Re: [PATCH v2] ASoC: codecs: lpass-rx-macro: fix RXn(rx,n) macro for DSM_CTL and SEC7 regs

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On Wed, Oct 16, 2024 at 11:10:49PM +0100, Alexey Klimov wrote:
> Turns out some registers of pre-2.5 version of rxmacro codecs are not
> located at the expected offsets but 0xc further away in memory. So far
> the detected registers are CDC_RX_RX2_RX_PATH_SEC7 and
> CDC_RX_RX2_RX_PATH_DSM_CTL.
> 
> CDC_RX_RXn_RX_PATH_DSM_CTL(rx, n) macro incorrectly generates the address
> 0x540 for RX2 but it should be 0x54C and it also overwrites
> CDC_RX_RX2_RX_PATH_SEC7 which is located at 0x540.
> The same goes for CDC_RX_RXn_RX_PATH_SEC7(rx, n).
> 
> Fix this by introducing additional rxn_reg_stride2 offset. For 2.5 version
> and above this offset will be equal to 0.
> With such change the corresponding RXn() macros will generate the same
> values for 2.5 codec version for all RX paths and the same old values
> for pre-2.5 version for RX0 and RX1. However for the latter case with
> RX2 path it will also add rxn_reg_stride2 on top.
> 
> While at this, also remove specific if-check for INTERP_AUX from
> rx_macro_digital_mute() and rx_macro_enable_interp_clk(). These if-check
> was used to handle such special offset for AUX interpolator but since
> CDC_RX_RXn_RX_PATH_SEC7(rx, n) and CDC_RX_RXn_RX_PATH_DSM_CTL(rx, n)
> macros will generate the correst addresses of dsm register, they are no
> longer needed.
> 
> Cc: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
> ---
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

-- 
With best wishes
Dmitry



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