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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 A23F8C433E6 for ; Fri, 15 Jan 2021 20:04:23 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 23C8C23B04 for ; Fri, 15 Jan 2021 20:04:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 23C8C23B04 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: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:List-Owner; bh=d3CIb9x+BnCI23NO7GVvwPfPJVuj5nxPOdxkpoCYyb8=; b=SbF8SiX/2vJnZv6ddfnXtGRhj r3mORFr/ewh0QRLYu/BUDxU9QdwD4vP0+TWwueOuWOgHkMB+sMxqANZcaErBGCYguhKPrYewZUvTl X/8LMH3S3oDlcgWEjgcZVVYqcjHAR9ek5rrnlnbjzbZ2fksTHX1bjiIstEYsLGBV4xYcLGFfpUA49 XhOzDjpO/4/AIREXW2/D0vnoGdL6Ek+BGnB042VXQVPNEQyKkOMdTfy2nkpvFfiDOHNTEOeSG6/kj d5LX3D8kjTxYddWcNxWeZTyLVzGHKhknH+BG4gA0+3RPjeUOyVa1u6PI9EeMWo8iCOqPuRpOTuJaZ khPKlc1+g==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0VIK-0002UL-Ra; Fri, 15 Jan 2021 20:02:04 +0000 Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l0VIE-0002Rv-IU for linux-arm-kernel@lists.infradead.org; Fri, 15 Jan 2021 20:01:59 +0000 X-Originating-IP: 93.29.109.196 Received: from localhost.localdomain (196.109.29.93.rev.sfr.net [93.29.109.196]) (Authenticated sender: paul.kocialkowski@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 9C5D61C0005; Fri, 15 Jan 2021 20:01:55 +0000 (UTC) From: Paul Kocialkowski To: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devel@driverdev.osuosl.org, linux-sunxi@googlegroups.com Subject: [PATCH v5 02/16] phy: Distinguish between Rx and Tx for MIPI D-PHY with submodes Date: Fri, 15 Jan 2021 21:01:27 +0100 Message-Id: <20210115200141.1397785-3-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210115200141.1397785-1-paul.kocialkowski@bootlin.com> References: <20210115200141.1397785-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210115_150158_789936_3ECD2428 X-CRM114-Status: GOOD ( 14.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jernej Skrabec , Dafna Hirschfeld , Philipp Zabel , Jonathan Corbet , Thomas Petazzoni , Greg Kroah-Hartman , Helen Koike , Vinod Koul , Maxime Ripard , Kishon Vijay Abraham I , Paul Kocialkowski , Chen-Yu Tsai , Rob Herring , Hans Verkuil , Ezequiel Garcia , Yong Deng , Sakari Ailus , Mauro Carvalho Chehab , kevin.lhopital@hotmail.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As some D-PHY controllers support both Rx and Tx mode, we need a way for users to explicitly request one or the other. For instance, Rx mode can be used along with MIPI CSI-2 while Tx mode can be used with MIPI DSI. Introduce new MIPI D-PHY PHY submodes to use with PHY_MODE_MIPI_DPHY. The default (zero value) is kept to Tx so only the rkisp1 driver, which uses D-PHY in Rx mode, needs to be adapted. Signed-off-by: Paul Kocialkowski Acked-by: Helen Koike --- drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c | 3 ++- include/linux/phy/phy-mipi-dphy.h | 13 +++++++++++++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c index 2e5b57e3aedc..cab261644102 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c @@ -948,7 +948,8 @@ static int rkisp1_mipi_csi2_start(struct rkisp1_isp *isp, phy_mipi_dphy_get_default_config(pixel_clock, isp->sink_fmt->bus_width, sensor->lanes, cfg); - phy_set_mode(sensor->dphy, PHY_MODE_MIPI_DPHY); + phy_set_mode_ext(cdev->dphy, PHY_MODE_MIPI_DPHY, + PHY_MIPI_DPHY_SUBMODE_RX); phy_configure(sensor->dphy, &opts); phy_power_on(sensor->dphy); diff --git a/include/linux/phy/phy-mipi-dphy.h b/include/linux/phy/phy-mipi-dphy.h index a877ffee845d..0f57ef46a8b5 100644 --- a/include/linux/phy/phy-mipi-dphy.h +++ b/include/linux/phy/phy-mipi-dphy.h @@ -6,6 +6,19 @@ #ifndef __PHY_MIPI_DPHY_H_ #define __PHY_MIPI_DPHY_H_ +/** + * enum phy_mipi_dphy_submode - MIPI D-PHY sub-mode + * + * A MIPI D-PHY can be used to transmit or receive data. + * Since some controllers can support both, the direction to enable is specified + * with the PHY sub-mode. Transmit is assumed by default with phy_set_mode. + */ + +enum phy_mipi_dphy_submode { + PHY_MIPI_DPHY_SUBMODE_TX = 0, + PHY_MIPI_DPHY_SUBMODE_RX, +}; + /** * struct phy_configure_opts_mipi_dphy - MIPI D-PHY configuration set * -- 2.30.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel