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thunderbolt: Check Intel vendor ID in tb_switch_get_generation()

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Only Intel made Thunderbolt 1-3 devices so to avoid possible confusion
check for the Intel vendor ID before deciding the device generation.
While there move the USB4 check to happen first.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Mika Westerberg 2022-12-28 09:45:35 +02:00
parent 408e1d965a
commit d589fd42cf
1 changed files with 37 additions and 36 deletions
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73
drivers/thunderbolt/switch.c
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@ -2188,46 +2188,47 @@ struct device_type tb_switch_type = {
static int tb_switch_get_generation(struct tb_switch *sw)
{
switch (sw->config.device_id) {
case PCI_DEVICE_ID_INTEL_LIGHT_RIDGE:
case PCI_DEVICE_ID_INTEL_EAGLE_RIDGE:
case PCI_DEVICE_ID_INTEL_LIGHT_PEAK:
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C:
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C:
case PCI_DEVICE_ID_INTEL_PORT_RIDGE:
case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_4C_BRIDGE:
return 1;
if (tb_switch_is_usb4(sw))
return 4;
case PCI_DEVICE_ID_INTEL_WIN_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE:
return 2;
if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) {
switch (sw->config.device_id) {
case PCI_DEVICE_ID_INTEL_LIGHT_RIDGE:
case PCI_DEVICE_ID_INTEL_EAGLE_RIDGE:
case PCI_DEVICE_ID_INTEL_LIGHT_PEAK:
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C:
case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C:
case PCI_DEVICE_ID_INTEL_PORT_RIDGE:
case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_REDWOOD_RIDGE_4C_BRIDGE:
return 1;
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE:
case PCI_DEVICE_ID_INTEL_ICL_NHI0:
case PCI_DEVICE_ID_INTEL_ICL_NHI1:
return 3;
case PCI_DEVICE_ID_INTEL_WIN_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE:
return 2;
default:
if (tb_switch_is_usb4(sw))
return 4;
/*
* For unknown switches assume generation to be 1 to be
* on the safe side.
*/
tb_sw_warn(sw, "unsupported switch device id %#x\n",
sw->config.device_id);
return 1;
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE:
case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE:
case PCI_DEVICE_ID_INTEL_ICL_NHI0:
case PCI_DEVICE_ID_INTEL_ICL_NHI1:
return 3;
}
}
/*
* For unknown switches assume generation to be 1 to be on the
* safe side.
*/
tb_sw_warn(sw, "unsupported switch device id %#x\n",
sw->config.device_id);
return 1;
}
static bool tb_switch_exceeds_max_depth(const struct tb_switch *sw, int depth)