linux-kernel - Re: [PATCH 3/4] PCI: cadence-ep: Introduce cdns_pcie_ep

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Message-ID: <20250318080304.jsmrxqil6pn74nzh@thinkpad>
Date: Tue, 18 Mar 2025 13:33:04 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Siddharth Vadapalli <s-vadapalli@...com>
Cc: lpieralisi@...nel.org, kw@...ux.com, robh@...nel.org,
	bhelgaas@...gle.com, vigneshr@...com, kishon@...nel.org,
	cassel@...nel.org, wojciech.jasko-EXT@...tinental-corporation.com,
	thomas.richard@...tlin.com, bwawrzyn@...co.com,
	linux-pci@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	srk@...com
Subject: Re: [PATCH 3/4] PCI: cadence-ep: Introduce cdns_pcie_ep_disable
 helper for cleanup

On Fri, Mar 07, 2025 at 04:01:27PM +0530, Siddharth Vadapalli wrote:
> Introduce the helper function cdns_pcie_ep_disable() which will undo the
> configuration performed by cdns_pcie_ep_setup(). Also, export it for use
> by the existing callers of cdns_pcie_ep_setup(), thereby allowing them
> to cleanup on their exit path.
> 
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
> ---
>  drivers/pci/controller/cadence/pcie-cadence-ep.c | 10 ++++++++++
>  drivers/pci/controller/cadence/pcie-cadence.h    |  5 +++++
>  2 files changed, 15 insertions(+)
> 
> diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> index eeb2afdd223e..85bec57fa5d9 100644
> --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c
> +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c
> @@ -646,6 +646,16 @@ static const struct pci_epc_ops cdns_pcie_epc_ops = {
>  	.get_features	= cdns_pcie_ep_get_features,
>  };
>  
> +void cdns_pcie_ep_disable(struct cdns_pcie_ep *ep)
> +{
> +	struct device *dev = ep->pcie.dev;
> +	struct pci_epc *epc = to_pci_epc(dev);
> +

pci_epc_deinit_notify()

- Mani

-- 
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