Commit 710b6533 authored by Wolfram Sang's avatar Wolfram Sang Committed by Wolfram Sang
Browse files

i2c: parport-light: remove driver 



The justification of a light version of the parport driver was less
overhead for embedded systems. Well, today, even if an embedded system
still has a parport, it surely can handle the fully-fledged parport
driver. Remove it to reduce the maintenance burden.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: default avatarJean Delvare <jdelvare@suse.de>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent fe402bd0

Documentation/i2c/busses/i2c-parport-light.rst

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===============================

Kernel driver i2c-parport-light

===============================



Author: Jean Delvare <jdelvare@suse.de>



This driver is a light version of i2c-parport. It doesn't depend

on the parport driver, and uses direct I/O access instead. This might be

preferred on embedded systems where wasting memory for the clean but heavy

parport handling is not an option. The drawback is a reduced portability

and the impossibility to daisy-chain other parallel port devices.



Please see i2c-parport for documentation.



Module parameters:



* type: type of adapter (see i2c-parport or modinfo)



* base: base I/O address

  Default is 0x378 which is fairly common for parallel ports, at least on PC.



* irq: optional IRQ

  This must be passed if you want SMBus alert support, assuming your adapter

  actually supports this.

Documentation/i2c/busses/index.rst

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@@ -20,7 +20,6 @@ I2C Bus Drivers 
   i2c-nforce2

   i2c-nvidia-gpu

   i2c-ocores

   i2c-parport-light

   i2c-parport

   i2c-pca-isa

   i2c-piix4

MAINTAINERS

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@@ -7720,9 +7720,7 @@ M: Jean Delvare <jdelvare@suse.com> 
L:	linux-i2c@vger.kernel.org

S:	Maintained

F:	Documentation/i2c/busses/i2c-parport.rst

F:	Documentation/i2c/busses/i2c-parport-light.rst

F:	drivers/i2c/busses/i2c-parport.c

F:	drivers/i2c/busses/i2c-parport-light.c









I2C SUBSYSTEM









M:	Wolfram Sang <wsa@the-dreams.de>
































drivers/i2c/busses/Kconfig



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@@ -1211,37 +1211,9 @@ config I2C_PARPORT







	  An adapter type parameter is now mandatory.  Please read the file









	  Documentation/i2c/busses/i2c-parport.rst for details.



















	  Another driver exists, named i2c-parport-light, which doesn't depend









	  on the parport driver.  This is meant for embedded systems. Don't say









	  Y here if you intend to say Y or M there.



















	  This support is also available as a module.  If so, the module









	  will be called i2c-parport.



















config I2C_PARPORT_LIGHT









	tristate "Parallel port adapter (light)"









	select I2C_ALGOBIT









	select I2C_SMBUS









	help









	  This supports parallel port I2C adapters such as the ones made by









	  Philips or Velleman, Analog Devices evaluation boards, and more.









	  Basically any adapter using the parallel port as an I2C bus with









	  no extra chipset is supported by this driver, or could be.



















	  This driver is a light version of i2c-parport.  It doesn't depend









	  on the parport driver, and uses direct I/O access instead.  This









	  might be preferred on embedded systems where wasting memory for









	  the clean but heavy parport handling is not an option.  The









	  drawback is a reduced portability and the impossibility to









	  daisy-chain other parallel port devices.



















	  Don't say Y here if you said Y or M to i2c-parport.  Saying M to









	  both is possible but both modules should not be loaded at the same









	  time.



















	  This support is also available as a module.  If so, the module









	  will be called i2c-parport-light.



















config I2C_ROBOTFUZZ_OSIF









	tristate "RobotFuzz Open Source InterFace USB adapter"









	depends on USB
































drivers/i2c/busses/Makefile



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@@ -128,7 +128,6 @@ obj-$(CONFIG_I2C_ZX2967)	+= i2c-zx2967.o







obj-$(CONFIG_I2C_DIOLAN_U2C)	+= i2c-diolan-u2c.o









obj-$(CONFIG_I2C_DLN2)		+= i2c-dln2.o









obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o









obj-$(CONFIG_I2C_PARPORT_LIGHT)	+= i2c-parport-light.o









obj-$(CONFIG_I2C_ROBOTFUZZ_OSIF)	+= i2c-robotfuzz-osif.o









obj-$(CONFIG_I2C_TAOS_EVM)	+= i2c-taos-evm.o









obj-$(CONFIG_I2C_TINY_USB)	+= i2c-tiny-usb.o