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Commit 86090ade authored by kris_chen's avatar kris_chen Committed by Can Guo
Browse files

muskie: fingerprint: add FPC kernel driver 

Adds FPC kernel driver files

Bug:32875729
Change-Id: I642ef6fdd91f2d7a43b7f74045b50f689010edf4
commit fpc: fingerprint driver ("e17e8b1e28f5d52a5")
Git-commit: f6a1ae75a80eae7c9f713bae17e8b1e28f5d52a5
Git-repo: https://android.googlesource.com/kernel/msm.git


Signed-off-by: default avatarkris_chen <kris_chen@htc.com>
[cang@codeaurora.org: resolve code compile errors]
Signed-off-by: default avatarCan Guo <cang@codeaurora.org>
parent bc46a78f

Documentation/devicetree/bindings/misc/fpc,fpc1028.txt

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Fingerprint Cards AB. Fpc1028 driver



The fpc1028 fingerprint sensor is connected to the host processor via SPI.

The sensor will generates interrupts when the user touches the sensor.

The host controller is expected to read data over SPI and pass the data to

the rest of the system.



This binding document describes the properties for this module.



Properties:



- compatible

  Usage:      required

  Value type: <string>

  Definition: It must be "fpc,fpc1020"



- interrupts

  Usage:      required

  Value type: <prop-encoded-array>

  Definition: Peripheral interrupt specifier.



- interrupt-parent

  Usage:      required

  Value type: <phandle>

  Definition: phandle of the interrupt controller which services the

  summary interrupt.



- fpc,gpio_rst

  Usage:      required

  Value type: <prop-encoded-array>

  Definition: GPIO which connecting to the reset pin of fpc1028



- fpc,gpio_irq

  Usage:      required

  Value type: <prop-encoded-array>

  Definition: Specifies the GPIO which connecting to the irq pin of fpc1028.



- vcc_spi-supply

  Usage:      required

  Value type: <phandle>

  Definition: The phandle of the regulator which supplies fpc1028 spi bus core.



- vcc_io-supply

  Usage:      required

  Value type: <phandle>

  Definition: The phandle of the regulator which supplies fpc1028 io pins.



- vcc_ana-supply

  Usage:      required

  Value type: <phandle>

  Definition: The phandle of the regulator which supplies fpc1028 analog circuit.



- pinctrl-names:

  Usage:      required

  Value type: <string>

  Definition: Pinctrl state names for each pin group configuration.

  eg:"fpc1020_reset_reset", "fpc1020_reset_active", "fpc1020_irq_active".

  refer to "Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt"



- pinctrl-n:

  Usage:      required

  Value type: <string>

  Definition: pinctrl state for each pin group

  refer to "Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt"





Example:



	fpc1020 {

			compatible = "fpc,fpc1020";

			interrupt-parent = <&tlmm>;

			interrupts = <48 0>;

			fpc,gpio_rst = <&tlmm 124 0x0>;

			fpc,gpio_irq = <&tlmm 48 0>;

			vcc_spi-supply = <&pm8953_l5>;

			vdd_io-supply  = <&pm8953_l5>;

			vdd_ana-supply = <&pm8953_l5>;

			fpc,enable-on-boot;

			pinctrl-names = "fpc1020_reset_reset",

					"fpc1020_reset_active",

					"fpc1020_irq_active";

			pinctrl-0 = <&msm_gpio_124>;

			pinctrl-1 = <&msm_gpio_124_output_high>;

			pinctrl-2 = <&msm_gpio_48>;

		};

Documentation/devicetree/bindings/vendor-prefixes.txt

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@@ -103,6 +103,7 @@ ezchip EZchip Semiconductor 
fcs	Fairchild Semiconductor

firefly	Firefly

focaltech	FocalTech Systems Co.,Ltd

fpc	Fingerprint Cards AB.

friendlyarm	Guangzhou FriendlyARM Computer Tech Co., Ltd

fsl	Freescale Semiconductor

ge	General Electric Company

drivers/misc/Kconfig

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@@ -825,4 +825,5 @@ source "drivers/misc/mic/Kconfig" 
source "drivers/misc/genwqe/Kconfig"

source "drivers/misc/echo/Kconfig"

source "drivers/misc/cxl/Kconfig"

source "drivers/misc/fpr_FingerprintCard/Kconfig"

endmenu

drivers/misc/Makefile

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@@ -57,6 +57,7 @@ obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o 
obj-$(CONFIG_CXL_BASE)		+= cxl/

obj-$(CONFIG_PANEL)             += panel.o

obj-$(CONFIG_QPNP_MISC) 	+= qpnp-misc.o

obj-$(CONFIG_FPR_FPC) 	+= fpr_FingerprintCard/

obj-$(CONFIG_MEMORY_STATE_TIME)	+= memory_state_time.o



obj-$(CONFIG_UID_SYS_STATS)	+= uid_sys_stats.o

drivers/misc/fpr_FingerprintCard/Kconfig

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#

# FingerprintCard fingerprint driver

#

menu "FingerprintCard fingerprint driver"

config FPR_FPC

       default n

       tristate "FPC_BTP fingerprint sensor support"

       depends on SPI_MASTER



endmenu