[PATCH 08/10] docs: ABI: sysfs-class-backlight: unify ambient light zone nodes

From: Mauro Carvalho Chehab
Date: Wed May 19 2021 - 04:52:22 EST


./scripts/get_abi.pl is warning about duplicated symbol
definition:

Warning: /sys/class/backlight/<backlight>/l1_daylight_max is defined 2 times: ./Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870:4 ./Documentation/ABI/testing/sysfs-class-backlight-adp8860:12

What happens is that 3 drivers use the same pattern to report
max and dim setting for different ambient light zones.

It should be noticed that the adp8870 doc was missing an
entry for l1_daylight_dim, which was fixed on this patch.

While the ambient light zone is device-specific, the sysfs
definition is actually common. So, unify them at:

Documentation/ABI/testing/sysfs-class-backlight

and use as the contact point, the e-mail reported by
get_maintainers.pl for the subsystem.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
.../ABI/testing/sysfs-class-backlight | 100 ++++++++++++++++++
.../ABI/testing/sysfs-class-backlight-adp5520 | 31 ------
.../ABI/testing/sysfs-class-backlight-adp8860 | 37 -------
.../sysfs-class-backlight-driver-adp8870 | 32 ------
4 files changed, 100 insertions(+), 100 deletions(-)
delete mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp5520
delete mode 100644 Documentation/ABI/testing/sysfs-class-backlight-adp8860
delete mode 100644 Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870

diff --git a/Documentation/ABI/testing/sysfs-class-backlight b/Documentation/ABI/testing/sysfs-class-backlight
index 1fc86401bf95..c453646b06e2 100644
--- a/Documentation/ABI/testing/sysfs-class-backlight
+++ b/Documentation/ABI/testing/sysfs-class-backlight
@@ -84,3 +84,103 @@ Description:
It can be enabled by writing the value stored in
/sys/class/backlight/<backlight>/max_brightness to
/sys/class/backlight/<backlight>/brightness.
+
+What: /sys/class/backlight/<backlight>/<ambient light zone>_max
+Date: Sep, 2009
+KernelVersion: v2.6.32
+Contact: device-drivers-devel@xxxxxxxxxxxxxxxxxxxx
+Description:
+ Control the maximum brightness for <ambient light zone>
+ on this <backlight>. Values are between 0 and 127. This file
+ will also show the brightness level stored for this
+ <ambient light zone>.
+
+ The <ambient light zone> is device-driver specific:
+
+ For ADP5520 and ADP5501, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ daylight /sys/class/backlight/<backlight>/daylight_max
+ office /sys/class/backlight/<backlight>/office_max
+ dark /sys/class/backlight/<backlight>/dark_max
+ =========== ================================================
+
+ For ADP8860, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ l1_daylight /sys/class/backlight/<backlight>/l1_daylight_max
+ l2_office /sys/class/backlight/<backlight>/l2_office_max
+ l3_dark /sys/class/backlight/<backlight>/l3_dark_max
+ =========== ================================================
+
+ For ADP8870, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ l1_daylight /sys/class/backlight/<backlight>/l1_daylight_max
+ l2_bright /sys/class/backlight/<backlight>/l2_bright_max
+ l3_office /sys/class/backlight/<backlight>/l3_office_max
+ l4_indoor /sys/class/backlight/<backlight>/l4_indoor_max
+ l5_dark /sys/class/backlight/<backlight>/l5_dark_max
+ =========== ================================================
+
+ See also: /sys/class/backlight/<backlight>/ambient_light_zone.
+
+What: /sys/class/backlight/<backlight>/<ambient light zone>_dim
+Date: Sep, 2009
+KernelVersion: v2.6.32
+Contact: device-drivers-devel@xxxxxxxxxxxxxxxxxxxx
+Description:
+ Control the dim brightness for <ambient light zone>
+ on this <backlight>. Values are between 0 and 127, typically
+ set to 0. Full off when the backlight is disabled.
+ This file will also show the dim brightness level stored for
+ this <ambient light zone>.
+
+ The <ambient light zone> is device-driver specific:
+
+ For ADP5520 and ADP5501, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ daylight /sys/class/backlight/<backlight>/daylight_dim
+ office /sys/class/backlight/<backlight>/office_dim
+ dark /sys/class/backlight/<backlight>/dark_dim
+ =========== ================================================
+
+ For ADP8860, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ l1_daylight /sys/class/backlight/<backlight>/l1_daylight_dim
+ l2_office /sys/class/backlight/<backlight>/l2_office_dim
+ l3_dark /sys/class/backlight/<backlight>/l3_dark_dim
+ =========== ================================================
+
+ For ADP8870, <ambient light zone> can be:
+
+ =========== ================================================
+ Ambient sysfs entry
+ light zone
+ =========== ================================================
+ l1_daylight /sys/class/backlight/<backlight>/l1_daylight_dim
+ l2_bright /sys/class/backlight/<backlight>/l2_bright_dim
+ l3_office /sys/class/backlight/<backlight>/l3_office_dim
+ l4_indoor /sys/class/backlight/<backlight>/l4_indoor_dim
+ l5_dark /sys/class/backlight/<backlight>/l5_dark_dim
+ =========== ================================================
+
+ See also: /sys/class/backlight/<backlight>/ambient_light_zone.
+
diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp5520 b/Documentation/ABI/testing/sysfs-class-backlight-adp5520
deleted file mode 100644
index 34b6ebafa210..000000000000
--- a/Documentation/ABI/testing/sysfs-class-backlight-adp5520
+++ /dev/null
@@ -1,31 +0,0 @@
-sysfs interface for analog devices adp5520(01) backlight driver
----------------------------------------------------------------
-
-The backlight brightness control operates at three different levels for the
-adp5520 and adp5501 devices: daylight (level 1), office (level 2) and dark
-(level 3). By default the brightness operates at the daylight brightness level.
-
-What: /sys/class/backlight/<backlight>/daylight_max
-What: /sys/class/backlight/<backlight>/office_max
-What: /sys/class/backlight/<backlight>/dark_max
-Date: Sep, 2009
-KernelVersion: v2.6.32
-Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
-Description:
- (RW) Maximum current setting for the backlight when brightness
- is at one of the three levels (daylight, office or dark). This
- is an input code between 0 and 127, which is transformed to a
- value between 0 mA and 30 mA using linear or non-linear
- algorithms.
-
-What: /sys/class/backlight/<backlight>/daylight_dim
-What: /sys/class/backlight/<backlight>/office_dim
-What: /sys/class/backlight/<backlight>/dark_dim
-Date: Sep, 2009
-KernelVersion: v2.6.32
-Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
-Description:
- (RW) Dim current setting for the backlight when brightness is at
- one of the three levels (daylight, office or dark). This is an
- input code between 0 and 127, which is transformed to a value
- between 0 mA and 30 mA using linear or non-linear algorithms.
diff --git a/Documentation/ABI/testing/sysfs-class-backlight-adp8860 b/Documentation/ABI/testing/sysfs-class-backlight-adp8860
deleted file mode 100644
index 6610ac73f9ba..000000000000
--- a/Documentation/ABI/testing/sysfs-class-backlight-adp8860
+++ /dev/null
@@ -1,37 +0,0 @@
-sysfs interface for analog devices adp8860 backlight driver
------------------------------------------------------------
-
-The backlight brightness control operates at three different levels for the
-adp8860, adp8861 and adp8863 devices: daylight (level 1), office (level 2) and
-dark (level 3). By default the brightness operates at the daylight brightness
-level.
-
-See also /sys/class/backlight/<backlight>/ambient_light_level and
-/sys/class/backlight/<backlight>/ambient_light_zone.
-
-
-What: /sys/class/backlight/<backlight>/l1_daylight_max
-What: /sys/class/backlight/<backlight>/l2_office_max
-What: /sys/class/backlight/<backlight>/l3_dark_max
-Date: Apr, 2010
-KernelVersion: v2.6.35
-Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
-Description:
- (RW) Maximum current setting for the backlight when brightness
- is at one of the three levels (daylight, office or dark). This
- is an input code between 0 and 127, which is transformed to a
- value between 0 mA and 30 mA using linear or non-linear
- algorithms.
-
-
-What: /sys/class/backlight/<backlight>/l1_daylight_dim
-What: /sys/class/backlight/<backlight>/l2_office_dim
-What: /sys/class/backlight/<backlight>/l3_dark_dim
-Date: Apr, 2010
-KernelVersion: v2.6.35
-Contact: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
-Description:
- (RW) Dim current setting for the backlight when brightness is at
- one of the three levels (daylight, office or dark). This is an
- input code between 0 and 127, which is transformed to a value
- between 0 mA and 30 mA using linear or non-linear algorithms.
diff --git a/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870 b/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870
deleted file mode 100644
index b08ca912cad4..000000000000
--- a/Documentation/ABI/testing/sysfs-class-backlight-driver-adp8870
+++ /dev/null
@@ -1,32 +0,0 @@
-See also /sys/class/backlight/<backlight>/ambient_light_level and
-/sys/class/backlight/<backlight>/ambient_light_zone.
-
-What: /sys/class/backlight/<backlight>/<ambient light zone>_max
-What: /sys/class/backlight/<backlight>/l1_daylight_max
-What: /sys/class/backlight/<backlight>/l2_bright_max
-What: /sys/class/backlight/<backlight>/l3_office_max
-What: /sys/class/backlight/<backlight>/l4_indoor_max
-What: /sys/class/backlight/<backlight>/l5_dark_max
-Date: May 2011
-KernelVersion: 3.0
-Contact: device-drivers-devel@xxxxxxxxxxxxxxxxxxxx
-Description:
- Control the maximum brightness for <ambient light zone>
- on this <backlight>. Values are between 0 and 127. This file
- will also show the brightness level stored for this
- <ambient light zone>.
-
-What: /sys/class/backlight/<backlight>/<ambient light zone>_dim
-What: /sys/class/backlight/<backlight>/l2_bright_dim
-What: /sys/class/backlight/<backlight>/l3_office_dim
-What: /sys/class/backlight/<backlight>/l4_indoor_dim
-What: /sys/class/backlight/<backlight>/l5_dark_dim
-Date: May 2011
-KernelVersion: 3.0
-Contact: device-drivers-devel@xxxxxxxxxxxxxxxxxxxx
-Description:
- Control the dim brightness for <ambient light zone>
- on this <backlight>. Values are between 0 and 127, typically
- set to 0. Full off when the backlight is disabled.
- This file will also show the dim brightness level stored for
- this <ambient light zone>.
--
2.31.1