From 228b687d9e20f367e4d5ea8723e3abbf0892db61 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Mon, 17 Aug 2015 07:21:43 -0700 Subject: hwmon: (ltc2978) Add support for LTC3886 LTC3886 is a is a dual PolyPhase DC/DC synchronous step-down switching regulator controller. It is mostly command compatible to LTC3883, but supports two phases instead of one. Suggested-by: Michael Jones Tested-by: Michael Jones Signed-off-by: Guenter Roeck --- .../devicetree/bindings/hwmon/ltc2978.txt | 3 ++- Documentation/hwmon/ltc2978 | 23 +++++++++++++--------- 2 files changed, 16 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hwmon/ltc2978.txt b/Documentation/devicetree/bindings/hwmon/ltc2978.txt index 5dc2691ccf08..a7afbf60bb9c 100644 --- a/Documentation/devicetree/bindings/hwmon/ltc2978.txt +++ b/Documentation/devicetree/bindings/hwmon/ltc2978.txt @@ -10,6 +10,7 @@ Required properties: * "lltc,ltc3880" * "lltc,ltc3882" * "lltc,ltc3883" + * "lltc,ltc3886" * "lltc,ltc3887" * "lltc,ltm2987" * "lltc,ltm4676" @@ -25,7 +26,7 @@ Valid names of regulators depend on number of supplies supported per device: * ltc2974, ltc2975 : vout0 - vout3 * ltc2977, ltc2980, ltm2987 : vout0 - vout7 * ltc2978 : vout0 - vout7 - * ltc3880, ltc3882 : vout0 - vout1 + * ltc3880, ltc3882, ltc3886 : vout0 - vout1 * ltc3883 : vout0 * ltm4676 : vout0 - vout1 diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978 index 158355398798..f997aa53eb95 100644 --- a/Documentation/hwmon/ltc2978 +++ b/Documentation/hwmon/ltc2978 @@ -35,6 +35,10 @@ Supported chips: Prefix: 'ltc3883' Addresses scanned: - Datasheet: http://www.linear.com/product/ltc3883 + * Linear Technology LTC3886 + Prefix: 'ltc3886' + Addresses scanned: - + Datasheet: http://www.linear.com/product/ltc3886 * Linear Technology LTC3887 Prefix: 'ltc3887' Addresses scanned: - @@ -60,8 +64,8 @@ LTC2977 is a pin compatible replacement for LTC2978. LTC2980 is a 16-channel Power System Manager, consisting of two LTC2977 in a single die. The chip is instantiated and reported as two separate chips on two different I2C bus addresses. -LTC3880, LTC3882, and LTC3887 are dual output poly-phase step-down DC/DC -controllers. +LTC3880, LTC3882, LTC3886, and LTC3887 are dual output poly-phase step-down +DC/DC controllers. LTC3883 is a single phase step-down DC/DC controller. LTM2987 is a 16-channel Power System Manager with two LTC2977 plus additional components on a single die. The chip is instantiated and reported @@ -113,7 +117,7 @@ in[N]_label "vout[1-8]". LTC2974, LTC2975: N=2-5 LTC2977, LTC2980, LTM2987: N=2-9 LTC2978: N=2-9 - LTC3880, LTC3882, LTC3887, LTM4676: N=2-3 + LTC3880, LTC3882, LTC23886 LTC3887, LTM4676: N=2-3 LTC3883: N=2 in[N]_input Measured output voltage. in[N]_min Minimum output voltage. @@ -161,29 +165,30 @@ temp[N]_highest Highest measured temperature. Not supported for chip temp[N]_reset_history Reset temperature history. Not supported for chip temperature sensor on LTC2974 and LTC2975. -power1_label "pin". LTC3883 only. +power1_label "pin". LTC3883 and LTC3886 only. power1_input Measured input power. power[N]_label "pout[1-4]". LTC2974, LTC2975: N=1-4 LTC2977, LTC2980, LTM2987: Not supported LTC2978: Not supported - LTC3880, LTC3882, LTC3887, LTM4676: N=1-2 + LTC3880, LTC3882, LTC3886, LTC3887, LTM4676: N=1-2 LTC3883: N=2 power[N]_input Measured output power. -curr1_label "iin". LTC3880, LTC3883, LTC3887, and LTM4676 only. +curr1_label "iin". LTC3880, LTC3883, LTC3886, LTC3887, and LTM4676 + only. curr1_input Measured input current. curr1_max Maximum input current. curr1_max_alarm Input current high alarm. -curr1_highest Highest input current. LTC3883 only. -curr1_reset_history Reset input current history. LTC3883 only. +curr1_highest Highest input current. LTC3883 and LTC3886 only. +curr1_reset_history Reset input current history. LTC3883 and LTC3886 only. curr[N]_label "iout[1-4]". LTC2974, LTC2975: N=1-4 LTC2977, LTC2980, LTM2987: not supported LTC2978: not supported - LTC3880, LTC3882, LTC3887, LTM4676: N=2-3 + LTC3880, LTC3882, LTC3886, LTC3887, LTM4676: N=2-3 LTC3883: N=2 curr[N]_input Measured output current. curr[N]_max Maximum output current. -- cgit v1.2.3-59-g8ed1b