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| author | Jeremy Linton <jeremy.linton@arm.com> | 2021-04-13 23:58:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-22 10:55:54 +0200 |
| commit | 2e5db2c0e508f10daa348c47c3093d34f0b865c8 (patch) | |
| tree | 02b11cd0c88ae6f3fb855a5bdd2d82e3aae1bbe6 /drivers/usb/dwc2/params.c | |
| parent | dt-bindings: usb: dwc3: Add disabling LPM for gadget (diff) | |
| download | linux-2e5db2c0e508f10daa348c47c3093d34f0b865c8.tar.xz linux-2e5db2c0e508f10daa348c47c3093d34f0b865c8.zip | |
usb: dwc2: Enable RPi in ACPI mode
The dwc2 driver has everything we need to run
in ACPI mode except for the ACPI module device table
boilerplate. With that added and identified as "BCM2848",
an id in use by other OSs for this device, the dw2
controller on the BCM2711 will work.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Link: https://lore.kernel.org/r/20210413215834.3126447-2-jeremy.linton@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2/params.c')
| -rw-r--r-- | drivers/usb/dwc2/params.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index 92df3d620f7d..7a6089fa81e1 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -232,6 +232,12 @@ const struct of_device_id dwc2_of_match_table[] = { }; MODULE_DEVICE_TABLE(of, dwc2_of_match_table); +const struct acpi_device_id dwc2_acpi_match[] = { + { "BCM2848", (kernel_ulong_t)dwc2_set_bcm_params }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, dwc2_acpi_match); + static void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg) { u8 val; @@ -866,10 +872,12 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) return 0; } +typedef void (*set_params_cb)(struct dwc2_hsotg *data); + int dwc2_init_params(struct dwc2_hsotg *hsotg) { const struct of_device_id *match; - void (*set_params)(struct dwc2_hsotg *data); + set_params_cb set_params; dwc2_set_default_params(hsotg); dwc2_get_device_properties(hsotg); @@ -878,6 +886,14 @@ int dwc2_init_params(struct dwc2_hsotg *hsotg) if (match && match->data) { set_params = match->data; set_params(hsotg); + } else { + const struct acpi_device_id *amatch; + + amatch = acpi_match_device(dwc2_acpi_match, hsotg->dev); + if (amatch && amatch->driver_data) { + set_params = (set_params_cb)amatch->driver_data; + set_params(hsotg); + } } dwc2_check_params(hsotg); |