From mboxrd@z Thu Jan 1 00:00:00 1970 From: arno@natisbad.org (Arnaud Ebalard) Subject: [PATCH] hwmon: add support for GMT G751 chip in lm75 driver Date: Sat, 09 Nov 2013 18:39:14 +0100 Message-ID: <87bo1th3ul.fsf@natisbad.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-doc-owner@vger.kernel.org To: Guenter Roeck Cc: Jean Delvare , Rob Herring , Pawel Moll , Mark Rutland , Stephen Warren , Ian Campbell , Rob Landley , Grant Likely , Linus Walleij , Arnd Bergmann , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, lm-sensors@lm-sensors.org List-Id: devicetree@vger.kernel.org This was tested on a NETGEAR ReadyNAS 2120 device (Marvell Armada XP based board, via DT). Signed-off-by: Arnaud Ebalard --- Hi Guenter, As a side note, I removed the hunk that was present in previous patch t= o add gmt to the list of DT vendor prefixes because I noticed someone had taken care: https://lkml.org/lkml/2013/9/12/365 =46or the records, here is what I get on my NAS with the attached patch= : root@thin:/sys# sensors g762-i2c-0-3e Adapter: mv64xxx_i2c adapter fan1: 5461 RPM (div =3D 1) g762-i2c-0-48 Adapter: mv64xxx_i2c adapter fan1: 5461 RPM (div =3D 1) g762-i2c-0-49 Adapter: mv64xxx_i2c adapter fan1: 5461 RPM (div =3D 1) g751-i2c-0-4c Adapter: mv64xxx_i2c adapter temp1: +30.5=C2=B0C (high =3D +80.0=C2=B0C, hyst =3D +75.0=C2=B0= C) armada_thermal-virtual-0 Adapter: Virtual device temp1: +34.2=C2=B0C root@thin:/sys/bus/i2c/drivers/lm75/0-004c# ls driver modalias subsystem temp1_max uevent hwmon name temp1_input temp1_max_hyst root@thin:/sys/bus/i2c/drivers/lm75/0-004c# dmesg | grep lm [ 120.960471] lm75 0-004c: hwmon3: sensor 'g751' just by adding the following to the .dts: g751: g751@4c { compatible =3D "gmt,g751"; reg =3D <0x4c>; }; Do not hesitate to tell me if I missed something. Cheers, a+ Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 + drivers/hwmon/Kconfig | 1 + drivers/hwmon/lm75.c | 3 +++ 3 files changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt = b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index ad6a738..c98e5a2 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -35,6 +35,7 @@ fsl,mc13892 MC13892: Power Management Integrated Cir= cuit (PMIC) for i.MX35/51 fsl,mma8450 MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Acceleromet= er fsl,mpr121 MPR121: Proximity Capacitive Touch Sensor Controller fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec +gmt,g751 G751: Digital Temperature Sensor and Thermal Watchdog with T= wo-Wire Interface infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max= 100khz) infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz) maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index b3ab9d4..52d548f 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -656,6 +656,7 @@ config SENSORS_LM75 =20 - Analog Devices ADT75 - Dallas Semiconductor DS75, DS1775 and DS7505 + - Global Mixed-mode Technology (GMT) G751 - Maxim MAX6625 and MAX6626 - Microchip MCP980x - National Semiconductor LM75, LM75A diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c index c03b490..7e3ef13 100644 --- a/drivers/hwmon/lm75.c +++ b/drivers/hwmon/lm75.c @@ -39,6 +39,7 @@ enum lm75_type { /* keep sorted in alphabetical orde= r */ ds1775, ds75, ds7505, + g751, lm75, lm75a, max6625, @@ -208,6 +209,7 @@ lm75_probe(struct i2c_client *client, const struct = i2c_device_id *id) data->resolution =3D 12; data->sample_time =3D HZ / 4; break; + case g751: case lm75: case lm75a: data->resolution =3D 9; @@ -296,6 +298,7 @@ static const struct i2c_device_id lm75_ids[] =3D { { "ds1775", ds1775, }, { "ds75", ds75, }, { "ds7505", ds7505, }, + { "g751", g751, }, { "lm75", lm75, }, { "lm75a", lm75a, }, { "max6625", max6625, }, --=20 1.8.4.rc3