Re: [PATCH v3 3/5] arm64: dts: rockchip: Enable HDMI output on RK3368-Lion-Haikou

[Chaoyi Chen <chaoyi.chen@rock-chips.com>]

On 1/15/2026 5:35 PM, Heiko Stübner wrote:
> Hi,
> 
> Am Donnerstag, 15. Januar 2026, 02:25:34 Mitteleuropäische Normalzeit schrieb Chaoyi Chen:
>> On 1/15/2026 7:07 AM, Heiko Stuebner wrote:
>>> From: Heiko Stuebner <heiko.stuebner@cherry.de>
>>>
>>> Enable the VOP and HDMI controller on the Lion-Haikou board.
>>>
>>> Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
>>> ---
>>>  .../boot/dts/rockchip/rk3368-lion-haikou.dts     | 16 ++++++++++++++++
>>>  arch/arm64/boot/dts/rockchip/rk3368-lion.dtsi    |  5 +++++
>>>  2 files changed, 21 insertions(+)
>>>
>>
>> I guess NPLL is an independent PLL available for VOP, 
>> could you give it a try?
> 
> not really sure what you mean here.
> 
> The VOP-binding specifies the aclk, dclk and hclk clocks.
> 
> The NPLL is a possible source for quite a lot of peripherals on the rk3368
> aclk_cci_pre,  sclk_tcp, vepu/vdpu, hevc, isp, gpu, gmac
> 
> So it's definitly not dedicated to the VOP, and thus should not
> change frequency for the VOP alone, because that could affect
> other blocks.
> 
> 
> Heiko

Oh, you are right. It is a general purpose PLL.

-- 
Best, 
Chaoyi