linux-kernel - [PATCH 0/2] make generic-adc-thermal less noisy

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Message-Id: <20200107232044.889075-1-martin.blumenstingl@googlemail.com>
Date:   Wed,  8 Jan 2020 00:20:42 +0100
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     rui.zhang@...el.com, daniel.lezcano@...aro.org,
        amit.kucheria@...durent.com, linux-pm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        jeff.dagenais@...il.com, edubezval@...il.com,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH 0/2] make generic-adc-thermal less noisy

I want to use generic-adc-thermal on the 32-bit Amlogic SoCs in the
future. These have a thermal sensors which can be read through the
SAR ADC (for which we have an IIO driver) on those SoCs.

While testing I found the generic-adc-thermal driver to be a bit
noisy when operating in well supported environment:
- the SoC temperature sensor on the 32-bit Amlogic SoCs is typically
  loaded late because of it's dependencies (it needs data from the
  eFuse and a syscon to calibrate). Yet I still got a message stating
  there's no lookup table for the generic-adc-thermal defined (which
  is expected and perfectly valid on these Amlogic SoCs, as the IIO
  channel returns the temperature).
- the IIO channel is correctly defined with type IIO_TEMP, yet the
  generic-adc-thermal driver still prints a message which first lead
  me to believe that I passed an incorrect IIO channel (one that
  returns a voltage).


Martin Blumenstingl (2):
  thermal: generic-adc: silence "no lookup table" on deferred probe
  thermal: generic-adc: silence info message for IIO_TEMP channels

 drivers/thermal/thermal-generic-adc.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

-- 
2.24.1