Hi Rob,
Thanks for the review, will add the changes in v3 of the patch series
On 03/08/2018 03:05 AM, Rob Herring wrote:
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.
Will correct it
---
.../devicetree/bindings/reset/qcom,aoss-reset.txt | 54 ++++++++
Separate patch for bindings (with the header) please.
Will make a separate patch
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>.
Will correct it.
Why syscon? The description is this is just a reset controller.
syscon was needed in the compatible list due to using
syscon_node_to_regmap in the reset driver but I guess
since it is just a reset controller the correct thing to do
be ioremap the reg space and do devm_regmap_init_mmio on it.
Will remove syscon.
+
+- 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.
ok
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