Message ID | 20231125-topic-rb1_feat-v1-2-11d71b12b058@linaro.org |
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State | New |
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[178.235.187.180]) by smtp.gmail.com with ESMTPSA id 19-20020a170906319300b00992b8d56f3asm3500345ejy.105.2023.11.25.06.17.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 25 Nov 2023 06:17:46 -0800 (PST) From: Konrad Dybcio <konrad.dybcio@linaro.org> Date: Sat, 25 Nov 2023 15:17:30 +0100 Subject: [PATCH 02/12] dt-bindings: display: msm: Add reg bus and rotator interconnects MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20231125-topic-rb1_feat-v1-2-11d71b12b058@linaro.org> References: <20231125-topic-rb1_feat-v1-0-11d71b12b058@linaro.org> In-Reply-To: <20231125-topic-rb1_feat-v1-0-11d71b12b058@linaro.org> To: Rob Clark <robdclark@gmail.com>, Abhinav Kumar <quic_abhinavk@quicinc.com>, Dmitry Baryshkov <dmitry.baryshkov@linaro.org>, Sean Paul <sean@poorly.run>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, Loic Poulain <loic.poulain@linaro.org>, Bryan O'Donoghue <bryan.odonoghue@linaro.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>, Georgi Djakov <djakov@kernel.org>, Will Deacon <will@kernel.org>, Robin Murphy <robin.murphy@arm.com>, Joerg Roedel <joro@8bytes.org>, Krishna Manikandan <quic_mkrishn@quicinc.com>, Robert Marko <robimarko@gmail.com>, Das Srinagesh <quic_gurus@quicinc.com> Cc: Marijn Suijten <marijn.suijten@somainline.org>, Rob Herring <robh@kernel.org>, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, Konrad Dybcio <konrad.dybcio@linaro.org> X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1700921858; l=1875; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=AFFsjfQ/BWb6zbEE2kIE5M6+YBHmlQ+rokF2C+2Kd04=; b=Ko21H+lWGGl59y8qJsZ+LTUw0AWkhTziUlqwg4+lQP0Zq18rNp2fD1omovB6ZeBmhVmjSNMTp wKdjaAGzz5nAy1P3zo5fSusiUSJLqx/3Pre4Gi7Q7gCCuziLVKdW0lH X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,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 groat.vger.email Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Sat, 25 Nov 2023 06:18:03 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783545887894666627 X-GMAIL-MSGID: 1783545887894666627 |
Series |
RB1/QCM2290 features
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Commit Message
Konrad Dybcio
Nov. 25, 2023, 2:17 p.m. UTC
Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there are other connection paths: - a path that connects rotator block to the DDR. - a path that needs to be handled to ensure MDSS register access functions properly, namely the "reg bus", a.k.a the CPU-MDSS CFG interconnect. Describe these paths bindings to allow using them in device trees and in the driver Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> [Konrad: rework for one vs two MDP paths] Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- .../devicetree/bindings/display/msm/mdss-common.yaml | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)
Comments
On 25/11/2023 15:17, Konrad Dybcio wrote: > Apart from the already handled data bus (MAS_MDP_Pn<->DDR), there are > other connection paths: > - a path that connects rotator block to the DDR. > - a path that needs to be handled to ensure MDSS register access > functions properly, namely the "reg bus", a.k.a the CPU-MDSS CFG > interconnect. > > Describe these paths bindings to allow using them in device trees and in > the driver > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > [Konrad: rework for one vs two MDP paths] > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> > --- Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml index f69196e4cc76..c6305a6e0334 100644 --- a/Documentation/devicetree/bindings/display/msm/mdss-common.yaml +++ b/Documentation/devicetree/bindings/display/msm/mdss-common.yaml @@ -61,17 +61,27 @@ properties: ranges: true + # This is not a perfect description, but it's impossible to discern and match + # the entries like we do with interconnect-names interconnects: minItems: 1 items: - description: Interconnect path from mdp0 (or a single mdp) port to the data bus - description: Interconnect path from mdp1 port to the data bus + - description: Interconnect path from CPU to the reg bus interconnect-names: - minItems: 1 - items: - - const: mdp0-mem - - const: mdp1-mem + oneOf: + - minItems: 1 + items: + - const: mdp0-mem + - const: cpu-cfg + + - minItems: 2 + items: + - const: mdp0-mem + - const: mdp1-mem + - const: cpu-cfg resets: items: