From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Mon, 25 Sep 2023 08:05:38 +0000 (+0300)
Subject: ata: ahci: Add Intel Alder Lake-P AHCI controller to low power chipsets list
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b8b8b4e0c052;p=linux.git

ata: ahci: Add Intel Alder Lake-P AHCI controller to low power chipsets list

Intel Alder Lake-P AHCI controller needs to be added to the mobile
chipsets list in order to have link power management enabled. Without
this the CPU cannot enter lower power C-states making idle power
consumption high.

Cc: Koba Ko <koba.ko@canonical.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
---

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 99b3d3e607749..3a5f3255f51b3 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -423,6 +423,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x02d7), board_ahci_low_power }, /* Comet Lake PCH RAID */
 	/* Elkhart Lake IDs 0x4b60 & 0x4b62 https://sata-io.org/product/8803 not tested yet */
 	{ PCI_VDEVICE(INTEL, 0x4b63), board_ahci_low_power }, /* Elkhart Lake AHCI */
+	{ PCI_VDEVICE(INTEL, 0x7ae2), board_ahci_low_power }, /* Alder Lake-P AHCI */
 
 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,