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Avila" , sc.suh@samsung.com Subject: Re: [PATCH v3 4/4] usb: host: add xhci-exynos driver Message-ID: <20220329023549.GA174737@ubuntu> MIME-Version: 1.0 In-Reply-To: <0366bcc4-b38d-db36-22d6-e6f33af9dbef@kernel.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNJsWRmVeSWpSXmKPExsWy7bCmue69Aqckg4OXZC2eHFnEbtG8eD2b xfU/7xkt2p9fYLM4f34Du8XlXXPYLBYta2W2aN40hdVi5lpli667NxgduDwu9/UyeSzYVOqx eM9LJo9NqzrZPPbPXcPu0bdlFaPH501yAexR2TYZqYkpqUUKqXnJ+SmZeem2St7B8c7xpmYG hrqGlhbmSgp5ibmptkouPgG6bpk5QNcpKZQl5pQChQISi4uV9O1sivJLS1IVMvKLS2yVUgtS cgrMC/SKE3OLS/PS9fJSS6wMDQyMTIEKE7Izjt9pZiqYyV3x8s9uxgbGCZxdjJwcEgImElt7 zzJ2MXJxCAnsYJS4s+A2I0hCSOATo0TL9kSIxDdGiT0/LrN0MXKAdczo8oOo2csosWifIUTN E0aJI/0z2EFqWARUJbZ+4gGpYRPQkrj34wQziC0ioClx/e93VpB6ZoHHTBIt76azgySEBWwl rt+8B2bzCuhIHHq7jBXCFpQ4OfMJC4jNKWAn8X7BXlaQ+aICKhKvDtaDzJEQmMshMWPFIkaI 21wk3k3SgHhMWOLV8S3sELaUxOd3e9kg7GKJXZ9amSB6GxglGh9AHCchYCwx61k72PPMAhkS b18/ZIWYqSxx5BYLRJhPouPwX3aIMK9ER5sQRKeyxPTLE1ghbEmJg6/PQU30kJj+7TgLJHju M0nc3nmYcQKj/Cwkn81Csg3C1pFYsPsT2yygFcwC0hLL/3FAmJoS63fpL2BkXcUollpQnJue WmxUYASP6eT83E2M4FSr5baDccrbD3qHGJk4GA8xSnAwK4nwyp61TxLiTUmsrEotyo8vKs1J LT7EaAqMponMUqLJ+cBkn1cSb2hiaWBiZmZobmRqYK4kzuuVsiFRSCA9sSQ1OzW1ILUIpo+J g1OqgemYdGnt5OKs//4hfRtPVmu9j/c13J9xNcxnkunst1ukZnkufX55vZJs1KrEgjkL2zv0 Qm7fmHRpaa4+/7wH3TlN+6t3p+7/2zUx5PWR6i8+xsEXNMz+z0i+6NL6vmSPXDXHHWvZDt5f K94v8j0ToGkeks4YZlv2bd71aR9fuk75dWXXfLvo4utWt1JM0m7sn73t/8yJNXtszV64xC59 ++uF7H3piqaw3MuezCl3A+SL8tIUHvOKah5UWOTAGjR111LD+5M9RQSW/TtQc6kp+cyEOTPf 3bqyPI7vt92FPy97fr9YVLDKYcN5gyB3r1Atr/qdZ5jShcIeh8UyfTXsPJNX5rlFMWWV1IQd ppIBnRuUWIozEg21mIuKEwF6ZfOsPgQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrMLMWRmVeSWpSXmKPExsWy7bCSnO7dAqckgxUbrS2eHFnEbtG8eD2b xfU/7xkt2p9fYLM4f34Du8XlXXPYLBYta2W2aN40hdVi5lpli667NxgduDwu9/UyeSzYVOqx eM9LJo9NqzrZPPbPXcPu0bdlFaPH501yAexRXDYpqTmZZalF+nYJXBnLNkxmKbjJUTFp2S3m BsaXbF2MHBwSAiYSM7r8uhi5OIQEdjNK9C2Yw9zFyAkUl5RYOvcGO4QtLHG/5QgrRNEjRokT nY/YQZpZBFQltn7iAalhE9CSuPfjBFiviICmxPW/38HqmQWeMkks3tjGBJIQFrCVuH7zHthQ XgEdiUNvl0ENvc8k0f7tOlRCUOLkzCcsIDYz0NQb/14ygSxjFpCWWP6PAyTMKWAn8X7BXlaQ sKiAisSrg/UTGAVnIWmehaR5FkLzAkbmVYySqQXFuem5xYYFhnmp5XrFibnFpXnpesn5uZsY wfGipbmDcfuqD3qHGJk4GA8xSnAwK4nwyp61TxLiTUmsrEotyo8vKs1JLT7EKM3BoiTOe6Hr ZLyQQHpiSWp2ampBahFMlomDU6qByURzarz3yhdrg65snfpF7GpEyYU/HZk6Txac0V10adeX jxKlypM275E+UXJvrpKI/5beWU/nvlxZ12c3K7hxruXV0wUuxW7arT0r92337lZaKi2Vt7dD 5ijbNrnbDFV3TspP/FzzPrX1j2iSzCpjo61Xrj16NznXVstXd9Vk/3DOLzaBQhs+JHeF7ZPZ 2p7DFamlcMTpQV/39PD+ENmNh9U+Rx5rO2XAGGXKO3v79U3TtQVNo3fVFYmtOb2fif1n/NXX c9xtv2w9XqugwTBRPOJsp8fsrfl6K8y9bpmGKL5XDlsWzHv0/pZfF92YvnEHPvh001XAIEw9 zVQ41915gXro03+cTZPn1Cc7Xt5bpMRSnJFoqMVcVJwIAMNr6WwGAwAA X-CMS-MailID: 20220329023718epcas2p3390e740d7b77e7ad0f60b1fd7f8f8c25 X-Msg-Generator: CA Content-Type: multipart/mixed; boundary="----ONjdBwygxer2qCWpL6Cfkdc2CTGKeo01bleMSM1m.vqr4jSS=_275d1_" X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20220321090205epcas2p15ac16f281554b663062e0e31666defab References: <1647853194-62147-1-git-send-email-dh10.jung@samsung.com> <1647853194-62147-5-git-send-email-dh10.jung@samsung.com> <20220323023420.GC19041@ubuntu> <0366bcc4-b38d-db36-22d6-e6f33af9dbef@kernel.org> X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ------ONjdBwygxer2qCWpL6Cfkdc2CTGKeo01bleMSM1m.vqr4jSS=_275d1_ Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline On Wed, Mar 23, 2022 at 09:26:13AM +0100, Krzysztof Kozlowski wrote: > On 23/03/2022 03:34, Jung Daehwan wrote: > > On Tue, Mar 22, 2022 at 06:10:00PM +0100, Krzysztof Kozlowski wrote: > >> On 21/03/2022 09:59, Daehwan Jung wrote: > >>> This driver supports USB Audio offload with Co-processor. > >> > >> One do you need one more XHCI driver? How does it differ from existing > >> and why existing cannot be extended? > > > > I have some exynos specific features and that's because need own driver. > > It's not good to modify other XHCI driver for my features. > > > > Additinally, I've been developing some features with other IP or Co-Processors. > > Extending is not enough to cover them and I think owning driver is also better > > on structural view. > > This reason is not good enough because it's not visible that you cannot > extend existing drivers. > > > Best regards, > Krzysztof > I could extend existing drivers as you said. It needs big change on my driver and it could take long time... I'm going to try it. Thanks for the comment. Best Regards, Jung Daehwan ------ONjdBwygxer2qCWpL6Cfkdc2CTGKeo01bleMSM1m.vqr4jSS=_275d1_ Content-Type: text/plain; charset="utf-8" ------ONjdBwygxer2qCWpL6Cfkdc2CTGKeo01bleMSM1m.vqr4jSS=_275d1_--