diff options
Diffstat (limited to 'include/linux/i3c/master.h')
| -rw-r--r-- | include/linux/i3c/master.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h index 2a1ed05d5782..12d532b012c5 100644 --- a/include/linux/i3c/master.h +++ b/include/linux/i3c/master.h @@ -298,7 +298,9 @@ enum i3c_open_drain_speed { * @I3C_ADDR_SLOT_I2C_DEV: address is assigned to an I2C device * @I3C_ADDR_SLOT_I3C_DEV: address is assigned to an I3C device * @I3C_ADDR_SLOT_STATUS_MASK: address slot mask - * + * @I3C_ADDR_SLOT_EXT_STATUS_MASK: address slot mask with extended information + * @I3C_ADDR_SLOT_EXT_DESIRED: the bitmask represents addresses that are preferred by some devices, + * such as the "assigned-address" property in a device tree source. * On an I3C bus, addresses are assigned dynamically, and we need to know which * addresses are free to use and which ones are already assigned. * @@ -311,8 +313,12 @@ enum i3c_addr_slot_status { I3C_ADDR_SLOT_I2C_DEV, I3C_ADDR_SLOT_I3C_DEV, I3C_ADDR_SLOT_STATUS_MASK = 3, + I3C_ADDR_SLOT_EXT_STATUS_MASK = 7, + I3C_ADDR_SLOT_EXT_DESIRED = BIT(2), }; +#define I3C_ADDR_SLOT_STATUS_BITS 4 + /** * struct i3c_bus - I3C bus object * @cur_master: I3C master currently driving the bus. Since I3C is multi-master @@ -354,7 +360,7 @@ enum i3c_addr_slot_status { struct i3c_bus { struct i3c_dev_desc *cur_master; int id; - unsigned long addrslots[((I2C_MAX_ADDR + 1) * 2) / BITS_PER_LONG]; + unsigned long addrslots[((I2C_MAX_ADDR + 1) * I3C_ADDR_SLOT_STATUS_BITS) / BITS_PER_LONG]; enum i3c_bus_mode mode; struct { unsigned long i3c; |