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authorMichael Hennerich <michael.hennerich@analog.com>2010-05-24 14:33:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:07:04 -0700
commit59592d0ccc0000d74ea5fc2a59e3ec0c9ef1fb13 (patch)
tree7a871ad14dfd9e438684787332663fba6f4db7ed /drivers/misc/ad525x_dpot.h
parentc74cba610c9559e72377fd9725a3d329581aa256 (diff)
ad525x_dpot: add support for one time programmable pots
New parts supported: AD5170, AD5171, AD5172, AD5173, AD5273 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/ad525x_dpot.h')
-rw-r--r--drivers/misc/ad525x_dpot.h42
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/misc/ad525x_dpot.h b/drivers/misc/ad525x_dpot.h
index d789a95cbe09..78b89fd2e2fd 100644
--- a/drivers/misc/ad525x_dpot.h
+++ b/drivers/misc/ad525x_dpot.h
@@ -15,17 +15,18 @@
(((features) << 18) | (((wipers) & 0xFF) << 10) | \
((max_pos & 0xF) << 6) | (uid & 0x3F))
-#define DPOT_UID(conf) (conf & 0x3F)
-#define DPOT_MAX_POS(conf) ((conf >> 6) & 0xF)
-#define DPOT_WIPERS(conf) ((conf >> 10) & 0xFF)
-#define DPOT_FEAT(conf) (conf >> 18)
-
-#define BRDAC0 (1 << 0)
-#define BRDAC1 (1 << 1)
-#define BRDAC2 (1 << 2)
-#define BRDAC3 (1 << 3)
-#define BRDAC4 (1 << 4)
-#define BRDAC5 (1 << 5)
+#define DPOT_UID(conf) (conf & 0x3F)
+#define DPOT_MAX_POS(conf) ((conf >> 6) & 0xF)
+#define DPOT_WIPERS(conf) ((conf >> 10) & 0xFF)
+#define DPOT_FEAT(conf) (conf >> 18)
+
+#define BRDAC0 (1 << 0)
+#define BRDAC1 (1 << 1)
+#define BRDAC2 (1 << 2)
+#define BRDAC3 (1 << 3)
+#define BRDAC4 (1 << 4)
+#define BRDAC5 (1 << 5)
+#define MAX_RDACS 6
#define F_CMD_INC (1 << 0) /* Features INC/DEC ALL, 6dB */
#define F_CMD_EEP (1 << 1) /* Features EEPROM */
@@ -116,6 +117,11 @@ enum dpot_devid {
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),
+ AD5273_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 6, 43),
+ AD5171_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 6, 44),
+ AD5170_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0, 8, 45),
+ AD5172_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0 | BRDAC1, 8, 46),
+ AD5173_ID = DPOT_CONF(F_RDACS_RW | F_CMD_OTP, BRDAC0 | BRDAC1, 8, 47),
};
#define DPOT_RDAC0 0
@@ -136,9 +142,11 @@ enum dpot_devid {
#define DPOT_TOL_RDAC5 (DPOT_REG_TOL | DPOT_RDAC5)
/* RDAC-to-EEPROM Interface Commands */
-#define DPOT_ADDR_RDAC (0x00 << 5)
-#define DPOT_ADDR_EEPROM (0x01 << 5)
-#define DPOT_ADDR_CMD (0x80)
+#define DPOT_ADDR_RDAC (0x0 << 5)
+#define DPOT_ADDR_EEPROM (0x1 << 5)
+#define DPOT_ADDR_OTP (0x1 << 6)
+#define DPOT_ADDR_CMD (0x1 << 7)
+#define DPOT_ADDR_OTP_EN (0x1 << 9)
#define DPOT_DEC_ALL_6DB (DPOT_ADDR_CMD | (0x4 << 3))
#define DPOT_INC_ALL_6DB (DPOT_ADDR_CMD | (0x9 << 3))
@@ -161,6 +169,12 @@ enum dpot_devid {
/* AD524x use special commands */
#define DPOT_AD5291_RDAC_AB 0x80
+#define DPOT_AD5273_FUSE 0x80
+#define DPOT_AD5270_2_3_FUSE 0x20
+#define DPOT_AD5270_2_3_OW 0x08
+#define DPOT_AD5272_3_A0 0x08
+#define DPOT_AD5270_2FUSE 0x80
+
struct dpot_data;
struct ad_dpot_bus_ops {