From patchwork Tue Jun 14 15:07:25 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 635358 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3rTY1C57L5z9t12 for ; Wed, 15 Jun 2016 01:07:59 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b=bz4g/lz4; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751326AbcFNPH7 (ORCPT ); Tue, 14 Jun 2016 11:07:59 -0400 Received: from mail-lf0-f51.google.com ([209.85.215.51]:34901 "EHLO mail-lf0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750968AbcFNPH6 (ORCPT ); Tue, 14 Jun 2016 11:07:58 -0400 Received: by mail-lf0-f51.google.com with SMTP id u74so106495180lff.2 for ; Tue, 14 Jun 2016 08:07:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=STd+8uY9B3Aw5oeclXH1Sh8v8+WiZY1pVNfixcVRNE0=; b=bz4g/lz48e3JEjDTce65LqLgTd417L0q2evWkv4sxb/CyIPFjMmEmJkx0u/ENPJfB0 /T+l04T6WFbZFuWd4s3W4aYpY566MlXC+JvRLpG6DUCffe208G7ZfzqB0vm+kI9y6Nqm rQYWU/JKhJ6tayPIsgjKEVNe855M9w/cHjoiE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=STd+8uY9B3Aw5oeclXH1Sh8v8+WiZY1pVNfixcVRNE0=; b=d19DYKS+3gm5ZsDcNGtrj5Agiff9YEDaxD7my6+nTWxDshz8t1uQAfc8h4y7o1t9AR H+dr2dC6ccwo0JCqKdJ3pfE5peTEJL+hNDAe5dtVtPpslpGsuDLn8IHDXghyyDHVYFBP inmB/F3bFeJt9MZWo6B8AM7GdyF4OcJBEclbOlgfLfeBOAzHZBZBVuVpADZOffnT0OWX pAdousG6loO+B1DKN9AMpuTnJMh+QwmrD+/N/k7qR/EFmqWh/iAZdkoTucYT3sr7Xn7m szpUO601xNbflhytm9OkNMnVdv+bxDeBrUNV0OUOMnTgb30Zkxr/CJU1n8dV2+TRJBlO Tq7Q== X-Gm-Message-State: ALyK8tJ+17KFA2DUsVknsAjJMdYcglnxD0uYcA2wxVK8iWdPHt6G9cvayOVhwO27CZDySzI3 X-Received: by 10.25.28.21 with SMTP id c21mr1658152lfc.68.1465916875408; Tue, 14 Jun 2016 08:07:55 -0700 (PDT) Received: from localhost.localdomain (h-155-4-128-67.na.cust.bahnhof.se. [155.4.128.67]) by smtp.gmail.com with ESMTPSA id f195sm3477060lfb.47.2016.06.14.08.07.53 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 14 Jun 2016 08:07:54 -0700 (PDT) From: Ulf Hansson To: Wolfram Sang , linux-i2c@vger.kernel.org Cc: Jarkko Nikula , Andy Shevchenko , Mika Westerberg , John Stultz , Guodong Xu , linux-arm-kernel@lists.infradead.org, Ulf Hansson Subject: [PATCH 07/10] i2c: designware-platdrv: Re-init the HW when resuming Date: Tue, 14 Jun 2016 17:07:25 +0200 Message-Id: <1465916848-8207-8-git-send-email-ulf.hansson@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1465916848-8207-1-git-send-email-ulf.hansson@linaro.org> References: <1465916848-8207-1-git-send-email-ulf.hansson@linaro.org> Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org In cases when the designware specific flag "pm_runtime_disable" is set, the HW becomes disabled during system PM suspend. Let's make sure it becomes operational when resuming by re-initialize it again. Signed-off-by: Ulf Hansson --- drivers/i2c/busses/i2c-designware-platdrv.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 106856f..95a9f4e 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -337,9 +337,7 @@ static int dw_i2c_plat_resume(struct device *dev) struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev); i2c_dw_plat_prepare_clk(i_dev, true); - - if (!i_dev->pm_runtime_disabled) - i2c_dw_init(i_dev); + i2c_dw_init(i_dev); return 0; }