linux-kernel - Re: [RFC 3/9] PCI/portdrv: create platform devices for child OF nodes

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Date: Fri, 5 Jan 2024 17:05:55 -0800
From: Jeff Johnson <quic_jjohnson@...cinc.com>
To: Bartosz Golaszewski <brgl@...ev.pl>, Kalle Valo <kvalo@...nel.org>,
        "David
 S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub
 Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Rob Herring
	<robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will
 Deacon <will@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Heiko Stuebner
	<heiko@...ech.de>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Chris Morgan
	<macromorgan@...mail.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Geert
 Uytterhoeven <geert+renesas@...der.be>,
        Arnd Bergmann <arnd@...db.de>,
        Neil
 Armstrong <neil.armstrong@...aro.org>,
        Nícolas F . R . A . Prado <nfraprado@...labora.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Peng Fan <peng.fan@....com>, Robert Richter <rrichter@....com>,
        Dan Williams <dan.j.williams@...el.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Terry Bowman
	<terry.bowman@....com>,
        Kuppuswamy Sathyanarayanan
	<sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Ilpo Järvinen
	<ilpo.jarvinen@...ux.intel.com>,
        Huacai Chen <chenhuacai@...nel.org>, Alex
 Elder <elder@...aro.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: <linux-wireless@...r.kernel.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        Bartosz Golaszewski
	<bartosz.golaszewski@...aro.org>
Subject: Re: [RFC 3/9] PCI/portdrv: create platform devices for child OF nodes

On 1/4/2024 5:01 AM, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> In order to introduce PCIe power-sequencing, we need to create platform
> devices for child nodes of the port driver node. They will get matched
> against the pwrseq drivers (if one exists) and then the actuak PCIe

nit if you re-spin: s/actuak /actual /

> device will reuse the node once it's detected on the bus.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  drivers/pci/pcie/portdrv.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/pcie/portdrv.c b/drivers/pci/pcie/portdrv.c
> index 14a4b89a3b83..401fb731009d 100644
> --- a/drivers/pci/pcie/portdrv.c
> +++ b/drivers/pci/pcie/portdrv.c
> @@ -13,6 +13,7 @@
>  #include <linux/pci.h>
>  #include <linux/kernel.h>
>  #include <linux/errno.h>
> +#include <linux/of_platform.h>
>  #include <linux/pm.h>
>  #include <linux/pm_runtime.h>
>  #include <linux/string.h>
> @@ -715,7 +716,7 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
>  		pm_runtime_allow(&dev->dev);
>  	}
>  
> -	return 0;
> +	return devm_of_platform_populate(&dev->dev);
>  }
>  
>  static void pcie_portdrv_remove(struct pci_dev *dev)