linux-kernel - [PATCH v2 15/20] PCI: imx6: Pass data to dw_pcie_writel

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Message-Id: <20190104174925.17153-16-andrew.smirnov@gmail.com>
Date:   Fri,  4 Jan 2019 09:49:20 -0800
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     linux-pci@...r.kernel.org
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Fabio Estevam <fabio.estevam@....com>,
        Chris Healy <cphealy@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Leonard Crestez <leonard.crestez@....com>,
        "A.s. Dong" <aisheng.dong@....com>,
        Richard Zhu <hongxing.zhu@....com>, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 15/20] PCI: imx6: Pass data to dw_pcie_writel_dbi() directly

Save a couple of lines of code by dropping assignement to 'var' and
passing constants as via function arguments directly. No functional
change intended.

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Fabio Estevam <fabio.estevam@....com>
Cc: Chris Healy <cphealy@...il.com>
Cc: Lucas Stach <l.stach@...gutronix.de>
Cc: Leonard Crestez <leonard.crestez@....com>
Cc: "A.s. Dong" <aisheng.dong@....com>
Cc: Richard Zhu <hongxing.zhu@....com>
Cc: linux-imx@....com
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-pci@...r.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
---
 drivers/pci/controller/dwc/pci-imx6.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 02342b1762fa..befbc09c9c41 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -172,7 +172,6 @@ static int pcie_phy_wait_ack(struct imx6_pcie *imx6_pcie, int addr)
 static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
 {
 	struct dw_pcie *pci = imx6_pcie->pci;
-	u32 phy_ctl;
 	int ret;
 
 	ret = pcie_phy_wait_ack(imx6_pcie, addr);
@@ -180,8 +179,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
 		return ret;
 
 	/* assert Read signal */
-	phy_ctl = PCIE_PHY_CTRL_RD;
-	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, phy_ctl);
+	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, PCIE_PHY_CTRL_RD);
 
 	ret = pcie_phy_poll_ack(imx6_pcie, 1);
 	if (ret)
@@ -219,8 +217,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 		return ret;
 
 	/* deassert cap data */
-	var = PCIE_PHY_CTRL_DATA(data);
-	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
+	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, PCIE_PHY_CTRL_DATA(data));
 
 	/* wait for ack de-assertion */
 	ret = pcie_phy_poll_ack(imx6_pcie, 0);
@@ -228,8 +225,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 		return ret;
 
 	/* assert wr signal */
-	var = PCIE_PHY_CTRL_WR;
-	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
+	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, PCIE_PHY_CTRL_WR);
 
 	/* wait for ack */
 	ret = pcie_phy_poll_ack(imx6_pcie, 1);
@@ -237,8 +233,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 		return ret;
 
 	/* deassert wr signal */
-	var = PCIE_PHY_CTRL_DATA(data);
-	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
+	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, PCIE_PHY_CTRL_DATA(data));
 
 	/* wait for ack de-assertion */
 	ret = pcie_phy_poll_ack(imx6_pcie, 0);
-- 
2.20.1