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19 Feb 2025 14:03:14 +0000 (GMT) From: Michal Wilczynski To: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, drew@pdp7.com, guoren@kernel.org, wefu@redhat.com, jassisinghbrar@gmail.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, frank.binns@imgtec.com, matt.coster@imgtec.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, ulf.hansson@linaro.org, jszhang@kernel.org, p.zabel@pengutronix.de, m.szyprowski@samsung.com Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org, Michal Wilczynski Subject: [PATCH v5 19/21] riscv: dts: thead: Introduce power domain nodes with aon firmware Date: Wed, 19 Feb 2025 15:02:37 +0100 Message-Id: <20250219140239.1378758-20-m.wilczynski@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: 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CMS-TYPE: 201P X-CMS-RootMailID: 20250219140315eucas1p10f08d297580edd114f4c487c1fbffa8d References: <20250219140239.1378758-1-m.wilczynski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250219_060318_259164_48459216 X-CRM114-Status: GOOD ( 11.07 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The DRM Imagination GPU requires a power-domain driver. In the T-HEAD TH1520 SoC implements power management capabilities through the E902 core, which can be communicated with through the mailbox, using firmware protocol. Add AON node, which servers as a power-domain controller. Signed-off-by: Michal Wilczynski --- arch/riscv/boot/dts/thead/th1520.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi index 197df1f32b25..474f31576a1b 100644 --- a/arch/riscv/boot/dts/thead/th1520.dtsi +++ b/arch/riscv/boot/dts/thead/th1520.dtsi @@ -6,6 +6,7 @@ #include #include +#include / { compatible = "thead,th1520"; @@ -229,6 +230,13 @@ stmmac_axi_config: stmmac-axi-config { snps,blen = <0 0 64 32 0 0 0>; }; + aon: aon { + compatible = "thead,th1520-aon"; + mboxes = <&mbox_910t 1>; + mbox-names = "aon"; + #power-domain-cells = <1>; + }; + soc { compatible = "simple-bus"; interrupt-parent = <&plic>;