2009-12-15 03:00:15 +01:00
|
|
|
/*
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
* ad525x_dpot: Driver for the Analog Devices digital potentiometers
|
|
|
|
* Copyright (c) 2009-2010 Analog Devices, Inc.
|
2009-12-15 03:00:15 +01:00
|
|
|
* Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
|
|
|
|
*
|
|
|
|
* DEVID #Wipers #Positions Resistor Options (kOhm)
|
|
|
|
* AD5258 1 64 1, 10, 50, 100
|
|
|
|
* AD5259 1 256 5, 10, 50, 100
|
|
|
|
* AD5251 2 64 1, 10, 50, 100
|
|
|
|
* AD5252 2 256 1, 10, 50, 100
|
|
|
|
* AD5255 3 512 25, 250
|
|
|
|
* AD5253 4 64 1, 10, 50, 100
|
|
|
|
* AD5254 4 256 1, 10, 50, 100
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
* AD5160 1 256 5, 10, 50, 100
|
|
|
|
* AD5161 1 256 5, 10, 50, 100
|
|
|
|
* AD5162 2 256 2.5, 10, 50, 100
|
|
|
|
* AD5165 1 256 100
|
|
|
|
* AD5200 1 256 10, 50
|
|
|
|
* AD5201 1 33 10, 50
|
|
|
|
* AD5203 4 64 10, 100
|
|
|
|
* AD5204 4 256 10, 50, 100
|
|
|
|
* AD5206 6 256 10, 50, 100
|
|
|
|
* AD5207 2 256 10, 50, 100
|
|
|
|
* AD5231 1 1024 10, 50, 100
|
|
|
|
* AD5232 2 256 10, 50, 100
|
|
|
|
* AD5233 4 64 10, 50, 100
|
|
|
|
* AD5235 2 1024 25, 250
|
|
|
|
* AD5260 1 256 20, 50, 200
|
|
|
|
* AD5262 2 256 20, 50, 200
|
|
|
|
* AD5263 4 256 20, 50, 200
|
|
|
|
* AD5290 1 256 10, 50, 100
|
|
|
|
* AD5291 1 256 20
|
|
|
|
* AD5292 1 1024 20
|
|
|
|
* AD5293 1 1024 20
|
|
|
|
* AD7376 1 128 10, 50, 100, 1M
|
|
|
|
* AD8400 1 256 1, 10, 50, 100
|
|
|
|
* AD8402 2 256 1, 10, 50, 100
|
|
|
|
* AD8403 4 256 1, 10, 50, 100
|
|
|
|
* ADN2850 3 512 25, 250
|
2010-05-24 23:33:15 +02:00
|
|
|
* AD5241 1 256 10, 100, 1M
|
|
|
|
* AD5246 1 128 5, 10, 50, 100
|
|
|
|
* AD5247 1 128 5, 10, 50, 100
|
|
|
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* AD5245 1 256 5, 10, 50, 100
|
|
|
|
* AD5243 2 256 2.5, 10, 50, 100
|
|
|
|
* AD5248 2 256 2.5, 10, 50, 100
|
|
|
|
* AD5242 2 256 20, 50, 200
|
2010-05-24 23:33:15 +02:00
|
|
|
* AD5280 1 256 20, 50, 200
|
|
|
|
* AD5282 2 256 20, 50, 200
|
|
|
|
* ADN2860 3 512 25, 250
|
2010-05-24 23:33:16 +02:00
|
|
|
* AD5273 1 64 1, 10, 50, 100 (OTP)
|
|
|
|
* AD5171 1 64 5, 10, 50, 100 (OTP)
|
|
|
|
* AD5170 1 256 2.5, 10, 50, 100 (OTP)
|
|
|
|
* AD5172 2 256 2.5, 10, 50, 100 (OTP)
|
|
|
|
* AD5173 2 256 2.5, 10, 50, 100 (OTP)
|
2009-12-15 03:00:15 +01:00
|
|
|
*
|
|
|
|
* See Documentation/misc-devices/ad525x_dpot.txt for more info.
|
|
|
|
*
|
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|
|
* derived from ad5258.c
|
|
|
|
* Copyright (c) 2009 Cyber Switching, Inc.
|
|
|
|
* Author: Chris Verges <chrisv@cyberswitching.com>
|
|
|
|
*
|
|
|
|
* derived from ad5252.c
|
|
|
|
* Copyright (c) 2006 Michael Hennerich <hennerich@blackfin.uclinux.org>
|
|
|
|
*
|
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|
|
* Licensed under the GPL-2 or later.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/device.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/delay.h>
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
#include <linux/slab.h>
|
2009-12-15 03:00:15 +01:00
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
#define DRIVER_VERSION "0.2"
|
2009-12-15 03:00:15 +01:00
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
#include "ad525x_dpot.h"
|
2009-12-15 03:00:15 +01:00
|
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/*
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|
|
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* Client data (each client gets its own)
|
|
|
|
*/
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|
|
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|
|
|
struct dpot_data {
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
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struct ad_dpot_bus_data bdata;
|
2009-12-15 03:00:15 +01:00
|
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|
struct mutex update_lock;
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|
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unsigned rdac_mask;
|
|
|
|
unsigned max_pos;
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
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unsigned long devid;
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|
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unsigned uid;
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unsigned feat;
|
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unsigned wipers;
|
2010-05-24 23:33:16 +02:00
|
|
|
u16 rdac_cache[MAX_RDACS];
|
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|
|
DECLARE_BITMAP(otp_en_mask, MAX_RDACS);
|
2009-12-15 03:00:15 +01:00
|
|
|
};
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
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|
static inline int dpot_read_d8(struct dpot_data *dpot)
|
|
|
|
{
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|
|
|
return dpot->bdata.bops->read_d8(dpot->bdata.client);
|
|
|
|
}
|
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|
|
|
|
|
|
static inline int dpot_read_r8d8(struct dpot_data *dpot, u8 reg)
|
|
|
|
{
|
|
|
|
return dpot->bdata.bops->read_r8d8(dpot->bdata.client, reg);
|
|
|
|
}
|
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|
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static inline int dpot_read_r8d16(struct dpot_data *dpot, u8 reg)
|
|
|
|
{
|
|
|
|
return dpot->bdata.bops->read_r8d16(dpot->bdata.client, reg);
|
|
|
|
}
|
|
|
|
|
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|
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static inline int dpot_write_d8(struct dpot_data *dpot, u8 val)
|
|
|
|
{
|
|
|
|
return dpot->bdata.bops->write_d8(dpot->bdata.client, val);
|
|
|
|
}
|
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|
|
|
|
|
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static inline int dpot_write_r8d8(struct dpot_data *dpot, u8 reg, u16 val)
|
|
|
|
{
|
|
|
|
return dpot->bdata.bops->write_r8d8(dpot->bdata.client, reg, val);
|
|
|
|
}
|
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|
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|
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static inline int dpot_write_r8d16(struct dpot_data *dpot, u8 reg, u16 val)
|
|
|
|
{
|
|
|
|
return dpot->bdata.bops->write_r8d16(dpot->bdata.client, reg, val);
|
|
|
|
}
|
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
static s32 dpot_read_spi(struct dpot_data *dpot, u8 reg)
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
{
|
2010-05-24 23:33:15 +02:00
|
|
|
unsigned ctrl = 0;
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (!(reg & (DPOT_ADDR_EEPROM | DPOT_ADDR_CMD))) {
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (dpot->feat & F_RDACS_WONLY)
|
|
|
|
return dpot->rdac_cache[reg & DPOT_RDAC_MASK];
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (dpot->uid == DPOT_UID(AD5291_ID) ||
|
|
|
|
dpot->uid == DPOT_UID(AD5292_ID) ||
|
|
|
|
dpot->uid == DPOT_UID(AD5293_ID))
|
|
|
|
return dpot_read_r8d8(dpot,
|
|
|
|
DPOT_AD5291_READ_RDAC << 2);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
ctrl = DPOT_SPI_READ_RDAC;
|
|
|
|
} else if (reg & DPOT_ADDR_EEPROM) {
|
|
|
|
ctrl = DPOT_SPI_READ_EEPROM;
|
|
|
|
}
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (dpot->feat & F_SPI_16BIT)
|
|
|
|
return dpot_read_r8d8(dpot, ctrl);
|
|
|
|
else if (dpot->feat & F_SPI_24BIT)
|
|
|
|
return dpot_read_r8d16(dpot, ctrl);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
return -EFAULT;
|
|
|
|
}
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
static s32 dpot_read_i2c(struct dpot_data *dpot, u8 reg)
|
|
|
|
{
|
|
|
|
unsigned ctrl = 0;
|
|
|
|
switch (dpot->uid) {
|
|
|
|
case DPOT_UID(AD5246_ID):
|
|
|
|
case DPOT_UID(AD5247_ID):
|
|
|
|
return dpot_read_d8(dpot);
|
|
|
|
case DPOT_UID(AD5245_ID):
|
|
|
|
case DPOT_UID(AD5241_ID):
|
|
|
|
case DPOT_UID(AD5242_ID):
|
|
|
|
case DPOT_UID(AD5243_ID):
|
|
|
|
case DPOT_UID(AD5248_ID):
|
2010-05-24 23:33:15 +02:00
|
|
|
case DPOT_UID(AD5280_ID):
|
|
|
|
case DPOT_UID(AD5282_ID):
|
2010-05-24 23:33:15 +02:00
|
|
|
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
|
2010-10-26 23:22:35 +02:00
|
|
|
0 : DPOT_AD5282_RDAC_AB;
|
2010-05-24 23:33:15 +02:00
|
|
|
return dpot_read_r8d8(dpot, ctrl);
|
2010-05-24 23:33:16 +02:00
|
|
|
case DPOT_UID(AD5170_ID):
|
|
|
|
case DPOT_UID(AD5171_ID):
|
|
|
|
case DPOT_UID(AD5273_ID):
|
|
|
|
return dpot_read_d8(dpot);
|
|
|
|
case DPOT_UID(AD5172_ID):
|
|
|
|
case DPOT_UID(AD5173_ID):
|
|
|
|
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
|
2010-10-26 23:22:35 +02:00
|
|
|
0 : DPOT_AD5172_3_A0;
|
2010-05-24 23:33:16 +02:00
|
|
|
return dpot_read_r8d8(dpot, ctrl);
|
2010-05-24 23:33:15 +02:00
|
|
|
default:
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if ((reg & DPOT_REG_TOL) || (dpot->max_pos > 256))
|
|
|
|
return dpot_read_r8d16(dpot, (reg & 0xF8) |
|
|
|
|
((reg & 0x7) << 1));
|
|
|
|
else
|
|
|
|
return dpot_read_r8d8(dpot, reg);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
static s32 dpot_read(struct dpot_data *dpot, u8 reg)
|
|
|
|
{
|
|
|
|
if (dpot->feat & F_SPI)
|
|
|
|
return dpot_read_spi(dpot, reg);
|
|
|
|
else
|
|
|
|
return dpot_read_i2c(dpot, reg);
|
|
|
|
}
|
|
|
|
|
|
|
|
static s32 dpot_write_spi(struct dpot_data *dpot, u8 reg, u16 value)
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
{
|
|
|
|
unsigned val = 0;
|
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (!(reg & (DPOT_ADDR_EEPROM | DPOT_ADDR_CMD))) {
|
|
|
|
if (dpot->feat & F_RDACS_WONLY)
|
|
|
|
dpot->rdac_cache[reg & DPOT_RDAC_MASK] = value;
|
|
|
|
|
|
|
|
if (dpot->feat & F_AD_APPDATA) {
|
|
|
|
if (dpot->feat & F_SPI_8BIT) {
|
|
|
|
val = ((reg & DPOT_RDAC_MASK) <<
|
|
|
|
DPOT_MAX_POS(dpot->devid)) |
|
|
|
|
value;
|
|
|
|
return dpot_write_d8(dpot, val);
|
|
|
|
} else if (dpot->feat & F_SPI_16BIT) {
|
|
|
|
val = ((reg & DPOT_RDAC_MASK) <<
|
|
|
|
DPOT_MAX_POS(dpot->devid)) |
|
|
|
|
value;
|
|
|
|
return dpot_write_r8d8(dpot, val >> 8,
|
|
|
|
val & 0xFF);
|
|
|
|
} else
|
|
|
|
BUG();
|
|
|
|
} else {
|
|
|
|
if (dpot->uid == DPOT_UID(AD5291_ID) ||
|
|
|
|
dpot->uid == DPOT_UID(AD5292_ID) ||
|
|
|
|
dpot->uid == DPOT_UID(AD5293_ID))
|
|
|
|
return dpot_write_r8d8(dpot,
|
|
|
|
(DPOT_AD5291_RDAC << 2) |
|
|
|
|
(value >> 8), value & 0xFF);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
val = DPOT_SPI_RDAC | (reg & DPOT_RDAC_MASK);
|
|
|
|
}
|
|
|
|
} else if (reg & DPOT_ADDR_EEPROM) {
|
|
|
|
val = DPOT_SPI_EEPROM | (reg & DPOT_RDAC_MASK);
|
|
|
|
} else if (reg & DPOT_ADDR_CMD) {
|
|
|
|
switch (reg) {
|
|
|
|
case DPOT_DEC_ALL_6DB:
|
|
|
|
val = DPOT_SPI_DEC_ALL_6DB;
|
|
|
|
break;
|
|
|
|
case DPOT_INC_ALL_6DB:
|
|
|
|
val = DPOT_SPI_INC_ALL_6DB;
|
|
|
|
break;
|
|
|
|
case DPOT_DEC_ALL:
|
|
|
|
val = DPOT_SPI_DEC_ALL;
|
|
|
|
break;
|
|
|
|
case DPOT_INC_ALL:
|
|
|
|
val = DPOT_SPI_INC_ALL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
BUG();
|
|
|
|
|
|
|
|
if (dpot->feat & F_SPI_16BIT)
|
|
|
|
return dpot_write_r8d8(dpot, val, value);
|
|
|
|
else if (dpot->feat & F_SPI_24BIT)
|
|
|
|
return dpot_write_r8d16(dpot, val, value);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
static s32 dpot_write_i2c(struct dpot_data *dpot, u8 reg, u16 value)
|
|
|
|
{
|
|
|
|
/* Only write the instruction byte for certain commands */
|
2010-05-24 23:33:16 +02:00
|
|
|
unsigned tmp = 0, ctrl = 0;
|
2010-05-24 23:33:15 +02:00
|
|
|
|
|
|
|
switch (dpot->uid) {
|
|
|
|
case DPOT_UID(AD5246_ID):
|
|
|
|
case DPOT_UID(AD5247_ID):
|
|
|
|
return dpot_write_d8(dpot, value);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case DPOT_UID(AD5245_ID):
|
|
|
|
case DPOT_UID(AD5241_ID):
|
|
|
|
case DPOT_UID(AD5242_ID):
|
|
|
|
case DPOT_UID(AD5243_ID):
|
|
|
|
case DPOT_UID(AD5248_ID):
|
2010-05-24 23:33:15 +02:00
|
|
|
case DPOT_UID(AD5280_ID):
|
|
|
|
case DPOT_UID(AD5282_ID):
|
|
|
|
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
|
2010-10-26 23:22:35 +02:00
|
|
|
0 : DPOT_AD5282_RDAC_AB;
|
2010-05-24 23:33:15 +02:00
|
|
|
return dpot_write_r8d8(dpot, ctrl, value);
|
|
|
|
break;
|
2010-05-24 23:33:16 +02:00
|
|
|
case DPOT_UID(AD5171_ID):
|
|
|
|
case DPOT_UID(AD5273_ID):
|
|
|
|
if (reg & DPOT_ADDR_OTP) {
|
|
|
|
tmp = dpot_read_d8(dpot);
|
|
|
|
if (tmp >> 6) /* Ready to Program? */
|
|
|
|
return -EFAULT;
|
|
|
|
ctrl = DPOT_AD5273_FUSE;
|
|
|
|
}
|
|
|
|
return dpot_write_r8d8(dpot, ctrl, value);
|
|
|
|
break;
|
|
|
|
case DPOT_UID(AD5172_ID):
|
|
|
|
case DPOT_UID(AD5173_ID):
|
|
|
|
ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ?
|
2010-10-26 23:22:35 +02:00
|
|
|
0 : DPOT_AD5172_3_A0;
|
2010-05-24 23:33:16 +02:00
|
|
|
if (reg & DPOT_ADDR_OTP) {
|
|
|
|
tmp = dpot_read_r8d16(dpot, ctrl);
|
|
|
|
if (tmp >> 14) /* Ready to Program? */
|
|
|
|
return -EFAULT;
|
2010-10-26 23:22:35 +02:00
|
|
|
ctrl |= DPOT_AD5170_2_3_FUSE;
|
2010-05-24 23:33:16 +02:00
|
|
|
}
|
|
|
|
return dpot_write_r8d8(dpot, ctrl, value);
|
|
|
|
break;
|
|
|
|
case DPOT_UID(AD5170_ID):
|
|
|
|
if (reg & DPOT_ADDR_OTP) {
|
|
|
|
tmp = dpot_read_r8d16(dpot, tmp);
|
|
|
|
if (tmp >> 14) /* Ready to Program? */
|
|
|
|
return -EFAULT;
|
|
|
|
ctrl = DPOT_AD5270_2_3_FUSE;
|
|
|
|
}
|
|
|
|
return dpot_write_r8d8(dpot, ctrl, value);
|
|
|
|
break;
|
2010-05-24 23:33:15 +02:00
|
|
|
default:
|
2010-05-24 23:33:15 +02:00
|
|
|
if (reg & DPOT_ADDR_CMD)
|
|
|
|
return dpot_write_d8(dpot, reg);
|
2010-05-24 23:33:15 +02:00
|
|
|
|
2010-05-24 23:33:15 +02:00
|
|
|
if (dpot->max_pos > 256)
|
|
|
|
return dpot_write_r8d16(dpot, (reg & 0xF8) |
|
|
|
|
((reg & 0x7) << 1), value);
|
|
|
|
else
|
|
|
|
/* All other registers require instruction + data bytes */
|
|
|
|
return dpot_write_r8d8(dpot, reg, value);
|
2010-05-24 23:33:15 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static s32 dpot_write(struct dpot_data *dpot, u8 reg, u16 value)
|
|
|
|
{
|
|
|
|
if (dpot->feat & F_SPI)
|
|
|
|
return dpot_write_spi(dpot, reg, value);
|
|
|
|
else
|
|
|
|
return dpot_write_i2c(dpot, reg, value);
|
|
|
|
}
|
|
|
|
|
2009-12-15 03:00:15 +01:00
|
|
|
/* sysfs functions */
|
|
|
|
|
|
|
|
static ssize_t sysfs_show_reg(struct device *dev,
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf, u32 reg)
|
2009-12-15 03:00:15 +01:00
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct dpot_data *data = dev_get_drvdata(dev);
|
2009-12-15 03:00:15 +01:00
|
|
|
s32 value;
|
|
|
|
|
2010-05-24 23:33:16 +02:00
|
|
|
if (reg & DPOT_ADDR_OTP_EN)
|
|
|
|
return sprintf(buf, "%s\n",
|
|
|
|
test_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask) ?
|
|
|
|
"enabled" : "disabled");
|
|
|
|
|
|
|
|
|
2009-12-15 03:00:15 +01:00
|
|
|
mutex_lock(&data->update_lock);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
value = dpot_read(data, reg);
|
2009-12-15 03:00:15 +01:00
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
|
|
|
|
if (value < 0)
|
|
|
|
return -EINVAL;
|
|
|
|
/*
|
|
|
|
* Let someone else deal with converting this ...
|
|
|
|
* the tolerance is a two-byte value where the MSB
|
|
|
|
* is a sign + integer value, and the LSB is a
|
|
|
|
* decimal value. See page 18 of the AD5258
|
|
|
|
* datasheet (Rev. A) for more details.
|
|
|
|
*/
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if (reg & DPOT_REG_TOL)
|
2009-12-15 03:00:15 +01:00
|
|
|
return sprintf(buf, "0x%04x\n", value & 0xFFFF);
|
|
|
|
else
|
|
|
|
return sprintf(buf, "%u\n", value & data->rdac_mask);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t sysfs_set_reg(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count, u32 reg)
|
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct dpot_data *data = dev_get_drvdata(dev);
|
2009-12-15 03:00:15 +01:00
|
|
|
unsigned long value;
|
|
|
|
int err;
|
|
|
|
|
2010-05-24 23:33:16 +02:00
|
|
|
if (reg & DPOT_ADDR_OTP_EN) {
|
|
|
|
if (!strncmp(buf, "enabled", sizeof("enabled")))
|
|
|
|
set_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
|
|
|
|
else
|
|
|
|
clear_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask);
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((reg & DPOT_ADDR_OTP) &&
|
|
|
|
!test_bit(DPOT_RDAC_MASK & reg, data->otp_en_mask))
|
|
|
|
return -EPERM;
|
|
|
|
|
2009-12-15 03:00:15 +01:00
|
|
|
err = strict_strtoul(buf, 10, &value);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
if (value > data->rdac_mask)
|
|
|
|
value = data->rdac_mask;
|
|
|
|
|
|
|
|
mutex_lock(&data->update_lock);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
dpot_write(data, reg, value);
|
|
|
|
if (reg & DPOT_ADDR_EEPROM)
|
2009-12-15 03:00:15 +01:00
|
|
|
msleep(26); /* Sleep while the EEPROM updates */
|
2010-05-24 23:33:16 +02:00
|
|
|
else if (reg & DPOT_ADDR_OTP)
|
|
|
|
msleep(400); /* Sleep while the OTP updates */
|
2009-12-15 03:00:15 +01:00
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t sysfs_do_cmd(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count, u32 reg)
|
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct dpot_data *data = dev_get_drvdata(dev);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
mutex_lock(&data->update_lock);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
dpot_write(data, reg, 0);
|
2009-12-15 03:00:15 +01:00
|
|
|
mutex_unlock(&data->update_lock);
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
2010-05-24 23:33:13 +02:00
|
|
|
#define DPOT_DEVICE_SHOW(_name, _reg) static ssize_t \
|
|
|
|
show_##_name(struct device *dev, \
|
|
|
|
struct device_attribute *attr, char *buf) \
|
|
|
|
{ \
|
|
|
|
return sysfs_show_reg(dev, attr, buf, _reg); \
|
2009-12-15 03:00:15 +01:00
|
|
|
}
|
|
|
|
|
2010-05-24 23:33:13 +02:00
|
|
|
#define DPOT_DEVICE_SET(_name, _reg) static ssize_t \
|
|
|
|
set_##_name(struct device *dev, \
|
|
|
|
struct device_attribute *attr, \
|
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return sysfs_set_reg(dev, attr, buf, count, _reg); \
|
2009-12-15 03:00:15 +01:00
|
|
|
}
|
|
|
|
|
2010-05-24 23:33:13 +02:00
|
|
|
#define DPOT_DEVICE_SHOW_SET(name, reg) \
|
|
|
|
DPOT_DEVICE_SHOW(name, reg) \
|
|
|
|
DPOT_DEVICE_SET(name, reg) \
|
|
|
|
static DEVICE_ATTR(name, S_IWUSR | S_IRUGO, show_##name, set_##name);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
2010-05-24 23:33:13 +02:00
|
|
|
#define DPOT_DEVICE_SHOW_ONLY(name, reg) \
|
|
|
|
DPOT_DEVICE_SHOW(name, reg) \
|
|
|
|
static DEVICE_ATTR(name, S_IWUSR | S_IRUGO, show_##name, NULL);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(rdac0, DPOT_ADDR_RDAC | DPOT_RDAC0);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom0, DPOT_ADDR_EEPROM | DPOT_RDAC0);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance0, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC0);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp0, DPOT_ADDR_OTP | DPOT_RDAC0);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp0en, DPOT_ADDR_OTP_EN | DPOT_RDAC0);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
DPOT_DEVICE_SHOW_SET(rdac1, DPOT_ADDR_RDAC | DPOT_RDAC1);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom1, DPOT_ADDR_EEPROM | DPOT_RDAC1);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance1, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC1);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp1, DPOT_ADDR_OTP | DPOT_RDAC1);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp1en, DPOT_ADDR_OTP_EN | DPOT_RDAC1);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
DPOT_DEVICE_SHOW_SET(rdac2, DPOT_ADDR_RDAC | DPOT_RDAC2);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom2, DPOT_ADDR_EEPROM | DPOT_RDAC2);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance2, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC2);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp2, DPOT_ADDR_OTP | DPOT_RDAC2);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp2en, DPOT_ADDR_OTP_EN | DPOT_RDAC2);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
DPOT_DEVICE_SHOW_SET(rdac3, DPOT_ADDR_RDAC | DPOT_RDAC3);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom3, DPOT_ADDR_EEPROM | DPOT_RDAC3);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance3, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC3);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp3, DPOT_ADDR_OTP | DPOT_RDAC3);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp3en, DPOT_ADDR_OTP_EN | DPOT_RDAC3);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
DPOT_DEVICE_SHOW_SET(rdac4, DPOT_ADDR_RDAC | DPOT_RDAC4);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom4, DPOT_ADDR_EEPROM | DPOT_RDAC4);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance4, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC4);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp4, DPOT_ADDR_OTP | DPOT_RDAC4);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp4en, DPOT_ADDR_OTP_EN | DPOT_RDAC4);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
DPOT_DEVICE_SHOW_SET(rdac5, DPOT_ADDR_RDAC | DPOT_RDAC5);
|
|
|
|
DPOT_DEVICE_SHOW_SET(eeprom5, DPOT_ADDR_EEPROM | DPOT_RDAC5);
|
|
|
|
DPOT_DEVICE_SHOW_ONLY(tolerance5, DPOT_ADDR_EEPROM | DPOT_TOL_RDAC5);
|
2010-05-24 23:33:16 +02:00
|
|
|
DPOT_DEVICE_SHOW_SET(otp5, DPOT_ADDR_OTP | DPOT_RDAC5);
|
|
|
|
DPOT_DEVICE_SHOW_SET(otp5en, DPOT_ADDR_OTP_EN | DPOT_RDAC5);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
|
|
|
|
static const struct attribute *dpot_attrib_wipers[] = {
|
|
|
|
&dev_attr_rdac0.attr,
|
|
|
|
&dev_attr_rdac1.attr,
|
|
|
|
&dev_attr_rdac2.attr,
|
|
|
|
&dev_attr_rdac3.attr,
|
|
|
|
&dev_attr_rdac4.attr,
|
|
|
|
&dev_attr_rdac5.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute *dpot_attrib_eeprom[] = {
|
|
|
|
&dev_attr_eeprom0.attr,
|
|
|
|
&dev_attr_eeprom1.attr,
|
|
|
|
&dev_attr_eeprom2.attr,
|
|
|
|
&dev_attr_eeprom3.attr,
|
|
|
|
&dev_attr_eeprom4.attr,
|
|
|
|
&dev_attr_eeprom5.attr,
|
|
|
|
NULL
|
2009-12-15 03:00:15 +01:00
|
|
|
};
|
|
|
|
|
2010-05-24 23:33:16 +02:00
|
|
|
static const struct attribute *dpot_attrib_otp[] = {
|
|
|
|
&dev_attr_otp0.attr,
|
|
|
|
&dev_attr_otp1.attr,
|
|
|
|
&dev_attr_otp2.attr,
|
|
|
|
&dev_attr_otp3.attr,
|
|
|
|
&dev_attr_otp4.attr,
|
|
|
|
&dev_attr_otp5.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute *dpot_attrib_otp_en[] = {
|
|
|
|
&dev_attr_otp0en.attr,
|
|
|
|
&dev_attr_otp1en.attr,
|
|
|
|
&dev_attr_otp2en.attr,
|
|
|
|
&dev_attr_otp3en.attr,
|
|
|
|
&dev_attr_otp4en.attr,
|
|
|
|
&dev_attr_otp5en.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
static const struct attribute *dpot_attrib_tolerance[] = {
|
|
|
|
&dev_attr_tolerance0.attr,
|
|
|
|
&dev_attr_tolerance1.attr,
|
|
|
|
&dev_attr_tolerance2.attr,
|
|
|
|
&dev_attr_tolerance3.attr,
|
|
|
|
&dev_attr_tolerance4.attr,
|
|
|
|
&dev_attr_tolerance5.attr,
|
|
|
|
NULL
|
2009-12-15 03:00:15 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
2010-05-24 23:33:13 +02:00
|
|
|
#define DPOT_DEVICE_DO_CMD(_name, _cmd) static ssize_t \
|
|
|
|
set_##_name(struct device *dev, \
|
|
|
|
struct device_attribute *attr, \
|
|
|
|
const char *buf, size_t count) \
|
|
|
|
{ \
|
|
|
|
return sysfs_do_cmd(dev, attr, buf, count, _cmd); \
|
|
|
|
} \
|
|
|
|
static DEVICE_ATTR(_name, S_IWUSR | S_IRUGO, NULL, set_##_name);
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
DPOT_DEVICE_DO_CMD(inc_all, DPOT_INC_ALL);
|
|
|
|
DPOT_DEVICE_DO_CMD(dec_all, DPOT_DEC_ALL);
|
|
|
|
DPOT_DEVICE_DO_CMD(inc_all_6db, DPOT_INC_ALL_6DB);
|
|
|
|
DPOT_DEVICE_DO_CMD(dec_all_6db, DPOT_DEC_ALL_6DB);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
static struct attribute *ad525x_attributes_commands[] = {
|
|
|
|
&dev_attr_inc_all.attr,
|
|
|
|
&dev_attr_dec_all.attr,
|
|
|
|
&dev_attr_inc_all_6db.attr,
|
|
|
|
&dev_attr_dec_all_6db.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group ad525x_group_commands = {
|
|
|
|
.attrs = ad525x_attributes_commands,
|
|
|
|
};
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
__devinit int ad_dpot_add_files(struct device *dev,
|
|
|
|
unsigned features, unsigned rdac)
|
2009-12-15 03:00:15 +01:00
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
int err = sysfs_create_file(&dev->kobj,
|
|
|
|
dpot_attrib_wipers[rdac]);
|
|
|
|
if (features & F_CMD_EEP)
|
|
|
|
err |= sysfs_create_file(&dev->kobj,
|
|
|
|
dpot_attrib_eeprom[rdac]);
|
|
|
|
if (features & F_CMD_TOL)
|
|
|
|
err |= sysfs_create_file(&dev->kobj,
|
|
|
|
dpot_attrib_tolerance[rdac]);
|
2010-05-24 23:33:16 +02:00
|
|
|
if (features & F_CMD_OTP) {
|
|
|
|
err |= sysfs_create_file(&dev->kobj,
|
|
|
|
dpot_attrib_otp_en[rdac]);
|
|
|
|
err |= sysfs_create_file(&dev->kobj,
|
|
|
|
dpot_attrib_otp[rdac]);
|
|
|
|
}
|
2009-12-15 03:00:15 +01:00
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if (err)
|
|
|
|
dev_err(dev, "failed to register sysfs hooks for RDAC%d\n",
|
|
|
|
rdac);
|
|
|
|
|
|
|
|
return err;
|
2009-12-15 03:00:15 +01:00
|
|
|
}
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
inline void ad_dpot_remove_files(struct device *dev,
|
|
|
|
unsigned features, unsigned rdac)
|
2009-12-15 03:00:15 +01:00
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
sysfs_remove_file(&dev->kobj,
|
|
|
|
dpot_attrib_wipers[rdac]);
|
|
|
|
if (features & F_CMD_EEP)
|
|
|
|
sysfs_remove_file(&dev->kobj,
|
|
|
|
dpot_attrib_eeprom[rdac]);
|
|
|
|
if (features & F_CMD_TOL)
|
|
|
|
sysfs_remove_file(&dev->kobj,
|
|
|
|
dpot_attrib_tolerance[rdac]);
|
2010-05-24 23:33:16 +02:00
|
|
|
if (features & F_CMD_OTP) {
|
|
|
|
sysfs_remove_file(&dev->kobj,
|
|
|
|
dpot_attrib_otp_en[rdac]);
|
|
|
|
sysfs_remove_file(&dev->kobj,
|
|
|
|
dpot_attrib_otp[rdac]);
|
|
|
|
}
|
2009-12-15 03:00:15 +01:00
|
|
|
}
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
__devinit int ad_dpot_probe(struct device *dev,
|
|
|
|
struct ad_dpot_bus_data *bdata, const struct ad_dpot_id *id)
|
2009-12-15 03:00:15 +01:00
|
|
|
{
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct dpot_data *data;
|
|
|
|
int i, err = 0;
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
data = kzalloc(sizeof(struct dpot_data), GFP_KERNEL);
|
|
|
|
if (!data) {
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
dev_set_drvdata(dev, data);
|
2009-12-15 03:00:15 +01:00
|
|
|
mutex_init(&data->update_lock);
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
data->bdata = *bdata;
|
|
|
|
data->devid = id->devid;
|
|
|
|
|
|
|
|
data->max_pos = 1 << DPOT_MAX_POS(data->devid);
|
|
|
|
data->rdac_mask = data->max_pos - 1;
|
|
|
|
data->feat = DPOT_FEAT(data->devid);
|
|
|
|
data->uid = DPOT_UID(data->devid);
|
|
|
|
data->wipers = DPOT_WIPERS(data->devid);
|
|
|
|
|
2010-05-24 23:33:16 +02:00
|
|
|
for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if (data->wipers & (1 << i)) {
|
|
|
|
err = ad_dpot_add_files(dev, data->feat, i);
|
|
|
|
if (err)
|
|
|
|
goto exit_remove_files;
|
|
|
|
/* power-up midscale */
|
|
|
|
if (data->feat & F_RDACS_WONLY)
|
|
|
|
data->rdac_cache[i] = data->max_pos / 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (data->feat & F_CMD_INC)
|
|
|
|
err = sysfs_create_group(&dev->kobj, &ad525x_group_commands);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
if (err) {
|
|
|
|
dev_err(dev, "failed to register sysfs hooks\n");
|
|
|
|
goto exit_free;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_info(dev, "%s %d-Position Digital Potentiometer registered\n",
|
|
|
|
id->name, data->max_pos);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
exit_remove_files:
|
2010-05-24 23:33:16 +02:00
|
|
|
for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if (data->wipers & (1 << i))
|
|
|
|
ad_dpot_remove_files(dev, data->feat, i);
|
|
|
|
|
2009-12-15 03:00:15 +01:00
|
|
|
exit_free:
|
|
|
|
kfree(data);
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
dev_set_drvdata(dev, NULL);
|
2009-12-15 03:00:15 +01:00
|
|
|
exit:
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
dev_err(dev, "failed to create client for %s ID 0x%lX\n",
|
|
|
|
id->name, id->devid);
|
2009-12-15 03:00:15 +01:00
|
|
|
return err;
|
|
|
|
}
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
EXPORT_SYMBOL(ad_dpot_probe);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
__devexit int ad_dpot_remove(struct device *dev)
|
2009-12-15 03:00:15 +01:00
|
|
|
{
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
struct dpot_data *data = dev_get_drvdata(dev);
|
|
|
|
int i;
|
|
|
|
|
2010-05-24 23:33:16 +02:00
|
|
|
for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
if (data->wipers & (1 << i))
|
|
|
|
ad_dpot_remove_files(dev, data->feat, i);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
kfree(data);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
EXPORT_SYMBOL(ad_dpot_remove);
|
2009-12-15 03:00:15 +01:00
|
|
|
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>, "
|
ad525x_dpot: add support for SPI parts
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:
AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850
[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 23:33:14 +02:00
|
|
|
"Michael Hennerich <hennerich@blackfin.uclinux.org>");
|
|
|
|
MODULE_DESCRIPTION("Digital potentiometer driver");
|
2009-12-15 03:00:15 +01:00
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_VERSION(DRIVER_VERSION);
|