From patchwork Wed Sep 5 09:16:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 10588575 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1360B15E9 for ; Wed, 5 Sep 2018 09:17:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0ACA82993E for ; Wed, 5 Sep 2018 09:17:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F1B9729947; Wed, 5 Sep 2018 09:17:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8B1C92993E for ; Wed, 5 Sep 2018 09:17:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=k2lJLSPDXDrrzLPCZFocbCrFkoQKMznrhNo/nA4APzE=; b=uJe mLOD63tLcT/ydm6aFGYeu54jfN0GuruYrXyPPKPqx+d3bpmELg5ayguxf7Vb9SjrXQwPJROVkLFhA h1A6ZO/5kEkNOCVQgW+AL2iHYLV5d62yFd1EpER4UWp5AOqsnuzIgOa9O5Dh6doZmGp/pPE11qoIP JSeS3NtfqxKkkTSEP1x4YiSopOh+SOr9LlS4i8vPaT+aPSBtrRMtF+Y4G8xPguk+3PiDo2D4a29XC Mt1AEEEZfMQxTFReWbHbojDXi8R90rmS24xIOm1HnvmW/QMtRkuFWUfHvXYney0LBpycwJD1ydAjW QH8egDJ/a21TObwdOd+f2/eVHVjFUtw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fxTwc-0007DO-2t; Wed, 05 Sep 2018 09:17:50 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fxTvs-0006t8-Vg for linux-arm-kernel@lists.infradead.org; Wed, 05 Sep 2018 09:17:07 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id 8D2C520812; Wed, 5 Sep 2018 11:16:53 +0200 (CEST) Received: from localhost (AAubervilliers-681-1-92-107.w90-88.abo.wanadoo.fr [90.88.33.107]) by mail.bootlin.com (Postfix) with ESMTPSA id 587EC20618; Wed, 5 Sep 2018 11:16:43 +0200 (CEST) From: Maxime Ripard To: Kishon Vijay Abraham I , Boris Brezillon Subject: [PATCH 00/10] phy: Add configuration interface for MIPI D-PHY devices Date: Wed, 5 Sep 2018 11:16:31 +0200 Message-Id: X-Mailer: git-send-email 2.17.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180905_021705_308479_B9C0B7C9 X-CRM114-Status: GOOD ( 14.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Archit Taneja , Rafal Ciepiela , Krzysztof Witos , Maxime Ripard , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Andrzej Hajda , Chen-Yu Tsai , Laurent Pinchart , Thomas Petazzoni , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Hi, Here is a set of patches to allow the phy framework consumers to test and apply runtime configurations. This is needed to support more phy classes that require tuning based on parameters depending on the current use case of the device, in addition to the power state management already provided by the current functions. A first test bed for that API are the MIPI D-PHY devices. There's a number of solutions that have been used so far to support these phy, most of the time being an ad-hoc driver in the consumer. That approach has a big shortcoming though, which is that this is quite difficult to deal with consumers integrated with multiple variants of phy, of multiple consumers integrated with the same phy. The latter case can be found in the Cadence DSI bridge, and the CSI transceiver and receivers. All of them are integrated with the same phy, or can be integrated with different phy, depending on the implementation. I've looked at all the MIPI DSI drivers I could find, and gathered all the parameters I could find. The interface should be complete, and most of the drivers can be converted in the future. The current set converts two of them: the above mentionned Cadence DSI driver so that the v4l2 drivers can use them, and the Allwinner MIPI-DSI driver. Let me know what you think, Maxime Maxime Ripard (10): phy: Add MIPI D-PHY mode phy: Add configuration interface phy: Add MIPI D-PHY configuration options phy: dphy: Add configuration helpers sun6i: dsi: Convert to generic phy handling phy: Move Allwinner A31 D-PHY driver to drivers/phy/ drm/bridge: cdns: Remove mode_check test drm/bridge: cdns: Separate DSI and D-PHY configuration phy: Add Cadence D-PHY support drm/bridge: cdns: Convert to phy framework drivers/gpu/drm/bridge/cdns-dsi.c | 506 ++------------------- drivers/gpu/drm/sun4i/Kconfig | 3 +- drivers/gpu/drm/sun4i/Makefile | 5 +- drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c | 292 +------------ drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 30 +- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h | 17 +- drivers/phy/Kconfig | 9 +- drivers/phy/Makefile | 2 +- drivers/phy/allwinner/Kconfig | 12 +- drivers/phy/allwinner/Makefile | 1 +- drivers/phy/allwinner/phy-sun6i-mipi-dphy.c | 322 +++++++++++++- drivers/phy/cadence/Kconfig | 13 +- drivers/phy/cadence/Makefile | 1 +- drivers/phy/cadence/cdns-dphy.c | 499 +++++++++++++++++++++- drivers/phy/phy-core-mipi-dphy.c | 160 +++++++- drivers/phy/phy-core.c | 62 +++- include/linux/phy/phy-mipi-dphy.h | 247 ++++++++++- include/linux/phy/phy.h | 49 ++- 18 files changed, 1455 insertions(+), 775 deletions(-) delete mode 100644 drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c create mode 100644 drivers/phy/allwinner/phy-sun6i-mipi-dphy.c create mode 100644 drivers/phy/cadence/Kconfig create mode 100644 drivers/phy/cadence/Makefile create mode 100644 drivers/phy/cadence/cdns-dphy.c create mode 100644 drivers/phy/phy-core-mipi-dphy.c create mode 100644 include/linux/phy/phy-mipi-dphy.h base-commit: 5b394b2ddf0347bef56e50c69a58773c94343ff3