| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/platform/bus.h> |
| #include <fbl/algorithm.h> |
| #include <soc/mt8167/mt8167-hw.h> |
| |
| #include "mt8167.h" |
| |
| namespace board_mt8167 { |
| |
| zx_status_t Mt8167::BacklightInit() { |
| if (board_info_.vid != PDEV_VID_GOOGLE || board_info_.pid != PDEV_PID_CLEO) { |
| return ZX_OK; |
| } |
| |
| // Add a composite device |
| constexpr zx_bind_inst_t root_match[] = { |
| BI_MATCH(), |
| }; |
| constexpr zx_bind_inst_t i2c_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_I2C), |
| BI_ABORT_IF(NE, BIND_I2C_BUS_ID, 2), |
| BI_MATCH_IF(EQ, BIND_I2C_ADDRESS, 0x36), |
| }; |
| constexpr zx_bind_inst_t gpio_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO), |
| BI_MATCH_IF(EQ, BIND_GPIO_PIN, MT8167_CLEO_GPIO_LCM_EN), |
| }; |
| const device_component_part_t i2c_component[] = { |
| { fbl::count_of(root_match), root_match }, |
| { fbl::count_of(i2c_match), i2c_match }, |
| }; |
| const device_component_part_t gpio_component[] = { |
| { fbl::count_of(root_match), root_match }, |
| { fbl::count_of(gpio_match), gpio_match }, |
| }; |
| const device_component_t components[] = { |
| { fbl::count_of(i2c_component), i2c_component }, |
| { fbl::count_of(gpio_component), gpio_component }, |
| }; |
| |
| const zx_device_prop_t props[] = { |
| { BIND_PLATFORM_DEV_VID, 0, PDEV_VID_GENERIC }, |
| { BIND_PLATFORM_DEV_PID, 0, PDEV_PID_GENERIC }, |
| { BIND_PLATFORM_DEV_DID, 0, PDEV_DID_SG_MICRO_SGM37603A }, |
| }; |
| |
| auto status = DdkAddComposite("sgm37603a", props, fbl::count_of(props), components, |
| fbl::count_of(components), UINT32_MAX); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: Failed to add SGM37603A device: %d\n", __FUNCTION__, status); |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace board_mt8167 |