openwrt/target/linux/generic/backport-5.15/850-v5.17-0010-PCI-aardvark-Disable-link-training-when-unbinding-dr.patch
Rui Salvaterra be381a7ac7 kernel: bump 5.15 to 5.15.33
Deleted (upstreamed):
generic/backport-5.15/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch [1]
generic/backport-5.15/730-v5.16-hv-utils-add-PTP_1588_CLOCK-to-Kconfig-to-fix-build.patch [2]
generic/pending-5.15/850-0014-PCI-aardvark-Fix-reading-PCI_EXP_RTSTA_PME-bit-on-em.patch [3]
generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch [4]

Manually rebased:
generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch
ramips/patches-5.15/710-at803x.patch

[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d29cda15cab086d82d692de016f7249545d4b6b4
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d5aad7d63b1b5c1f3c4b69e12c05e7c7d196fae8
[3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=ed750e22e44366e264bcdf7b1cf0713f08f7980a
[4] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=0fe94b84c43cfea867e1721606185e8686d7d32f

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
[Refresh patches again]
[Remove generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2022-04-09 19:31:46 +02:00

35 lines
1.3 KiB
Diff

From 759dec2e3dfdbd261c41d2279f04f2351c971a49 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Tue, 30 Nov 2021 18:29:12 +0100
Subject: [PATCH] PCI: aardvark: Disable link training when unbinding driver
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Disable link training circuit in driver unbind sequence. We want to
leave link training in the same state as it was before the driver was
probed.
Link: https://lore.kernel.org/r/20211130172913.9727-11-kabel@kernel.org
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---
drivers/pci/controller/pci-aardvark.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -1729,6 +1729,11 @@ static int advk_pcie_remove(struct platf
if (pcie->reset_gpio)
gpiod_set_value_cansleep(pcie->reset_gpio, 1);
+ /* Disable link training */
+ val = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
+ val &= ~LINK_TRAINING_EN;
+ advk_writel(pcie, val, PCIE_CORE_CTRL0_REG);
+
/* Disable outbound address windows mapping */
for (i = 0; i < OB_WIN_COUNT; i++)
advk_pcie_disable_ob_win(pcie, i);