quirks: recognize SPI bus

Apple MacBooks (Broadwell/Skylake/Kaby Lake and Apple Silicon)
use SPI to communicate with the keyboard and trackpad.

Signed-off-by: Greg V <greg@unrelenting.technology>

diff --git a/src/quirks.c b/src/quirks.c
index 9d90389..26131a8 100644 (file)
--- a/src/quirks.c
+++ b/src/quirks.c
@@ -111,6 +111,7 @@ enum bustype {
        BT_PS2,
        BT_RMI,
        BT_I2C,
+       BT_SPI,
 };
 
 enum udev_type {
@@ -499,6 +500,8 @@ parse_match(struct quirks_context *ctx,
                        s->match.bus = BT_RMI;
                else if (streq(value, "i2c"))
                        s->match.bus = BT_I2C;
+               else if (streq(value, "spi"))
+                       s->match.bus = BT_SPI;
                else
                        goto out;
        } else if (streq(key, "MatchVendor")) {
@@ -1241,6 +1244,10 @@ match_fill_bus_vid_pid(struct match *m,
                m->bus = BT_I2C;
                m->bits |= M_BUS;
                break;
+       case BUS_SPI:
+               m->bus = BT_SPI;
+               m->bits |= M_BUS;
+               break;
        default:
                break;
        }