linux-kernel - [PATCH] usb: typec: intel_pmc_mux: Add new ACPI ID for Meteor Lake IOM device

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Message-Id: <20220729003033.771761-1-utkarsh.h.patel@intel.com>
Date:   Thu, 28 Jul 2022 17:30:33 -0700
From:   Utkarsh Patel <utkarsh.h.patel@...el.com>
To:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Cc:     heikki.krogerus@...ux.intel.com, rajmohan.mani@...el.com,
        utkarsh.h.patel@...el.com
Subject: [PATCH] usb: typec: intel_pmc_mux: Add new ACPI ID for Meteor Lake IOM device

Intel Meteor Lake IOM uses 64bit IOM BASE address than previous Intel
Generations which use 32bit.

Added code to support 64bit IOM BASE address change with necessary ACPI
resource extraction support.

Signed-off-by: Utkarsh Patel <utkarsh.h.patel@...el.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
---
 drivers/usb/typec/mux/intel_pmc_mux.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c
index 47b733f78fb0..a8e273fe204a 100644
--- a/drivers/usb/typec/mux/intel_pmc_mux.c
+++ b/drivers/usb/typec/mux/intel_pmc_mux.c
@@ -571,9 +571,11 @@ static int pmc_usb_register_port(struct pmc_usb *pmc, int index,
 
 static int is_memory(struct acpi_resource *res, void *data)
 {
-	struct resource r;
+	struct resource_win win = {};
+	struct resource *r = &win.res;
 
-	return !acpi_dev_resource_memory(res, &r);
+	return !(acpi_dev_resource_memory(res, r) ||
+		 acpi_dev_resource_address_space(res, &win));
 }
 
 /* IOM ACPI IDs and IOM_PORT_STATUS_OFFSET */
@@ -583,6 +585,9 @@ static const struct acpi_device_id iom_acpi_ids[] = {
 
 	/* AlderLake */
 	{ "INTC1079", 0x160, },
+
+	/* Meteor Lake */
+	{ "INTC107A", 0x160, },
 	{}
 };
 
-- 
2.25.1