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Commit e3f348d7 authored by Sagar Dharia's avatar Sagar Dharia Committed by Karthikeyan Ramasubramanian
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platform: msm: Add snapshot of GENI serial engine driver 



This snapshot is taken as of msm-4.9 'commit <e8a6a75991d4>
("Merge "usb: core: Add usb_set_interface_timeout API"")'.

GENI serial engine driver provides common functionality used by
other serial bus drivers (such as I2c, SPI, UART), and does
resource management for those drivers.

CRs-Fixed: 2124301
Change-Id: I39ef9e7430c7b420b91be092509985f30a21442a
Signed-off-by: default avatarKarthik Ramasubramanian <kramasub@codeaurora.org>
Signed-off-by: default avatarSagar Dharia <sdharia@codeaurora.org>
parent 3295850b

Documentation/devicetree/bindings/platform/msm/qcom-geni-se.txt

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Qualcomm Technologies, Inc. GENI Serial Engine Driver



GENI Serial Engine Driver is used to configure and read the configuration

from the Serial Engines on Qualcomm Technologies, Inc. Universal Peripheral

(QUPv3) core. It is also used to enable the stage1 IOMMU translation and

manage resources associated with the QUPv3 core.



Required properties:

- compatible:		Must be "qcom,qupv3-geni-se".

- reg:			Must contain QUPv3 register address and length.

- qcom,bus-mas-id:	Master Endpoint ID for bus driver.

- qcom,bus-slv-id:	Slave Endpoint ID for bus driver.



Optional properties:

- qcom,iommu-s1-bypass:	Boolean flag to bypass IOMMU stage 1 translation.



Optional subnodes:

qcom,iommu_qupv3_geni_se_cb:	Child node representing the QUPV3 context

				bank.



Subnode Required properties:

- compatible :		Must be "qcom,qupv3-geni-se-cb";

- iommus:		A list of phandle and IOMMU specifier pairs that

			describe the IOMMU master interfaces of the device.



Example:

	qupv3_0: qcom,qupv3_0_geni_se@8c0000 {

		compatible = "qcom,qupv3-geni-se";

		reg = <0x8c0000 0x6000>;

		qcom,bus-mas-id = <100>;

		qcom,bus-slv-id = <300>;



		iommu_qupv3_0_geni_se_cb: qcom,iommu_qupv3_0_geni_se_cb {

			compatible = "qcom,qupv3-geni-se-cb";

			iommus = <&apps_smmu 0x1 0x0>;

		};

	}

drivers/platform/Kconfig

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@@ -8,3 +8,5 @@ endif 
source "drivers/platform/goldfish/Kconfig"



source "drivers/platform/chrome/Kconfig"



source "drivers/platform/msm/Kconfig"

drivers/platform/Makefile

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@@ -7,3 +7,4 @@ obj-$(CONFIG_MIPS) += mips/ 
obj-$(CONFIG_OLPC)		+= olpc/

obj-$(CONFIG_GOLDFISH)		+= goldfish/

obj-$(CONFIG_CHROME_PLATFORMS)	+= chrome/

obj-$(CONFIG_ARCH_QCOM)		+= msm/

drivers/platform/msm/Kconfig

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menu "Qualcomm technologies inc. MSM specific device drivers"

	depends on ARCH_QCOM



config QCOM_GENI_SE

	tristate "QCOM GENI Serial Engine Driver"

	help

	  This module is used to interact with GENI based Serial Engines on

	  Qualcomm Technologies, Inc. Universal Peripheral(QUPv3). This

	  module is used to configure and read the configuration from the

	  Serial Engines.



endmenu

drivers/platform/msm/Makefile

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#

# Makefile for the MSM specific device drivers.

#

obj-$(CONFIG_QCOM_GENI_SE) += qcom-geni-se.o