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Wed, 10 May 2023 10:22:55 +0000 Received: from nasanex01a.na.qualcomm.com (nasanex01a.na.qualcomm.com [10.52.223.231]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34AAMtTd027369 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 May 2023 10:22:55 GMT Received: from varda-linux.qualcomm.com (10.80.80.8) by nasanex01a.na.qualcomm.com (10.52.223.231) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Wed, 10 May 2023 03:22:49 -0700 Date: Wed, 10 May 2023 15:52:45 +0530 From: Varadarajan Narayanan To: Dmitry Baryshkov CC: , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v11 8/9] arm64: dts: qcom: ipq9574: Add LDO regulator node Message-ID: <20230510102244.GA21530@varda-linux.qualcomm.com> References: <42bf6244582d6208f51db1a9299fe1c8afab4e14.1683630932.git.quic_varada@quicinc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nasanex01a.na.qualcomm.com (10.52.223.231) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: n9j7NvPT3oQR1Gs-DzZ4KCoQp_4YgHjt X-Proofpoint-GUID: n9j7NvPT3oQR1Gs-DzZ4KCoQp_4YgHjt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-10_04,2023-05-05_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 phishscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 malwarescore=0 mlxscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305100081 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230510_032307_133955_6CE1F8C7 X-CRM114-Status: GOOD ( 22.33 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Tue, May 09, 2023 at 04:08:59PM +0300, Dmitry Baryshkov wrote: > On Tue, 9 May 2023 at 14:56, Varadarajan Narayanan > wrote: > > > > Add LDO regulator node > > > > Signed-off-by: Varadarajan Narayanan > > --- > > Changes in v10: > > - Add LDO regulator node > > --- > > arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 7 +++++++ > > 1 file changed, 7 insertions(+) > > Reviewed-by: Dmitry Baryshkov > > Minor question below: > > > > > diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > > index bdc1434..1f5d14f 100644 > > --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > > +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > > @@ -60,6 +60,13 @@ > > regulator-min-microvolt = <725000>; > > regulator-max-microvolt = <1075000>; > > }; > > + > > + mp5496_l2: l2 { > > + regulator-min-microvolt = <1800000>; > > + regulator-max-microvolt = <1800000>; > > + regulator-boot-on; > > + regulator-always-on; > > This usually points out that there are other users which are not yet > enabled/properly specified. What users are there for this supply which > demand it to be always on? The 1.8v rail is used by PCIe PHY, PLL for Ethernet SerDes interface and PLLs that generate SoC clocks. The voting for this rail is managed by the RPM f/w. Thanks Varada > > + }; > > }; > > }; > > > > -- > > 2.7.4 > > > > > -- > With best wishes > Dmitry -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy