Re: [PATCH] media: venus: pm_helpers: add fallback for the opp-table
From: Konrad Dybcio
Date: Wed Jul 23 2025 - 09:31:13 EST
On 7/23/25 2:56 PM, Renjiang Han wrote:
> Since the device trees for both HFI_VERSION_1XX and HFI_VERSION_3XX
> do not include an opp-table and have not configured opp-pmdomain, they
> still need to use the frequencies defined in the driver's freq_tbl.
>
> Both core_power_v1 and core_power_v4 functions require core_clks_enable
> function during POWER_ON. Therefore, in the core_clks_enable function,
> if calling dev_pm_opp_find_freq_ceil to obtain the frequency fails,
> it needs to fall back to the freq_tbl to retrieve the frequency.
>
> Signed-off-by: Renjiang Han <quic_renjiang@xxxxxxxxxxx>
> ---
> Since device trees for both HFI_VERSION_1XX and HFI_VERSION_3XX do not
> contain an opp-table and have not configured opp-pmdomain, they still
> need to use the frequencies defined in the driver's freq_tbl.
>
> Therefore, if calling dev_pm_opp_find_freq_ceil to obtain the frequency
> fails in the core_clks_enable, it needs to fall back to the freq_tbl to
> retrieve the frequency.
>
> Validated this series on QCS615 and msm8916.
> ---
This is not a proper fix, the logic you added in core_get_v4() should
be moved to a common handler
Konrad