[bug#50565] [PATCH] services: tlp: Added config variables for battery charging.

[Attila Lendvai]

* gnu/services/pm.scm (tlp-configuration): Added start-charge-thresh-bat0,
stop-charge-thresh-bat0, start-charge-thresh-bat1, stop-charge-thresh-bat1.
* doc/guix.texi (Power Management Services): Document them.
---
 doc/guix.texi       | 28 ++++++++++++++++++++++++++++
 gnu/services/pm.scm | 16 ++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/doc/guix.texi b/doc/guix.texi
index b15a45a977..3056157bfe 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -28464,6 +28464,34 @@ Defaults to @samp{"powersave"}.
 
 @end deftypevr
 
+@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer 
start-charge-thresh-bat0
+Percentage when battery 0 should begin charging. Only supported on some 
laptops.
+
+Defaults to @samp{disabled}.
+
+@end deftypevr
+
+@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer 
stop-charge-thresh-bat0
+Percentage when battery 0 should stop charging. Only supported on some laptops.
+
+Defaults to @samp{disabled}.
+
+@end deftypevr
+
+@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer 
start-charge-thresh-bat1
+Percentage when battery 1 should begin charging. Only supported on some 
laptops.
+
+Defaults to @samp{disabled}.
+
+@end deftypevr
+
+@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer 
stop-charge-thresh-bat1
+Percentage when battery 1 should stop charging. Only supported on some laptops.
+
+Defaults to @samp{disabled}.
+
+@end deftypevr
+
 @deftypevr {@code{tlp-configuration} parameter} string 
radeon-power-profile-on-ac
 Radeon graphics clock speed level.  Alternatives are low, mid, high,
 auto, default.
diff --git a/gnu/services/pm.scm b/gnu/services/pm.scm
index 256c6a7fa7..bf3d8004c7 100644
--- a/gnu/services/pm.scm
+++ b/gnu/services/pm.scm
@@ -253,6 +253,22 @@ default, performance, powersave.")
    (string "powersave")
    "Same as @code{pcie-aspm-ac} but on BAT mode.")
 
+  (start-charge-thresh-bat0
+   (maybe-non-negative-integer 'disabled)
+   "Percentage when battery 0 should begin charging.")
+
+  (stop-charge-thresh-bat0
+   (maybe-non-negative-integer 'disabled)
+   "Percentage when battery 0 should stop charging.")
+
+  (start-charge-thresh-bat1
+   (maybe-non-negative-integer 'disabled)
+   "Percentage when battery 1 should begin charging.")
+
+  (stop-charge-thresh-bat1
+   (maybe-non-negative-integer 'disabled)
+   "Percentage when battery 1 should stop charging.")
+
   (radeon-power-profile-on-ac
    (string "high")
    "Radeon graphics clock speed level.  Alternatives are
-- 
2.33.0