From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755380AbbFQXlV (ORCPT ); Wed, 17 Jun 2015 19:41:21 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:34684 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932547AbbFQWZH (ORCPT ); Wed, 17 Jun 2015 18:25:07 -0400 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Thomas Betker , Jonathan Cameron , Kamal Mostafa Subject: [PATCH 3.19.y-ckt 022/146] iio: adc: xilinx: Fix VREFP scale Date: Wed, 17 Jun 2015 15:22:07 -0700 Message-Id: <1434579851-1719-23-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434579851-1719-1-git-send-email-kamal@canonical.com> References: <1434579851-1719-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.19.8-ckt2 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Betker commit 00db4e52f4541965f7fda225eb458a75f892017b upstream. The scaling factor for VREFP is 3.0/4096, not 1.0/4096; fix this to get correct readings. Signed-off-by: Thomas Betker Signed-off-by: Jonathan Cameron Signed-off-by: Kamal Mostafa --- drivers/iio/adc/xilinx-xadc-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c index 0ad7b50..6fa629b 100644 --- a/drivers/iio/adc/xilinx-xadc-core.c +++ b/drivers/iio/adc/xilinx-xadc-core.c @@ -856,6 +856,7 @@ static int xadc_read_raw(struct iio_dev *indio_dev, switch (chan->address) { case XADC_REG_VCCINT: case XADC_REG_VCCAUX: + case XADC_REG_VREFP: case XADC_REG_VCCBRAM: case XADC_REG_VCCPINT: case XADC_REG_VCCPAUX: -- 1.9.1