linux-kernel - [PATCH v2 2/3] PCI: mediatek: take use of bus->sysdata to get host private data

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Date:   Mon, 14 Aug 2017 21:04:27 +0800
From:   <honghui.zhang@...iatek.com>
To:     <bhelgaas@...gle.com>, <matthias.bgg@...il.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <yingjoe.chen@...iatek.com>, <eddie.huang@...iatek.com>,
        <ryder.lee@...iatek.com>
CC:     <honghui.zhang@...iatek.com>, <hongkun.cao@...iatek.com>,
        <youlin.pei@...iatek.com>, <yong.wu@...iatek.com>,
        <yt.shen@...iatek.com>, <sean.wang@...iatek.com>,
        <xinping.qian@...iatek.com>
Subject: [PATCH v2 2/3] PCI: mediatek: take use of bus->sysdata to get host private data

From: Honghui Zhang <honghui.zhang@...iatek.com>

Commit ae02a6dda285 ("PCI: mediatek: Add controller support for MT2712 and
MT7622") has put the mtk_pcie * into bus->sysdata, take advantage of that
to get the private data and simplify the code.

Signed-off-by: Honghui Zhang <honghui.zhang@...iatek.com>
---
 drivers/pci/host/pcie-mediatek.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c
index 946c056..acc2e28 100644
--- a/drivers/pci/host/pcie-mediatek.c
+++ b/drivers/pci/host/pcie-mediatek.c
@@ -511,8 +511,7 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
 static void __iomem *mtk_pcie_map_bus(struct pci_bus *bus,
 				      unsigned int devfn, int where)
 {
-	struct pci_host_bridge *host = pci_find_host_bridge(bus);
-	struct mtk_pcie *pcie = pci_host_bridge_priv(host);
+	struct mtk_pcie *pcie = bus->sysdata;
 
 	writel(PCIE_CONF_ADDR(where, PCI_FUNC(devfn), PCI_SLOT(devfn),
 			      bus->number), pcie->base + PCIE_CFG_ADDR);
-- 
2.6.4