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Bug#1103877: /boot/vmlinuz-6.12.22-amd64: ThinkPad X1 Carbon Gen 12 MIPI camera support

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On Tue, Apr 22, 2025 at 11:33:23AM +0000, Bjørn Mork wrote:
> Package: src:linux
> Version: 6.12.22-1
> Severity: wishlist
> File: /boot/vmlinuz-6.12.22-amd64
> 
> Dear Maintainer,
> 
> Hans de Goede excellent docs on https://hansdegoede.dreamwidth.org/29477.html
> lists a few missing pieces in the ThinkPad X1 Carbon Gen 12 MIPI camera puzzle.
> 
> The first is a few ov08x40 sensor patches, These are now all in mainline.  Could
> you please cherry-pick the following commits from mainline in this order?:
> 
> f46cf0cfd613 media: ov08x40: Rename ext_clk to xvclk
> df1ae2251a50 media: ov08x40: Add OF probe support
> 69dea0ed8461 media: ov08x40: Properly turn sensor on/off when runtime-suspended
> a7966ed7a6a2 media: ov08x40: Move fwnode_graph_get_next_endpoint() call up
> 6cdde1bbefa0 media: ov08x40: Get reset GPIO and regulators on ACPI platforms too
> e354dc1d6d99 media: ov08x40: Get clock on ACPI platforms too
> 7a39639e448f media: ov08x40: Move ov08x40_identify_module() function up
> 24d74ca5024a media: ov08x40: Improve ov08x40_identify_module() error logging
> db718c2745e3 media: ov08x40: Improve ov08x40_[read|write]_reg() error returns
> ebf185efadb7 media: ov08x40: Add missing ov08x40_identify_module() call on stream-start
> 4254dc1ab3b8 media: ov08x40: Add missing '\n' to ov08x40_check_hwcfg() error messages
> 766d952c08bd media: ov08x40: Don't log ov08x40_check_hwcfg() errors twice
> 8d5471544139 media: ov08x40: Fix value of reset GPIO when requesting it
> f2006362aa3f media: ov08x40: Log chip ID when identifying the chip
> 
> This will bring the ov08x40 sensor driver in sync with the v6.15 version,
> making it work with the sensor in the Lenovo ThinkPad X1 Carbon Gen 12.
> 
> Some of the patches are obviously optional - dealing with log output etc -
> but including them all makes the backport cleaner. Please let me know if
> you prefer a minimal backport of required changes instead.

Given that this is a feature addition and the Debian kernel team doesn't
have the manpower to carry many patches, I'd ask you to use a backports
kernel which should include these patches soon.

Best regards
Uwe

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Bug#1103877: /boot/vmlinuz-6.12.22-amd64: ThinkPad X1 Carbon Gen 12 MIPI camera support Bjørn Mork <bjorn@gustav.mork.no> - 2025-04-22 14:00 +0200
  Bug#1103877: /boot/vmlinuz-6.12.22-amd64: ThinkPad X1 Carbon Gen 12 MIPI camera support Uwe Kleine-König <ukleinek@debian.org> - 2025-04-25 15:10 +0200
    Bug#1103877: /boot/vmlinuz-6.12.22-amd64: ThinkPad X1 Carbon Gen 12 MIPI camera support Bjørn Mork <bjorn@mork.no> - 2025-04-26 13:20 +0200

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