ACK: Re: [PATCH 0/4][SRU][Noble] handle broken ACPI MIPI DisCo data

[Timo Aaltonen]

You-Sheng Yang kirjoitti 25.6.2024 klo 10.20:
> BugLink: https://bugs.launchpad.net/bugs/2070251
> 
> [Impact]
> 
> Multiple early IPU6 platforms may not have formal MIPI DisCo data
> embedded in ACPI, and they may confuse latter driver and fail device
> probing:
> 
>    ov01a10 i2c-OVTI01A0:00: can't get clock frequency
>    ov01a10 i2c-OVTI01A0:00: failed to check hwcfg: -22
>    ov01a10: probe of i2c-OVTI01A0:00 failed with error -22
> 
> [Fix]
> 
> A few commits from mainline kernel up to v6.10-rc5.
> 
> [Test Case]
> 
> Camera sensor device should then be probed correctly.
> 
> [Where problems could occur]
> 
> These fixes are based on MIPI DisCo support that is only available since
> v6.8. For older kernels, the ipu6-drivers either has no hwcfg checking
> implemented, or patched with DMI info to skip it.
> 
> [Other Info]
> 
> While the patches are from v6.10-rc5, only Noble and OEM-6.8 will be
> nominated for fixing.
> 
> Hans de Goede (1):
>    ACPI: scan: Ignore camera graph port nodes on all Dell Tiger, Alder
>      and Raptor Lake models
> 
> Sakari Ailus (3):
>    ACPI: utils: Make acpi_handle_path() not static
>    ACPI: property: Ignore bad graph port nodes on Dell XPS 9315
>    ACPI: property: Polish ignoring bad data nodes
> 
>   drivers/acpi/internal.h       |  5 +++
>   drivers/acpi/mipi-disco-img.c | 81 +++++++++++++++++++++++++++++++++++
>   drivers/acpi/property.c       |  3 ++
>   drivers/acpi/utils.c          |  2 +-
>   include/linux/acpi.h          |  1 +
>   5 files changed, 91 insertions(+), 1 deletion(-)
> 

part of the mipi/ipu6 maze, and required for oem-6.5->hwe-6.8 transition, so

Acked-by: Timo Aaltonen <timo.aaltonen at canonical.com>

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