Re: [PATCH 0/2] Khadas VIM4 PWM status LED support

[Neil Armstrong <neil.armstrong@linaro.org>]

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 <linux-kernel-dev@aliel.fr>
> ---
> 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