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| author | Michael Hennerich <michael.hennerich@analog.com> | 2010-05-24 14:33:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 08:07:04 -0700 |
| commit | c74cba610c9559e72377fd9725a3d329581aa256 (patch) | |
| tree | 07d19e28be3c83eac3d6175c7b91b966bb28f69a /drivers/misc | |
| parent | e3ae68476ce0636554b5d95a33777f80ba407dc0 (diff) | |
| download | linux-exynos-c74cba610c9559e72377fd9725a3d329581aa256.tar.gz linux-exynos-c74cba610c9559e72377fd9725a3d329581aa256.tar.bz2 linux-exynos-c74cba610c9559e72377fd9725a3d329581aa256.zip | |
ad525x_dpot: add support for ADN2860 and AD528x pots
New parts supported:
AD5280, AD5282, ADN2860
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/misc/ad525x_dpot-i2c.c | 3 | ||||
| -rw-r--r-- | drivers/misc/ad525x_dpot.c | 28 | ||||
| -rw-r--r-- | drivers/misc/ad525x_dpot.h | 6 |
4 files changed, 26 insertions, 14 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 90c3415dc90a..233886d00861 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -23,7 +23,8 @@ config AD525X_DPOT AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235, AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293, AD7376, AD8400, AD8402, AD8403, ADN2850, AD5241, AD5242, - AD5243, AD5245, AD5246, AD5247, AD5248 + AD5243, AD5245, AD5246, AD5247, AD5248, AD5280, AD5282, + ADN2860 digital potentiometer chips. See Documentation/misc-devices/ad525x_dpot.txt for the diff --git a/drivers/misc/ad525x_dpot-i2c.c b/drivers/misc/ad525x_dpot-i2c.c index 0dfad4e70f74..abba18efdde3 100644 --- a/drivers/misc/ad525x_dpot-i2c.c +++ b/drivers/misc/ad525x_dpot-i2c.c @@ -94,6 +94,9 @@ static const struct i2c_device_id ad_dpot_id[] = { {"ad5246", AD5246_ID}, {"ad5247", AD5247_ID}, {"ad5248", AD5248_ID}, + {"ad5280", AD5280_ID}, + {"ad5282", AD5282_ID}, + {"adn2860", ADN2860_ID}, {} }; MODULE_DEVICE_TABLE(i2c, ad_dpot_id); diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c index 35a4c4b343d4..255ba4b5e355 100644 --- a/drivers/misc/ad525x_dpot.c +++ b/drivers/misc/ad525x_dpot.c @@ -44,6 +44,9 @@ * AD5243 2 256 2.5, 10, 50, 100 * AD5248 2 256 2.5, 10, 50, 100 * AD5242 2 256 20, 50, 200 + * AD5280 1 256 20, 50, 200 + * AD5282 2 256 20, 50, 200 + * ADN2860 3 512 25, 250 * * See Documentation/misc-devices/ad525x_dpot.txt for more info. * @@ -154,6 +157,8 @@ static s32 dpot_read_i2c(struct dpot_data *dpot, u8 reg) case DPOT_UID(AD5242_ID): case DPOT_UID(AD5243_ID): case DPOT_UID(AD5248_ID): + case DPOT_UID(AD5280_ID): + case DPOT_UID(AD5282_ID): ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ? 0 : DPOT_AD5291_RDAC_AB; return dpot_read_r8d8(dpot, ctrl); @@ -250,21 +255,22 @@ static s32 dpot_write_i2c(struct dpot_data *dpot, u8 reg, u16 value) case DPOT_UID(AD5242_ID): case DPOT_UID(AD5243_ID): case DPOT_UID(AD5248_ID): - ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ? 0 : DPOT_AD5291_RDAC_AB; + case DPOT_UID(AD5280_ID): + case DPOT_UID(AD5282_ID): + ctrl = ((reg & DPOT_RDAC_MASK) == DPOT_RDAC0) ? + 0 : DPOT_AD5291_RDAC_AB; return dpot_write_r8d8(dpot, ctrl, value); break; - - default: - if (reg & DPOT_ADDR_CMD) - return dpot_write_d8(dpot, reg); + if (reg & DPOT_ADDR_CMD) + return dpot_write_d8(dpot, reg); - 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); + 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); } } diff --git a/drivers/misc/ad525x_dpot.h b/drivers/misc/ad525x_dpot.h index 849c5d0782b2..d789a95cbe09 100644 --- a/drivers/misc/ad525x_dpot.h +++ b/drivers/misc/ad525x_dpot.h @@ -112,8 +112,10 @@ enum dpot_devid { AD5246_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 7, 37), AD5247_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 7, 38), AD5248_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 39), - - + AD5280_ID = DPOT_CONF(F_RDACS_RW, BRDAC0, 8, 40), + AD5282_ID = DPOT_CONF(F_RDACS_RW, BRDAC0 | BRDAC1, 8, 41), + ADN2860_ID = DPOT_CONF(F_RDACS_RW_TOL | F_CMD_INC, + BRDAC0 | BRDAC1 | BRDAC2, 9, 42), }; #define DPOT_RDAC0 0 |