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mb/google/zork: Clean up bt reset_gpio removal 

Clean up of bt reset_gpio removal function.

TEST=Boot and observe log showing bt reset_gpio was removed
BUG=b:157580724 - Add reset_gpio for Bluetooth

Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I1d40ad16dd3c624d4be89d9eea1835cc4e72c03d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44273
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Rob Barnes 2020-08-06 12:31:41 -06:00 committed by Aaron Durbin
parent 87093758c5
commit bb56ad449c
1 changed files with 64 additions and 65 deletions
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77
src/mainboard/google/zork/variants/baseboard/ramstage_common.c
View File

@ -127,7 +127,36 @@ void variant_audio_update(void)
update_hp_int_odl();
}
static const struct device_path xhci0_bt_path[] = {
/*
* Removes reset_gpio from usb device in device tree.
*
* debug_device_name is used for debug messaging only.
*/
static void remove_usb_device_reset_gpio(const struct device_path usb_path[],
size_t path_length, const char *debug_device_name)
{
const struct device *usb_dev;
struct drivers_usb_acpi_config *usb_cfg;
usb_dev = find_dev_nested_path(pci_root_bus(), usb_path, path_length);
if (!usb_dev) {
printk(BIOS_ERR, "%s: Failed to find %s!", __func__, debug_device_name);
return;
}
/* config_of dies on failure, so a NULL check is not required */
usb_cfg = config_of(usb_dev);
usb_cfg->reset_gpio.pin_count = 0;
}
/*
* The bluetooth device may be on XHCI0 or XHCI1 depending on SOC.
* There's no harm in removing reset_gpio from both here.
*/
static void baseboard_trembyle_remove_bluetooth_reset_gpio(void)
{
static const struct device_path xhci0_bt_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_GPP_A_DEVFN
@ -146,9 +175,8 @@ static const struct device_path xhci0_bt_path[] = {
.usb.port_type = 2,
.usb.port_id = 5
}
};
static const struct device_path xhci1_bt_path[] = {
};
static const struct device_path xhci1_bt_path[] = {
{
.type = DEVICE_PATH_PCI,
.pci.devfn = PCIE_GPP_A_DEVFN
@ -167,41 +195,12 @@ static const struct device_path xhci1_bt_path[] = {
.usb.port_type = 2,
.usb.port_id = 1
}
};
};
/*
* Removes reset_gpio from bluetooth device in device tree.
*
* The bluetooth device may be on XHCI0 or XHCI1 depending on SOC.
* There's no harm in removing from both here.
*/
static void baseboard_remove_bluetooth_reset_gpio(void)
{
const struct device *xhci0_bt_dev, *xhci1_bt_dev;
struct drivers_usb_acpi_config *xhci0_bt_cfg, *xhci1_bt_cfg;
xhci0_bt_dev = find_dev_nested_path(
pci_root_bus(), xhci0_bt_path, ARRAY_SIZE(xhci0_bt_path));
if (!xhci0_bt_dev) {
printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI0!", __func__);
return;
}
/* config_of dies on failure, so a NULL check is not required */
xhci0_bt_cfg = config_of(xhci0_bt_dev);
xhci0_bt_cfg->reset_gpio.pin_count = 0;
/* There's no bluetooth device on XHCI1 on Dalboz */
if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ))
return;
xhci1_bt_dev = find_dev_nested_path(
pci_root_bus(), xhci1_bt_path, ARRAY_SIZE(xhci1_bt_path));
if (!xhci1_bt_dev) {
printk(BIOS_ERR, "%s: Failed to find bluetooth device on XHCI1!", __func__);
return;
}
xhci1_bt_cfg = config_of(xhci1_bt_dev);
xhci1_bt_cfg->reset_gpio.pin_count = 0;
remove_usb_device_reset_gpio(xhci0_bt_path, ARRAY_SIZE(xhci0_bt_path),
"XHCI0 Bluetoth USB Device");
remove_usb_device_reset_gpio(xhci1_bt_path, ARRAY_SIZE(xhci1_bt_path),
"XHCI1 Bluetoth USB Device");
}
void variant_bluetooth_update(void)
@ -209,7 +208,7 @@ void variant_bluetooth_update(void)
if (CONFIG(BOARD_GOOGLE_BASEBOARD_DALBOZ) || variant_uses_v3_schematics())
return;
baseboard_remove_bluetooth_reset_gpio();
baseboard_trembyle_remove_bluetooth_reset_gpio();
}
void variant_touchscreen_update(void)