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[92.233.226.227]) by smtp.googlemail.com with ESMTPSA id y13sm1331454wrm.48.2021.09.28.01.31.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Sep 2021 01:31:21 -0700 (PDT) Subject: Re: [PATCH v2 4/5] ASoC: codecs: tx-macro: Update tx default values To: Srinivasa Rao Mandadapu , agross@kernel.org, bjorn.andersson@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, plai@codeaurora.org, bgoswami@codeaurora.org, perex@perex.cz, tiwai@suse.com, rohitkr@codeaurora.org, linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, swboyd@chromium.org, judyhsiao@chromium.org References: <1632313878-12089-1-git-send-email-srivasam@codeaurora.org> <1632313878-12089-5-git-send-email-srivasam@codeaurora.org> <20ddc4ea-e99c-5492-1931-be1999655563@codeaurora.org> From: Srinivas Kandagatla Message-ID: Date: Tue, 28 Sep 2021 09:31:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20ddc4ea-e99c-5492-1931-be1999655563@codeaurora.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Cc: Venkata Prasad Potturu X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" On 27/09/2021 17:42, Srinivasa Rao Mandadapu wrote: > > On 9/27/2021 4:12 PM, Srinivas Kandagatla wrote: > Thanks for your time Srini!! >> >> On 22/09/2021 13:31, Srinivasa Rao Mandadapu wrote: >>> Update mic control register default values to hardware reset values >>> >>> Fixes: c39667ddcfc5 (ASoC: codecs: lpass-tx-macro: add support for >>> lpass tx macro) >>> >>> Signed-off-by: Venkata Prasad Potturu >>> Signed-off-by: Srinivasa Rao Mandadapu >>> --- >>>   sound/soc/codecs/lpass-tx-macro.c | 6 +++--- >>>   1 file changed, 3 insertions(+), 3 deletions(-) >>> >>> diff --git a/sound/soc/codecs/lpass-tx-macro.c >>> b/sound/soc/codecs/lpass-tx-macro.c >>> index e980b2e..66c39fb 100644 >>> --- a/sound/soc/codecs/lpass-tx-macro.c >>> +++ b/sound/soc/codecs/lpass-tx-macro.c >>> @@ -279,7 +279,7 @@ static const struct reg_default tx_defaults[] = { >>>       { CDC_TX_CLK_RST_CTRL_SWR_CONTROL, 0x00}, >>>       { CDC_TX_TOP_CSR_TOP_CFG0, 0x00}, >>>       { CDC_TX_TOP_CSR_ANC_CFG, 0x00}, >>> -    { CDC_TX_TOP_CSR_SWR_CTRL, 0x00}, >>> +    { CDC_TX_TOP_CSR_SWR_CTRL, 0x60}, >> >> This does not make sense as this register only has one bit to control. >> Why do we even need to change this, can you please explain what >> happens if we do not change this? > > This register change is not making any impact. But when verified , reset > state of this register is 0x60. so is the reason for change. > > Will revert it and post again. > >> >>>       { CDC_TX_TOP_CSR_FREQ_MCLK, 0x00}, >>>       { CDC_TX_TOP_CSR_DEBUG_BUS, 0x00}, >>>       { CDC_TX_TOP_CSR_DEBUG_EN, 0x00}, >>> @@ -290,8 +290,8 @@ static const struct reg_default tx_defaults[] = { >>>       { CDC_TX_TOP_CSR_SWR_DMIC1_CTL, 0x00}, >>>       { CDC_TX_TOP_CSR_SWR_DMIC2_CTL, 0x00}, >>>       { CDC_TX_TOP_CSR_SWR_DMIC3_CTL, 0x00}, >>> -    { CDC_TX_TOP_CSR_SWR_AMIC0_CTL, 0x00}, >>> -    { CDC_TX_TOP_CSR_SWR_AMIC1_CTL, 0x00}, >>> +    { CDC_TX_TOP_CSR_SWR_AMIC0_CTL, 0x0E}, >>> +    { CDC_TX_TOP_CSR_SWR_AMIC1_CTL, 0x0E}, >> >> These two registers should have default value of 0x06 as this has only >> one clk selection field with bits 2:1. > > In Kodiak document reset state 0x0E and clk selection field is with bits 3:1 > > *LPASS_TX_TX_TOP_CSR_SWR_MIC1_CTL*|0x32200D4 > Offset: 0x54 Reset State: 0x0000000E In that case you should probably consider using regmap_register_patch() for corrections to the default registers in sm8250 case. --srini > >> >> -srini >> >> >>>       { CDC_TX_INP_MUX_ADC_MUX0_CFG0, 0x00}, >>>       { CDC_TX_INP_MUX_ADC_MUX0_CFG1, 0x00}, >>>       { CDC_TX_INP_MUX_ADC_MUX1_CFG0, 0x00}, >>> > -- > Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., > is a member of Code Aurora Forum, a Linux Foundation Collaborative Project. >