| Message ID | 20240906-fix_clk-v1-2-2977ef0d72e7@amlogic.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | clk: meson: Fix an issue with inaccurate hifi_pll frequency | expand |
On Fri 06 Sep 2024 at 13:52, Chuan Liu via B4 Relay <devnull+chuan.liu.amlogic.com@kernel.org> wrote: > From: Chuan Liu <chuan.liu@amlogic.com> The patch title is not good. the clock innacurate ... Ok, but you are doing something about it, right ? Plus just saying that is a bit vague. How about something like "fix frac maximum value" ? This what you are doing, right ? > > The fractional denominator of C3's hifi_pll fractional multiplier is > fixed to 100000, so flag CLK_MESON_PLL_FIXED_FRAC_MAX is added. > > Fixes: 8a9a129dc565 ("clk: meson: c3: add support for the C3 SoC PLL clock") > Signed-off-by: Chuan Liu <chuan.liu@amlogic.com> > --- > drivers/clk/meson/c3-pll.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c > index 32bd2ed9d304..a350173efe90 100644 > --- a/drivers/clk/meson/c3-pll.c > +++ b/drivers/clk/meson/c3-pll.c > @@ -361,6 +361,7 @@ static struct clk_regmap hifi_pll_dco = { > .range = &c3_gp0_pll_mult_range, > .init_regs = c3_hifi_init_regs, > .init_count = ARRAY_SIZE(c3_hifi_init_regs), > + .flags = CLK_MESON_PLL_FIXED_FRAC_MAX, > }, > .hw.init = &(struct clk_init_data) { > .name = "hifi_pll_dco",
On 2024/9/6 14:55, Jerome Brunet wrote: > [ EXTERNAL EMAIL ] > > On Fri 06 Sep 2024 at 13:52, Chuan Liu via B4 Relay <devnull+chuan.liu.amlogic.com@kernel.org> wrote: > >> From: Chuan Liu <chuan.liu@amlogic.com> > The patch title is not good. the clock innacurate ... Ok, but you are doing > something about it, right ? Plus just saying that is a bit vague. > > How about something like "fix frac maximum value" ? This what you are > doing, right ? Right, Fix in next version. >> The fractional denominator of C3's hifi_pll fractional multiplier is >> fixed to 100000, so flag CLK_MESON_PLL_FIXED_FRAC_MAX is added. >> >> Fixes: 8a9a129dc565 ("clk: meson: c3: add support for the C3 SoC PLL clock") >> Signed-off-by: Chuan Liu <chuan.liu@amlogic.com> >> --- >> drivers/clk/meson/c3-pll.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c >> index 32bd2ed9d304..a350173efe90 100644 >> --- a/drivers/clk/meson/c3-pll.c >> +++ b/drivers/clk/meson/c3-pll.c >> @@ -361,6 +361,7 @@ static struct clk_regmap hifi_pll_dco = { >> .range = &c3_gp0_pll_mult_range, >> .init_regs = c3_hifi_init_regs, >> .init_count = ARRAY_SIZE(c3_hifi_init_regs), >> + .flags = CLK_MESON_PLL_FIXED_FRAC_MAX, >> }, >> .hw.init = &(struct clk_init_data) { >> .name = "hifi_pll_dco", > -- > Jerome
diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c index 32bd2ed9d304..a350173efe90 100644 --- a/drivers/clk/meson/c3-pll.c +++ b/drivers/clk/meson/c3-pll.c @@ -361,6 +361,7 @@ static struct clk_regmap hifi_pll_dco = { .range = &c3_gp0_pll_mult_range, .init_regs = c3_hifi_init_regs, .init_count = ARRAY_SIZE(c3_hifi_init_regs), + .flags = CLK_MESON_PLL_FIXED_FRAC_MAX, }, .hw.init = &(struct clk_init_data) { .name = "hifi_pll_dco",