The designware i2c controller must be turned off before
setting the speed in IC_CON register, as stated in the
section 6.3.1 of the dw_apb_i2c_db.pdf.
Signed-off-by: NMichel Sanches <michel.sanches@st.com>
Signed-off-by: NArmando Visconti <armando.visconti@st.com>
Signed-off-by: NAmit Virdi <amit.virdi@st.com>