diff options
Diffstat (limited to 'target/linux/ramips/patches-5.4/0114-staging-mt7621-pci-avoid-to-poweroff-the-phy-for-slo.patch')
| -rw-r--r-- | target/linux/ramips/patches-5.4/0114-staging-mt7621-pci-avoid-to-poweroff-the-phy-for-slo.patch | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/target/linux/ramips/patches-5.4/0114-staging-mt7621-pci-avoid-to-poweroff-the-phy-for-slo.patch b/target/linux/ramips/patches-5.4/0114-staging-mt7621-pci-avoid-to-poweroff-the-phy-for-slo.patch deleted file mode 100644 index d733e58537..0000000000 --- a/target/linux/ramips/patches-5.4/0114-staging-mt7621-pci-avoid-to-poweroff-the-phy-for-slo.patch +++ /dev/null @@ -1,79 +0,0 @@ -From d81fe3c13aa6f4ab1ec318212d2007175e6d05aa Mon Sep 17 00:00:00 2001 -From: Sergio Paracuellos <sergio.paracuellos@gmail.com> -Date: Fri, 20 Mar 2020 16:38:37 +0100 -Subject: [PATCH] staging: mt7621-pci: avoid to poweroff the phy for slot one - -Phy for slot 0 and 1 is shared and handled properly in slot 0. -If there is only one port in use,(slot 0) we shall not call the -'phy_power_off' function with an invalid slot because kernel -will crash with an unaligned access fault like the following: - -mt7621-pci 1e140000.pcie: Error applying setting, reverse things back -mt7621-pci-phy 1e149000.pcie-phy: PHY for 0xbe149000 (dual port = 1) -mt7621-pci-phy 1e14a000.pcie-phy: PHY for 0xbe14a000 (dual port = 0) -mt7621-pci-phy 1e149000.pcie-phy: Xtal is 40MHz -mt7621-pci-phy 1e14a000.pcie-phy: Xtal is 40MHz -mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK) -Unhandled kernel unaligned access[#1]: -CPU: 3 PID: 111 Comm: kworker/3:2 Not tainted 5.6.0-rc3-00347-g825c6f470c62-dirty #9 -Workqueue: events deferred_probe_work_func -$ 0 : 00000000 00000001 5f60d043 8fe1ba80 -$ 4 : 0000010d 01eb9000 00000000 00000000 -$ 8 : 294b4c00 80940000 00000008 000000ce -$12 : 2e303030 00000000 00000000 65696370 -$16 : ffffffed 0000010d 8e373cd0 8214c1e0 -$20 : 00000000 82144c80 82144680 8214c250 -$24 : 00000018 803ef8f4 -$28 : 8e372000 8e373c60 8214c080 803940e8 -Hi : 00000125 -Lo : 122f2000 -epc : 807b3328 mutex_lock+0x8/0x44 -ra : 803940e8 phy_power_off+0x28/0xb0 -Status: 1100fc03 KERNEL EXL IE -Cause : 00800010 (ExcCode 04) -BadVA : 0000010d -PrId : 0001992f (MIPS 1004Kc) -Modules linked in: -Process kworker/3:2 (pid: 111, threadinfo=(ptrval), task=(ptrval), tls=00000000) -Stack : 8e373cd0 803fe4f4 8e372000 8e373c90 8214c080 804fde1c 8e373c98 808d62f4 - 8e373c78 00000000 8214c254 804fe648 1e160000 804f27b8 00000001 808d62f4 - 00000000 00000001 8214c228 808d62f4 80930000 809a0000 8fd47e10 808d63d4 - 808d62d4 8fd47e10 808d0000 808d0000 8e373cd0 8e373cd0 809e2a74 809db510 - 809db510 00000006 00000001 00000000 00000000 00000000 01000000 1e1440ff - ... -Call Trace: -[<807b3328>] mutex_lock+0x8/0x44 -[<803940e8>] phy_power_off+0x28/0xb0 -[<804fe648>] mt7621_pci_probe+0xc20/0xd18 -[<80402ab8>] platform_drv_probe+0x40/0x94 -[<80400a74>] really_probe+0x104/0x364 -[<803feb74>] bus_for_each_drv+0x84/0xdc -[<80400924>] __device_attach+0xdc/0x120 -[<803ffb5c>] bus_probe_device+0xa0/0xbc -[<80400124>] deferred_probe_work_func+0x7c/0xbc -[<800420e8>] process_one_work+0x230/0x450 -[<80042638>] worker_thread+0x330/0x5fc -[<80048eb0>] kthread+0x12c/0x134 -[<80007438>] ret_from_kernel_thread+0x14/0x1c -Code: 24050002 27bdfff8 8f830000 <c0850000> 14a00005 00000000 00600825 e0810000 1020fffa - -Fixes: bf516f413f4e ("staging: mt7621-pci: use only two phys from device tree") -Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> -Link: https://lore.kernel.org/r/20200320153837.20415-1-sergio.paracuellos@gmail.com -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - drivers/staging/mt7621-pci/pci-mt7621.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/drivers/staging/mt7621-pci/pci-mt7621.c -+++ b/drivers/staging/mt7621-pci/pci-mt7621.c -@@ -517,7 +517,8 @@ static void mt7621_pcie_init_ports(struc - if (!mt7621_pcie_port_is_linkup(port)) { - dev_err(dev, "pcie%d no card, disable it (RST & CLK)\n", - slot); -- phy_power_off(port->phy); -+ if (slot != 1) -+ phy_power_off(port->phy); - mt7621_control_assert(port); - mt7621_pcie_port_clk_disable(port); - port->enabled = false; |