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| author | Andrew Morton <akpm@linux-foundation.org> | 2023-12-07 04:03:50 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-12-07 04:03:50 +0300 |
| commit | 0c92218f4e7d4b4a7245d32bea042fa6f9cc39d7 (patch) | |
| tree | 44d6ba1879278a5a1b58178e9b0f799427e52e0e /drivers/usb/misc/usb-ljca.c | |
| parent | b2f557a21bc8fffdcd65794eda8a854e024999f3 (diff) | |
| parent | 33cc938e65a98f1d29d0a18403dbbee050dcad9a (diff) | |
| download | linux-0c92218f4e7d4b4a7245d32bea042fa6f9cc39d7.tar.xz | |
Merge branch 'master' into mm-hotfixes-stable
Diffstat (limited to 'drivers/usb/misc/usb-ljca.c')
| -rw-r--r-- | drivers/usb/misc/usb-ljca.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/usb/misc/usb-ljca.c b/drivers/usb/misc/usb-ljca.c index c9decd0396d4..35770e608c64 100644 --- a/drivers/usb/misc/usb-ljca.c +++ b/drivers/usb/misc/usb-ljca.c @@ -457,8 +457,8 @@ static void ljca_auxdev_acpi_bind(struct ljca_adapter *adap, u64 adr, u8 id) { struct ljca_match_ids_walk_data wd = { 0 }; - struct acpi_device *parent, *adev; struct device *dev = adap->dev; + struct acpi_device *parent; char uid[4]; parent = ACPI_COMPANION(dev); @@ -466,17 +466,7 @@ static void ljca_auxdev_acpi_bind(struct ljca_adapter *adap, return; /* - * get auxdev ACPI handle from the ACPI device directly - * under the parent that matches _ADR. - */ - adev = acpi_find_child_device(parent, adr, false); - if (adev) { - ACPI_COMPANION_SET(&auxdev->dev, adev); - return; - } - - /* - * _ADR is a grey area in the ACPI specification, some + * Currently LJCA hw doesn't use _ADR instead the shipped * platforms use _HID to distinguish children devices. */ switch (adr) { @@ -656,10 +646,11 @@ static int ljca_enumerate_spi(struct ljca_adapter *adap) unsigned int i; int ret; + /* Not all LJCA chips implement SPI, a timeout reading the descriptors is normal */ ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_ENUM_SPI, NULL, 0, buf, sizeof(buf), true, LJCA_ENUM_CLIENT_TIMEOUT_MS); if (ret < 0) - return ret; + return (ret == -ETIMEDOUT) ? 0 : ret; /* check firmware response */ desc = (struct ljca_spi_descriptor *)buf; |