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Mon, 02 Nov 2026 03:02:12 -0800 (PST) Received: from [10.219.49.187] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ae8441a5ecsm14215562a91.2.2026.11.02.03.02.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Nov 2026 03:02:12 -0800 (PST) Message-ID: Date: Mon, 2 Nov 2026 16:32:06 +0530 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] ASoC: qcom: sc8280xp: Derive TDM channels from DT mask To: Shawn Guo , Mark Brown Cc: Srinivas Kandagatla , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Mohammad Rafi Shaik , Zhangfei Gao , Bartosz Golaszewski , linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261031082318.1146398-1-shengchao.guo@oss.qualcomm.com> Content-Language: en-US From: Prasad Kumpatla In-Reply-To: <20261031082318.1146398-1-shengchao.guo@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=KZ1HIgYD c=1 sm=1 tr=0 ts=6ae86db6 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=q7gVV3EAPCriVcb_4XEA:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAyMDA0MyBTYWx0ZWRfX4u0xzys1A3sN 9Zq6fnBegIrezlBwXXHpYgarO7GmV/gC3drtf9fJlqTv8dMswfM53/+ty/IH5L/MNv3JEgiI5F0 KUFVk2RaL8IcBifpUh9sGJKsz9vPk6G0koF3X8DZ5wBSiMF71t7dP0xDA33s/GD76m+AyOflD4/ OrTkdM6NtGpzwH7Kx9OdoogVi+sbxcPbDUDqCrbI8hV/GpwkjxhZmHq3j6d/NHSvCO/cZVfHB5I OkhyYGGPVF4bo2LauWX1hn2rAvzs1Ilb+V42/oQCTsi3Fdp9fMfT9dFzTYVy5/eKXPuLyk18TT/ Ot5B3SvL2BLsMdQXtG9wi47h8D14qnM4ti0dafA5mLxnofu6+H1R0On8FWgFbyWn6OH4ghhRWlg sboh7Zg5swFlC1WVp+aQI+PkkldbpiatNpVEOG0MEmbIkAIDeJ+hd+ffAvvpnLjeeUEhZwkLrfg MiVSjxDO+y1+UhOpQxg== X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAyMDA0MyBTYWx0ZWRfXxN4XEMlNP23v Fg3/PZnEaWsMTJhxZphC7hT3djG9K9dXIVn1KW51O/ALvoWj3T2BFbCsnTOocU5FHbhwfZI2sO/ +40vIWCcbBQz8RRXlp225jBQ//l2pqo= X-Proofpoint-ORIG-GUID: SkfE2ZYhsgqbP3HjB4GUOq3sq9mRjmGY X-Proofpoint-GUID: SkfE2ZYhsgqbP3HjB4GUOq3sq9mRjmGY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-11-02_03,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 phishscore=0 adultscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611020043 On 10/31/2026 1:53 PM, Shawn Guo wrote: > Derive the backend channel count of TDM DAIs from the cpu DAI TDM > slot mask in the DT, using the same DAI ID ranges and tx/rx mask > selection as q6tdm_set_tdm_slot(), so the channel count always matches > the number of slots programmed into the DSP. Each board then gets the > channel count its dai-link describes, e.g. 4/4 on Nord RRD, 6/4 on > RIDE. Keep the default of two when the link has no TDM slot > description, and fail the fixup on an invalid one. > > Signed-off-by: Shawn Guo > --- > Changes for v3: > - Propagate qcom_snd_get_dai_tdm_slots() errors other than -ENOENT > instead of silently falling back to two channels (Prasad) > - Link to v2: https://lore.kernel.org/all/20261029022340.591372-1-shengchao.guo@oss.qualcomm.com/ > LGTM, Reviewed-by: Prasad Kumpatla Thanks, Prasad