharing of buffers via dma-buf.
> -Ion allows for different types of allocation via an abstraction called
> -a 'heap'. A heap represents a specific type of memory. Each heap has
> -a different type. There can be multiple instances of the same heap
> -type.
> -
> -Specific heap instances are tied to heap IDs. Heap IDs are not to be specified
> -in the devicetree.
> -
> -Required properties for Ion
> -
> -- compatible: "linux,ion" PLUS a compatible property for the device
> -
> -All child nodes of a linux,ion node are interpreted as heaps
> -
> -required properties for heaps
> -
> -- compatible: compatible string for a heap type PLUS a compatible property
> -for the specific instance of the heap. Current heap types
> --- linux,ion-heap-system
> --- linux,ion-heap-system-contig
> --- linux,ion-heap-carveout
> --- linux,ion-heap-chunk
> --- linux,ion-heap-dma
> --- linux,ion-heap-custom
> -
> -Optional properties
> -- memory-region: A phandle to a memory region. Required for DMA heap type
> -(see reserved-memory.txt for details on the reservation)
> -
> -Example:
> -
> -	ion {
> -		compatbile = "hisilicon,ion", "linux,ion";
> -
> -		ion-system-heap {
> -			compatbile = "hisilicon,system-heap", "linux,ion-heap-system"
> -		};
> -
> -		ion-camera-region {
> -			compatible = "hisilicon,camera-heap", "linux,ion-heap-dma"
> -			memory-region = <&camera_region>;
> -		};
> -
> -		ion-fb-region {
> -			compatbile = "hisilicon,fb-heap", "linux,ion-heap-dma"
> -			memory-region = <&fb_region>;
> -		};
> -	}
>