From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: Samuel Holland <samuel@sholland.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Maxime Ripard <mripard@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-staging@lists.linux.dev,
linux-sunxi@lists.linux.dev
Subject: Re: [PATCH 2/4] media: dt-bindings: cedrus: Make allwinner,sram optional
Date: Thu, 5 Jan 2023 10:57:27 +0100 [thread overview]
Message-ID: <Y7afB98vPc56bDhm@aptenodytes> (raw)
In-Reply-To: <20221231164628.19688-3-samuel@sholland.org>
[-- Attachment #1.1: Type: text/plain, Size: 1453 bytes --]
Hi Samuel,
On Sat 31 Dec 22, 10:46, Samuel Holland wrote:
> Allwinner SoCs can remap some bits of peripheral SRAM to a contiguous
> range of addresses for use by early boot software. Usually the video
> engine's SRAM is used for this purpose, so its mapping must be switched
> back before the hardware can be used.
>
> However, the D1 and related SoCs use the DSP SRAM for this purpose. As a
> result, the video engine SRAM is not switchable, and there is no need
> for an allwinner,sram reference in the devicetree.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cheers,
Paul
> ---
>
> .../bindings/media/allwinner,sun4i-a10-video-engine.yaml | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> index d5be7f604e8c..74363b242fff 100644
> --- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> +++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> @@ -73,7 +73,6 @@ required:
> - clocks
> - clock-names
> - resets
> - - allwinner,sram
>
> additionalProperties: false
>
> --
> 2.37.4
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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WARNING: multiple messages have this Message-ID (diff)
From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: Samuel Holland <samuel@sholland.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Maxime Ripard <mripard@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-staging@lists.linux.dev,
linux-sunxi@lists.linux.dev
Subject: Re: [PATCH 2/4] media: dt-bindings: cedrus: Make allwinner,sram optional
Date: Thu, 5 Jan 2023 10:57:27 +0100 [thread overview]
Message-ID: <Y7afB98vPc56bDhm@aptenodytes> (raw)
In-Reply-To: <20221231164628.19688-3-samuel@sholland.org>
[-- Attachment #1: Type: text/plain, Size: 1453 bytes --]
Hi Samuel,
On Sat 31 Dec 22, 10:46, Samuel Holland wrote:
> Allwinner SoCs can remap some bits of peripheral SRAM to a contiguous
> range of addresses for use by early boot software. Usually the video
> engine's SRAM is used for this purpose, so its mapping must be switched
> back before the hardware can be used.
>
> However, the D1 and related SoCs use the DSP SRAM for this purpose. As a
> result, the video engine SRAM is not switchable, and there is no need
> for an allwinner,sram reference in the devicetree.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cheers,
Paul
> ---
>
> .../bindings/media/allwinner,sun4i-a10-video-engine.yaml | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> index d5be7f604e8c..74363b242fff 100644
> --- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> +++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> @@ -73,7 +73,6 @@ required:
> - clocks
> - clock-names
> - resets
> - - allwinner,sram
>
> additionalProperties: false
>
> --
> 2.37.4
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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WARNING: multiple messages have this Message-ID (diff)
From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: Samuel Holland <samuel@sholland.org>
Cc: Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Conor Dooley <conor@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Maxime Ripard <mripard@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
linux-riscv@lists.infradead.org, linux-staging@lists.linux.dev,
linux-sunxi@lists.linux.dev
Subject: Re: [PATCH 2/4] media: dt-bindings: cedrus: Make allwinner,sram optional
Date: Thu, 5 Jan 2023 10:57:27 +0100 [thread overview]
Message-ID: <Y7afB98vPc56bDhm@aptenodytes> (raw)
In-Reply-To: <20221231164628.19688-3-samuel@sholland.org>
[-- Attachment #1.1: Type: text/plain, Size: 1453 bytes --]
Hi Samuel,
On Sat 31 Dec 22, 10:46, Samuel Holland wrote:
> Allwinner SoCs can remap some bits of peripheral SRAM to a contiguous
> range of addresses for use by early boot software. Usually the video
> engine's SRAM is used for this purpose, so its mapping must be switched
> back before the hardware can be used.
>
> However, the D1 and related SoCs use the DSP SRAM for this purpose. As a
> result, the video engine SRAM is not switchable, and there is no need
> for an allwinner,sram reference in the devicetree.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Cheers,
Paul
> ---
>
> .../bindings/media/allwinner,sun4i-a10-video-engine.yaml | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> index d5be7f604e8c..74363b242fff 100644
> --- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> +++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
> @@ -73,7 +73,6 @@ required:
> - clocks
> - clock-names
> - resets
> - - allwinner,sram
>
> additionalProperties: false
>
> --
> 2.37.4
>
--
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-01-05 20:05 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-31 16:46 [PATCH 0/4] Allwinner D1 video engine support Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` [PATCH 1/4] media: dt-bindings: cedrus: Allow power domain references Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 19:05 ` Krzysztof Kozlowski
2022-12-31 19:05 ` Krzysztof Kozlowski
2022-12-31 19:05 ` Krzysztof Kozlowski
2023-01-05 10:43 ` Paul Kocialkowski
2023-01-05 10:43 ` Paul Kocialkowski
2023-01-05 10:43 ` Paul Kocialkowski
2023-01-05 14:48 ` Samuel Holland
2023-01-05 14:48 ` Samuel Holland
2023-01-05 14:48 ` Samuel Holland
2023-01-05 16:18 ` Jernej Škrabec
2023-01-05 16:18 ` Jernej Škrabec
2023-01-05 16:18 ` Jernej Škrabec
2022-12-31 16:46 ` [PATCH 2/4] media: dt-bindings: cedrus: Make allwinner,sram optional Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 19:06 ` Krzysztof Kozlowski
2022-12-31 19:06 ` Krzysztof Kozlowski
2022-12-31 19:06 ` Krzysztof Kozlowski
2023-01-05 9:57 ` Paul Kocialkowski [this message]
2023-01-05 9:57 ` Paul Kocialkowski
2023-01-05 9:57 ` Paul Kocialkowski
2022-12-31 16:46 ` [PATCH 3/4] media: cedrus: Make SRAM section claiming optional Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2023-01-05 10:02 ` Paul Kocialkowski
2023-01-05 10:02 ` Paul Kocialkowski
2023-01-05 10:02 ` Paul Kocialkowski
2023-01-05 16:19 ` Jernej Škrabec
2023-01-05 16:19 ` Jernej Škrabec
2023-01-05 16:19 ` Jernej Škrabec
2022-12-31 16:46 ` [PATCH 4/4] riscv: dts: allwinner: d1: Add video engine node Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2022-12-31 16:46 ` Samuel Holland
2023-01-05 10:11 ` Paul Kocialkowski
2023-01-05 10:11 ` Paul Kocialkowski
2023-01-05 10:11 ` Paul Kocialkowski
2023-01-05 14:38 ` Samuel Holland
2023-01-05 14:38 ` Samuel Holland
2023-01-05 14:38 ` Samuel Holland
2023-01-05 16:21 ` Jernej Škrabec
2023-01-05 16:21 ` Jernej Škrabec
2023-01-05 16:21 ` Jernej Škrabec
2023-02-15 0:25 ` Palmer Dabbelt
2023-02-15 0:25 ` Palmer Dabbelt
2023-02-15 0:25 ` Palmer Dabbelt
2023-01-23 12:33 ` [PATCH 0/4] Allwinner D1 video engine support Hans Verkuil
2023-01-23 12:33 ` Hans Verkuil
2023-01-23 12:33 ` Hans Verkuil
2023-01-24 5:11 ` Samuel Holland
2023-01-24 5:11 ` Samuel Holland
2023-01-24 5:11 ` Samuel Holland
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