From a78794562fcb2659c976388b1285eddda97e9954 Mon Sep 17 00:00:00 2001 From: Manivannan Sadhasivam Date: Tue, 10 Oct 2023 21:29:13 +0530 Subject: [PATCH] PCI: dwc: Add host_post_init() callback MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Krzysztof Wilczyński --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 +++ drivers/pci/controller/dwc/pcie-designware.h | 1 + 2 files changed, 4 insertions(+) --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -502,6 +502,9 @@ int dw_pcie_host_init(struct dw_pcie_rp if (ret) goto err_stop_link; + if (pp->ops->host_post_init) + pp->ops->host_post_init(pp); + return 0; err_stop_link: --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -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); };