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([2a01:e0a:106d:1080:6ee4:8e37:145:d60b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45c7f27762csm3558455f8f.31.2026.05.13.01.29.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 13 May 2026 01:29:51 -0700 (PDT) Message-ID: <890de4b9-5481-44ab-adfd-0c58d9ae8239@linaro.org> Date: Wed, 13 May 2026 10:29:50 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Reply-To: Neil Armstrong Subject: Re: [PATCH 0/2] Khadas VIM4 PWM status LED support To: linux-kernel-dev@aliel.fr, Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260512-add-kvim4-sysled-v1-0-7178719a43e7@aliel.fr> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260512-add-kvim4-sysled-v1-0-7178719a43e7@aliel.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/12/26 19:47, Ronald Claveau via B4 Relay wrote: > This series adds support for the PWM-driven status LED on the Khadas > VIM4 board (Amlogic T7). > > The VIM4 exposes a heartbeat LED wired to the PWM_AO_C output, routed > through pin group pwm_ao_c_d. Before wiring it up in the board DTS, > the SoC pinmux definitions had to be corrected: the original > pwm_ao_c node was conflating two distinct pin groups (pwm_ao_c_d and > pwm_ao_c_e) into a single ambiguous entry. > > Patch 1 fixes the pwm_ao_c pinmux entries in the T7 DTSI by splitting > them into two properly named nodes. Neither alternate is in use yet, > so there is no functional impact on existing boards. > > Patch 2 enables the pwm_ao_cd controller on the VIM4 and adds a > pwm-leds node with a heartbeat trigger. The xtal-clk node is also > moved to restore alphabetical ordering among root node children. > > Signed-off-by: Ronald Claveau > --- > Ronald Claveau (2): > arm64: dts: amlogic: t7: Fix pwm_ao_c pinmux definitions > arm64: dts: amlogic: t7: khadas-vim4: add PWM-driven status LED > > .../dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts | 30 +++++++++++++++++----- > arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 12 +++++++-- > 2 files changed, 33 insertions(+), 9 deletions(-) > --- > base-commit: 31f32e8cdf59291e467250dfc57d1a8c718f63d2 > change-id: 20260512-add-kvim4-sysled-8cc159524561 > > Best regards, Squashed patch 1 on ee6e05a49b93 ("arm64: dts: amlogic: t7: Add PWM pinctrl nodes") Neil