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Diffstat (limited to 'drivers/i2c/busses/i2c-designware-core.h')
-rw-r--r--drivers/i2c/busses/i2c-designware-core.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index 912aa2262866..e8a756537ed0 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -61,6 +61,14 @@
* @tx_fifo_depth: depth of the hardware tx fifo
* @rx_fifo_depth: depth of the hardware rx fifo
* @rx_outstanding: current master-rx elements in tx fifo
+ * @ss_hcnt: standard speed HCNT value
+ * @ss_lcnt: standard speed LCNT value
+ * @fs_hcnt: fast speed HCNT value
+ * @fs_lcnt: fast speed LCNT value
+ *
+ * HCNT and LCNT parameters can be used if the platform knows more accurate
+ * values than the one computed based only on the input clock frequency.
+ * Leave them to be %0 if not used.
*/
struct dw_i2c_dev {
struct device *dev;
@@ -91,6 +99,10 @@ struct dw_i2c_dev {
unsigned int rx_fifo_depth;
int rx_outstanding;
u32 sda_hold_time;
+ u16 ss_hcnt;
+ u16 ss_lcnt;
+ u16 fs_hcnt;
+ u16 fs_lcnt;
};
#define ACCESS_SWAP 0x00000001