diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2020-06-29 10:34:06 +0200 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2020-07-07 16:01:23 +0200 |
| commit | 03fb03842a1e16f89477d4a968712cc2422be217 (patch) | |
| tree | 419a34f964dfc4aa2d31f89fc74e2c5da89c73cc /board/st/common | |
| parent | d5d726d3cc47691ace3c68fa31147ad104aaf579 (diff) | |
| download | u-boot-03fb03842a1e16f89477d4a968712cc2422be217.tar.gz u-boot-03fb03842a1e16f89477d4a968712cc2422be217.tar.xz u-boot-03fb03842a1e16f89477d4a968712cc2422be217.zip | |
board: st: move type-c stusb1600 controller code in a driver
Migrate the ST Microelectronics STUSB160X Type-C controller code in
a generic I2C driver in st/common, based on Linux one in :
drivers/usb/typec/stusb160x.c
This patch simplifies the stm32mp1 board code and allows to reuse
this STUSB160X driver in other boards.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Diffstat (limited to 'board/st/common')
| -rw-r--r-- | board/st/common/Kconfig | 7 | ||||
| -rw-r--r-- | board/st/common/Makefile | 2 | ||||
| -rw-r--r-- | board/st/common/stusb160x.c | 46 | ||||
| -rw-r--r-- | board/st/common/stusb160x.h | 10 |
4 files changed, 65 insertions, 0 deletions
diff --git a/board/st/common/Kconfig b/board/st/common/Kconfig index 750dbb6451..ddcf33a122 100644 --- a/board/st/common/Kconfig +++ b/board/st/common/Kconfig @@ -69,3 +69,10 @@ config DFU_ALT_RAM0 depends on ARCH_STM32MP && SET_DFU_ALT_INFO help This defines the partitions of ram used to build dfu dynamically. + +config TYPEC_STUSB160X + tristate "STMicroelectronics STUSB160X Type-C controller driver" + depends on DM_I2C + help + Say Y if your system has STMicroelectronics STUSB160X Type-C port + controller. diff --git a/board/st/common/Makefile b/board/st/common/Makefile index 012bfbbe8e..65bbebd6ab 100644 --- a/board/st/common/Makefile +++ b/board/st/common/Makefile @@ -10,3 +10,5 @@ ifeq ($(CONFIG_ARCH_STM32MP),y) obj-$(CONFIG_SYS_MTDPARTS_RUNTIME) += stm32mp_mtdparts.o obj-$(CONFIG_SET_DFU_ALT_INFO) += stm32mp_dfu.o endif + +obj-$(CONFIG_TYPEC_STUSB160X) += stusb160x.o diff --git a/board/st/common/stusb160x.c b/board/st/common/stusb160x.c new file mode 100644 index 0000000000..f1197f9faa --- /dev/null +++ b/board/st/common/stusb160x.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * STMicroelectronics STUSB Type-C controller driver + * based on Linux drivers/usb/typec/stusb160x.c + * + * Copyright (C) 2020, STMicroelectronics - All Rights Reserved + */ + +#include <common.h> +#include <dm.h> +#include <i2c.h> + +/* REGISTER */ +#define STUSB160X_CC_CONNECTION_STATUS 0x0E + +/* STUSB160X_CC_CONNECTION_STATUS bitfields */ +#define STUSB160X_CC_ATTACH BIT(0) + +int stusb160x_cable_connected(void) +{ + struct udevice *dev; + int ret; + + ret = uclass_get_device_by_driver(UCLASS_I2C_GENERIC, + DM_GET_DRIVER(stusb160x), + &dev); + if (ret < 0) + return ret; + + ret = dm_i2c_reg_read(dev, STUSB160X_CC_CONNECTION_STATUS); + if (ret < 0) + return 0; + + return ret & STUSB160X_CC_ATTACH; +} + +static const struct udevice_id stusb160x_ids[] = { + { .compatible = "st,stusb1600" }, + {} +}; + +U_BOOT_DRIVER(stusb160x) = { + .name = "stusb160x", + .id = UCLASS_I2C_GENERIC, + .of_match = stusb160x_ids, +}; diff --git a/board/st/common/stusb160x.h b/board/st/common/stusb160x.h new file mode 100644 index 0000000000..fe39840b41 --- /dev/null +++ b/board/st/common/stusb160x.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020, STMicroelectronics + */ + +#ifdef CONFIG_TYPEC_STUSB160X +int stusb160x_cable_connected(void); +#else +int stusb160x_cable_connected(void) { return -ENODEV; } +#endif |