From f91e123cb79433aeeb1b897d1196528ed8aa7b48 Mon Sep 17 00:00:00 2001
From: "David E. Box" <david.e.box@linux.intel.com>
Date: Wed, 7 Jul 2021 21:22:17 +0800
Subject: [PATCH] UBUNTU: SAUCE: platform/x86: intel_pmc_core: Add GBE Package
C10 fix for Alder Lake PCH
BugLink: https://bugs.launchpad.net/bugs/1934660
Alder PCH uses the same Gigabit Ethernet (GBE) device as Tiger Lake PCH
which cannot achieve PC10 without ignoring the PMC GBE LTR. Add this
work around for Alder Lake PCH as well.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
(cherry picked from
https://patchwork.kernel.org/project/platform-driver-x86/patch/bb897d898c060da4bc20d3d866193c53c6fd4ee1.1625191274.git.gayatri.kammela@intel.com/)
Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com>
Signed-off-by: Timo Aaltonen <timo.aaltonen@canonical.com>
---
drivers/platform/x86/intel_pmc_core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
index 27346ff5a9240..84b58b557a494 100644
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@ -1983,10 +1983,10 @@ static int pmc_core_probe(struct platform_device *pdev)
pmc_core_get_tgl_lpm_reqs(pdev);
/*
- * On TGL, due to a hardware limitation, the GBE LTR blocks PC10 when
- * a cable is attached. Tell the PMC to ignore it.
+ * On TGL and ADL, due to a hardware limitation, the GBE LTR blocks PC10
+ * when a cable is attached. Tell the PMC to ignore it.
*/
- if (pmcdev->map == &tgl_reg_map) {
+ if (pmcdev->map == &tgl_reg_map || pmcdev->map == &adl_reg_map) {
dev_dbg(&pdev->dev, "ignoring GBE LTR\n");
pmc_core_send_ltr_ignore(pmcdev, 3);
}