linux-kernel - Re: [PATCH 2/2] clk: qcom: lpasscc: Add resets for SC7280 audioreach clock controller

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Message-ID: <efde6373-f788-5c0c-4712-7b9caf7ad3d4@linaro.org>
Date:   Wed, 21 Dec 2022 11:39:41 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>,
        swboyd@...omium.org, agross@...nel.org, andersson@...nel.org,
        robh+dt@...nel.org, broonie@...nel.org, quic_plai@...cinc.com,
        krzysztof.kozlowski+dt@...aro.org, konrad.dybcio@...ainline.org,
        mturquette@...libre.com, sboyd@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_rohkumar@...cinc.com
Subject: Re: [PATCH 2/2] clk: qcom: lpasscc: Add resets for SC7280 audioreach
 clock controller

On 21/12/2022 11:21, Srinivasa Rao Mandadapu wrote:
> The clock gating control for TX/RX/WSA core bus clocks would be required
> to be reset(moved from hardware control) from audio core driver. Thus
> add the support for the reset clocks in audioreach based clock driver.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> ---
>  drivers/clk/qcom/lpasscc-sc7280.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/clk/qcom/lpasscc-sc7280.c b/drivers/clk/qcom/lpasscc-sc7280.c
> index 5c1e17b..d81d81b 100644
> --- a/drivers/clk/qcom/lpasscc-sc7280.c
> +++ b/drivers/clk/qcom/lpasscc-sc7280.c
> @@ -12,10 +12,12 @@
>  #include <linux/regmap.h>
>  
>  #include <dt-bindings/clock/qcom,lpass-sc7280.h>
> +#include <dt-bindings/clock/qcom,lpassaudiocc-sc7280.h>

These are bindings for different device.

>  
>  #include "clk-regmap.h"
>  #include "clk-branch.h"
>  #include "common.h"
> +#include "reset.h"
>  
>  static struct clk_branch lpass_top_cc_lpi_q6_axim_hs_clk = {
>  	.halt_reg = 0x0,
> @@ -102,6 +104,18 @@ static const struct qcom_cc_desc lpass_qdsp6ss_sc7280_desc = {
>  	.num_clks = ARRAY_SIZE(lpass_qdsp6ss_sc7280_clocks),
>  };
>  
> +static const struct qcom_reset_map lpass_cc_sc7280_resets[] = {
> +	[LPASS_AUDIO_SWR_RX_CGCR] =  { 0xa0, 1 },
> +	[LPASS_AUDIO_SWR_TX_CGCR] =  { 0xa8, 1 },
> +	[LPASS_AUDIO_SWR_WSA_CGCR] = { 0xb0, 1 },

These are example the same - IDs and values - as
qcom,sc7280-lpassaudiocc. Aren't you duplicating same control?

Best regards,
Krzysztof