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[RESEND,v6,03/11] PCI: bt1: Enable async probe type

Message ID 20230531112602.7222-4-Sergey.Semin@baikalelectronics.ru (mailing list archive)
State Superseded
Headers show
Series PCI: dwc: Relatively simple fixes and cleanups | expand

Commit Message

Serge Semin May 31, 2023, 11:25 a.m. UTC 
It's safe to enable the asyncronous probe type since the PCIe peripheral
devices probing order isn't essential for booting the system. Moreover
enabling that feature saves 0.5 seconds of bootup time if no any device
attached to the PCIe root port. It's a significant performance gain seeing
the total bootup time takes about 3 seconds.

Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/pci/controller/dwc/pcie-bt1.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/pci/controller/dwc/pcie-bt1.c b/drivers/pci/controller/dwc/pcie-bt1.c
index 95a723a6fd46..e36a20bf82cf 100644
--- a/drivers/pci/controller/dwc/pcie-bt1.c
+++ b/drivers/pci/controller/dwc/pcie-bt1.c
@@ -638,6 +638,7 @@  static struct platform_driver bt1_pcie_driver = {
 	.driver = {
 		.name	= "bt1-pcie",
 		.of_match_table = bt1_pcie_of_match,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_platform_driver(bt1_pcie_driver);