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authorAndrew Bresticker <abrestic@chromium.org>2013-12-26 13:48:46 -0800
committerMark Brown <broonie@linaro.org>2014-01-06 18:09:36 +0000
commit762a8ee808972354ce4bca988309aa7fb63ed5ae (patch)
tree19fed2a02e18080a06aef61eae22131e3c494f1f /include
parentbc2571f4ba375101c9d0b7d46d8c241822652433 (diff)
downloadblackbird-op-linux-762a8ee808972354ce4bca988309aa7fb63ed5ae.tar.gz
blackbird-op-linux-762a8ee808972354ce4bca988309aa7fb63ed5ae.zip
regulator: as3722: detect SD0 low-voltage mode
SD0 may operate in low-voltage mode, with a minimum of 0.41V and a maximum of 1.5V. This is indicated by bit 4 of FUSE7. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Vince Hsu <vinceh@nvidia.com> broonie.e6264@m.evernote.com Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mfd/as3722.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mfd/as3722.h b/include/linux/mfd/as3722.h
index 16bf8a0dcd97..bb9616dc0efa 100644
--- a/include/linux/mfd/as3722.h
+++ b/include/linux/mfd/as3722.h
@@ -151,6 +151,7 @@
#define AS3722_ASIC_ID1_REG 0x90
#define AS3722_ASIC_ID2_REG 0x91
#define AS3722_LOCK_REG 0x9E
+#define AS3722_FUSE7_REG 0xA7
#define AS3722_MAX_REGISTER 0xF4
#define AS3722_SD0_EXT_ENABLE_MASK 0x03
@@ -224,6 +225,7 @@
#define AS3722_SD_VSEL_MASK 0x7F
#define AS3722_SD0_VSEL_MIN 0x01
#define AS3722_SD0_VSEL_MAX 0x5A
+#define AS3722_SD0_VSEL_LOW_VOL_MAX 0x6E
#define AS3722_SD2_VSEL_MIN 0x01
#define AS3722_SD2_VSEL_MAX 0x7F
@@ -341,6 +343,8 @@
#define AS3722_EXT_CONTROL_ENABLE2 0x2
#define AS3722_EXT_CONTROL_ENABLE3 0x3
+#define AS3722_FUSE7_SD0_LOW_VOLTAGE BIT(4)
+
/* Interrupt IDs */
enum as3722_irq {
AS3722_IRQ_LID,
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