From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
To: Philipp Zabel <pza@pengutronix.de>
Cc: ezequiel@collabora.com, mchehab@kernel.org, robh+dt@kernel.org,
shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com,
lee.jones@linaro.org, gregkh@linuxfoundation.org,
mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org,
jernej.skrabec@siol.net, hverkuil-cisco@xs4all.nl,
emil.l.velikov@gmail.com, kernel@pengutronix.de,
linux-imx@nxp.com, linux-media@vger.kernel.org,
linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
kernel@collabora.com
Subject: Re: [PATCH v6 02/13] dt-bindings: media: nxp,imx8mq-vpu: Update the bindings for G2 support
Date: Fri, 26 Mar 2021 15:26:15 +0100 [thread overview]
Message-ID: <3c23bfb0-eed4-63ad-be70-58aa129b0e35@collabora.com> (raw)
In-Reply-To: <20210326141156.GA8441@pengutronix.de>
Le 26/03/2021 à 15:11, Philipp Zabel a écrit :
> On Thu, Mar 18, 2021 at 09:20:35AM +0100, Benjamin Gaignard wrote:
>> Introducing G2 hevc video decoder lead to modify the bindings to allow
>> to get one node per VPUs.
>> VPUs share one hardware control block which is provided as a phandle on
>> an syscon.
>> Each node got now one reg and one interrupt.
>> Add a compatible for G2 hardware block: nxp,imx8mq-vpu-g2.
>>
>> To be compatible with older DT the driver is still capable to use 'ctrl'
>> reg-name even if it is deprecated now.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
>> ---
>> version 5:
>> - This version doesn't break the backward compatibilty between kernel
>> and DT.
>>
>> .../bindings/media/nxp,imx8mq-vpu.yaml | 53 ++++++++++++-------
>> 1 file changed, 34 insertions(+), 19 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml b/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
>> index 762be3f96ce9..79502fc8bde5 100644
>> --- a/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
>> +++ b/Documentation/devicetree/bindings/media/nxp,imx8mq-vpu.yaml
>> @@ -15,22 +15,18 @@ description:
>>
>> properties:
>> compatible:
>> - const: nxp,imx8mq-vpu
>> + oneOf:
>> + - const: nxp,imx8mq-vpu
>> + - const: nxp,imx8mq-vpu-g2
>>
>> reg:
>> - maxItems: 3
>> -
>> - reg-names:
>> - items:
>> - - const: g1
>> - - const: g2
>> - - const: ctrl
>> + maxItems: 1
>>
>> interrupts:
>> - maxItems: 2
>> + maxItems: 1
>>
>> interrupt-names:
>> - items:
>> + oneOf:
>> - const: g1
>> - const: g2
>>
>> @@ -46,14 +42,18 @@ properties:
>> power-domains:
>> maxItems: 1
>>
>> + nxp,imx8mq-vpu-ctrl:
>> + description: Specifies a phandle to syscon VPU hardware control block
>> + $ref: "/schemas/types.yaml#/definitions/phandle"
>> +
> Should we drop the 'q' here, i.e. nxp,imx8m-vpu-ctrl so we can use the same
> binding for i.MX8MM later?
I don't know if the control block is the same or not on IMX8MM, so I have only
put a compatible targeting IMX8MQ.
>
>> required:
>> - compatible
>> - reg
>> - - reg-names
>> - interrupts
>> - interrupt-names
>> - clocks
>> - clock-names
>> + - nxp,imx8mq-vpu-ctrl
>>
>> additionalProperties: false
>>
>> @@ -62,18 +62,33 @@ examples:
>> #include <dt-bindings/clock/imx8mq-clock.h>
>> #include <dt-bindings/interrupt-controller/arm-gic.h>
>>
>> - vpu: video-codec@38300000 {
>> + vpu_ctrl: syscon@38320000 {
>> + compatible = "nxp,imx8mq-vpu-ctrl", "syscon";
>> + reg = <0x38320000 0x10000>;
>> + };
>> +
>> + vpu_g1: video-codec@38300000 {
>> compatible = "nxp,imx8mq-vpu";
>> - reg = <0x38300000 0x10000>,
>> - <0x38310000 0x10000>,
>> - <0x38320000 0x10000>;
>> - reg-names = "g1", "g2", "ctrl";
>> - interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
>> - <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
>> - interrupt-names = "g1", "g2";
>> + reg = <0x38300000 0x10000>;
>> + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
>> + interrupt-names = "g1";
>> + clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
>> + <&clk IMX8MQ_CLK_VPU_G2_ROOT>,
> Does the G1 VPU require the G2 clock and vice versa?
Yes either the control hardware block won't work.
Benjamin
>
> regards
> Philipp
>
next prev parent reply other threads:[~2021-03-26 14:27 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-18 8:20 [PATCH v6 00/13] Add HANTRO G2/HEVC decoder support for IMX8MQ Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 01/13] dt-bindings: mfd: Add 'nxp,imx8mq-vpu-ctrl' to syscon list Benjamin Gaignard
2021-03-23 22:33 ` [PATCH v6 01/13] dt-bindings: mfd: Add 'nxp, imx8mq-vpu-ctrl' " Rob Herring
2021-03-18 8:20 ` [PATCH v6 02/13] dt-bindings: media: nxp,imx8mq-vpu: Update the bindings for G2 support Benjamin Gaignard
2021-03-23 22:35 ` [PATCH v6 02/13] dt-bindings: media: nxp, imx8mq-vpu: " Rob Herring
2021-03-26 14:11 ` [PATCH v6 02/13] dt-bindings: media: nxp,imx8mq-vpu: " Philipp Zabel
2021-03-26 14:26 ` Benjamin Gaignard [this message]
2021-03-26 14:37 ` Philipp Zabel
2021-03-18 8:20 ` [PATCH v6 03/13] media: hantro: Use syscon instead of 'ctrl' register Benjamin Gaignard
2021-03-26 14:13 ` Philipp Zabel
2021-03-18 8:20 ` [PATCH v6 04/13] media: hevc: Add fields and flags for hevc PPS Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 05/13] media: hevc: Add decode params control Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 06/13] media: hantro: change hantro_codec_ops run prototype to return errors Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 07/13] media: hantro: Define HEVC codec profiles and supported features Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 08/13] media: hantro: Only use postproc when post processed formats are defined Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 09/13] media: uapi: Add a control for HANTRO driver Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 10/13] media: hantro: handle V4L2_PIX_FMT_HEVC_SLICE control Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 11/13] media: hantro: Introduce G2/HEVC decoder Benjamin Gaignard
2021-03-18 8:20 ` [PATCH v6 12/13] media: hantro: IMX8M: add variant for G2/HEVC codec Benjamin Gaignard
2021-03-26 14:18 ` Philipp Zabel
2021-03-18 8:20 ` [PATCH v6 13/13] arm64: dts: imx8mq: Add node to G2 hardware Benjamin Gaignard
2021-03-26 14:24 ` Philipp Zabel
2021-03-26 14:33 ` Benjamin Gaignard
2021-03-26 15:28 ` Ezequiel Garcia
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