Re: [PATCH v12 3/6] mmc: sdhci-msm: Set ICE clk to TURBO at sdhci ICE init

[Abel Vesa]

On 26-08-24 01:17:40, Abhinaba Rakshit wrote:
> MMC controller lacks a clock scaling mechanism, unlike the UFS
> controller. By default, the MMC controller is set to TURBO mode
> during probe, but the ICE clock remains at XO frequency,
> leading to read/write performance degradation on eMMC.
> 
> To address this, set the ICE clock to TURBO during sdhci_msm_ice_init
> to align it with the controller clock. This ensures consistent
> performance and avoids mismatches between the controller
> and ICE clock frequencies.
> 
> For platforms where ICE is represented as a separate device,
> use the OPP framework to vote for TURBO mode, maintaining
> proper voltage and power domain constraints.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Signed-off-by: Abhinaba Rakshit <abhinaba.rakshit@xxxxxxxxxxxxxxxx>

Reviewed-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>