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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12c919266f6sm21072313c88.1.2026.04.23.07.44.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Apr 2026 07:44:56 -0700 (PDT) Date: Thu, 23 Apr 2026 22:44:50 +0800 From: Shawn Guo To: Rob Herring Cc: Bjorn Andersson , Krzysztof Kozlowski , Conor Dooley , Praveen Talari , Konrad Dybcio , Dmitry Baryshkov , Bartosz Golaszewski , Deepti Jaggi , linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] dt-bindings: qcom: geni-se-qup: Add compatible for Nord SoC Message-ID: References: <20260420064401.1248833-1-shengchao.guo@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Proofpoint-ORIG-GUID: kTOYNzHNQ9E0kelIzGwjhDUDJ-QoXwDh X-Authority-Analysis: v=2.4 cv=YZeNIQRf c=1 sm=1 tr=0 ts=69ea306a cx=c_pps a=SvEPeNj+VMjHSW//kvnxuw==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=j3siSaVScxvUr_GfrVUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=Kq8ClHjjuc5pcCNDwlU0:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDIzMDE0NiBTYWx0ZWRfX4XePvHulE/yv VZB82dylS+QM8EGHna5tAcxe8RgkRNldpgk2VyxI1UhGRmm5LMEO9T9stoC3Q/iW0uPXSEvOB+h pCKTvWx/KHjykmYpCgu7gzCYMpMXSm70DGZO9G1WVrS1300lJr36G3KAhkA6dP3/7zsVTEjmcNB EiZSLQX86uTsC5AwV43bNdQdc8ZiYvehDenEKVP1c6ogXQHtKUb/kL2j/6+4VEh9cZ3zzCqFHfv kaCjlC3BomH49y73Hu75445UDsa6EMTI5T+CsasUi1tkJ2rhtadDAMbqM5tL4jVDWoe2TfsneQK mu2iSc6B1MsCRk+3xLg8dEjj2h7Gkwwhzjl9Iwn2p8YlhQ2QthFqTOBSoUNmZD9PHqvlLSdDgtX XDPRcHbBSQ0GqaqjT3r14pZ4I0GfId6H99zQMMULJoy5AhJo3YayuA6CuQ2apmJ6rz2RMxKTX2o D2PTbknU7qdWOvSlgMA== X-Proofpoint-GUID: kTOYNzHNQ9E0kelIzGwjhDUDJ-QoXwDh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-23_03,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 bulkscore=0 phishscore=0 suspectscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604230146 On Thu, Apr 23, 2026 at 07:08:15AM -0500, Rob Herring wrote: > On Thu, Apr 23, 2026 at 6:07 AM Shawn Guo > wrote: > > > > On Mon, Apr 20, 2026 at 02:44:01PM +0800, Shawn Guo wrote: > > > From: Deepti Jaggi > > > > > > Add compatibles for GENI Serial Engine QUP Wrapper Controller on Nord SoC > > > with fallback on SA8255P compatibles. > > > > > > Signed-off-by: Deepti Jaggi > > > Signed-off-by: Shawn Guo > > > --- > > > .../soc/qcom/qcom,sa8255p-geni-se-qup.yaml | 20 +++++++++++++++---- > > > 1 file changed, 16 insertions(+), 4 deletions(-) > > > > > > diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml > > > index 352af3426d34..d73f9edcbbdb 100644 > > > --- a/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml > > > +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,sa8255p-geni-se-qup.yaml > > > @@ -19,7 +19,12 @@ description: > > > > > > properties: > > > compatible: > > > - const: qcom,sa8255p-geni-se-qup > > > + oneOf: > > > + - enum: > > > + - qcom,sa8255p-geni-se-qup > > > + - items: > > > + - const: qcom,nord-auto-geni-se-qup > > > > AUTO variant of Nord is SA8797P, so it makes more sense to use > > 'qcom,sa8797p-geni-se-qup' which is more consistent to > > 'qcom,sa8255p-geni-se-qup'. Will update in the next version. > > I thought QCom moved to these codenames because the chips are the same > with different part#'s by market/application. Hi Rob, Your observation is correct! We did move to using code names. But we hadn't needed to use part number along with code name until Nord SA8797P (and Lemans SA8255P), where platform resources like clock, regulator, interconnect, powerdomain and PHY are handled in firmware through SCMI. Those resources will be present in Nord's DT but not in SA8797P's for some devices, e.g. geni-se-qup. That said, SA8797P has a different programming model from Nord for these devices. In case of geni-se-qup, Nord is compatible with 'qcom,geni-se-qup' while SA8797P is compatible with 'qcom,sa8255p-geni-se-qup'. Hope it clarifies the thing a bit. And I will update subject and commit log to make it clear that we are actually documenting geni-se-qup for SA8797P. Shawn