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authorMarek Behún <marek.behun@nic.cz>2022-01-07 19:45:15 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2022-01-08 21:31:15 +0100
commit96b5962704611fa37d8ed46b73f4254170529b7a (patch)
treee0707f19c61221ed196c8812b127177dc9d785a9
parent5beaa75d94c4a981c580905b84c7ef33caf0c3e2 (diff)
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mvebu: remove patch that was applied into linux stable
The patch PCI: aardvark: Don't touch PCIe registers if no card connected was applied into Linux stable version 5.4.163. Remove it from patches-5.4. (It applied even though it was applied already, resulting in repeated code.) Fixes: 14940aee4566 ("kernel: bump 5.4 to 5.4.163") Signed-off-by: Marek Behún <marek.behun@nic.cz>
-rw-r--r--target/linux/mvebu/patches-5.4/024-PCI-aardvark-Don-t-touch-PCIe-registers-if-no-card-c.patch50
-rw-r--r--target/linux/mvebu/patches-5.4/026-PCI-aardvark-Fix-initialization-with-old-Marvell-s-A.patch2
2 files changed, 1 insertions, 51 deletions
diff --git a/target/linux/mvebu/patches-5.4/024-PCI-aardvark-Don-t-touch-PCIe-registers-if-no-card-c.patch b/target/linux/mvebu/patches-5.4/024-PCI-aardvark-Don-t-touch-PCIe-registers-if-no-card-c.patch
deleted file mode 100644
index 7a8c50634f..0000000000
--- a/target/linux/mvebu/patches-5.4/024-PCI-aardvark-Don-t-touch-PCIe-registers-if-no-card-c.patch
+++ /dev/null
@@ -1,50 +0,0 @@
-From 70e380250c3621c55ff218cbaf2272830d9dbb1d Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
-Date: Thu, 2 Jul 2020 10:30:36 +0200
-Subject: [PATCH] PCI: aardvark: Don't touch PCIe registers if no card
- connected
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-When there is no PCIe card connected and advk_pcie_rd_conf() or
-advk_pcie_wr_conf() is called for PCI bus which doesn't belong to emulated
-root bridge, the aardvark driver throws the following error message:
-
- advk-pcie d0070000.pcie: config read/write timed out
-
-Obviously accessing PCIe registers of disconnected card is not possible.
-
-Extend check in advk_pcie_valid_device() function for validating
-availability of PCIe bus. If PCIe link is down, then the device is marked
-as Not Found and the driver does not try to access these registers.
-
-This is just an optimization to prevent accessing PCIe registers when card
-is disconnected. Trying to access PCIe registers of disconnected card does
-not cause any crash, kernel just needs to wait for a timeout. So if card
-disappear immediately after checking for PCIe link (before accessing PCIe
-registers), it does not cause any problems.
-
-Link: https://lore.kernel.org/r/20200702083036.12230-1-pali@kernel.org
-Signed-off-by: Pali Rohár <pali@kernel.org>
-Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
----
- drivers/pci/controller/pci-aardvark.c | 7 +++++++
- 1 file changed, 7 insertions(+)
-
---- a/drivers/pci/controller/pci-aardvark.c
-+++ b/drivers/pci/controller/pci-aardvark.c
-@@ -976,6 +976,13 @@ static bool advk_pcie_valid_device(struc
- if (bus->number != pcie->root_bus_nr && !advk_pcie_link_up(pcie))
- return false;
-
-+ /*
-+ * If the link goes down after we check for link-up, nothing bad
-+ * happens but the config access times out.
-+ */
-+ if (bus->number != pcie->root_bus_nr && !advk_pcie_link_up(pcie))
-+ return false;
-+
- return true;
- }
-
diff --git a/target/linux/mvebu/patches-5.4/026-PCI-aardvark-Fix-initialization-with-old-Marvell-s-A.patch b/target/linux/mvebu/patches-5.4/026-PCI-aardvark-Fix-initialization-with-old-Marvell-s-A.patch
index bcf63ab8ec..5a6173a666 100644
--- a/target/linux/mvebu/patches-5.4/026-PCI-aardvark-Fix-initialization-with-old-Marvell-s-A.patch
+++ b/target/linux/mvebu/patches-5.4/026-PCI-aardvark-Fix-initialization-with-old-Marvell-s-A.patch
@@ -31,7 +31,7 @@ Cc: <stable@vger.kernel.org> # 5.8+: ea17a0f153af: phy: marvell: comphy: Convert
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
-@@ -1533,7 +1533,9 @@ static int advk_pcie_enable_phy(struct a
+@@ -1526,7 +1526,9 @@ static int advk_pcie_enable_phy(struct a
}
ret = phy_power_on(pcie->phy);