| Message ID | c16e37ca23b7a3c53d121ba85889bb6f35576557.1519141896.git.digetx@gmail.com |
|---|---|
| State | Deferred |
| Headers | show |
| Series | Memory controller hot reset | expand |
On Tue, Feb 20, 2018 at 07:25:16PM +0300, Dmitry Osipenko wrote: > Memory Controller has a memory client "hot reset" functionality, which > resets the DMA interface of a memory client, so MC is a reset controller. > Documentation the new property. > > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) Reviewed-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt index f9632bacbd04..7d60a50a4fa1 100644 --- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt @@ -6,11 +6,21 @@ Required properties: example below. Note that the MC registers are interleaved with the GART registers, and hence must be represented as multiple ranges. - interrupts : Should contain MC General interrupt. +- #reset-cells : Should be 1. This cell represents memory client module ID. + The assignments may be found in header file <dt-bindings/memory/tegra20-mc.h> + or in the TRM documentation. Example: - memory-controller@7000f000 { + mc: memory-controller@7000f000 { compatible = "nvidia,tegra20-mc"; reg = <0x7000f000 0x024 0x7000f03c 0x3c4>; interrupts = <0 77 0x04>; + #reset-cells = <1>; + }; + + video-codec@6001a000 { + compatible = "nvidia,tegra20-vde"; + ... + resets = <&mc TEGRA20_MC_RESET_VDE>; };
Memory Controller has a memory client "hot reset" functionality, which resets the DMA interface of a memory client, so MC is a reset controller. Documentation the new property. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- .../devicetree/bindings/arm/tegra/nvidia,tegra20-mc.txt | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)