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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, 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 3394BC43381 for ; Wed, 20 Feb 2019 18:19:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 16CBF20838 for ; Wed, 20 Feb 2019 18:19:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726819AbfBTSTy (ORCPT ); Wed, 20 Feb 2019 13:19:54 -0500 Received: from anholt.net ([50.246.234.109]:51112 "EHLO anholt.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726120AbfBTSTy (ORCPT ); Wed, 20 Feb 2019 13:19:54 -0500 Received: from localhost (localhost [127.0.0.1]) by anholt.net (Postfix) with ESMTP id 9C9DD10A2D1E; Wed, 20 Feb 2019 10:19:53 -0800 (PST) X-Virus-Scanned: Debian amavisd-new at anholt.net Received: from anholt.net ([127.0.0.1]) by localhost (kingsolver.anholt.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id PO7RdZZsgT9d; Wed, 20 Feb 2019 10:19:51 -0800 (PST) Received: from eliezer.anholt.net (localhost [127.0.0.1]) by anholt.net (Postfix) with ESMTP id DAB2610A2D1A; Wed, 20 Feb 2019 10:19:51 -0800 (PST) Received: by eliezer.anholt.net (Postfix, from userid 1000) id 610AD2FE464C; Wed, 20 Feb 2019 10:19:51 -0800 (PST) From: Eric Anholt To: Florian Fainelli Cc: linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Stefan Wahren , bcm-kernel-feedback-list@broadcom.com, Eric Anholt Subject: [PATCH v2 1/2] soc: bcm: bcm2835-pm: Fix PM_IMAGE_PERI power domain support. Date: Wed, 20 Feb 2019 10:19:50 -0800 Message-Id: <20190220181951.12670-1-eric@anholt.net> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We don't have ASB master/slave regs for this domain, so just skip that step. Signed-off-by: Eric Anholt Fixes: 670c672608a1 ("soc: bcm: bcm2835-pm: Add support for power domains under a new binding.") --- drivers/soc/bcm/bcm2835-power.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/soc/bcm/bcm2835-power.c b/drivers/soc/bcm/bcm2835-power.c index 48412957ec7a..4a1b99b773c0 100644 --- a/drivers/soc/bcm/bcm2835-power.c +++ b/drivers/soc/bcm/bcm2835-power.c @@ -150,7 +150,12 @@ struct bcm2835_power { static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg) { - u64 start = ktime_get_ns(); + u64 start; + + if (!reg) + return 0; + + start = ktime_get_ns(); /* Enable the module's async AXI bridges. */ ASB_WRITE(reg, ASB_READ(reg) & ~ASB_REQ_STOP); @@ -165,7 +170,12 @@ static int bcm2835_asb_enable(struct bcm2835_power *power, u32 reg) static int bcm2835_asb_disable(struct bcm2835_power *power, u32 reg) { - u64 start = ktime_get_ns(); + u64 start; + + if (!reg) + return 0; + + start = ktime_get_ns(); /* Enable the module's async AXI bridges. */ ASB_WRITE(reg, ASB_READ(reg) | ASB_REQ_STOP); -- 2.20.1