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Message-Id: <20211103184939.45263-4-jim2101024@gmail.com>
Date: Wed, 3 Nov 2021 14:49:33 -0400
From: Jim Quinlan <jim2101024@...il.com>
To: linux-pci@...r.kernel.org,
Nicolas Saenz Julienne <nsaenz@...nel.org>,
Rob Herring <robh@...nel.org>, Mark Brown <broonie@...nel.org>,
bcm-kernel-feedback-list@...adcom.com, jim2101024@...il.com,
james.quinlan@...adcom.com
Cc: Florian Fainelli <f.fainelli@...il.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Krzysztof WilczyĆski <kw@...ux.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE),
linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM
BCM2711/BCM2835 ARM ARCHITECTURE),
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v7 3/7] PCI: brcmstb: Split brcm_pcie_setup() into two funcs
We need to split a function in two so that the driver can take advantage of
the recently added function pci_subdev_prepare() which is a member
of struct pci_host_bridge.
Signed-off-by: Jim Quinlan <jim2101024@...il.com>
---
drivers/pci/controller/pcie-brcmstb.c | 30 +++++++++++++++++++--------
1 file changed, 21 insertions(+), 9 deletions(-)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index cc30215f5a43..ba4d6daf312c 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -863,17 +863,10 @@ static inline int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
static int brcm_pcie_setup(struct brcm_pcie *pcie)
{
- struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
u64 rc_bar2_offset, rc_bar2_size;
void __iomem *base = pcie->base;
- struct device *dev = pcie->dev;
- struct resource_entry *entry;
- bool ssc_good = false;
- struct resource *res;
- int num_out_wins = 0;
- u16 nlw, cls, lnksta;
- int i, ret, memc;
- u32 tmp, burst, aspm_support;
+ int ret, memc;
+ u32 tmp, burst;
/* Reset the bridge */
pcie->bridge_sw_init_set(pcie, 1);
@@ -956,6 +949,21 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
if (pcie->gen)
brcm_pcie_set_gen(pcie, pcie->gen);
+ return 0;
+}
+
+static int brcm_pcie_linkup(struct brcm_pcie *pcie)
+{
+ struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
+ struct device *dev = pcie->dev;
+ void __iomem *base = pcie->base;
+ struct resource_entry *entry;
+ struct resource *res;
+ int num_out_wins = 0;
+ u16 nlw, cls, lnksta;
+ bool ssc_good = false;
+ u32 aspm_support, tmp;
+ int ret, i;
/* Unassert the fundamental reset */
pcie->perst_set(pcie, 0);
@@ -1186,6 +1194,10 @@ static int brcm_pcie_resume(struct device *dev)
if (ret)
goto err_reset;
+ ret = brcm_pcie_linkup(pcie);
+ if (ret)
+ goto err_reset;
+
if (pcie->msi)
brcm_msi_set_regs(pcie->msi);
--
2.17.1
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