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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82739d4e10csm8130048b3a.1.2026.02.28.04.29.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Feb 2026 04:29:11 -0800 (PST) From: Kathiravan Thirumoorthy Date: Sat, 28 Feb 2026 17:59:00 +0530 Subject: [PATCH v9 1/5] dt-bindings: sram: describe the IPQ5424 IMEM as mmio-sram Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260228-wdt_reset_reason-v9-1-f96d7a4825d3@oss.qualcomm.com> References: <20260228-wdt_reset_reason-v9-0-f96d7a4825d3@oss.qualcomm.com> In-Reply-To: <20260228-wdt_reset_reason-v9-0-f96d7a4825d3@oss.qualcomm.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Wim Van Sebroeck , Guenter Roeck , Rajendra Nayak Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, Kathiravan Thirumoorthy , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772281742; l=1988; i=kathiravan.thirumoorthy@oss.qualcomm.com; s=20230906; h=from:subject:message-id; bh=x5iNPEjp2xSfvtFN3vU0//rgfEfwzETin/raI4qUzpg=; b=yaSkId9fnYE1LOoA8ymQ04aHBKxbJ6oTTxr6lO0f1Q7czUyE4NXEinMUi77Lrhlcnv3aaEqG7 4zAP8FGUAAsBdyDYKAM0TQ84x0+HT4KjhF/8eb0hNSRRe0yXUpr8OQ7 X-Developer-Key: i=kathiravan.thirumoorthy@oss.qualcomm.com; a=ed25519; pk=xWsR7pL6ch+vdZ9MoFGEaP61JUaRf0XaZYWztbQsIiM= X-Proofpoint-ORIG-GUID: Fp8-23J5G1xpZN9BjE9B85xfIMVkj2pv X-Proofpoint-GUID: Fp8-23J5G1xpZN9BjE9B85xfIMVkj2pv X-Authority-Analysis: v=2.4 cv=FaA6BZ+6 c=1 sm=1 tr=0 ts=69a2df99 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=e_-3XkEp85WdVaS5J-sA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI4MDExNSBTYWx0ZWRfX651TG2tRXyYl z87phHIhN0vhB/0ZVsxIiD6stJr06gqDeSJ74R/VN+dl+7zi8GPpTsg+XYchQ2gP3HINkQ2Vwg8 7bK2C3uZdGyOvfJP/HEy6I5Ui3ARAGYV+RqJEfl4IrffOh9U+BNnV/zEsJozi1sBAOqRUA2ui69 /j21pPMuYKz7Ds5OZHqjEXLhzIOqy3MfSBoiRuU8txBu/lNgSkjcuJhjVwb0EAmmqlLCKxAvAwB /cRJR4jbq2qv99M7roagQA40SvbyRO0cCCk7aUkhyzJ1cjJWF34jd0uGHH/0a8xNHinUtcQb6pk HlyWuXTGHgWTLhzWaQlhe2JSVnrCtCHcPBQhbYu+Kupzrk+3KCOqF7RaGpFN6lmxaoWw+wXK3U9 8gvhOoyWikSEyjHKw2zEdAQvPIjYrP1FLykmcDHDkSdE6itgheNq3byv4g1L+wVBMlCxbtULnp6 nRW72CFLXZQhGJIyLzQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-28_04,2026-02-27_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 bulkscore=0 adultscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602280115 IMEM shouldn=E2=80=99t be treated as a syscon or simple-mfd because it=E2= =80=99s really just on=E2=80=91chip SRAM, not a block of control registers or a device with multiple hardware functions. Describing it as generic mmio=E2=80=91sram keeps the model simple and close= r to what the hardware actually is. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Kathiravan Thirumoorthy --- Changes in v9: * Picked up R-b tag Changes in v8: * Updated the commit with the reasoning to move to mmio-sram Changes in v7: * Added the reference link Changes in v6: * New patch --- Documentation/devicetree/bindings/sram/qcom,imem.yaml | 1 - Documentation/devicetree/bindings/sram/sram.yaml | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sram/qcom,imem.yaml b/Docume= ntation/devicetree/bindings/sram/qcom,imem.yaml index 6a627c57ae2fecdbb81cae710f6fb5e48156b1f5..72d35e30c439ccf4901d937f838= fe7c7a81f33b1 100644 --- a/Documentation/devicetree/bindings/sram/qcom,imem.yaml +++ b/Documentation/devicetree/bindings/sram/qcom,imem.yaml @@ -18,7 +18,6 @@ properties: items: - enum: - qcom,apq8064-imem - - qcom,ipq5424-imem - qcom,msm8226-imem - qcom,msm8974-imem - qcom,msm8976-imem diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentati= on/devicetree/bindings/sram/sram.yaml index c451140962c86f4e8f98437a2830cb2c6a697e63..7bd24305a8c7d98dc6efad81e72= dc8d86d8b212b 100644 --- a/Documentation/devicetree/bindings/sram/sram.yaml +++ b/Documentation/devicetree/bindings/sram/sram.yaml @@ -34,6 +34,7 @@ properties: - nvidia,tegra186-sysram - nvidia,tegra194-sysram - nvidia,tegra234-sysram + - qcom,ipq5424-imem - qcom,kaanapali-imem - qcom,rpm-msg-ram - rockchip,rk3288-pmu-sram --=20 2.34.1