Commit 890e0375 authored by Jean Delvare's avatar Jean Delvare Committed by Jean Delvare
Browse files

i2c: Delete outdated x1205 driver documentation 



The x1205 driver moved to the RTC subsystem and was significantly
modified since then, so just delete the outdated documentation.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <alessandro.zummo@towertech.it>
parent 9d9c01ce

Documentation/i2c/chips/x1205

deleted100644 → 0
+0 −38
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Kernel driver x1205

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



Supported chips:

  * Xicor X1205 RTC

    Prefix: 'x1205'

    Addresses scanned: none

    Datasheet: http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html



Authors:

	Karen Spearel <kas11@tampabay.rr.com>,

	Alessandro Zummo <a.zummo@towertech.it>



Description

-----------



This module aims to provide complete access to the Xicor X1205 RTC.

Recently Xicor has merged with Intersil, but the chip is

still sold under the Xicor brand.



This chip is located at address 0x6f and uses a 2-byte register addressing.

Two bytes need to be written to read a single register, while most

other chips just require one and take the second one as the data

to be written. To prevent corrupting unknown chips, the user must

explicitely set the probe parameter.



example:



modprobe x1205 probe=0,0x6f



The module supports one more option, hctosys, which is used to set the

software clock from the x1205. On systems where the x1205 is the

only hardware rtc, this parameter could be used to achieve a correct

date/time earlier in the system boot sequence.



example:



modprobe x1205 probe=0,0x6f hctosys=1

drivers/rtc/rtc-x1205.c

+4 −1
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@@ -9,6 +9,9 @@ 
 *

 * based on a lot of other RTC drivers.

 *

 * Information and datasheet:

 * http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.
@@ -26,7 +29,7 @@ 
 * Two bytes need to be written to read a single register,

 * while most other chips just require one and take the second

 * one as the data to be written. To prevent corrupting

 * unknown chips, the user must explicitely set the probe parameter.

 * unknown chips, the user must explicitly set the probe parameter.

 */



static unsigned short normal_i2c[] = { I2C_CLIENT_END };