[PATCH 5.3 105/180] ACPI: LPSS: Add LNXVIDEO -> BYT I2C1 to lpss_device_links

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@xxxxxxxxxx>

commit b3b3519c04bdff91651d0a6deb79dbd4516b5d7b upstream.

Various Asus Bay Trail devices (T100TA, T100CHI, T200TA) have an embedded
controller connected to I2C1 and the iGPU (LNXVIDEO) _PS0/_PS3 methods
access it, so we need to add a consumer link from LNXVIDEO to I2C1 on
these devices to avoid suspend/resume ordering problems.

Fixes: 2d71ee0ce72f ("ACPI / LPSS: Add a device link from the GPU to the BYT I2C5 controller")
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: 4.20+ <stable@xxxxxxxxxxxxxxx> # 4.20+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/acpi/acpi_lpss.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -477,6 +477,8 @@ static const struct lpss_device_links lp
 	{"808622C1", "7", "80860F14", "3", DL_FLAG_PM_RUNTIME},
 	/* CHT iGPU depends on PMIC I2C controller */
 	{"808622C1", "7", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
+	/* BYT iGPU depends on the Embedded Controller I2C controller (UID 1) */
+	{"80860F41", "1", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
 	/* BYT CR iGPU depends on PMIC I2C controller (UID 5 on CR) */
 	{"80860F41", "5", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
 	/* BYT iGPU depends on PMIC I2C controller (UID 7 on non CR) */