[PATCH] PCI: controller: use dev_fwnode()

["Jiri Slaby (SUSE)" <jirislaby@kernel.org>]

All irq_domain functions now accept fwnode instead of of_node. But many
PCI controllers still extract dev to of_node and then of_node to fwnode.

Instead, clean this up and simply use the dev_fwnode() helper to extract
fwnode directly from dev. Internally, it still does dev => of_node =>
fwnode steps, but it's now hidden from the users.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/all/4ee9c7c0-4a3f-4afa-ae5a-7fd8a750c92b@kernel.org/
Link: https://lore.kernel.org/all/4bc0e1ca-a523-424a-8759-59e353317fba@kernel.org/
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Manivannan Sadhasivam <mani@kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: "Krzysztof Wilczyński" <kwilczynski@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Cc: Joyce Ooi <joyce.ooi@intel.com>
Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Jianjun Wang <jianjun.wang@mediatek.com>
Cc: Michal Simek <michal.simek@amd.com>
Cc: Daire McNamara <daire.mcnamara@microchip.com>
---
Cc: linux-pci@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/pci/controller/dwc/pcie-designware-host.c    | 3 +--
 drivers/pci/controller/mobiveil/pcie-mobiveil-host.c | 3 +--
 drivers/pci/controller/pcie-altera-msi.c             | 3 +--
 drivers/pci/controller/pcie-mediatek.c               | 4 +---
 drivers/pci/controller/pcie-xilinx-dma-pl.c          | 3 +--
 drivers/pci/controller/pcie-xilinx-nwl.c             | 3 +--
 drivers/pci/controller/plda/pcie-plda-host.c         | 3 +--
 7 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 4af7da14b350..952f8594b501 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -214,9 +214,8 @@ static const struct irq_domain_ops dw_pcie_msi_domain_ops = {
 int dw_pcie_allocate_domains(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-	struct fwnode_handle *fwnode = of_fwnode_handle(pci->dev->of_node);
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(pci->dev),
 		.ops		= &dw_pcie_msi_domain_ops,
 		.size		= pp->num_vectors,
 		.host_data	= pp,
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
index d17e887b6b61..dbc72c73fd0a 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
@@ -439,13 +439,12 @@ static const struct irq_domain_ops msi_domain_ops = {
 static int mobiveil_allocate_msi_domains(struct mobiveil_pcie *pcie)
 {
 	struct device *dev = &pcie->pdev->dev;
-	struct fwnode_handle *fwnode = of_fwnode_handle(dev->of_node);
 	struct mobiveil_msi *msi = &pcie->rp.msi;
 
 	mutex_init(&msi->lock);
 
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(dev),
 		.ops		= &msi_domain_ops,
 		.host_data	= pcie,
 		.size		= msi->num_of_vectors,
diff --git a/drivers/pci/controller/pcie-altera-msi.c b/drivers/pci/controller/pcie-altera-msi.c
index 2e48acd632c5..ea2ca2e70f20 100644
--- a/drivers/pci/controller/pcie-altera-msi.c
+++ b/drivers/pci/controller/pcie-altera-msi.c
@@ -166,9 +166,8 @@ static const struct irq_domain_ops msi_domain_ops = {
 
 static int altera_allocate_domains(struct altera_msi *msi)
 {
-	struct fwnode_handle *fwnode = of_fwnode_handle(msi->pdev->dev.of_node);
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(&msi->pdev->dev),
 		.ops		= &msi_domain_ops,
 		.host_data	= msi,
 		.size		= msi->num_of_vectors,
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 3ac5d14dd543..24cc30a2ab6c 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -487,12 +487,10 @@ static const struct msi_parent_ops mtk_msi_parent_ops = {
 
 static int mtk_pcie_allocate_msi_domains(struct mtk_pcie_port *port)
 {
-	struct fwnode_handle *fwnode = of_fwnode_handle(port->pcie->dev->of_node);
-
 	mutex_init(&port->lock);
 
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(port->pcie->dev),
 		.ops		= &msi_domain_ops,
 		.host_data	= port,
 		.size		= MTK_MSI_IRQS_NUM,
diff --git a/drivers/pci/controller/pcie-xilinx-dma-pl.c b/drivers/pci/controller/pcie-xilinx-dma-pl.c
index fbc379fd118b..b037c8f315e4 100644
--- a/drivers/pci/controller/pcie-xilinx-dma-pl.c
+++ b/drivers/pci/controller/pcie-xilinx-dma-pl.c
@@ -465,9 +465,8 @@ static int xilinx_pl_dma_pcie_init_msi_irq_domain(struct pl_dma_pcie *port)
 	struct device *dev = port->dev;
 	struct xilinx_msi *msi = &port->msi;
 	int size = BITS_TO_LONGS(XILINX_NUM_MSI_IRQS) * sizeof(long);
-	struct fwnode_handle *fwnode = of_fwnode_handle(port->dev->of_node);
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(port->dev),
 		.ops		= &dev_msi_domain_ops,
 		.host_data	= port,
 		.size		= XILINX_NUM_MSI_IRQS,
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index de76c836915f..05b8c205493c 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -498,10 +498,9 @@ static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
 {
 #ifdef CONFIG_PCI_MSI
 	struct device *dev = pcie->dev;
-	struct fwnode_handle *fwnode = of_fwnode_handle(dev->of_node);
 	struct nwl_msi *msi = &pcie->msi;
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(dev),
 		.ops		= &dev_msi_domain_ops,
 		.host_data	= pcie,
 		.size		= INT_PCI_MSI_NR,
diff --git a/drivers/pci/controller/plda/pcie-plda-host.c b/drivers/pci/controller/plda/pcie-plda-host.c
index 92866840875e..8e2db2e5b64b 100644
--- a/drivers/pci/controller/plda/pcie-plda-host.c
+++ b/drivers/pci/controller/plda/pcie-plda-host.c
@@ -153,13 +153,12 @@ static const struct msi_parent_ops plda_msi_parent_ops = {
 static int plda_allocate_msi_domains(struct plda_pcie_rp *port)
 {
 	struct device *dev = port->dev;
-	struct fwnode_handle *fwnode = of_fwnode_handle(dev->of_node);
 	struct plda_msi *msi = &port->msi;
 
 	mutex_init(&port->msi.lock);
 
 	struct irq_domain_info info = {
-		.fwnode		= fwnode,
+		.fwnode		= dev_fwnode(dev),
 		.ops		= &msi_domain_ops,
 		.host_data	= port,
 		.size		= msi->num_vectors,
-- 
2.50.1