Patch "iio: adc: cc10001: Add delay before setting START bit" has been added to the 4.0-stable tree
Subsystems (2)
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 <[email protected]> know about it.
Quoted 1 line
From
f29b212edb9e253cafcb4a2ab7842a890989f1a5Mon Sep 17 00:00:00 2001
From: Naidu Tellapati <[email protected]>
Date: Thu, 7 May 2015 18:22:20 -0300
Subject: iio: adc: cc10001: Add delay before setting START bit
From: Naidu Tellapati <[email protected]>
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.
--- drivers/iio/adc/cc10001_adc.c | 1 + 1 file changed, 1 insertion(+)
drivers/iio/adc/cc10001_adc.c +1 -0
@@ -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 [email protected] 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