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-rw-r--r--drivers/i3c/master.c21
-rw-r--r--drivers/i3c/master/dw-i3c-master.c6
-rw-r--r--drivers/i3c/master/i3c-master-cdns.c10
-rw-r--r--include/linux/i3c/master.h5
4 files changed, 16 insertions, 26 deletions
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 5f4bd52121fe..b9d2b88928e1 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1963,6 +1963,16 @@ of_i3c_master_add_i2c_boardinfo(struct i3c_master_controller *master,
if (ret)
return ret;
+ /*
+ * The I3C Specification does not clearly say I2C devices with 10-bit
+ * address are supported. These devices can't be passed properly through
+ * DEFSLVS command.
+ */
+ if (boardinfo->base.flags & I2C_CLIENT_TEN) {
+ dev_err(&master->dev, "I2C device with 10 bit address not supported.");
+ return -ENOTSUPP;
+ }
+
/* LVR is encoded in reg[2]. */
boardinfo->lvr = reg[2];
@@ -2111,16 +2121,14 @@ static int i3c_master_i2c_adapter_xfer(struct i2c_adapter *adap,
return ret ? ret : nxfers;
}
-static u32 i3c_master_i2c_functionalities(struct i2c_adapter *adap)
+static u32 i3c_master_i2c_funcs(struct i2c_adapter *adapter)
{
- struct i3c_master_controller *master = i2c_adapter_to_i3c_master(adap);
-
- return master->ops->i2c_funcs(master);
+ return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C;
}
static const struct i2c_algorithm i3c_master_i2c_algo = {
.master_xfer = i3c_master_i2c_adapter_xfer,
- .functionality = i3c_master_i2c_functionalities,
+ .functionality = i3c_master_i2c_funcs,
};
static int i3c_master_i2c_adapter_init(struct i3c_master_controller *master)
@@ -2379,8 +2387,7 @@ EXPORT_SYMBOL_GPL(i3c_generic_ibi_recycle_slot);
static int i3c_master_check_ops(const struct i3c_master_controller_ops *ops)
{
if (!ops || !ops->bus_init || !ops->priv_xfers ||
- !ops->send_ccc_cmd || !ops->do_daa || !ops->i2c_xfers ||
- !ops->i2c_funcs)
+ !ops->send_ccc_cmd || !ops->do_daa || !ops->i2c_xfers)
return -EINVAL;
if (ops->request_ibi &&
diff --git a/drivers/i3c/master/dw-i3c-master.c b/drivers/i3c/master/dw-i3c-master.c
index 1d83c97431c7..d6e517e69f84 100644
--- a/drivers/i3c/master/dw-i3c-master.c
+++ b/drivers/i3c/master/dw-i3c-master.c
@@ -1060,11 +1060,6 @@ static void dw_i3c_master_detach_i2c_dev(struct i2c_dev_desc *dev)
kfree(data);
}
-static u32 dw_i3c_master_i2c_funcs(struct i3c_master_controller *m)
-{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
-}
-
static irqreturn_t dw_i3c_master_irq_handler(int irq, void *dev_id)
{
struct dw_i3c_master *master = dev_id;
@@ -1099,7 +1094,6 @@ static const struct i3c_master_controller_ops dw_mipi_i3c_ops = {
.attach_i2c_dev = dw_i3c_master_attach_i2c_dev,
.detach_i2c_dev = dw_i3c_master_detach_i2c_dev,
.i2c_xfers = dw_i3c_master_i2c_xfers,
- .i2c_funcs = dw_i3c_master_i2c_funcs,
};
static int dw_i3c_probe(struct platform_device *pdev)
diff --git a/drivers/i3c/master/i3c-master-cdns.c b/drivers/i3c/master/i3c-master-cdns.c
index 8889a4fdb454..237f24adddc6 100644
--- a/drivers/i3c/master/i3c-master-cdns.c
+++ b/drivers/i3c/master/i3c-master-cdns.c
@@ -864,11 +864,6 @@ static int cdns_i3c_master_i2c_xfers(struct i2c_dev_desc *dev,
return ret;
}
-static u32 cdns_i3c_master_i2c_funcs(struct i3c_master_controller *m)
-{
- return I2C_FUNC_SMBUS_EMUL | I2C_FUNC_I2C | I2C_FUNC_10BIT_ADDR;
-}
-
struct cdns_i3c_i2c_dev_data {
u16 id;
s16 ibi;
@@ -1010,9 +1005,7 @@ static int cdns_i3c_master_attach_i2c_dev(struct i2c_dev_desc *dev)
master->free_rr_slots &= ~BIT(slot);
i2c_dev_set_master_data(dev, data);
- writel(prepare_rr0_dev_address(dev->boardinfo->base.addr) |
- (dev->boardinfo->base.flags & I2C_CLIENT_TEN ?
- DEV_ID_RR0_LVR_EXT_ADDR : 0),
+ writel(prepare_rr0_dev_address(dev->boardinfo->base.addr),
master->regs + DEV_ID_RR0(data->id));
writel(dev->boardinfo->lvr, master->regs + DEV_ID_RR2(data->id));
writel(readl(master->regs + DEVS_CTRL) |
@@ -1518,7 +1511,6 @@ static const struct i3c_master_controller_ops cdns_i3c_master_ops = {
.send_ccc_cmd = cdns_i3c_master_send_ccc_cmd,
.priv_xfers = cdns_i3c_master_priv_xfers,
.i2c_xfers = cdns_i3c_master_i2c_xfers,
- .i2c_funcs = cdns_i3c_master_i2c_funcs,
.enable_ibi = cdns_i3c_master_enable_ibi,
.disable_ibi = cdns_i3c_master_disable_ibi,
.request_ibi = cdns_i3c_master_request_ibi,
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h
index f13fd8b1dd79..eca8337bdaa5 100644
--- a/include/linux/i3c/master.h
+++ b/include/linux/i3c/master.h
@@ -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);