Re: [PATCH v4] schemas: pci: Document PCIe T_POWER_ON
From: Rob Herring
Date: Thu Feb 19 2026 - 08:45:44 EST
On Thu, Feb 05, 2026 at 03:03:46PM +0530, Krishna Chaitanya Chundru wrote:
> >From PCIe r7, sec 5.5.4 & Table 5-11 in sec 5.5.5 T_POWER_ON is the
> minimum amount of time (in us) that each component must wait in L1.2.Exit
> after sampling CLKREQ# asserted before actively driving the interface to
> ensure no device is ever actively driving into an unpowered component and
> these values are based on the components and AC coupling capacitors used
> in the connection linking the two components.
>
> This property should be used to indicate the T_POWER_ON and drivers using
> this property are responsible for programming both the scale and the value
> of T_POWER_ON to comply with the PCIe specification.
>
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>
> Acked-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
Applied, thanks.