From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48768 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752445AbbFCBPu (ORCPT ); Tue, 2 Jun 2015 21:15:50 -0400 Subject: Patch "iio: adc: cc10001: Add delay before setting START bit" has been added to the 4.0-stable tree To: naidu.tellapati@imgtec.com, ezequiel.garcia@imgtec.com, gregkh@linuxfoundation.org, jic23@kernel.org Cc: , From: Date: Wed, 03 Jun 2015 10:15:03 +0900 Message-ID: <143329410313210@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled iio: adc: cc10001: Add delay before setting START bit to the 4.0-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-adc-cc10001-add-delay-before-setting-start-bit.patch and it can be found in the queue-4.0 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From f29b212edb9e253cafcb4a2ab7842a890989f1a5 Mon Sep 17 00:00:00 2001 From: Naidu Tellapati Date: Thu, 7 May 2015 18:22:20 -0300 Subject: iio: adc: cc10001: Add delay before setting START bit From: Naidu Tellapati commit f29b212edb9e253cafcb4a2ab7842a890989f1a5 upstream. According to hardware team there should be some delay after setting channel number, start mode and before setting START. Add a one microsecond delay for this purpose. Fixes: 1664f6a5b0c8 ("iio: adc: Cosmic Circuits 10001 ADC driver") Signed-off-by: Naidu Tellapati Signed-off-by: Ezequiel Garcia Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/cc10001_adc.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/iio/adc/cc10001_adc.c +++ b/drivers/iio/adc/cc10001_adc.c @@ -100,6 +100,7 @@ static void cc10001_adc_start(struct cc1 val = (channel & CC10001_ADC_CH_MASK) | CC10001_ADC_MODE_SINGLE_CONV; cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); + udelay(1); val = cc10001_adc_read_reg(adc_dev, CC10001_ADC_CONFIG); val = val | CC10001_ADC_START_CONV; cc10001_adc_write_reg(adc_dev, CC10001_ADC_CONFIG, val); Patches currently in stable-queue which might be from naidu.tellapati@imgtec.com are queue-4.0/iio-adc-cc10001-fix-the-channel-number-mapping.patch queue-4.0/iio-adc-cc10001-fix-regulator_get_voltage-return-value-check.patch queue-4.0/iio-adc-cc10001-add-delay-before-setting-start-bit.patch queue-4.0/iio-adc-cc10001-fix-incorrect-use-of-power-up-power-down-register.patch