| Message ID | 20210118000912.28116-1-andre.przywara@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3] clk: sunxi-ng: h6: Fix clock divider range on some clocks | expand |
On Mon, Jan 18, 2021 at 12:09:12AM +0000, Andre Przywara wrote: > While comparing clocks between the H6 and H616, some of the M factor > ranges were found to be wrong: the manual says they are only covering > two bits [1:0], but our code had "5" in the number-of-bits field. > > By writing 0xff into that register in U-Boot and via FEL, it could be > confirmed that bits [4:2] are indeed masked off, so the manual is right. > > Change to number of bits in the affected clock's description. > > Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU") > Signed-off-by: Andre Przywara <andre.przywara@arm.com> > Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> Applied, thanks Maxime
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index a26dbbdff80d..bff446b78290 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -237,7 +237,7 @@ static const char * const psi_ahb1_ahb2_parents[] = { "osc24M", "osc32k", static SUNXI_CCU_MP_WITH_MUX(psi_ahb1_ahb2_clk, "psi-ahb1-ahb2", psi_ahb1_ahb2_parents, 0x510, - 0, 5, /* M */ + 0, 2, /* M */ 8, 2, /* P */ 24, 2, /* mux */ 0); @@ -246,19 +246,19 @@ static const char * const ahb3_apb1_apb2_parents[] = { "osc24M", "osc32k", "psi-ahb1-ahb2", "pll-periph0" }; static SUNXI_CCU_MP_WITH_MUX(ahb3_clk, "ahb3", ahb3_apb1_apb2_parents, 0x51c, - 0, 5, /* M */ + 0, 2, /* M */ 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb1_clk, "apb1", ahb3_apb1_apb2_parents, 0x520, - 0, 5, /* M */ + 0, 2, /* M */ 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", ahb3_apb1_apb2_parents, 0x524, - 0, 5, /* M */ + 0, 2, /* M */ 8, 2, /* P */ 24, 2, /* mux */ 0);
While comparing clocks between the H6 and H616, some of the M factor ranges were found to be wrong: the manual says they are only covering two bits [1:0], but our code had "5" in the number-of-bits field. By writing 0xff into that register in U-Boot and via FEL, it could be confirmed that bits [4:2] are indeed masked off, so the manual is right. Change to number of bits in the affected clock's description. Fixes: 524353ea480b ("clk: sunxi-ng: add support for the Allwinner H6 CCU") Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> --- Splitting this off from the H616 series, since there is no dependency to it. drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)