Messages in this thread Patch in this message | | | From | Mika Westerberg <> | Subject | [PATCH 18/24] thunderbolt: Store Thunderbolt generation in the switch structure | Date | Thu, 18 May 2017 17:39:08 +0300 |
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In some cases it is useful to know what is the Thunderbolt generation the switch supports. This introduces a new field to struct switch that stores the generation of the switch based on the device ID.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com> Reviewed-by: Michael Jamet <michael.jamet@intel.com> --- drivers/thunderbolt/switch.c | 24 ++++++++++++++++++++++++ drivers/thunderbolt/tb.h | 2 ++ 2 files changed, 26 insertions(+)
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 396e00ab7723..9c91d397d3b3 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -382,6 +382,28 @@ struct device_type tb_switch_type = { .release = tb_switch_release, }; +static void tb_switch_set_generation(struct tb_switch *sw) +{ + switch (sw->config.device_id) { + 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: + sw->generation = 3; + break; + + case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE: + case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE: + sw->generation = 2; + break; + + default: + sw->generation = 1; + break; + } +} + /** * tb_switch_alloc() - allocate a switch * @tb: Pointer to the owning domain @@ -442,6 +464,8 @@ struct tb_switch *tb_switch_alloc(struct tb *tb, struct device *parent, } sw->cap_plug_events = cap; + tb_switch_set_generation(sw); + device_initialize(&sw->dev); sw->dev.parent = parent; sw->dev.bus = &tb_bus_type; diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 0be989069941..b3cda7605619 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -25,6 +25,7 @@ * @device: Device ID of the switch * @vendor_name: Name of the vendor (or %NULL if not known) * @device_name: Name of the device (or %NULL if not known) + * @generation: Switch Thunderbolt generation * @cap_plug_events: Offset to the plug events capability (%0 if not found) * @is_unplugged: The switch is going away * @drom: DROM of the switch (%NULL if not found) @@ -40,6 +41,7 @@ struct tb_switch { u16 device; const char *vendor_name; const char *device_name; + unsigned int generation; int cap_plug_events; bool is_unplugged; u8 *drom; -- 2.11.0
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