linux-kernel - [PATCH 0/4] ad7124 fixes and improvements

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Message-Id: <20240731-ad7124-fix-v1-0-46a76aa4b9be@analog.com>
Date: Wed, 31 Jul 2024 15:37:21 +0300
From: Dumitru Ceclan <mitrutzceclan@...il.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Stefan Popa <stefan.popa@...log.com>, 
 Alexandru Tachici <alexandru.tachici@...log.com>
Cc: Dumitru Ceclan <mitrutzceclan@...il.com>, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, linux-iio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Dumitru Ceclan <dumitru.ceclan@...log.com>
Subject: [PATCH 0/4] ad7124 fixes and improvements

This patch series adds fixes and improvements in the ad7124 driver.

Fixes:
- properly compare config values
- add a delay after reset to allow chip initialization

Improvements:
- reduce the number of SPI transfers
- ensure that after probe the ADC is in idle mode
  and not continuos conversion mode

Another thing that could be considered is improving the config pop
behavior as kfifo_get() will return the least recently added config
instead of the least recently *used* one.

This could be an issue when multiple channels are using the same "old"
config and the LRU considers that one as the least recently used.

If this is considered a valid issue, I can add another patch for it.

Signed-off-by: Dumitru Ceclan <dumitru.ceclan@...log.com>
---
Dumitru Ceclan (4):
      iio: adc: ad7124: fix chip ID mismatch
      iio: adc: ad7124: fix config comparison
      iio: adc: ad7124: reduce the number of SPI transfers
      iio: adc: ad7124: set initial ADC mode to idle

 drivers/iio/adc/ad7124.c | 61 ++++++++++++++++++++++++------------------------
 1 file changed, 31 insertions(+), 30 deletions(-)
---
base-commit: 380afccc2a55e8015adae4266e8beff96ab620be
change-id: 20240731-ad7124-fix-37aec7fe0b6b

Best regards,
-- 
Dumitru Ceclan <dumitru.ceclan@...log.com>