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Message-ID: <20181015130721.5535-16-kishon@ti.com>
Date: Mon, 15 Oct 2018 18:37:17 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Murali Karicheri <m-karicheri2@...com>,
Jingoo Han <jingoohan1@...il.com>,
Gustavo Pimentel <gustavo.pimentel@...opsys.com>
CC: Rob Herring <robh+dt@...nel.org>, <linux-pci@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
Kishon Vijay Abraham I <kishon@...com>
Subject: [PATCH 15/19] PCI: keystone: Cleanup set_dbi_mode and get_dbi_mode
No functional change. Use BIT() macro for DBI_CS2 and cleanup
set_dbimode and get_dbi_mode
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
drivers/pci/controller/dwc/pci-keystone.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 68b080aef3ac..7015a353a614 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -40,7 +40,7 @@
#define LTSSM_EN_VAL BIT(0)
#define LTSSM_STATE_MASK 0x1f
#define LTSSM_STATE_L0 0x11
-#define DBI_CS2_EN_VAL 0x20
+#define DBI_CS2 BIT(5)
#define OB_XLAT_EN_VAL BIT(1)
/* Application registers */
@@ -319,11 +319,12 @@ static void ks_pcie_set_dbi_mode(struct keystone_pcie *ks_pcie)
u32 val;
val = ks_pcie_app_readl(ks_pcie, CMD_STATUS);
- ks_pcie_app_writel(ks_pcie, CMD_STATUS, DBI_CS2_EN_VAL | val);
+ val |= DBI_CS2;
+ ks_pcie_app_writel(ks_pcie, CMD_STATUS, val);
do {
val = ks_pcie_app_readl(ks_pcie, CMD_STATUS);
- } while (!(val & DBI_CS2_EN_VAL));
+ } while (!(val & DBI_CS2));
}
/**
@@ -337,11 +338,12 @@ static void ks_pcie_clear_dbi_mode(struct keystone_pcie *ks_pcie)
u32 val;
val = ks_pcie_app_readl(ks_pcie, CMD_STATUS);
- ks_pcie_app_writel(ks_pcie, CMD_STATUS, ~DBI_CS2_EN_VAL & val);
+ val &= ~DBI_CS2;
+ ks_pcie_app_writel(ks_pcie, CMD_STATUS, val);
do {
val = ks_pcie_app_readl(ks_pcie, CMD_STATUS);
- } while (val & DBI_CS2_EN_VAL);
+ } while (val & DBI_CS2);
}
static void ks_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie)
--
2.17.1
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