(kernel-rolling) arch: Add LoongArch LS2K500 Framebuffer and IPMI/BMC support

[MingcongBai]

Picked and rebased from #143. This is a split pull request to separate commits for cpufreq and ls2k500 (IPMI, BMC, and Framebuffer).

Builds tested

• amd64
• arm64
• loong64

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign tsic404 for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• https:/raw.githubusercontent.com/deepin-community/template-repository/master/debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[deepin-ci-robot]

Hi @MingcongBai. Thanks for your PR.

I'm waiting for a deepin-community member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[deepin-ci-robot]

deepin pr auto review

Fix red warning about missing include

Signed-off-by: Alvaro Saurin [email protected]

[MingcongBai]

Fails to build on loong64:

drivers/video/fbdev/ls2k500sfb.c:256:13: error: no previous prototype for 'ls2k500sfb_interrupt' [-Werror=missing-prototypes]
  256 | irqreturn_t ls2k500sfb_interrupt(int irq, void *arg)
      |             ^~~~~~~~~~~~~~~~~~~~                                                                  
drivers/video/fbdev/ls2k500sfb.c: In function 'get_gpio_irq_from_acpi_table':
drivers/video/fbdev/ls2k500sfb.c:291:23: error: 'chip' is used uninitialized [-Werror=uninitialized]
  291 |         chip->gpiodev = gpio_device_find_by_label("LOON0007:00");
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/ls2k500sfb.c:288:27: note: 'chip' was declared here
  288 |         struct gpio_chip *chip;
      |                           ^~~~
cc1: all warnings being treated as errors

@Avenger-285714 @opsiff

[opsiff]

是不是按之前这么改就行

Link:AOSC-Tracking/linux@3df62ce

Fails to build on loong64:

drivers/video/fbdev/ls2k500sfb.c:256:13: error: no previous prototype for 'ls2k500sfb_interrupt' [-Werror=missing-prototypes]
  256 | irqreturn_t ls2k500sfb_interrupt(int irq, void *arg)
      |             ^~~~~~~~~~~~~~~~~~~~                                                                  
drivers/video/fbdev/ls2k500sfb.c: In function 'get_gpio_irq_from_acpi_table':
drivers/video/fbdev/ls2k500sfb.c:291:23: error: 'chip' is used uninitialized [-Werror=uninitialized]
  291 |         chip->gpiodev = gpio_device_find_by_label("LOON0007:00");
      |         ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/ls2k500sfb.c:288:27: note: 'chip' was declared here
  288 |         struct gpio_chip *chip;
      |                           ^~~~
cc1: all warnings being treated as errors

@Avenger-285714 @opsiff