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Mon, 21 Sep 2026 11:26:34 -0700 (PDT) Received: from dev-ag.figment.co.za ([192.145.132.58]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4872446067asm25126184f8f.12.2026.09.21.11.26.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Sep 2026 11:26:32 -0700 (PDT) From: Andrew Gaylard To: linux-arm-kernel@lists.infradead.org Cc: devicetree@vger.kernel.org, qinjian@cqplus1.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux@armlinux.org.uk, Andrew Gaylard Subject: [PATCH v3 0/6] arm: sunplus: add Tibbo LTPP3G2 board support Date: Mon, 21 Sep 2026 20:26:14 +0200 Message-ID: <20260921182620.17597-1-ag@ffroot.co.za> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The Tibbo LTPP3G2 is a board based on the Sunplus SP7021 SoC: https://tibbo.com/store/tps/ltpp3g2.html It is the platform that underpins Tibbo's industrial IoT products. This series adds board support to linux-next: - Patch 1: vendor prefix for Tibbo Technology. - Patch 2: document tibbo,ltpp3g2 compatible string in the SP7021 board binding. - Patch 3: add device tree nodes for SP7021 peripherals that have drivers (PWM, watchdog, eMMC), plus a label on the gpio-leds node so board DTS files can override it. - Patch 4: enable SMP via PSCI 0.2 (HVC) on the SP7021. - Patch 5: add the board DTS for the LTPP3G2, covering eMMC, a bit-banged I2C bus, PWM, watchdog, and two GPIO LEDs. - Patch 6: update sp7021_defconfig to enable the drivers used by the LTPP3G2 and correct a few defaults. Tested on LTPP3G2 hardware on linux-next-20260916. Changes in v3: - fix problems noted by Krzysztof Kozlowski - put the Tibbo vendor prefix in correct alphabetical order - remove bootargs from chosen - name DTS nodes correctly - fix problems reported by sashiko-bot - add tibbo,ltpp3g2 compatible string to sunplus,sp7021.yaml - rename i2c_tps to i2c - rename system-led to led-0 - rename sg-led to led-1 - add the missing pinmux node: pins_uart3 - fix pins_i2ctps: use SPPCTL_PCTL_L_OU1|ODR, not L_OUT|ONV|ODR - fix pins_btuart: remove SPPCTL_PCTL_L_ONV from BT UART RTS - don't disable CONFIG_SMP, instead enable CONFIG_ARM_PSCI and add psci to sunplus-sp7021-achip.dtsi - increase i2c-gpio,delay-us from 1 to 5 Changes in v2: - fix issues spotted by sashiko-bot. Andrew Gaylard (6): dt-bindings: vendor-prefixes: Add Tibbo dt-bindings: arm: sunplus: add Tibbo LTPP3G2 board compatible string arm: dts: sunplus: add PWM, watchdog and MMC nodes to SP7021 DTSI arm: sunplus: enable SMP via PSCI on SP7021 arm: dts: sunplus: add Tibbo LTPP3G2 board configs: sp7021: fix defaults and enable existing device drivers .../bindings/arm/sunplus,sp7021.yaml | 2 + .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 6 + arch/arm/boot/dts/sunplus/Makefile | 5 +- .../dts/sunplus/sunplus-sp7021-achip.dtsi | 9 + .../dts/sunplus/sunplus-sp7021-ltpp3g2.dts | 183 ++++++++++++++++++ arch/arm/boot/dts/sunplus/sunplus-sp7021.dtsi | 39 +++- arch/arm/configs/sp7021_defconfig | 32 +++ 8 files changed, 273 insertions(+), 5 deletions(-) create mode 100644 arch/arm/boot/dts/sunplus/sunplus-sp7021-ltpp3g2.dts -- 2.53.0