Hi! > The function mux_get_parent() uses qcom_find_src_index() to find the > parent clock index, which is incorrect: qcom_find_src_index() uses src > enum for the lookup, while mux_get_parent() should use cfg field (which > corresponds to the register value). Add qcom_find_cfg_index() function > doing this kind of lookup and use it for mux parent lookup. This appears to have problems with error handling. > +++ b/drivers/clk/qcom/clk-regmap-mux.c > @@ -36,7 +36,7 @@ static u8 mux_get_parent(struct clk_hw * > val &= mask; > > if (mux->parent_map) > - return qcom_find_src_index(hw, mux->parent_map, val); > + return qcom_find_cfg_index(hw, mux->parent_map, val); > > return val; > } So this returns u8. > +int qcom_find_cfg_index(struct clk_hw *hw, const struct parent_map *map, u8 cfg) > +{ > + int i, num_parents = clk_hw_get_num_parents(hw); > + > + for (i = 0; i < num_parents; i++) > + if (cfg == map[i].cfg) > + return i; > + > + return -ENOENT; > +} In case of error, -ENOENT will be cast to u8 in caller. I don't believe that is correct. Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Attachment:
signature.asc
Description: Digital signature