[PATCH] clk: imx: pll14xx: Add 756 MHz entry for PLL1443x
Marco Felsch
m.felsch at pengutronix.de
Tue Feb 17 03:12:36 PST 2026
On 26-02-17, Ian Ray wrote:
> On Tue, Feb 17, 2026 at 10:54:49AM +0100, Marco Felsch wrote:
> > CAUTION: This email originated from outside of GE HealthCare. Only open links or attachments if you trust the sender. Report suspicious emails using Outlook’s “Report” button.
> >
> > Hi Ian,
> >
> > On 26-02-17, Ian Ray wrote:
> > > The PLL1443x is used to implement VIDEO_PLL1 on i.MX8MP and can be used
> > > for dual-channel LVDS displays. Add new rate 756 MHz, which divides by
> > > 7 to provide 108 MHz LVDS pixel clock, and by 2 for 378 MHz LDB clock.
> >
> > the on-demand rate calculation doe for the PLL1443X PLLs is not
> > sufficient for you?
>
> Apologies! The on-demand rate calculation does indeed work. So please
> ignore this patch.
>
> (The patch was needed on kernel 6.12 IIRC, and I automatically re-based
> it on 6.18 without re-testing. Once again, apologies for the noise.)
No worries, sometimes there are needs to very specific PLL setting due
to emc or so but these are rare cases and therefore I asked :)
Regards,
Marco
>
> >
> > Regards,
> > Marco
> >
> >
> > >
> > > Signed-off-by: Ian Ray <ian.ray at gehealthcare.com>
> > > ---
> > > drivers/clk/imx/clk-pll14xx.c | 1 +
> > > 1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/clk/imx/clk-pll14xx.c b/drivers/clk/imx/clk-pll14xx.c
> > > index 36d0e80b55b8..84279cf9f12b 100644
> > > --- a/drivers/clk/imx/clk-pll14xx.c
> > > +++ b/drivers/clk/imx/clk-pll14xx.c
> > > @@ -63,6 +63,7 @@ static const struct imx_pll14xx_rate_table imx_pll1416x_tbl[] = {
> > >
> > > static const struct imx_pll14xx_rate_table imx_pll1443x_tbl[] = {
> > > PLL_1443X_RATE(1039500000U, 173, 2, 1, 16384),
> > > + PLL_1443X_RATE(756000000U, 252, 2, 2, 0),
> > > PLL_1443X_RATE(650000000U, 325, 3, 2, 0),
> > > PLL_1443X_RATE(594000000U, 198, 2, 2, 0),
> > > PLL_1443X_RATE(519750000U, 173, 2, 2, 16384),
> > > --
> > > 2.49.0
> > >
> > >
> > >
> >
> > --
> > #gernperDu
> > #CallMeByMyFirstName
> >
> > Pengutronix e.K. | |
> > Steuerwalder Str. 21 | https://www.pengutronix.de/ |
> > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |
>
--
#gernperDu
#CallMeByMyFirstName
Pengutronix e.K. | |
Steuerwalder Str. 21 | https://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-9 |
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