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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, 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 15B9AC4361B for ; Wed, 16 Dec 2020 18:23:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D66C725E16 for ; Wed, 16 Dec 2020 18:23:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730291AbgLPSXQ (ORCPT ); Wed, 16 Dec 2020 13:23:16 -0500 Received: from honk.sigxcpu.org ([24.134.29.49]:45126 "EHLO honk.sigxcpu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727781AbgLPSXQ (ORCPT ); Wed, 16 Dec 2020 13:23:16 -0500 Received: from localhost (localhost [127.0.0.1]) by honk.sigxcpu.org (Postfix) with ESMTP id 25845FB04; Wed, 16 Dec 2020 19:22:34 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at honk.sigxcpu.org Received: from honk.sigxcpu.org ([127.0.0.1]) by localhost (honk.sigxcpu.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lot8rLTxDS_T; Wed, 16 Dec 2020 19:22:33 +0100 (CET) Received: by bogon.sigxcpu.org (Postfix, from userid 1000) id B35B043FDC; Wed, 16 Dec 2020 19:22:32 +0100 (CET) From: =?UTF-8?q?Guido=20G=C3=BCnther?= To: Kishon Vijay Abraham I , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Robert Chiras , Sam Ravnborg , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 0/1] phy: fsl-imx8-mipi-dphy: Hook into runtime pm Date: Wed, 16 Dec 2020 19:22:32 +0100 Message-Id: X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This allows us to shut down the mipi power domain on the imx8. The alternative would be to drop the dphy from the mipi power domain in the SOCs device tree and only have the DSI host controller visible there but since the PD is mostly about the PHY that would defeat it's purpose. This is basically a resend from February 2020 which went without feedback. This allows to shut off the power domain hen blanking the LCD panel: pm_genpd_summary before: domain status slaves /device runtime status ---------------------------------------------------------------------- mipi on /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy unsupported /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi suspended after: mipi off-0 /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy suspended /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi suspended Changes from v1: - Tweak commit message slightly Changes from v2: - As pre review comment by Lucas Stach https://lore.kernel.org/linux-arm-kernel/ee22b072e0abe07559a3e6a63ccf6ece064a46cb.camel@pengutronix.de/ Check for pm_runtime_get_sync failure Guido Günther (1): phy: fsl-imx8-mipi-dphy: Hook into runtime pm .../phy/freescale/phy-fsl-imx8-mipi-dphy.c | 25 ++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) -- 2.29.2