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Bug#1148486: linux: [loong64] please enable CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules

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  Bug#1148486: linux: [loong64] please enable CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules Dominique Belhachemi <domibel@debian.org> - 2026-09-20 02:10 +0200
    Bug#1148486: marked as done (linux: [loong64] please enable  CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-10-09 12:20 +0200

#94148 — Bug#1148486: linux: [loong64] please enable CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules

Source: linux
Severity: wishlist
X-Debbugs-Cc: debian-loongarch@lists.debian.org
User: debian-loongarch@lists.debian.org
Usertags: loong64

Dear maintainer,

Please enable the Loongson I2C and PWM controller drivers on loong64.

  CONFIG_I2C_LS2X=m
  CONFIG_PWM_LOONGSON=m

Without them, the kernel shows no I2C buses and no PWM devices on
Loongson-3A6000 / 7A2000 systems.
With them I can read the board temperature and see the fan control signals.

$ sensors
nvme-pci-0500
Adapter: PCI adapter
Composite:    +40.9°C  (low  =  -0.1°C, high = +99.8°C)
                       (crit = +109.8°C)

lm75-virtual-0
Adapter: Virtual device
temp1:        +35.5°C  (high = +80.0°C, hyst = +75.0°C)



$ sudo cat /sys/kernel/debug/pwm
0: platform/LOON0006:00, npwm: 1
 pwm-0   ((null)              ):
  requested configuration: disabled, 0/0 ns, normal polarity
  actual configuration:     enabled, 24000/40000 ns, normal polarity

1: platform/LOON0006:01, npwm: 1
 pwm-0   ((null)              ):
  requested configuration: disabled, 0/0 ns, normal polarity
  actual configuration:    disabled, 5572300/11249220 ns, normal polarity

2: platform/LOON0006:02, npwm: 1
 pwm-0   ((null)              ):
  requested configuration: disabled, 0/0 ns, normal polarity
  actual configuration:     enabled, 24000/40000 ns, normal polarity

3: platform/LOON0006:03, npwm: 1
 pwm-0   ((null)              ):
  requested configuration: disabled, 0/0 ns, normal polarity
  actual configuration:    disabled, 3611460/0 ns, normal polarity


Best
-Dominique

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#94410 — Bug#1148486: marked as done (linux: [loong64] please enable CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules)

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Your message dated Fri, 09 Oct 2026 10:14:18 +0000
with message-id <E1xF7cI-0000000G2SR-1jG8@fasolo.debian.org>
and subject line Bug#1148486: fixed in linux 7.3~rc6-1~exp1
has caused the Debian Bug report #1148486,
regarding linux: [loong64] please enable CONFIG_I2C_LS2X and CONFIG_PWM_LOONGSON as modules
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1148486: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1148486
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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