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It supports up to 4 slots, each slot can have its own chained descriptors. Host won't configure the engine directly, but fill some descriptors to encode or decode one jpeg picture. Then configure the descriptors to certain slot register. The jpeg wrapper will schedule between different slots. When some slot is finished, the slot interrupt will be triggered. The purpose of slot is that engine can be shared across multiple VMS and os. Currently, power domains and interrupts are enabled for all 4 slots, but only one slot is used. There is no benefit in using more that one slot from within the same OS, as the slots are scheduled in round-robin manner and not executed in parallel. Use the property "nxp,slot" to assign a single slot, and just expose the parts of the h/w for the assigned slot. For example, only put slot 1's power-domains entry in the DT when slot 1 is assigned. If not specified, 0 is used by default. Signed-off-by: Ming Qian --- v5 - improve commit message - improve property description v4 - improve commit message - drop line making the property required, to avoid ABI break v3 - add vender prefix, change property slot to nxp,slot - add type for property slot v2 - add a new property in bindings document .../bindings/media/nxp,imx8-jpeg.yaml | 46 +++++++++---------- 1 file changed, 22 insertions(+), 24 deletions(-) diff --git a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml index 3d9d1db37040..0961856bdcab 100644 --- a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml +++ b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml @@ -32,19 +32,27 @@ properties: maxItems: 1 interrupts: - description: | - There are 4 slots available in the IP, which the driver may use - If a certain slot is used, it should have an associated interrupt - The interrupt with index i is assumed to be for slot i - minItems: 1 # At least one slot is needed by the driver - maxItems: 4 # The IP has 4 slots available for use + description: + Interrupt number for slot + maxItems: 1 power-domains: description: List of phandle and PM domain specifier as documented in Documentation/devicetree/bindings/power/power_domain.txt - minItems: 2 # Wrapper and 1 slot - maxItems: 5 # Wrapper and 4 slots + minItems: 1 # Mixed power domain + maxItems: 2 # Wrapper and 1 slot + + nxp,slot: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Integer number of slot index used. This IP includes a jpeg wrapper, the + wrapper is working on descriptor based manner. It supports up to 4 slots, + each slot can have its own chained descriptors. The purpose is to share + the jpeg engine across multiple VMS and os. We use this property to + assign a single slot. If not specified, 0 is used by default. + minimum: 0 + maximum: 3 required: - compatible @@ -62,28 +70,18 @@ examples: jpegdec: jpegdec@58400000 { compatible = "nxp,imx8qxp-jpgdec"; reg = <0x58400000 0x00050000 >; - interrupts = , - , - , - ; + interrupts = ; power-domains = <&pd IMX_SC_R_MJPEG_DEC_MP>, - <&pd IMX_SC_R_MJPEG_DEC_S0>, - <&pd IMX_SC_R_MJPEG_DEC_S1>, - <&pd IMX_SC_R_MJPEG_DEC_S2>, - <&pd IMX_SC_R_MJPEG_DEC_S3>; + <&pd IMX_SC_R_MJPEG_DEC_S0>; + nxp,slot = <0>; }; jpegenc: jpegenc@58450000 { compatible = "nxp,imx8qm-jpgenc", "nxp,imx8qxp-jpgenc"; reg = <0x58450000 0x00050000 >; - interrupts = , - , - , - ; + interrupts = ; power-domains = <&pd IMX_SC_R_MJPEG_ENC_MP>, - <&pd IMX_SC_R_MJPEG_ENC_S0>, - <&pd IMX_SC_R_MJPEG_ENC_S1>, - <&pd IMX_SC_R_MJPEG_ENC_S2>, - <&pd IMX_SC_R_MJPEG_ENC_S3>; + <&pd IMX_SC_R_MJPEG_ENC_S0>; + nxp,slot = <0>; }; ... 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Change the property name to nxp,slot. This IP includes a jpeg wrapper and a jpeg engine, the wrapper is working on descriptor based manner. It supports up to 4 slots, each slot can have its own chained descriptors. Host won't configure the engine directly, but fill some descriptors to encode or decode one jpeg picture. Then configure the descriptors to certain slot register. The jpeg wrapper will schedule between different slots. When some slot is finished, the slot interrupt will be triggered. The purpose of slot is that engine can be shared across multiple VMS and os. Currently, power domains and interrupts are enabled for all 4 slots, but only one slot is used. There is no benefit in using more that one slot from within the same OS, as the slots are scheduled in round-robin manner and not executed in parallel. Use the property "nxp,slot" to assign a single slot, and just expose the parts of the h/w for the assigned slot. For example, only put slot 1's power-domains entry in the DT when slot 1 is assigned. If not specified, 0 is used by default. Fixes: 5943de495b6d ("arm64: dts: imx8-ss-img: Assign slot for imx jpeg encoder/decoder") Signed-off-by: Ming Qian --- v5 - improve commit message - update patch based on commit 4d5ab2376ec5 v4 - improve commit message v3 - add vender prefix, change property slot to nxp,slot v2 - add a new property in bindings document arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi index e7783cc2d830..8ba4b0260a6b 100644 --- a/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-ss-img.dtsi @@ -27,7 +27,7 @@ jpegdec: jpegdec@58400000 { assigned-clock-rates = <200000000>, <200000000>; power-domains = <&pd IMX_SC_R_MJPEG_DEC_MP>, <&pd IMX_SC_R_MJPEG_DEC_S0>; - slot = <0>; + nxp,slot = <0>; }; jpegenc: jpegenc@58450000 { @@ -41,7 +41,7 @@ jpegenc: jpegenc@58450000 { assigned-clock-rates = <200000000>, <200000000>; power-domains = <&pd IMX_SC_R_MJPEG_ENC_MP>, <&pd IMX_SC_R_MJPEG_ENC_S0>; - slot = <0>; + nxp,slot = <0>; }; img_jpeg_dec_lpcg: clock-controller@585d0000 { From patchwork Thu Oct 19 02:48:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ming Qian(OSS)" X-Patchwork-Id: 13428205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2CC22CDB482 for ; Thu, 19 Oct 2023 02:49:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3400576c-bb36-414f-1f05-08dbd04de53d X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB6341.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Oct 2023 02:48:38.1451 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: CbR3gqLD+7IZjDaOU0O4BPvqO9+DXI4/nplvyqh50TC0x4PTK1sATMBWpwEsdtofO6+WqAU6lkeEXOOM6Ks54A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS5PR04MB10000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231018_194845_550446_3A59E269 X-CRM114-Status: GOOD ( 12.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ming Qian The slot property isn't generic property, add vendor prefix. Change the property name to nxp,slot. Fixes: 53ebeea50599 ("media: imx-jpeg: Support to assign slot for encoder/decoder") Signed-off-by: Ming Qian --- v5 - add vender prefix, change property slot to nxp,slot v4 - nothing changed here, just modify the bindings and dts v3 - nothing changed here, just modify the bindings and dts v2 - nothing changed here, just modify the bindings and dts drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c index 64112b63298c..f8b99a292ad1 100644 --- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c @@ -2762,7 +2762,7 @@ static int mxc_jpeg_probe(struct platform_device *pdev) if (IS_ERR(jpeg->base_reg)) return PTR_ERR(jpeg->base_reg); - ret = of_property_read_u32_index(pdev->dev.of_node, "slot", 0, &jpeg->slot_data.slot); + ret = of_property_read_u32_index(pdev->dev.of_node, "nxp,slot", 0, &jpeg->slot_data.slot); if (ret) jpeg->slot_data.slot = 0; dev_info(&pdev->dev, "choose slot %d\n", jpeg->slot_data.slot);