linux-kernel - [PATCH v2 0/3] iio: adc: sama5d2

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Message-ID: <1493900000-26220-1-git-send-email-eugen.hristev@microchip.com>
Date:   Thu, 4 May 2017 15:13:17 +0300
From:   Eugen Hristev <eugen.hristev@...rochip.com>
To:     <nicolas.ferre@...rochip.com>, <jic23@...nel.org>,
        <alexandre.belloni@...e-electrons.com>,
        <linux-iio@...r.kernel.org>, <lars@...afoo.de>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <ludovic.desroches@...rochip.com>, <eugen.hristev@...rochip.com>
Subject: [PATCH v2 0/3] iio: adc: sama5d2_adc hw triggers and buffers

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