clk: shmobile: fix setting paretn clock rate
Subsystems (2)
PATCH 1/1 clk: shmobile: fix setting paretn clock rate
If the driver needs to change a clock rate, then it must be propogated through the MSTP clock to the parent clock (such as shdi0 -> sd0). Without this we cannot up-rate default clocks which are really slow (such as the mmcif1 which defaults to 12MHz where it could be running at 97MHz)
Signed-off-by Ben Dooks <[email protected]>
--- drivers/clk/shmobile/clk-mstp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/clk/shmobile/clk-mstp.c +1 -1
@@ -139,7 +139,7 @@ cpg_mstp_clock_register(const char *name, const char *parent_name, init.name = name; init.ops = &cpg_mstp_clock_ops; - init.flags =CLK_IS_BASIC ; + init.flags =CLK_IS_BASIC |CLK_SET_RATE_PARENT ; init.parent_names = &parent_name; init.num_parents =1 ;
Signature · 1 line
1.9.0
PATCH 1/1 clk: shmobile: fix setting paretn clock rate
Quoting Ben Dooks (2014-03-31 10:47:27)
Quoted 6 lines
If the driver needs to change a clock rate, then it must be propogated through the MSTP clock to the parent clock (such as shdi0 -> sd0). Without this we cannot up-rate default clocks which are really slow (such as the mmcif1 which defaults to 12MHz where it could be running at 97MHz)
Signed-off-by Ben Dooks <[email protected]>
Taken into clk-next.
Regards,
Mike
Quoted 20 lines
--- drivers/clk/shmobile/clk-mstp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)drivers/clk/shmobile/clk-mstp.c +1
-1@@ -139,7 +139,7 @@ cpg_mstp_clock_register(const char *name, const char *parent_name, init.name = name; init.ops = &cpg_mstp_clock_ops; - init.flags =CLK_IS_BASIC ; + init.flags =CLK_IS_BASIC |CLK_SET_RATE_PARENT ; init.parent_names = &parent_name; init.num_parents =1 ;Signature · 1 line
1.9.0