linux-kernel - Re: [PATCH v9 4/7] PCI: dwc: Implement .assert

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Message-ID: <bkromhlltdhbmrmhc6w3knrwrs6pi3nhya7mg6odg6ihkzimza@e2huxtvqajxn>
Date: Sat, 1 Nov 2025 10:36:45 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>, 
	Lorenzo Pieralisi <lpieralisi@...nel.org>, Krzysztof Wilczyński <kwilczynski@...nel.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Jingoo Han <jingoohan1@...il.com>, 
	Bartosz Golaszewski <brgl@...ev.pl>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, cros-qcom-dts-watchers@...omium.org, linux-pci@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v9 4/7] PCI: dwc: Implement .assert_perst() hook

On Sat, Nov 01, 2025 at 09:29:35AM +0530, Krishna Chaitanya Chundru wrote:
> Implement assert_perst() function op for dwc drivers.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>

This and the previous patch should be squashed. But no need to resend just for
this change, as this could be handled while applying.

Acked-by: Manivannan Sadhasivam <mani@...nel.org>

- Mani

> ---
>  drivers/pci/controller/dwc/pcie-designware-host.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
> index 20c9333bcb1c4812e2fd96047a49944574df1e6f..b56dd1d51fa4f03931942dc9da649bef8859f192 100644
> --- a/drivers/pci/controller/dwc/pcie-designware-host.c
> +++ b/drivers/pci/controller/dwc/pcie-designware-host.c
> @@ -842,10 +842,19 @@ void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus, unsigned int devfn,
>  }
>  EXPORT_SYMBOL_GPL(dw_pcie_own_conf_map_bus);
>  
> +static int dw_pcie_op_assert_perst(struct pci_bus *bus, bool assert)
> +{
> +	struct dw_pcie_rp *pp = bus->sysdata;
> +	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
> +
> +	return dw_pcie_assert_perst(pci, assert);
> +}
> +
>  static struct pci_ops dw_pcie_ops = {
>  	.map_bus = dw_pcie_own_conf_map_bus,
>  	.read = pci_generic_config_read,
>  	.write = pci_generic_config_write,
> +	.assert_perst = dw_pcie_op_assert_perst,
>  };
>  
>  static int dw_pcie_iatu_setup(struct dw_pcie_rp *pp)
> 
> -- 
> 2.34.1
> 

-- 
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