From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 719E1C433F5 for ; Wed, 29 Aug 2018 21:09:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AFB620652 for ; Wed, 29 Aug 2018 21:09:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AFB620652 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728711AbeH3BIY (ORCPT ); Wed, 29 Aug 2018 21:08:24 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:52566 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728595AbeH3BIY (ORCPT ); Wed, 29 Aug 2018 21:08:24 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w7TL8rMZ059081 for ; Wed, 29 Aug 2018 17:09:42 -0400 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0b-001b2d01.pphosted.com with ESMTP id 2m60r15vxg-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 29 Aug 2018 17:09:42 -0400 Received: from localhost by e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 29 Aug 2018 17:09:36 -0400 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w7TL9Zpq45088916 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 29 Aug 2018 21:09:35 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 573A9124054; Wed, 29 Aug 2018 18:10:14 -0400 (EDT) Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2F457124053; Wed, 29 Aug 2018 18:10:13 -0400 (EDT) Received: from talon7.ibm.com (unknown [9.41.179.222]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 29 Aug 2018 18:10:13 -0400 (EDT) From: Eddie James To: linux-kernel@vger.kernel.org Cc: linux-media@vger.kernel.org, linux-aspeed@lists.ozlabs.org, openbmc@lists.ozlabs.org, andrew@aj.id.au, mchehab@kernel.org, joel@jms.id.au, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, mturquette@baylibre.com, sboyd@kernel.org, linux-arm-kernel@lists.infradead.org, Eddie James Subject: [PATCH 0/4] media: platform: Add Aspeed Video Engine driver Date: Wed, 29 Aug 2018 16:09:29 -0500 X-Mailer: git-send-email 1.8.3.1 X-TM-AS-GCONF: 00 x-cbid: 18082921-0060-0000-0000-000002A65BFC X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009636; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01080714; UDB=6.00557479; IPR=6.00860700; MB=3.00023001; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-29 21:09:40 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18082921-0061-0000-0000-000046558CC5 Message-Id: <1535576973-8067-1-git-send-email-eajames@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-08-29_04:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=950 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1808290206 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs can capture and compress video data from digital or analog sources. With the Aspeed chip acting as a service processor, the Video Engine can capture the host processor graphics output. This series adds a V4L2 driver for the VE, providing a read() interface only. The driver triggers the hardware to capture the host graphics output and compress it to JPEG format. Testing on an AST2500 determined that the videobuf/streaming/mmap interface was significantly slower than the simple read() interface, so I have not included the streaming part. It's also possible to use an automatic mode for the VE such that re-triggering the HW every frame isn't necessary. However this wasn't reliable on the AST2400, and probably used more CPU anyway due to excessive interrupts. It was approximately 15% faster. The series also adds the necessary parent clock definitions to the Aspeed clock driver, with both a mux and clock divider. Eddie James (4): clock: aspeed: Add VIDEO reset index definition clock: aspeed: Setup video engine clocking dt-bindings: media: Add Aspeed Video Engine binding documentation media: platform: Add Aspeed Video Engine driver .../devicetree/bindings/media/aspeed-video.txt | 23 + drivers/clk/clk-aspeed.c | 41 +- drivers/media/platform/Kconfig | 8 + drivers/media/platform/Makefile | 1 + drivers/media/platform/aspeed-video.c | 1307 ++++++++++++++++++++ include/dt-bindings/clock/aspeed-clock.h | 1 + 6 files changed, 1379 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/aspeed-video.txt create mode 100644 drivers/media/platform/aspeed-video.c -- 1.8.3.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: eajames@linux.vnet.ibm.com (Eddie James) Date: Wed, 29 Aug 2018 16:09:29 -0500 Subject: [PATCH 0/4] media: platform: Add Aspeed Video Engine driver Message-ID: <1535576973-8067-1-git-send-email-eajames@linux.vnet.ibm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The Video Engine (VE) embedded in the Aspeed AST2400 and AST2500 SOCs can capture and compress video data from digital or analog sources. With the Aspeed chip acting as a service processor, the Video Engine can capture the host processor graphics output. This series adds a V4L2 driver for the VE, providing a read() interface only. The driver triggers the hardware to capture the host graphics output and compress it to JPEG format. Testing on an AST2500 determined that the videobuf/streaming/mmap interface was significantly slower than the simple read() interface, so I have not included the streaming part. It's also possible to use an automatic mode for the VE such that re-triggering the HW every frame isn't necessary. However this wasn't reliable on the AST2400, and probably used more CPU anyway due to excessive interrupts. It was approximately 15% faster. The series also adds the necessary parent clock definitions to the Aspeed clock driver, with both a mux and clock divider. Eddie James (4): clock: aspeed: Add VIDEO reset index definition clock: aspeed: Setup video engine clocking dt-bindings: media: Add Aspeed Video Engine binding documentation media: platform: Add Aspeed Video Engine driver .../devicetree/bindings/media/aspeed-video.txt | 23 + drivers/clk/clk-aspeed.c | 41 +- drivers/media/platform/Kconfig | 8 + drivers/media/platform/Makefile | 1 + drivers/media/platform/aspeed-video.c | 1307 ++++++++++++++++++++ include/dt-bindings/clock/aspeed-clock.h | 1 + 6 files changed, 1379 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/aspeed-video.txt create mode 100644 drivers/media/platform/aspeed-video.c -- 1.8.3.1