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[178.202.227.16]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47d8717d9e7sm71779475e9.8.2026.01.09.17.07.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Jan 2026 17:07:31 -0800 (PST) From: Marco Schirrmeister To: heiko@sntech.de, ulf.hansson@linaro.org Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-rockchip@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Marco Schirrmeister Subject: [PATCH v1 3/3] arm64: dts: rockchip: add stability quirk to NanoPi R76S Date: Sat, 10 Jan 2026 02:07:15 +0100 Message-ID: <20260110010715.1610159-4-mschirrmeister@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260110010715.1610159-1-mschirrmeister@gmail.com> References: <20260110010715.1610159-1-mschirrmeister@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260109_170733_822885_1941318A X-CRM114-Status: UNSURE ( 9.96 ) X-CRM114-Notice: Please train this message. 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 Enable the 'rockchip,disable-runtime-pm' quirk for the SDMMC node on the NanoPi R76S to prevent bus instability and retraining loops during idle periods. Signed-off-by: Marco Schirrmeister --- arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts index 31fbefaeceab..90a798ee9e68 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-r76s.dts @@ -754,6 +754,7 @@ &sdmmc { disable-wp; no-mmc; no-sdio; + rockchip,disable-runtime-pm; sd-uhs-sdr104; vmmc-supply = <&vcc_3v3_s3>; vqmmc-supply = <&vccio_sd_s0>; -- 2.52.0