Messages in this thread Patch in this message |  | | Date | Thu, 17 Oct 2013 14:56:02 +0100 | From | Mark Rutland <> | Subject | Re: [RESEND PATCH v2 2/6] ARM: dts: Specify clocks for UARTs on bcm11351 |
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On Wed, Oct 16, 2013 at 10:47:06PM +0100, Tim Kryger wrote: > Rather than declaring the frequency of the external clock, specify the > label of the clock such that the driver may determine the frequency on > its own.
Nit: we're not specifying the label of the clock. Clocks are represented py a phand+args pair, and the important part is that we're specifying the clock itself.
How about something like:
---->8---- Currently the rate of the external clock input to "snps,dw-apb-uart" devices is described by a clock-frequency property rather than by reference to the clock itself.
This patch changes the "snps,dw-apb-uart" entries in bcm11351.dtsi to refer to the parent clock directly, following the common clock bindings. ---->8----
Also, this should probably be moved after the driver change, so as to not be unbootable temporarily.
Thanks, Mark.
> > Signed-off-by: Tim Kryger <tim.kryger@linaro.org> > Reviewed-by: Markus Mayer <markus.mayer@linaro.org> > Reviewed-by: Matt Porter <matt.porter@linaro.org> > --- > arch/arm/boot/dts/bcm11351.dtsi | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi > index c6464fb..ce65367 100644 > --- a/arch/arm/boot/dts/bcm11351.dtsi > +++ b/arch/arm/boot/dts/bcm11351.dtsi > @@ -43,7 +43,7 @@ > compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; > status = "disabled"; > reg = <0x3e000000 0x1000>; > - clock-frequency = <13000000>; > + clocks = <&uartb_clk>; > interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; > reg-shift = <2>; > reg-io-width = <4>; > @@ -53,7 +53,7 @@ > compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; > status = "disabled"; > reg = <0x3e001000 0x1000>; > - clock-frequency = <13000000>; > + clocks = <&uartb2_clk>; > interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; > reg-shift = <2>; > reg-io-width = <4>; > @@ -63,7 +63,7 @@ > compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; > status = "disabled"; > reg = <0x3e002000 0x1000>; > - clock-frequency = <13000000>; > + clocks = <&uartb3_clk>; > interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; > reg-shift = <2>; > reg-io-width = <4>; > @@ -73,7 +73,7 @@ > compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; > status = "disabled"; > reg = <0x3e003000 0x1000>; > - clock-frequency = <13000000>; > + clocks = <&uartb4_clk>; > interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>; > reg-shift = <2>; > reg-io-width = <4>; > -- > 1.8.0.1 > > >
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