mirros/rockchip-kernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

i3c: Drop support for I2C 10 bit addresing

Browse Source 
This patch drops support for I2C devices with 10 bit addressing. When I2C
device with 10 bit address is defined in DT, I3C master registration fails.

Address space for I2C devices has been reduced and ->i2c_funcs() hook has been
removed.

Because this patch series dropped support for 10 bit I2C devices, support is
also dropped in Cadence I3C master driver and Synopsys DesignWare I3C master
driver.

Signed-off-by: Przemyslaw Gaj <pgaj@cadence.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
This commit is contained in:
Przemyslaw Gaj
2019-04-16 09:36:14 +01:00
committed by Boris Brezillon
parent a188339ca5
commit 88c5032244
4 changed files with 16 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/linux/i3c/master.h
View File

@@ -48,7 +48,7 @@ struct i3c_i2c_dev_desc {
#define I3C_LVR_I2C_INDEX(x) ((x) << 5)
#define I3C_LVR_I2C_FM_MODE BIT(4)
#define I2C_MAX_ADDR GENMASK(9, 0)
#define I2C_MAX_ADDR GENMASK(6, 0)
/**
* struct i2c_dev_boardinfo - I2C device board information
@@ -390,8 +390,6 @@ struct i3c_bus {
* and i2c_put_dma_safe_msg_buf() helpers provided by the I2C
* framework.
* This method is mandatory.
* @i2c_funcs: expose the supported I2C functionalities.
* This method is mandatory.
* @request_ibi: attach an IBI handler to an I3C device. This implies defining
* an IBI handler and the constraints of the IBI (maximum payload
* length and number of pre-allocated slots).
@@ -437,7 +435,6 @@ struct i3c_master_controller_ops {
void (*detach_i2c_dev)(struct i2c_dev_desc *dev);
int (*i2c_xfers)(struct i2c_dev_desc *dev,
const struct i2c_msg *xfers, int nxfers);
u32 (*i2c_funcs)(struct i3c_master_controller *master);
int (*request_ibi)(struct i3c_dev_desc *dev,
const struct i3c_ibi_setup *req);
void (*free_ibi)(struct i3c_dev_desc *dev);