From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753489AbcC2Xiu (ORCPT ); Tue, 29 Mar 2016 19:38:50 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:53606 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064AbcC2Xit (ORCPT ); Tue, 29 Mar 2016 19:38:49 -0400 From: Mark Brown To: Geert Uytterhoeven , Liam Girdwood Cc: linux-kernel@vger.kernel.org, Mark Brown Date: Tue, 29 Mar 2016 16:38:39 -0700 Message-Id: <1459294719-20531-1-git-send-email-broonie@kernel.org> X-Mailer: git-send-email 2.8.0.rc3 X-SA-Exim-Connect-IP: 64.55.107.4 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: [PATCH] regulator: core: Log when we bring constraints into range X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This aids in debugging problems triggered by the regulator core applying its constraints, we could potentially crash immediately after updating the voltage if the constraints are buggy. Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 881c37e61f75..18dd7ee61455 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -935,6 +935,8 @@ static int machine_constraints_voltage(struct regulator_dev *rdev, } if (target_min != current_uV || target_max != current_uV) { + rdev_info(rdev, "Bringing %duV into %d-%duV\n", + current_uV, target_min, target_max); ret = _regulator_do_set_voltage( rdev, target_min, target_max); if (ret < 0) { -- 2.8.0.rc3