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path: root/drivers/pci/controller/pcie-rcar-host.c
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Diffstat (limited to 'drivers/pci/controller/pcie-rcar-host.c')
-rw-r--r--drivers/pci/controller/pcie-rcar-host.c42
1 files changed, 16 insertions, 26 deletions
diff --git a/drivers/pci/controller/pcie-rcar-host.c b/drivers/pci/controller/pcie-rcar-host.c
index fe288fd770c4..213028052aa5 100644
--- a/drivers/pci/controller/pcie-rcar-host.c
+++ b/drivers/pci/controller/pcie-rcar-host.c
@@ -12,6 +12,7 @@
*/
#include <linux/bitops.h>
+#include <linux/cleanup.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/delay.h>
@@ -38,7 +39,7 @@ struct rcar_msi {
DECLARE_BITMAP(used, INT_PCI_MSI_NR);
struct irq_domain *domain;
struct mutex map_lock;
- spinlock_t mask_lock;
+ raw_spinlock_t mask_lock;
int irq1;
int irq2;
};
@@ -52,20 +53,13 @@ struct rcar_pcie_host {
int (*phy_init_fn)(struct rcar_pcie_host *host);
};
-static DEFINE_SPINLOCK(pmsr_lock);
-
static int rcar_pcie_wakeup(struct device *pcie_dev, void __iomem *pcie_base)
{
- unsigned long flags;
u32 pmsr, val;
int ret = 0;
- spin_lock_irqsave(&pmsr_lock, flags);
-
- if (!pcie_base || pm_runtime_suspended(pcie_dev)) {
- ret = -EINVAL;
- goto unlock_exit;
- }
+ if (!pcie_base || pm_runtime_suspended(pcie_dev))
+ return -EINVAL;
pmsr = readl(pcie_base + PMSR);
@@ -87,8 +81,6 @@ static int rcar_pcie_wakeup(struct device *pcie_dev, void __iomem *pcie_base)
writel(L1FAEG | PMEL1RX, pcie_base + PMSR);
}
-unlock_exit:
- spin_unlock_irqrestore(&pmsr_lock, flags);
return ret;
}
@@ -584,7 +576,7 @@ static irqreturn_t rcar_pcie_msi_irq(int irq, void *data)
unsigned int index = find_first_bit(&reg, 32);
int ret;
- ret = generic_handle_domain_irq(msi->domain->parent, index);
+ ret = generic_handle_domain_irq(msi->domain, index);
if (ret) {
/* Unknown MSI, just clear it */
dev_dbg(dev, "unexpected MSI\n");
@@ -611,28 +603,26 @@ static void rcar_msi_irq_mask(struct irq_data *d)
{
struct rcar_msi *msi = irq_data_get_irq_chip_data(d);
struct rcar_pcie *pcie = &msi_to_host(msi)->pcie;
- unsigned long flags;
u32 value;
- spin_lock_irqsave(&msi->mask_lock, flags);
- value = rcar_pci_read_reg(pcie, PCIEMSIIER);
- value &= ~BIT(d->hwirq);
- rcar_pci_write_reg(pcie, value, PCIEMSIIER);
- spin_unlock_irqrestore(&msi->mask_lock, flags);
+ scoped_guard(raw_spinlock_irqsave, &msi->mask_lock) {
+ value = rcar_pci_read_reg(pcie, PCIEMSIIER);
+ value &= ~BIT(d->hwirq);
+ rcar_pci_write_reg(pcie, value, PCIEMSIIER);
+ }
}
static void rcar_msi_irq_unmask(struct irq_data *d)
{
struct rcar_msi *msi = irq_data_get_irq_chip_data(d);
struct rcar_pcie *pcie = &msi_to_host(msi)->pcie;
- unsigned long flags;
u32 value;
- spin_lock_irqsave(&msi->mask_lock, flags);
- value = rcar_pci_read_reg(pcie, PCIEMSIIER);
- value |= BIT(d->hwirq);
- rcar_pci_write_reg(pcie, value, PCIEMSIIER);
- spin_unlock_irqrestore(&msi->mask_lock, flags);
+ scoped_guard(raw_spinlock_irqsave, &msi->mask_lock) {
+ value = rcar_pci_read_reg(pcie, PCIEMSIIER);
+ value |= BIT(d->hwirq);
+ rcar_pci_write_reg(pcie, value, PCIEMSIIER);
+ }
}
static void rcar_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
@@ -745,7 +735,7 @@ static int rcar_pcie_enable_msi(struct rcar_pcie_host *host)
int err;
mutex_init(&msi->map_lock);
- spin_lock_init(&msi->mask_lock);
+ raw_spin_lock_init(&msi->mask_lock);
err = of_address_to_resource(dev->of_node, 0, &res);
if (err)