[RFC v1 00/18] PCI: Enable async probe by default

[RFC v1 00/18] PCI: Enable async probe by default

[Anand Moon]

Following recent asynchronous probing updates to the Rockchip PCIe
controller, this change enables default async probe functionality for
all DesignWare Core (DWC) based controllers to optimize boot times [0]. 

[0] https://lore.kernel.org/all/20260226101032.1042-1-linux.amoon@gmail.com/

This PROBE_PREFER_ASYNCHRONOUS flag help to parallelize device initialization.

Thanks
-Anand

Anand Moon (18):
  PCI: al: Allow asynchronous probing for background link training
  PCI: amd-mdb: Allow asynchronous probing for background link training
  PCI: armada8x: Allow asynchronous probing for background link training
  PCI: artpec6: Allow asynchronous probing for background link training
  PCI: bt1: Allow asynchronous probing for background link training
  PCI: dra7xx: Allow asynchronous probing for background link training
  PCI: exynos: Allow asynchronous probing for background link training
  PCI: fu740: Allow asynchronous probing for background link training
  PCI: intel-gw: Allow asynchronous probing for background link training
  PCI: keystone: Allow asynchronous probing for background link training
  PCI: keembay: Allow asynchronous probing for background link training
  PCI: kirin: Allow asynchronous probing for background link training
  PCI: layerscape: Allow asynchronous probing for background link
    training
  PCI: meson: Allow asynchronous probing for background link training
  PCI: sophgo: Allow asynchronous probing for background link training
  PCI: tegra194: Allow asynchronous probing for background link training
  PCI: uniphier: Allow asynchronous probing for background link training
  PCI: visconti: Allow asynchronous probing for background link training

 drivers/pci/controller/dwc/pci-dra7xx.c     | 1 +
 drivers/pci/controller/dwc/pci-exynos.c     | 1 +
 drivers/pci/controller/dwc/pci-keystone.c   | 1 +
 drivers/pci/controller/dwc/pci-layerscape.c | 1 +
 drivers/pci/controller/dwc/pci-meson.c      | 1 +
 drivers/pci/controller/dwc/pcie-al.c        | 1 +
 drivers/pci/controller/dwc/pcie-amd-mdb.c   | 1 +
 drivers/pci/controller/dwc/pcie-armada8k.c  | 1 +
 drivers/pci/controller/dwc/pcie-artpec6.c   | 1 +
 drivers/pci/controller/dwc/pcie-bt1.c       | 1 +
 drivers/pci/controller/dwc/pcie-fu740.c     | 7 ++++---
 drivers/pci/controller/dwc/pcie-intel-gw.c  | 1 +
 drivers/pci/controller/dwc/pcie-keembay.c   | 1 +
 drivers/pci/controller/dwc/pcie-kirin.c     | 1 +
 drivers/pci/controller/dwc/pcie-sophgo.c    | 1 +
 drivers/pci/controller/dwc/pcie-tegra194.c  | 1 +
 drivers/pci/controller/dwc/pcie-uniphier.c  | 1 +
 drivers/pci/controller/dwc/pcie-visconti.c  | 1 +
 18 files changed, 21 insertions(+), 3 deletions(-)


base-commit: 0031c06807cfa8aa51a759ff8aa09e1aa48149af
-- 
2.50.1

[RFC v1 01/18] PCI: al: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-al.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-al.c b/drivers/pci/controller/dwc/pcie-al.c
index 345c281c74fe..6e3f52ccc1fa 100644
--- a/drivers/pci/controller/dwc/pcie-al.c
+++ b/drivers/pci/controller/dwc/pcie-al.c
@@ -383,6 +383,7 @@ static struct platform_driver al_pcie_driver = {
 		.name	= "al-pcie",
 		.of_match_table = al_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = al_pcie_probe,
 };
-- 
2.50.1

[RFC v1 02/18] PCI: amd-mdb: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-amd-mdb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-amd-mdb.c b/drivers/pci/controller/dwc/pcie-amd-mdb.c
index 3c6e837465bb..3da5ceac9b6a 100644
--- a/drivers/pci/controller/dwc/pcie-amd-mdb.c
+++ b/drivers/pci/controller/dwc/pcie-amd-mdb.c
@@ -519,6 +519,7 @@ static struct platform_driver amd_mdb_pcie_driver = {
 		.name	= "amd-mdb-pcie",
 		.of_match_table = amd_mdb_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = amd_mdb_pcie_probe,
 };
-- 
2.50.1

[RFC v1 03/18] PCI: armada8x: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-armada8k.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-armada8k.c b/drivers/pci/controller/dwc/pcie-armada8k.c
index c2650fd0d458..ffb5554a2a8d 100644
--- a/drivers/pci/controller/dwc/pcie-armada8k.c
+++ b/drivers/pci/controller/dwc/pcie-armada8k.c
@@ -344,6 +344,7 @@ static struct platform_driver armada8k_pcie_driver = {
 		.name	= "armada8k-pcie",
 		.of_match_table = armada8k_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(armada8k_pcie_driver);
-- 
2.50.1

[RFC v1 04/18] PCI: artpec6: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-artpec6.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-artpec6.c b/drivers/pci/controller/dwc/pcie-artpec6.c
index e994b75986c3..d8b827926b85 100644
--- a/drivers/pci/controller/dwc/pcie-artpec6.c
+++ b/drivers/pci/controller/dwc/pcie-artpec6.c
@@ -520,6 +520,7 @@ static struct platform_driver artpec6_pcie_driver = {
 		.name	= "artpec6-pcie",
 		.of_match_table = artpec6_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(artpec6_pcie_driver);
-- 
2.50.1

[RFC v1 05/18] PCI: bt1: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-bt1.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-bt1.c b/drivers/pci/controller/dwc/pcie-bt1.c
index 1340edc18d12..ef6a3c7fa279 100644
--- a/drivers/pci/controller/dwc/pcie-bt1.c
+++ b/drivers/pci/controller/dwc/pcie-bt1.c
@@ -636,6 +636,7 @@ 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);
-- 
2.50.1

[RFC v1 06/18] PCI: dra7xx: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pci-dra7xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index d5d26229063f..be470d54b2ee 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -951,6 +951,7 @@ static struct platform_driver dra7xx_pcie_driver = {
 		.of_match_table = of_dra7xx_pcie_match,
 		.suppress_bind_attrs = true,
 		.pm	= &dra7xx_pcie_pm_ops,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.shutdown = dra7xx_pcie_shutdown,
 };
-- 
2.50.1

[RFC v1 07/18] PCI: exynos: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pci-exynos.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c
index 0bb7d4f5d784..ee2423e16b58 100644
--- a/drivers/pci/controller/dwc/pci-exynos.c
+++ b/drivers/pci/controller/dwc/pci-exynos.c
@@ -388,6 +388,7 @@ static struct platform_driver exynos_pcie_driver = {
 		.name	= "exynos-pcie",
 		.of_match_table = exynos_pcie_of_match,
 		.pm		= &exynos_pcie_pm_ops,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_platform_driver(exynos_pcie_driver);
-- 
2.50.1

[RFC v1 08/18] PCI: fu740: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Fix the identation of the callback functions.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-fu740.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-fu740.c b/drivers/pci/controller/dwc/pcie-fu740.c
index 66367252032b..aa6a15baf3fd 100644
--- a/drivers/pci/controller/dwc/pcie-fu740.c
+++ b/drivers/pci/controller/dwc/pcie-fu740.c
@@ -346,9 +346,10 @@ static const struct of_device_id fu740_pcie_of_match[] = {
 
 static struct platform_driver fu740_pcie_driver = {
 	.driver = {
-		   .name = "fu740-pcie",
-		   .of_match_table = fu740_pcie_of_match,
-		   .suppress_bind_attrs = true,
+		.name = "fu740-pcie",
+		.of_match_table = fu740_pcie_of_match,
+		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = fu740_pcie_probe,
 	.shutdown = fu740_pcie_shutdown,
-- 
2.50.1

Re: [RFC v1 08/18] PCI: fu740: Allow asynchronous probing for background link training

[Frank Li]

From: Frank Li (AI-BOT) <frank.li@nxp.com>

Commit message has a typo:

> Fix the identation of the callback functions.

Should be "indentation" (two 'n's).

The code changes look good otherwise. The indentation fix aligns with kernel
style (8-char tabs), and adding PROBE_PREFER_ASYNCHRONOUS is a straightforward
addition that matches the stated intent.

AI bot review and may be useless.

Re: [RFC v1 08/18] PCI: fu740: Allow asynchronous probing for background link training

[Krzysztof Kozlowski]

On 04/03/2026 15:55, Frank Li wrote:
> From: Frank Li (AI-BOT) <frank.li@nxp.com>
> 
> Commit message has a typo:
> 
>> Fix the identation of the callback functions.
> 
> Should be "indentation" (two 'n's).
> 
> The code changes look good otherwise. The indentation fix aligns with kernel
> style (8-char tabs), and adding PROBE_PREFER_ASYNCHRONOUS is a straightforward
> addition that matches the stated intent.
> 
> AI bot review and may be useless.

So don't send us useless reviews. Trim your reply list, so only you see
them.

Best regards,
Krzysztof

[RFC v1 09/18] PCI: intel-gw: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-intel-gw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-intel-gw.c b/drivers/pci/controller/dwc/pcie-intel-gw.c
index c21906eced61..bc5d96dc12bf 100644
--- a/drivers/pci/controller/dwc/pcie-intel-gw.c
+++ b/drivers/pci/controller/dwc/pcie-intel-gw.c
@@ -442,6 +442,7 @@ static struct platform_driver intel_pcie_driver = {
 		.name = "intel-gw-pcie",
 		.of_match_table = of_intel_pcie_match,
 		.pm = &intel_pcie_pm_ops,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(intel_pcie_driver);
-- 
2.50.1

[RFC v1 10/18] PCI: keystone: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pci-keystone.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 20fa4dadb82a..b5c0c690593e 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -1351,6 +1351,7 @@ static struct platform_driver ks_pcie_driver = {
 	.driver = {
 		.name	= "keystone-pcie",
 		.of_match_table = ks_pcie_of_match,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 
-- 
2.50.1

[RFC v1 11/18] PCI: keembay: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while; allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-keembay.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-keembay.c b/drivers/pci/controller/dwc/pcie-keembay.c
index 2666a9c3d67e..a82d69b37e4d 100644
--- a/drivers/pci/controller/dwc/pcie-keembay.c
+++ b/drivers/pci/controller/dwc/pcie-keembay.c
@@ -478,6 +478,7 @@ static struct platform_driver keembay_pcie_driver = {
 		.name = "keembay-pcie",
 		.of_match_table = keembay_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe  = keembay_pcie_probe,
 };
-- 
2.50.1

[RFC v1 12/18] PCI: kirin: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while; allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-kirin.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index 91559c8b1866..bc905056a9d7 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -757,6 +757,7 @@ static struct platform_driver kirin_pcie_driver = {
 		.name			= "kirin-pcie",
 		.of_match_table		= kirin_pcie_match,
 		.suppress_bind_attrs	= true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_platform_driver(kirin_pcie_driver);
-- 
2.50.1

[RFC v1 13/18] PCI: layerscape: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pci-layerscape.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-layerscape.c b/drivers/pci/controller/dwc/pci-layerscape.c
index a44b5c256d6e..43a28d9ea7b0 100644
--- a/drivers/pci/controller/dwc/pci-layerscape.c
+++ b/drivers/pci/controller/dwc/pci-layerscape.c
@@ -410,6 +410,7 @@ static struct platform_driver ls_pcie_driver = {
 		.of_match_table = ls_pcie_of_match,
 		.suppress_bind_attrs = true,
 		.pm = &ls_pcie_pm_ops,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(ls_pcie_driver);
-- 
2.50.1

[RFC v1 14/18] PCI: meson: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pci-meson.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
index 0694084f612b..280146f7b783 100644
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -467,6 +467,7 @@ static struct platform_driver meson_pcie_driver = {
 	.driver = {
 		.name = "meson-pcie",
 		.of_match_table = meson_pcie_of_match,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 
-- 
2.50.1

[RFC v1 15/18] PCI: sophgo: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-sophgo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-sophgo.c b/drivers/pci/controller/dwc/pcie-sophgo.c
index 044088898819..0393f4b613de 100644
--- a/drivers/pci/controller/dwc/pcie-sophgo.c
+++ b/drivers/pci/controller/dwc/pcie-sophgo.c
@@ -269,6 +269,7 @@ static struct platform_driver sophgo_pcie_driver = {
 		.name = "sophgo-pcie",
 		.of_match_table = sophgo_pcie_of_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 	.probe = sophgo_pcie_probe,
 };
-- 
2.50.1

[RFC v1 16/18] PCI: tegra194: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-tegra194.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 06571d806ab3..7381d0019d24 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -2493,6 +2493,7 @@ static struct platform_driver tegra_pcie_dw_driver = {
 		.name	= "tegra194-pcie",
 		.pm = &tegra_pcie_dw_pm_ops,
 		.of_match_table = tegra_pcie_dw_of_match,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_platform_driver(tegra_pcie_dw_driver);
-- 
2.50.1

[RFC v1 17/18] PCI: uniphier: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-uniphier.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-uniphier.c b/drivers/pci/controller/dwc/pcie-uniphier.c
index 297e7a3d9b36..53f3bc9f5ba7 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier.c
@@ -404,6 +404,7 @@ static struct platform_driver uniphier_pcie_driver = {
 	.driver = {
 		.name = "uniphier-pcie",
 		.of_match_table = uniphier_pcie_match,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(uniphier_pcie_driver);
-- 
2.50.1

[RFC v1 18/18] PCI: visconti: Allow asynchronous probing for background link training

[Anand Moon]

Establishing a PCIe link can take a while, allow asynchronous probing so
that link establishment can happen in the background while other devices
are being probed.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 drivers/pci/controller/dwc/pcie-visconti.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-visconti.c b/drivers/pci/controller/dwc/pcie-visconti.c
index cdeac6177143..f21cc95fe89f 100644
--- a/drivers/pci/controller/dwc/pcie-visconti.c
+++ b/drivers/pci/controller/dwc/pcie-visconti.c
@@ -324,6 +324,7 @@ static struct platform_driver visconti_pcie_driver = {
 		.name = "visconti-pcie",
 		.of_match_table = visconti_pcie_match,
 		.suppress_bind_attrs = true,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 builtin_platform_driver(visconti_pcie_driver);
-- 
2.50.1

Re: [RFC v1 00/18] PCI: Enable async probe by default

[Chen Wang]

Hello Anand,

On 3/4/2026 9:51 PM, Anand Moon wrote:
> Following recent asynchronous probing updates to the Rockchip PCIe
> controller, this change enables default async probe functionality for
> all DesignWare Core (DWC) based controllers to optimize boot times [0].
>
> [0] https://lore.kernel.org/all/20260226101032.1042-1-linux.amoon@gmail.com/
>
> This PROBE_PREFER_ASYNCHRONOUS flag help to parallelize device initialization.
>
> Thanks
> -Anand
>
> Anand Moon (18):
>    PCI: al: Allow asynchronous probing for background link training
>    PCI: amd-mdb: Allow asynchronous probing for background link training
>    PCI: armada8x: Allow asynchronous probing for background link training
>    PCI: artpec6: Allow asynchronous probing for background link training
>    PCI: bt1: Allow asynchronous probing for background link training
>    PCI: dra7xx: Allow asynchronous probing for background link training
>    PCI: exynos: Allow asynchronous probing for background link training
>    PCI: fu740: Allow asynchronous probing for background link training
>    PCI: intel-gw: Allow asynchronous probing for background link training
>    PCI: keystone: Allow asynchronous probing for background link training
>    PCI: keembay: Allow asynchronous probing for background link training
>    PCI: kirin: Allow asynchronous probing for background link training
>    PCI: layerscape: Allow asynchronous probing for background link
>      training
>    PCI: meson: Allow asynchronous probing for background link training
>    PCI: sophgo: Allow asynchronous probing for background link training
>    PCI: tegra194: Allow asynchronous probing for background link training
>    PCI: uniphier: Allow asynchronous probing for background link training
>    PCI: visconti: Allow asynchronous probing for background link training
>
>   drivers/pci/controller/dwc/pci-dra7xx.c     | 1 +
>   drivers/pci/controller/dwc/pci-exynos.c     | 1 +
>   drivers/pci/controller/dwc/pci-keystone.c   | 1 +
>   drivers/pci/controller/dwc/pci-layerscape.c | 1 +
>   drivers/pci/controller/dwc/pci-meson.c      | 1 +
>   drivers/pci/controller/dwc/pcie-al.c        | 1 +
>   drivers/pci/controller/dwc/pcie-amd-mdb.c   | 1 +
>   drivers/pci/controller/dwc/pcie-armada8k.c  | 1 +
>   drivers/pci/controller/dwc/pcie-artpec6.c   | 1 +
>   drivers/pci/controller/dwc/pcie-bt1.c       | 1 +
>   drivers/pci/controller/dwc/pcie-fu740.c     | 7 ++++---
>   drivers/pci/controller/dwc/pcie-intel-gw.c  | 1 +
>   drivers/pci/controller/dwc/pcie-keembay.c   | 1 +
>   drivers/pci/controller/dwc/pcie-kirin.c     | 1 +
>   drivers/pci/controller/dwc/pcie-sophgo.c    | 1 +
>   drivers/pci/controller/dwc/pcie-tegra194.c  | 1 +
>   drivers/pci/controller/dwc/pcie-uniphier.c  | 1 +
>   drivers/pci/controller/dwc/pcie-visconti.c  | 1 +
>   18 files changed, 21 insertions(+), 3 deletions(-)
>
>
> base-commit: 0031c06807cfa8aa51a759ff8aa09e1aa48149af

Suggest you indicate in the title of the cover letter for the next patch 
that this patchset is only related to dwc.

Thanks,

Chen

Re: [RFC v1 00/18] PCI: Enable async probe by default

[Anand Moon]

Hi Chen,

On Thu, 5 Mar 2026 at 05:57, Chen Wang <unicorn_wang@outlook.com> wrote:
>
> Hello Anand,
>
> On 3/4/2026 9:51 PM, Anand Moon wrote:
> > Following recent asynchronous probing updates to the Rockchip PCIe
> > controller, this change enables default async probe functionality for
> > all DesignWare Core (DWC) based controllers to optimize boot times [0].
> >
> > [0] https://lore.kernel.org/all/20260226101032.1042-1-linux.amoon@gmail.com/
> >
> > This PROBE_PREFER_ASYNCHRONOUS flag help to parallelize device initialization.
> >
> > Thanks
> > -Anand
> >
> > Anand Moon (18):
> >    PCI: al: Allow asynchronous probing for background link training
> >    PCI: amd-mdb: Allow asynchronous probing for background link training
> >    PCI: armada8x: Allow asynchronous probing for background link training
> >    PCI: artpec6: Allow asynchronous probing for background link training
> >    PCI: bt1: Allow asynchronous probing for background link training
> >    PCI: dra7xx: Allow asynchronous probing for background link training
> >    PCI: exynos: Allow asynchronous probing for background link training
> >    PCI: fu740: Allow asynchronous probing for background link training
> >    PCI: intel-gw: Allow asynchronous probing for background link training
> >    PCI: keystone: Allow asynchronous probing for background link training
> >    PCI: keembay: Allow asynchronous probing for background link training
> >    PCI: kirin: Allow asynchronous probing for background link training
> >    PCI: layerscape: Allow asynchronous probing for background link
> >      training
> >    PCI: meson: Allow asynchronous probing for background link training
> >    PCI: sophgo: Allow asynchronous probing for background link training
> >    PCI: tegra194: Allow asynchronous probing for background link training
> >    PCI: uniphier: Allow asynchronous probing for background link training
> >    PCI: visconti: Allow asynchronous probing for background link training
> >
> >   drivers/pci/controller/dwc/pci-dra7xx.c     | 1 +
> >   drivers/pci/controller/dwc/pci-exynos.c     | 1 +
> >   drivers/pci/controller/dwc/pci-keystone.c   | 1 +
> >   drivers/pci/controller/dwc/pci-layerscape.c | 1 +
> >   drivers/pci/controller/dwc/pci-meson.c      | 1 +
> >   drivers/pci/controller/dwc/pcie-al.c        | 1 +
> >   drivers/pci/controller/dwc/pcie-amd-mdb.c   | 1 +
> >   drivers/pci/controller/dwc/pcie-armada8k.c  | 1 +
> >   drivers/pci/controller/dwc/pcie-artpec6.c   | 1 +
> >   drivers/pci/controller/dwc/pcie-bt1.c       | 1 +
> >   drivers/pci/controller/dwc/pcie-fu740.c     | 7 ++++---
> >   drivers/pci/controller/dwc/pcie-intel-gw.c  | 1 +
> >   drivers/pci/controller/dwc/pcie-keembay.c   | 1 +
> >   drivers/pci/controller/dwc/pcie-kirin.c     | 1 +
> >   drivers/pci/controller/dwc/pcie-sophgo.c    | 1 +
> >   drivers/pci/controller/dwc/pcie-tegra194.c  | 1 +
> >   drivers/pci/controller/dwc/pcie-uniphier.c  | 1 +
> >   drivers/pci/controller/dwc/pcie-visconti.c  | 1 +
> >   18 files changed, 21 insertions(+), 3 deletions(-)
> >
> >
> > base-commit: 0031c06807cfa8aa51a759ff8aa09e1aa48149af
>
> Suggest you indicate in the title of the cover letter for the next patch
> that this patchset is only related to dwc.
>
Thanks, If I get positive feedback I will append dwc in the $subject.
> Thanks,
>
> Chen
>
Thanks
-Anand