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usb: typec: intel_pmc_mux: Update IOM port status offset for AlderLake
Intel AlderLake(ADL) IOM has a different IOM port status offset than Intel TigerLake. Add a new ACPI ID for ADL and use the IOM port status offset as per the platform. Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Azhar Shaikh <azhar.shaikh@intel.com> Link: https://lore.kernel.org/r/20210601035843.71150-1-azhar.shaikh@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 23 additions and 5 deletions
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@ -83,8 +83,6 @@ enum {
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/*
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* Input Output Manager (IOM) PORT STATUS
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*/
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#define IOM_PORT_STATUS_OFFSET 0x560
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#define IOM_PORT_STATUS_ACTIVITY_TYPE_MASK GENMASK(9, 6)
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#define IOM_PORT_STATUS_ACTIVITY_TYPE_SHIFT 6
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#define IOM_PORT_STATUS_ACTIVITY_TYPE_USB 0x03
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@ -144,6 +142,7 @@ struct pmc_usb {
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struct pmc_usb_port *port;
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struct acpi_device *iom_adev;
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void __iomem *iom_base;
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u32 iom_port_status_offset;
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};
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static void update_port_status(struct pmc_usb_port *port)
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@ -153,7 +152,8 @@ static void update_port_status(struct pmc_usb_port *port)
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/* SoC expects the USB Type-C port numbers to start with 0 */
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port_num = port->usb3_port - 1;
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port->iom_status = readl(port->pmc->iom_base + IOM_PORT_STATUS_OFFSET +
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port->iom_status = readl(port->pmc->iom_base +
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port->pmc->iom_port_status_offset +
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port_num * sizeof(u32));
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}
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@ -559,14 +559,32 @@ static int is_memory(struct acpi_resource *res, void *data)
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return !acpi_dev_resource_memory(res, &r);
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}
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/* IOM ACPI IDs and IOM_PORT_STATUS_OFFSET */
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static const struct acpi_device_id iom_acpi_ids[] = {
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/* TigerLake */
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{ "INTC1072", 0x560, },
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/* AlderLake */
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{ "INTC1079", 0x160, },
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{}
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};
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static int pmc_usb_probe_iom(struct pmc_usb *pmc)
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{
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struct list_head resource_list;
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struct resource_entry *rentry;
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struct acpi_device *adev;
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static const struct acpi_device_id *dev_id;
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struct acpi_device *adev = NULL;
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int ret;
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adev = acpi_dev_get_first_match_dev("INTC1072", NULL, -1);
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for (dev_id = &iom_acpi_ids[0]; dev_id->id[0]; dev_id++) {
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if (acpi_dev_present(dev_id->id, NULL, -1)) {
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pmc->iom_port_status_offset = (u32)dev_id->driver_data;
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adev = acpi_dev_get_first_match_dev(dev_id->id, NULL, -1);
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break;
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}
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}
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if (!adev)
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return -ENODEV;
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