diff options
| author | Simon Glass <sjg@chromium.org> | 2020-09-22 12:45:01 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-09-25 11:27:15 +0800 |
| commit | fd42f263cef9fd6bba9ded76a82d4ac66450e156 (patch) | |
| tree | 64bc139fe69c2d50a6200ccda1f1c521e45643b4 /drivers/i2c/i2c-uclass.c | |
| parent | bddbaf5edf0e01817f2577295c3d682e4d5fed09 (diff) | |
i2c: Add a generic driver to generate ACPI info
Many I2C devices produce roughly the same ACPI data with just things like
the GPIO/interrupt information being different.
This can be handled by a generic driver along with some information in the
device tree.
Add a generic i2c driver for this purpose.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'drivers/i2c/i2c-uclass.c')
| -rw-r--r-- | drivers/i2c/i2c-uclass.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index 2373aa2ea4..5c4626b044 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -9,6 +9,8 @@ #include <i2c.h> #include <log.h> #include <malloc.h> +#include <acpi/acpi_device.h> +#include <dm/acpi.h> #include <dm/device-internal.h> #include <dm/lists.h> #include <dm/pinctrl.h> @@ -16,6 +18,7 @@ #include <asm/gpio.h> #endif #include <linux/delay.h> +#include "acpi_i2c.h" #define I2C_MAX_OFFSET_LEN 4 @@ -749,7 +752,21 @@ UCLASS_DRIVER(i2c_generic) = { .name = "i2c_generic", }; +static const struct udevice_id generic_chip_i2c_ids[] = { + { .compatible = "i2c-chip", .data = I2C_DEVICE_GENERIC }, +#if CONFIG_IS_ENABLED(ACPIGEN) + { .compatible = "hid-over-i2c", .data = I2C_DEVICE_HID_OVER_I2C }, +#endif + { } +}; + U_BOOT_DRIVER(i2c_generic_chip_drv) = { .name = "i2c_generic_chip_drv", .id = UCLASS_I2C_GENERIC, + .of_match = generic_chip_i2c_ids, +#if CONFIG_IS_ENABLED(ACPIGEN) + .ofdata_to_platdata = acpi_i2c_ofdata_to_platdata, + .priv_auto_alloc_size = sizeof(struct acpi_i2c_priv), +#endif + ACPI_OPS_PTR(&acpi_i2c_ops) }; |