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PCI: dwc: Add host_post_init() callback

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This callback can be used by the platform drivers to do configuration
once all the devices are scanned. Like changing LNKCTL of all downstream
devices to enable ASPM etc...

Link: https://lore.kernel.org/linux-pci/20231010155914.9516-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
This commit is contained in:
Manivannan Sadhasivam 2023-10-10 21:29:13 +05:30 committed by Krzysztof Wilczyński
parent 0bb80ecc33
commit a78794562f
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GPG Key ID: 7C64768D3DE334E7
2 changed files with 4 additions and 0 deletions
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3
drivers/pci/controller/dwc/pcie-designware-host.c
View File

@ -502,6 +502,9 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp)
if (ret)
goto err_stop_link;
if (pp->ops->host_post_init)
pp->ops->host_post_init(pp);
return 0;
err_stop_link:

1
drivers/pci/controller/dwc/pcie-designware.h
View File

@ -301,6 +301,7 @@ enum dw_pcie_ltssm {
struct dw_pcie_host_ops {
int (*host_init)(struct dw_pcie_rp *pp);
void (*host_deinit)(struct dw_pcie_rp *pp);
void (*host_post_init)(struct dw_pcie_rp *pp);
int (*msi_host_init)(struct dw_pcie_rp *pp);
void (*pme_turn_off)(struct dw_pcie_rp *pp);
};