Linux 6.3 gpio-pwm fails to compile

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#5,472 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
c, linux, raspberry-pi
Domain
embedded-iot, operating-systems

Research direction

Start in drivers/gpio/gpio-pwm.c, in pwm_gpio_probe around line 104, and reproduce the Linux 6.3 build with gpio-pwm enabled. Inspect the gpio_chip API change involving of_node and fwnode, then verify that the Raspberry Pi kernel compiles successfully with this driver enabled.

Written by the indexing model from the issue text.

Description

Describe the bug

drivers/gpio/gpio-pwm.c: In function 'pwm_gpio_probe':
drivers/gpio/gpio-pwm.c:104:22: error: 'struct gpio_chip' has no member named 'of_node'; did you mean 'fwnode'?

I've just been commenting out the line. Not sure that's the correct solution, but it is the only line of code that attempts to use gpio_chip.of_node.

Steps to reproduce the behaviour

Attempt to compile 6.3 tree with gpio-pwm enabled.

Device (s)

Raspberry Pi 4 Mod. B

System

uname aarch64
firmware is latest
distro is Xilka

Logs

No response

Additional context

No response

Dominant language
C
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Merged PRs (30d)
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