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Tue, 29 Aug 2023 00:42:28 -0700 (PDT) Message-ID: Date: Tue, 29 Aug 2023 09:42:27 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.14.0 Subject: Re: [PATCH v3 11/28] dt-bindings: usb: dwc3: Add snps,num-hc-interrupters definition Content-Language: en-US To: Wesley Cheng , Rob Herring Cc: srinivas.kandagatla@linaro.org, mathias.nyman@intel.com, perex@perex.cz, broonie@kernel.org, lgirdwood@gmail.com, krzysztof.kozlowski+dt@linaro.org, agross@kernel.org, Thinh.Nguyen@synopsys.com, bgoswami@quicinc.com, andersson@kernel.org, gregkh@linuxfoundation.org, tiwai@suse.com, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, quic_jackp@quicinc.com, quic_plai@quicinc.com References: <20230308235751.495-1-quic_wcheng@quicinc.com> <20230308235751.495-12-quic_wcheng@quicinc.com> <20230311134008.GA20831-robh@kernel.org> <73655c17-5246-2c96-d415-6a30497966c3@linaro.org> <9d31db9c-4e58-767a-15c5-65f7c04bd989@quicinc.com> From: Krzysztof Kozlowski In-Reply-To: <9d31db9c-4e58-767a-15c5-65f7c04bd989@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Message-ID-Hash: V74652JZHI5SOXZRIYIOQPBTVD7BUQSN X-Message-ID-Hash: V74652JZHI5SOXZRIYIOQPBTVD7BUQSN X-MailFrom: krzysztof.kozlowski@linaro.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On 29/08/2023 09:19, Wesley Cheng wrote: >>> >>> This is a XHCI feature, but the DWC3 design is built in a way that DWC3 >>> host initializes the XHCI device and populates the properties associated >>> to XHCI dev. >> >> You speak about driver now, not bindings. If driver has limitations, >> change it. Not really problem of bindings. >> > > Its the limitation of the HW. Depending on how the SNPS DWC3 controller > was implemented the vendor it can support less than the value mentioned > in the Synopsys databook. Then what is "XHCI dev"? A Linux device? Then a driver topic. What is "populates the properties" - what or whose properties? Of Linux device? Then a driver topic... Best regards, Krzysztof