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Merge "cnss: Init reserved memory device"

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QCTECMDR Service 2025-07-25 05:35:21 -07:00 • committed by Gerrit - the friendly Code Review server
commit 2a99a489c1
1 changed files with 40 additions and 0 deletions
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40
drivers/net/wireless/cnss/cnss_pci.c
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@ -31,6 +31,8 @@
#include <linux/log2.h>
#include <linux/etherdevice.h>
#include <linux/msm_pcie.h>
#include <linux/of_reserved_mem.h>
#include <linux/cma.h>
#include <soc/qcom/subsystem_restart.h>
#include <soc/qcom/subsystem_notif.h>
#include <soc/qcom/ramdump.h>
@ -1618,6 +1620,43 @@ static void cnss_pcie_reset_platform_ops(struct device *dev)
dev->platform_data = NULL;
}
#if IS_ENABLED(CONFIG_ARCH_QCOM)
/**
* cnss_pci_of_reserved_mem_device_init() - Assign reserved memory region
* to given PCI device
* @pdev: context pointer of pdev
*
* This function shall call corresponding of_reserved_mem_device* API to
* assign reserved memory region to PCI device based on where the memory is
* defined and attached to (platform device of_node or PCI device of_node)
* in device tree.
*
* Return: 0 for success, negative value for error
*/
static int cnss_pci_of_reserved_mem_device_init(struct pci_dev *pdev)
{
struct device *dev_pci = &pdev->dev;
int ret;
/* Use of_reserved_mem_device_init_by_idx() if reserved memory is
* attached to platform device of_node.
*/
ret = of_reserved_mem_device_init(dev_pci);
if (ret)
pr_err("Failed to init reserved mem device, err = %d\n",
ret);
if (dev_pci->cma_area)
pr_debug("CMA area is %s\n", cma_get_name(dev_pci->cma_area));
return ret;
}
#else
static int cnss_pci_of_reserved_mem_device_init(struct pci_dev *pdev)
{
return 0;
}
#endif
static int cnss_wlan_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@ -1634,6 +1673,7 @@ static int cnss_wlan_pci_probe(struct pci_dev *pdev,
atomic_set(&penv->fw_available, 0);
penv->device_id = pdev->device;
cnss_pci_of_reserved_mem_device_init(pdev);
if (penv->smmu_iova_len) {
ret = cnss_smmu_init(&pdev->dev);
if (ret) {