[PATCH RESEND] ARM: imx: clk-vf610: define PLL's clock tree

Shawn Guo
2014-11-03T03:39:08Z

On Mon, Oct 27, 2014 at 05:40:44PM +0100, Stefan Agner wrote:
> So far, the required PLL's (PLL1/PLL2/PLL5) have been initialized
> by boot loader and the kernel code defined fixed rates according
> to those default configurations. Beginning with the USB PLL7 the
> code started to initialize the PLL's itself (using imx_clk_pllv3).
>
> However, since commit dc4805c2e78ba5a22ea1632f3e3e4ee601a1743b
> (ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver)
> imx_clk_pllv3 no longer takes care of the ENABLE and BYPASS bits,
> hence the USB PLL were not configured correctly anymore.

Sorry for that.

>
> This patch not only fixes those USB PLL's, but also makes use of
> the imx_clk_pllv3 for all PLL's and alignes the code with the PLL
> support of the i.MX6 series.
>
> Signed-off-by: Stefan Agner <stefan@agner.ch>
> ---
> Shawn, I sent this almost 1 month ago, along with a mail asking
> of the state a week ago. But both to your old e-mail, I guess you
> didn't received it then...?

> Also some other Vybrid related patches,
> shall I resend them with your new e-mail?

Yes, resending them helps.

>
> If possible, it still would be great if this makes it into 3.18.
> Right now, because of the clk-pllv3 change, the newly added USB
> support is broken...
>
> I could have created a patch which only fixes the USB PLL7, but
> then we touch the header file twice and its getting a mess in
> there. I prefer to have it fixed once for all PLL's. I hope this
> makes it into 3.18 nonetheless. If not, I'm also fine if this
> makes it into next.

The diff looks a little bit big, but it does fix a regression, so let
me try to send it for 3.18.

Thanks for the fixing.

Shawn

>
> arch/arm/mach-imx/clk-vf610.c | 134 ++++++++++++++++++++++----------
> include/dt-bindings/clock/vf610-clock.h | 39 ++++++++--
> 2 files changed, 123 insertions(+), 50 deletions(-)