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Thu, 24 Jul 2025 09:54:08 +0000 (GMT) From: "Pritam Manohar Sutar" To: "'Alim Akhtar'" , "'Krzysztof Kozlowski'" , "'Krzysztof Kozlowski'" Cc: , , , , , , , , , , , , , , , , , , , , , In-Reply-To: <2a1901dbfbcf$a21b45e0$e651d1a0$@samsung.com> Subject: RE: [PATCH v4 1/6] dt-bindings: phy: samsung,usb3-drd-phy: add ExynosAutov920 HS phy compatible Date: Thu, 24 Jul 2025 15:24:07 +0530 Message-ID: <000001dbfc80$e85fd690$b91f83b0$@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJAgQZ9LFXBZrDskwNBYris6jFv1AKCX9A9Aa5wAf0Bi5UAqwCML2yKAWUlSf8CRPacEQIi1iyNAmb2xVkCD/Nw+wC0VRd5AgU5TrgBzoneLbLPVtqQ Content-Language: en-in X-CMS-MailID: 20250724095412epcas5p36b38fe9e1b835e731abdbcaf64be1174 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20250701115955epcas5p320cfe73ca33522cd2f9f7970cfde1c63 References: <20250701120706.2219355-1-pritam.sutar@samsung.com> <20250701120706.2219355-2-pritam.sutar@samsung.com> <20250706-fresh-meaty-cougar-5af170@krzk-bin> <07d301dbf0ae$0658cbe0$130a63a0$@samsung.com> <9a2d0ad7-cb1f-473d-a91a-3a1b59b71280@kernel.org> <000c01dbf70b$ccdbf630$6693e290$@samsung.com> <00ff01dbfac1$ee528860$caf79920$@samsung.com> <9a97cc9e-2221-44d6-83e9-25b1bec10a6f@kernel.org> <000901dbfb90$42873060$c7959120$@samsung.com> <6e1c67d2-9bfa-442a-9d53-8c5970a2a9ef@kernel.org> <2a1901dbfbcf$a21b45e0$e651d1a0$@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250724_025618_557219_ED70765C X-CRM114-Status: GOOD ( 25.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi,=20 > -----Original Message----- > From: Alim Akhtar > Sent: 23 July 2025 06:15 PM > To: 'Krzysztof Kozlowski' ; 'Pritam Manohar Sutar' > ; 'Krzysztof Kozlowski' > > Cc: vkoul=40kernel.org; kishon=40kernel.org; robh=40kernel.org; > krzk+dt=40kernel.org; conor+dt=40kernel.org; andre.draszik=40linaro.org; > peter.griffin=40linaro.org; neil.armstrong=40linaro.org; kauschluss=40dis= root.org; > ivo.ivanov.ivanov1=40gmail.com; m.szyprowski=40samsung.com; > s.nawrocki=40samsung.com; linux-phy=40lists.infradead.org; > devicetree=40vger.kernel.org; linux-kernel=40vger.kernel.org; linux-arm- > kernel=40lists.infradead.org; linux-samsung-soc=40vger.kernel.org; > rosa.pila=40samsung.com; dev.tailor=40samsung.com; > faraz.ata=40samsung.com; muhammed.ali=40samsung.com; > selvarasu.g=40samsung.com > Subject: RE: =5BPATCH v4 1/6=5D dt-bindings: phy: samsung,usb3-drd-phy: a= dd > ExynosAutov920 HS phy compatible >=20 >=20 >=20 > > -----Original Message----- > > From: Krzysztof Kozlowski > > Sent: Wednesday, July 23, 2025 2:13 PM > > To: Pritam Manohar Sutar ; 'Krzysztof > > Kozlowski' > > Cc: vkoul=40kernel.org; kishon=40kernel.org; robh=40kernel.org; > =5Bsnip=5D > > >>>>> Ok got it. Will change supplies name as below avdd075_usb =3D> > > >>>>> avdd075-usb > > >>>>> avdd18_usb20 =3D> avdd18-usb20 > > >>>>> avdd33_usb20 =3D> avdd33-usb20 > > >>>>> > > >>>>> Confirm the above change that is meant in terms of DTS style. > > >>>> Yes. I have doubts that actual supplies have suffix usb20. Are > > >>>> there more than one avdd18 for this block? > > >>>> > > >>> > > >>> Yes, there are more than one vdd18 supplies for this block. > > >> > > >> And their names are? > > >> > > >>> > > >>> Re-analysed your comment on adding new supplies. > > >>> Going to re-use existing supplies as mentioned below, rather than > > >>> introducing new supplies > > >>> > > >>> dvdd-usb20-supply =3D> for 0.75v > > >>> vddh-usb20-supply =3D> for 1.8v > > >>> vdd33-usb20-supply =3D> for 3.3v > > >> > > >> > > >> You just expect us to guess whether this is correct... > > > > > > Sorry about not being clear so far. > > > > > > V920 needs three supplies, 0.75v, 1.8v and 3.3v for USB PHY The > > > naming convention used in the schematic are avdd075-usb, > > > avdd18_usb20, avdd33_usb20. > > > > > > However, PHY's user manual just mentions DVDD, VDD33 and VDD18. > > > > > > Then dvdd, vdd33 and vdd18. > > > > > Since GS101 binding already using supply names similar to what is > > mentioned in the PHY user manual. > > > > > > GS101 has USB 2.0 and DP, thus the suffix made some sense. I think you > > have only USB 2.0, that's why I question the suffix. > > > I cross checked the schematic of v920 SADK, this is a combo PHY which > support USB-3.0 as well. > =40 Pritam > Schema should capture all the supplies including USB-3.0, similar to GS10= 1 > (which has USB2.0 and DP combo). > So that would be as below: > dvdd075-usb20-supply > vdd18-usb20-supply > vdd33-usb20-supply > dvdd075-usb30-supply > vdd18-usb30-supply > please cross check the supply at your end and do the needful. >=20 Yes, we have a combo PHY that supports USB20 and USB30 and=20 need these supplies. Will update the binding accordingly. > > > > Best regards, > > Krzysztof Thank you. Regards, Pritam