lkml.org 
[lkml]   [2018]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH v1 2/2] PCI: shpchp: Fix AMD POGO identification
From
Date
From: Bjorn Helgaas <bhelgaas@google.com>

The fix for an AMD POGO erratum related to SHPC incorrectly identified the
device. The workaround should be applied only for AMD POGO devices, but it
was instead applied to:

- all AMD bridges, and
- all devices from any vendor with device ID 0x7458

Fixes: 53044f357448 ("[PATCH] PCI Hotplug: shpchp: AMD POGO errata fix")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/hotplug/shpchp_ctrl.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index bedda5bda910..1047b56e5730 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -585,13 +585,13 @@ static int shpchp_enable_slot (struct slot *p_slot)
ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);
p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);

- if (((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD) ||
- (p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458))
+ if ((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD &&
+ p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)
&& p_slot->ctrl->num_slots == 1) {
- /* handle amd pogo errata; this must be done before enable */
+ /* handle AMD POGO errata; this must be done before enable */
amd_pogo_errata_save_misc_reg(p_slot);
retval = board_added(p_slot);
- /* handle amd pogo errata; this must be done after enable */
+ /* handle AMD POGO errata; this must be done after enable */
amd_pogo_errata_restore_misc_reg(p_slot);
} else
retval = board_added(p_slot);
\
 
 \ /
  Last update: 2018-06-02 07:43    [W:0.076 / U:0.428 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site