On Mon, Mar 05, 2018 at 03:23:28PM +0530, sibis wrote:
> Add reset controller driver for Qualcomm SDM845 SoC to
> control reset signals provided by AOSS for Modem, Venus
> ADSP, GPU, Camera, Wireless, Display subsystem
>
> Signed-off-by: sibis <sibis@xxxxxxxxxxxxxx>
Need a full name here.
> ---
> .../devicetree/bindings/reset/qcom,aoss-reset.txt | 54 ++++++++
Separate patch for bindings (with the header) please.
> drivers/reset/Kconfig | 10 ++
> drivers/reset/Makefile | 1 +
> drivers/reset/reset-qcom-aoss.c | 151 +++++++++++++++++++++
> include/dt-bindings/reset/qcom,aoss-sdm845.h | 17 +++
> 5 files changed, 233 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> create mode 100644 drivers/reset/reset-qcom-aoss.c
> create mode 100644 include/dt-bindings/reset/qcom,aoss-sdm845.h
>
> diff --git a/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> new file mode 100644
> index 0000000..5318e14
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/qcom,aoss-reset.txt
> @@ -0,0 +1,54 @@
> +Qualcomm AOSS Reset Controller
> +======================================
> +
> +This binding describes a reset-controller found on AOSS (Always on SubSysem)
> +for Qualcomm SDM845 SoCs.
> +
> +Required properties:
> +- compatible:
> + Usage: required
> + Value type: <string>
> + Definition: must be:
> + "qcom,aoss-reset-sdm845", "syscon"
Someone in QCom needs to go fix the order of all your downstream
compatibles or review your bindings before sending upstream. The
standard ordering is <vendor>,<soc>-<block>.
Why syscon? The description is this is just a reset controller.
> +
> +- reg:
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: must specify the base address and size of the
> + syscon device.
> +
> +
> +- #reset-cells:
> + Usage: required
> + Value type: <uint>
> + Definition: must be 1; cell entry represents the reset index.
> +
> +example:
> +
> +aoss_reset: qcom,reset-controller@b2e0100 {
> + compatible = "qcom,aoss-reset-sdm845", "syscon";
> + reg = <0xc2b0000 0x20004>;
> + #reset-cells = <1>;
> +};
> +
> +
> +Specifying reset lines connected to IP modules
> +==============================================
> +
> +Device nodes that need access to reset lines should
> +specify them as a reset phandle in their corresponding node as
> +specified in reset.txt.
> +
> +Example:
> +
> + modem-pil@4080000 {
> + ...
> +
> + resets = <&aoss_reset AOSS_CC_MSS_RESTART>;
> + reset-names = "mss_restart";
> +
> + ...
> + };
> +
> +For list of all valid reset indicies see
> +<dt-bindings/reset/qcom,aoss-sdm845.h>
Put this before the example.
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