A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "msm: pcie: Disable masking MSI interrupts at EP"

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qctecmdr 2021-03-27 02:51:47 -07:00 • committed by Gerrit - the friendly Code Review server
commit 357205e829
1 changed files with 9 additions and 2 deletions
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11
drivers/pci/controller/pci-msm-msi.c
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@ -63,6 +63,7 @@ struct msm_msi {
phys_addr_t msi_addr;
u32 msi_addr_size;
enum msi_type type;
bool msi_mask_disable;
spinlock_t cfg_lock; /* lock for configuring Synopsys MSI registers */
bool cfg_access; /* control access to MSI registers */
void __iomem *pcie_cfg;
@ -162,7 +163,7 @@ static void msm_msi_mask_irq(struct irq_data *data)
msi = msi_irq->client->msi;
spin_lock_irqsave(&msi->cfg_lock, flags);
if (msi->cfg_access)
if (!msi->msi_mask_disable && msi->cfg_access)
pci_msi_mask_irq(data);
spin_unlock_irqrestore(&msi->cfg_lock, flags);
@ -213,7 +214,7 @@ static void msm_msi_unmask_irq(struct irq_data *data)
msi->unmask_irq(parent_data);
spin_lock_irqsave(&msi->cfg_lock, flags);
if (msi->cfg_access)
if (!msi->msi_mask_disable && msi->cfg_access)
pci_msi_unmask_irq(data);
spin_unlock_irqrestore(&msi->cfg_lock, flags);
}
@ -665,6 +666,12 @@ int msm_msi_init(struct device *dev)
mutex_init(&msi->mutex);
spin_lock_init(&msi->cfg_lock);
INIT_LIST_HEAD(&msi->clients);
msi->msi_mask_disable = of_property_read_bool(dev->of_node,
"qcom,msi_mask_disable");
if (msi->msi_mask_disable)
pr_warn("MSI interrupts mask disabled:%d\n",
msi->msi_mask_disable);
prop_val = of_get_address(msi->of_node, 0, NULL, NULL);
if (!prop_val) {