Ah one remark, reviewing the patch 2, i saw you added a pr_err() in case of error, perhaps you can add one here also. Patrice On 12/15/21 11:03 AM, Patrice CHOTARD wrote: > Hi Alain > > On 12/2/21 8:28 AM, Alain Volmat wrote: >> In order to avoid having duplicated addresses within the DT, >> only have one unit-address per clockgen and each driver within >> the clockgen should look at the parent node (overall clockgen) >> to figure out the reg property. Such behavior is already in >> place in other STi platform clock drivers such as clk-flexgen >> and clkgen-pll. Keep backward compatibility by first looking >> at reg within the node before looking into the parent node. >> >> Signed-off-by: Alain Volmat <avolmat@xxxxxx> >> --- >> drivers/clk/st/clkgen-fsyn.c | 11 +++++++++-- >> 1 file changed, 9 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c >> index 164285d6be97..0d41164f2c7f 100644 >> --- a/drivers/clk/st/clkgen-fsyn.c >> +++ b/drivers/clk/st/clkgen-fsyn.c >> @@ -988,9 +988,16 @@ static void __init st_of_quadfs_setup(struct device_node *np, >> void __iomem *reg; >> spinlock_t *lock; >> >> + /* >> + * First check for reg property within the node to keep backward >> + * compatibility, then if reg doesn't exist look at the parent node >> + */ >> reg = of_iomap(np, 0); >> - if (!reg) >> - return; >> + if (!reg) { >> + reg = of_iomap(of_get_parent(np), 0); >> + if (!reg) >> + return; >> + } >> >> clk_parent_name = of_clk_get_parent_name(np, 0); >> if (!clk_parent_name) >> > Reviewed-by: Patrice Chotard <patrice.chotard@xxxxxxxxxxx> > > Thanks > Patrice >