From: Eugen Hristev <eugen.hristev@microchip.com>
To: <nicolas.ferre@microchip.com>, <jic23@kernel.org>,
<alexandre.belloni@free-electrons.com>,
<linux-iio@vger.kernel.org>, <lars@metafoo.de>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <ludovic.desroches@microchip.com>, <eugen.hristev@microchip.com>
Subject: [PATCH v2 0/3] iio: adc: sama5d2_adc hw triggers and buffers
Date: Thu, 4 May 2017 15:13:17 +0300 [thread overview]
Message-ID: <1493900000-26220-1-git-send-email-eugen.hristev@microchip.com> (raw)
This patch implements the hardware triggers support and buffer management
for sama5d2.
The DT modifications ( [PATCH 1/3] ARM: dts: at91: sama5d2_xplained:
enable ADTRG pin) are for demonstration purposes of the feature,
setting the pinctrl for the ADC hw trigger pin,should go through
at91 maintainers.
I also increased the buffer size for the trigger name in the
generic_buffer application to cope with longer names and avoid
stack smashing problem.
This is in patch [PATCH 3/3] iio: tools: generic_buffer: increase trigger length
Changes in v2:
- Moved buffer allocation and freeing into the preenable and postdisable
callbacks.
We have a total of scan bytes that can vary a lot depending on each channel
enabled at a certain point.
- made the at91 trigger list part of state structure
- made the iio trigger list preallocated in state structure
- moved irq enabling/disabling into the try_reenable callback
- on trigger disable must write disable registries as well
- Modified trigger name length to 64
Eugen Hristev (3):
ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
iio: adc: at91-sama5d2_adc: add hw trigger and buffer support
iio: tools: generic_buffer: increase trigger length
arch/arm/boot/dts/at91-sama5d2_xplained.dts | 16 +-
drivers/iio/adc/at91-sama5d2_adc.c | 231 +++++++++++++++++++++++++++-
tools/iio/iio_utils.h | 2 +-
3 files changed, 244 insertions(+), 5 deletions(-)
--
2.7.4
next reply other threads:[~2017-05-04 12:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-04 12:13 Eugen Hristev [this message]
2017-05-04 12:13 ` [PATCH v2 1/3] ARM: dts: at91: sama5d2_xplained: enable ADTRG pin Eugen Hristev
2017-05-04 12:13 ` [PATCH v2 2/3] iio: adc: at91-sama5d2_adc: add hw trigger and buffer support Eugen Hristev
2017-05-07 15:01 ` Jonathan Cameron
2017-05-10 8:49 ` Eugen Hristev
2017-05-11 6:09 ` Ludovic Desroches
2017-05-14 15:12 ` Jonathan Cameron
2017-05-15 7:38 ` Eugen Hristev
2017-05-16 18:03 ` Jonathan Cameron
2017-05-17 7:47 ` Peter Rosin
2017-05-17 11:35 ` Eugen Hristev
2017-05-21 11:58 ` Jonathan Cameron
2017-05-04 12:13 ` [PATCH v2 3/3] iio: tools: generic_buffer: increase trigger length Eugen Hristev
2017-05-07 15:03 ` Jonathan Cameron
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