On Tue, Apr 14, 2026 at 12:12:10PM +0200, David Heidelberg via B4 Relay wrote:
> From: David Heidelberg <[email protected]>
> 
> The IMX355 sensor supports multiple external clock frequencies,
> including 19.2 MHz and 24 MHz. The driver currently supports only
> fixed 19.2 MHz input clock.
> 
> Refactor the clock handling to make the PLL configuration dependent
> on the external clock frequency and add support for 24 MHz. Introduce
> a table of clock parameter sets and program the corresponding EXTCLK
> frequency and PLL multipliers to maintain consistent internal VCO
> frequencies across supported inputs.
> 
> The PLL settings are adjusted so that:
>   - VT VCO remains at 1152 MHz
>   - OP VCO remains at 720 MHz
> 
> This preserves existing timing characteristics while allowing systems
> using a 24 MHz clock to operate correctly.
> 
> No functional change for existing 19.2 MHz users.
> 
> Assisted-by: Claude:claude-opus-4-6
> Signed-off-by: David Heidelberg <[email protected]>
> ---

We are in an open merge window for v7.1-rc1 and there don't seem to be
reviews currently, but I tested this revision on v6.19.10.

Tested-by: Richard Acayan <[email protected]> # Pixel 3a

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