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PCI: dwc: Pass DWC PCIe mode to dwc_pcie_debugfs_init()

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Upcoming PTM debugfs interface relies on the DWC PCIe mode to expose the
relevant debugfs attributes to userspace. So pass the mode to
dwc_pcie_debugfs_init() API from host and ep drivers and save it in
'struct dw_pcie::mode'.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Link: https://patch.msgid.link/20250505-pcie-ptm-v4-2-02d26d51400b@linaro.org
This commit is contained in:
Manivannan Sadhasivam 2025-05-05 19:54:40 +05:30 committed by Krzysztof Wilczyński
parent 132833405e
commit 87a9d0cd67
No known key found for this signature in database
GPG Key ID: 7C64768D3DE334E7
4 changed files with 9 additions and 5 deletions
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4
drivers/pci/controller/dwc/pcie-designware-debugfs.c
View File

@ -651,7 +651,7 @@ void dwc_pcie_debugfs_deinit(struct dw_pcie *pci)
debugfs_remove_recursive(pci->debugfs->debug_dir);
}
void dwc_pcie_debugfs_init(struct dw_pcie *pci)
void dwc_pcie_debugfs_init(struct dw_pcie *pci, enum dw_pcie_device_mode mode)
{
char dirname[DWC_DEBUGFS_BUF_MAX];
struct device *dev = pci->dev;
@ -674,4 +674,6 @@ void dwc_pcie_debugfs_init(struct dw_pcie *pci)
err);
dwc_pcie_ltssm_debugfs_init(pci, dir);
pci->mode = mode;
}

2
drivers/pci/controller/dwc/pcie-designware-ep.c
View File

@ -1013,7 +1013,7 @@ int dw_pcie_ep_init_registers(struct dw_pcie_ep *ep)
dw_pcie_ep_init_non_sticky_registers(pci);
dwc_pcie_debugfs_init(pci);
dwc_pcie_debugfs_init(pci, DW_PCIE_EP_TYPE);
return 0;

2
drivers/pci/controller/dwc/pcie-designware-host.c
View File

@ -567,7 +567,7 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp)
if (pp->ops->post_init)
pp->ops->post_init(pp);
dwc_pcie_debugfs_init(pci);
dwc_pcie_debugfs_init(pci, DW_PCIE_RC_TYPE);
return 0;

6
drivers/pci/controller/dwc/pcie-designware.h
View File

@ -503,6 +503,7 @@ struct dw_pcie {
struct gpio_desc *pe_rst;
bool suspended;
struct debugfs_info *debugfs;
enum dw_pcie_device_mode mode;
/*
* If iATU input addresses are offset from CPU physical addresses,
@ -871,10 +872,11 @@ dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no)
#endif
#ifdef CONFIG_PCIE_DW_DEBUGFS
void dwc_pcie_debugfs_init(struct dw_pcie *pci);
void dwc_pcie_debugfs_init(struct dw_pcie *pci, enum dw_pcie_device_mode mode);
void dwc_pcie_debugfs_deinit(struct dw_pcie *pci);
#else
static inline void dwc_pcie_debugfs_init(struct dw_pcie *pci)
static inline void dwc_pcie_debugfs_init(struct dw_pcie *pci,
enum dw_pcie_device_mode mode)
{
}
static inline void dwc_pcie_debugfs_deinit(struct dw_pcie *pci)