From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750985Ab3KFFRh (ORCPT ); Wed, 6 Nov 2013 00:17:37 -0500 Received: from mail-pd0-f172.google.com ([209.85.192.172]:49931 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750755Ab3KFFRf (ORCPT ); Wed, 6 Nov 2013 00:17:35 -0500 From: Tim Harvey To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Liam Girdwood , Mark Brown Subject: [PATCH 1/2] regulator: pfuze100: allow misprogrammed ID Date: Tue, 5 Nov 2013 21:17:25 -0800 Message-Id: <1383715045-15341-1-git-send-email-tharvey@gateworks.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org prior to week 08 of 2013 Freescale misprogrammed between 1 and 3% of PFUZE1000 parts with a ID=0x8 instead of the expected ID=0x0 Signed-off-by: Tim Harvey --- drivers/regulator/pfuze100-regulator.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c index ba67b2c..032df37 100644 --- a/drivers/regulator/pfuze100-regulator.c +++ b/drivers/regulator/pfuze100-regulator.c @@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip) if (ret) return ret; - if (value & 0x0f) { - dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); - return -ENODEV; + switch (value & 0x0f) { + /* Freescale misprogrammed 1-3% of parts prior to week 8 of 2013 as ID=8 */ + case 0x8: + dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8"); + case 0x0: + break; + default: + dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value); + return -ENODEV; } ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value); -- 1.7.9.5