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Commit c04c674f authored by Robert Baldyga's avatar Robert Baldyga Committed by Samuel Ortiz
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nfc: s3fwrn5: Add driver for Samsung S3FWRN5 NFC Chip 



Add driver for Samsung S3FWRN5 NFC controller.
S3FWRN5 is using NCI protocol and I2C communication interface.

Signed-off-by: default avatarRobert Baldyga <r.baldyga@samsung.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 025a0cb8

Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt

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* Samsung S3FWRN5 NCI NFC Controller



Required properties:

- compatible: Should be "samsung,s3fwrn5-i2c".

- reg: address on the bus

- interrupt-parent: phandle for the interrupt gpio controller

- interrupts: GPIO interrupt to which the chip is connected

- s3fwrn5,en-gpios: Output GPIO pin used for enabling/disabling the chip

- s3fwrn5,fw-gpios: Output GPIO pin used to enter firmware mode and

  sleep/wakeup control



Example:



&hsi2c_4 {

	status = "okay";

	s3fwrn5@27 {

		compatible = "samsung,s3fwrn5-i2c";



		reg = <0x27>;



		interrupt-parent = <&gpa1>;

		interrupts = <3 0 0>;



		s3fwrn5,en-gpios = <&gpf1 4 0>;

		s3fwrn5,fw-gpios = <&gpj0 2 0>;

	};

};

MAINTAINERS

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@@ -8871,6 +8871,12 @@ L: linux-media@vger.kernel.org 
S:	Supported

S:	Supported

F:	drivers/media/i2c/s5k5baf.c

F:	drivers/media/i2c/s5k5baf.c





SAMSUNG S3FWRN5 NFC DRIVER

M:	Robert Baldyga <r.baldyga@samsung.com>

L:	linux-nfc@lists.01.org (moderated for non-subscribers)

S:	Supported

F:	drivers/nfc/s3fwrn5



SAMSUNG SOC CLOCK DRIVERS

SAMSUNG SOC CLOCK DRIVERS

M:	Sylwester Nawrocki <s.nawrocki@samsung.com>

M:	Sylwester Nawrocki <s.nawrocki@samsung.com>

M:	Tomasz Figa <tomasz.figa@gmail.com>

M:	Tomasz Figa <tomasz.figa@gmail.com>

drivers/nfc/Kconfig

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@@ -74,4 +74,5 @@ source "drivers/nfc/nfcmrvl/Kconfig" 
source "drivers/nfc/st21nfca/Kconfig"

source "drivers/nfc/st21nfca/Kconfig"

source "drivers/nfc/st-nci/Kconfig"

source "drivers/nfc/st-nci/Kconfig"

source "drivers/nfc/nxp-nci/Kconfig"

source "drivers/nfc/nxp-nci/Kconfig"

source "drivers/nfc/s3fwrn5/Kconfig"

endmenu
 
endmenu

drivers/nfc/Makefile

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@@ -14,3 +14,4 @@ obj-$(CONFIG_NFC_TRF7970A) += trf7970a.o 
obj-$(CONFIG_NFC_ST21NFCA)  	+= st21nfca/

obj-$(CONFIG_NFC_ST21NFCA)  	+= st21nfca/

obj-$(CONFIG_NFC_ST_NCI)	+= st-nci/

obj-$(CONFIG_NFC_ST_NCI)	+= st-nci/

obj-$(CONFIG_NFC_NXP_NCI)	+= nxp-nci/

obj-$(CONFIG_NFC_NXP_NCI)	+= nxp-nci/

obj-$(CONFIG_NFC_S3FWRN5)	+= s3fwrn5/

drivers/nfc/s3fwrn5/Kconfig

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config NFC_S3FWRN5

	tristate

	---help---

	  Core driver for Samsung S3FWRN5 NFC chip. Contains core utilities

	  of chip. It's intended to be used by PHYs to avoid duplicating lots

	  of common code.



config NFC_S3FWRN5_I2C

	tristate "Samsung S3FWRN5 I2C support"

	depends on NFC_NCI && I2C

	select NFC_S3FWRN5

	default n

	---help---

	  This module adds support for an I2C interface to the S3FWRN5 chip.

	  Select this if your platform is using the I2C bus.



	  To compile this driver as a module, choose m here. The module will

	  be called s3fwrn5_i2c.ko.

	  Say N if unsure.