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Sun, 15 Nov 2026 05:22:23 -0800 (PST) Received: from jernej-laptop ([2a00:ee2:6a02:9300:bb69:6bcf:1b11:e85b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-49c5d03b10fsm18406672f8f.1.2026.11.15.05.22.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Nov 2026 05:22:22 -0800 (PST) From: Jernej Skrabec To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Samuel Holland Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, Jernej Skrabec Subject: [PATCH v2 1/3] arm64: dts: allwinner: h6: orangepi: Add regulator ramp delays Date: Sun, 15 Nov 2026 14:22:12 +0100 Message-ID: <20261115132215.289236-2-jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.56.1 In-Reply-To: <20261115132215.289236-1-jernej.skrabec@gmail.com> References: <20261115132215.289236-1-jernej.skrabec@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261115_052225_482286_7508C775 X-CRM114-Status: GOOD ( 11.95 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 The vdd-cpu and vdd-gpu regulators on the Orange Pi One Plus and Lite2 have no ramp delay, and the AXP805 driver provides none either. Once DVFS is enabled, the OPP core would raise the clock rate right after setting a higher voltage, before the regulator output has settled. Add the same 2500 uV/us ramp delay that the other AXP805-based H6 boards use. Signed-off-by: Jernej Skrabec --- arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi index e34dbb992021..cbe88ee6a487 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi @@ -202,6 +202,7 @@ reg_dcdca: dcdca { regulator-always-on; regulator-min-microvolt = <810000>; regulator-max-microvolt = <1080000>; + regulator-ramp-delay = <2500>; regulator-name = "vdd-cpu"; }; @@ -209,6 +210,7 @@ reg_dcdcc: dcdcc { regulator-enable-ramp-delay = <32000>; regulator-min-microvolt = <810000>; regulator-max-microvolt = <1080000>; + regulator-ramp-delay = <2500>; regulator-name = "vdd-gpu"; }; -- 2.43.0