diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch b/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch deleted file mode 100644 index c11aedd814..0000000000 --- a/target/linux/generic/backport-5.10/822-v5.13-advertise-lack-of-built-in-msi-handling.patch +++ /dev/null @@ -1,59 +0,0 @@ -From 645e9c38383d7fcde2784ee537fa18ec9bed54d9 Mon Sep 17 00:00:00 2001 -From: Thomas Gleixner <tglx@linutronix.de> -Date: Tue, 30 Mar 2021 16:11:43 +0100 -Subject: PCI: mediatek: Advertise lack of built-in MSI handling - -Some Mediatek host bridges cannot handle MSIs, which is sad. -This also results in an ugly warning at device probe time, -as the core PCI code wasn't told that MSIs were not available. - -Advertise this fact to the rest of the core PCI code by -using the 'msi_domain' attribute, which still opens the possibility -for another block to provide the MSI functionnality. - -[maz: commit message, switched over to msi_domain attribute] - -Link: https://lore.kernel.org/r/20210330151145.997953-13-maz@kernel.org -Reported-by: Frank Wunderlich <frank-w@public-files.de> -Signed-off-by: Thomas Gleixner <tglx@linutronix.de> -Signed-off-by: Marc Zyngier <maz@kernel.org> -Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> -Acked-by: Bjorn Helgaas <bhelgaas@google.com> ---- - drivers/pci/controller/pcie-mediatek.c | 4 ++++ - 1 file changed, 4 insertions(+) - ---- a/drivers/pci/controller/pcie-mediatek.c -+++ b/drivers/pci/controller/pcie-mediatek.c -@@ -143,6 +143,7 @@ struct mtk_pcie_port; - * struct mtk_pcie_soc - differentiate between host generations - * @need_fix_class_id: whether this host's class ID needed to be fixed or not - * @need_fix_device_id: whether this host's device ID needed to be fixed or not -+ * @no_msi: Bridge has no MSI support, and relies on an external block - * @device_id: device ID which this host need to be fixed - * @ops: pointer to configuration access functions - * @startup: pointer to controller setting functions -@@ -151,6 +152,7 @@ struct mtk_pcie_port; - struct mtk_pcie_soc { - bool need_fix_class_id; - bool need_fix_device_id; -+ bool no_msi; - unsigned int device_id; - struct pci_ops *ops; - int (*startup)(struct mtk_pcie_port *port); -@@ -1087,6 +1089,7 @@ static int mtk_pcie_probe(struct platfor - - host->ops = pcie->soc->ops; - host->sysdata = pcie; -+ host->msi_domain = pcie->soc->no_msi; - - err = pci_host_probe(host); - if (err) -@@ -1176,6 +1179,7 @@ static const struct dev_pm_ops mtk_pcie_ - }; - - static const struct mtk_pcie_soc mtk_pcie_soc_v1 = { -+ .no_msi = true, - .ops = &mtk_pcie_ops, - .startup = mtk_pcie_startup_port, - }; |