mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

usb: dwc3: pci: Don't set "linux,phy_charger_detect" property on Lenovo Yoga Tab2 1380 

[ Upstream commit 0fb782b5d5 ]

The Lenovo Yoga Tablet 2 Pro 1380 model is the exception to the rule that
devices which use the Crystal Cove PMIC without using ACPI for battery and
AC power_supply class support use the USB-phy for charger detection.

Unlike the Lenovo Yoga Tablet 2 830 / 1050 models this model has an extra
LC824206XA Micro USB switch which does the charger detection.

Add a DMI quirk to not set the "linux,phy_charger_detect" property on
the 1380 model. This quirk matches on the BIOS version to differentiate
the 1380 model from the 830 and 1050 models which otherwise have
the same DMI strings.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20240406140127.17885-1-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede 2024-04-06 16:01:27 +02:00 committed by Greg Kroah-Hartman
parent e151ae1ee0
commit eba944dffe
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/usb/dwc3/dwc3-pci.c
View File

@ -8,6 +8,7 @@
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*/
#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
@ -220,6 +221,7 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc,
if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
struct gpio_desc *gpio;
const char *bios_ver;
int ret;
/* On BYT the FW does not always enable the refclock */
@ -277,8 +279,12 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc,
* detection. These can be identified by them _not_
* using the standard ACPI battery and ac drivers.
*/
bios_ver = dmi_get_system_info(DMI_BIOS_VERSION);
if (acpi_dev_present("INT33FD", "1", 2) &&
acpi_quirk_skip_acpi_ac_and_battery()) {
acpi_quirk_skip_acpi_ac_and_battery() &&
/* Lenovo Yoga Tablet 2 Pro 1380 uses LC824206XA instead */
!(bios_ver &&
strstarts(bios_ver, "BLADE_21.X64.0005.R00.1504101516"))) {
dev_info(&pdev->dev, "Using TUSB1211 phy for charger detection\n");
swnode = &dwc3_pci_intel_phy_charger_detect_swnode;
}