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

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Message-Id: <20240104130123.37115-4-brgl@bgdev.pl>
Date: Thu,  4 Jan 2024 14:01:17 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: 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: [RFC 3/9] PCI/portdrv: create platform devices for child OF nodes

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
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)
-- 
2.40.1