linux-kernel - [PATCH] iio: ABI: remove duplicate in_resistance

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Message-Id: <20240820-iio-abi-remove-dup-in_resistance_calibbias-v1-1-e64e58cabb14@baylibre.com>
Date: Tue, 20 Aug 2024 10:18:24 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>, Andreas Klinger <ak@...klinger.de>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Stephen Rothwell <sfr@...b.auug.org.au>, 
 David Lechner <dlechner@...libre.com>
Subject: [PATCH] iio: ABI: remove duplicate in_resistance_calibbias

In commit 0f718e10da81 ("iio: ABI: add missing calibbias attributes"),
the in_resistance_calibbias attribute was added to the main IIO ABI
documentation. This attribute is was already documented in
sysfs-bus-iio-chemical-sgp40. This resulted in a duplicate entry that is
causing documentation build warnings.

This removes the attribute from the sgp40 documentation in favor of the
main IIO ABI documentation since this attribute fits the established
pattern of standard IIO attributes.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20240820134739.50c771cb@canb.auug.org.au/
Signed-off-by: David Lechner <dlechner@...libre.com>
---
 Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40 | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40 b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
index 469a7c00fad4..a95547e874f1 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
+++ b/Documentation/ABI/testing/sysfs-bus-iio-chemical-sgp40
@@ -15,17 +15,3 @@ Description:
 		Set the relative humidity. This value is sent to the sensor for
 		humidity compensation.
 		Default value: 50000 (50 % relative humidity)
-
-What:		/sys/bus/iio/devices/iio:deviceX/in_resistance_calibbias
-Date:		August 2021
-KernelVersion:	5.15
-Contact:	Andreas Klinger <ak@...klinger.de>
-Description:
-		Set the bias value for the resistance which is used for
-		calculation of in_concentration_input as follows:
-
-		x = (in_resistance_raw - in_resistance_calibbias) * 0.65
-
-		in_concentration_input = 500 / (1 + e^x)
-
-		Default value: 30000

---
base-commit: 0f718e10da81446df0909c9939dff2b77e3b4e95
change-id: 20240820-iio-abi-remove-dup-in_resistance_calibbias-fca009ac928c

Best regards,
-- 
David Lechner <dlechner@...libre.com>