On Tue, Jul 15, 2014 at 06:24:33PM +0300, Peter De Schrijver wrote: > Tegra132 has almost the same clock structure than Tegra124. This patch > documents the missing clock IDs. > > Signed-off-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx> > --- > .../bindings/clock/nvidia,tegra124-car.txt | 8 +++++--- > 1 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt > index ded5d62..28129a9 100644 > --- a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt > +++ b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt > @@ -1,4 +1,4 @@ > -NVIDIA Tegra124 Clock And Reset Controller > +NVIDIA Tegra124 and Tegra132 Clock And Reset Controller > > This binding uses the common clock binding: > Documentation/devicetree/bindings/clock/clock-bindings.txt > @@ -7,14 +7,16 @@ The CAR (Clock And Reset) Controller on Tegra is the HW module responsible > for muxing and gating Tegra's clocks, and setting their rates. > > Required properties : > -- compatible : Should be "nvidia,tegra124-car" > +- compatible : Should be "nvidia,tegra124-car" or "nvidia,tegra132-car" > - reg : Should contain CAR registers location and length > - clocks : Should contain phandle and clock specifiers for two clocks: > the 32 KHz "32k_in", and the board-specific oscillator "osc". > - #clock-cells : Should be 1. > In clock consumers, this cell represents the clock ID exposed by the > CAR. The assignments may be found in header file > - <dt-bindings/clock/tegra124-car.h>. > + <dt-bindings/clock/tegra124-car.h>. The following clocks do not exist > + in the nvidia,tegra132-car binding: TEGRA124_CLK_CCLK_G, > + TEGRA124_CLK_CCLK_LP, TEGRA124_CLK_PLL_X and TEGRA124_CLK_PLL_X_OUT0. Perhaps it would be useful to split up the common clocks and the Tegra124-only clocks into separate header files and then provide tegra132-car.h which includes only the ones in common with Tegra124. In other words: tegra124-car-common.h would have all except the ones above, then tegra124-car.h includes tegra124-car-common.h and defines those that are Tegra124-only (the ones you listed above) and tegra132-car.h can include tegra124-car-common.h. That's somewhat extreme, but it has the benefit of giving us compile- time checks as to whether the correct clocks are being used. Thierry
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