From bcc1dd4cd77ec168894ea325b4e89b15a8b5b4f6 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 28 Jun 2012 12:20:22 +0200 Subject: mfd: Add device-tree entry to enable tps65910 external 32-kHz oscillator Add device-tree entry to enable external 32-kHz crystal oscillator input. Compile-only tested. Signed-off-by: Johan Hovold Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/mfd/tps65910.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/tps65910.txt b/Documentation/devicetree/bindings/mfd/tps65910.txt index 645f5eaadb3f..0f5d9b74f4b9 100644 --- a/Documentation/devicetree/bindings/mfd/tps65910.txt +++ b/Documentation/devicetree/bindings/mfd/tps65910.txt @@ -29,6 +29,8 @@ Optional properties: comparator. (see VMBCH_VSEL in TPS65910 datasheet) - ti,vmbch2-threshold: (tps65911) main battery discharged threshold comparator. (see VMBCH_VSEL in TPS65910 datasheet) +- ti,en-ck32k-xtal: enable external 32-kHz crystal oscillator (see CK32K_CTRL + in TPS6591X datasheet) - ti,en-gpio-sleep: enable sleep control for gpios There should be 9 entries here, one for each gpio. @@ -53,7 +55,7 @@ Example: ti,vmbch-threshold = 0; ti,vmbch2-threshold = 0; - + ti,en-ck32k-xtal; ti,en-gpio-sleep = <0 0 1 0 0 0 0 0 0>; regulators { -- cgit v1.2.3 From c1516f840dcd91e76712a047993e09d95034a66d Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Fri, 6 Jul 2012 17:02:55 +0530 Subject: mfd: Add device tree support for max77686 This patch adds device tree support for mfd driver and adds Documentation/devicetree/bindings/mfd/max77686.txt. This patch also intialize max77686 pointer to NULL in max77686_i2c_probe to silent a compile time warning. Signed-off-by: Yadwinder Singh Brar Reviwed-by: Mark Brown Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/mfd/max77686.txt | 59 ++++++++++++++++++++++ drivers/mfd/max77686.c | 45 ++++++++++++++--- 2 files changed, 98 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/max77686.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Documentation/devicetree/bindings/mfd/max77686.txt new file mode 100644 index 000000000000..c6a3469d3436 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/max77686.txt @@ -0,0 +1,59 @@ +Maxim MAX77686 multi-function device + +MAX77686 is a Mulitifunction device with PMIC, RTC and Charger on chip. It is +interfaced to host controller using i2c interface. PMIC and Charger submodules +are addressed using same i2c slave address whereas RTC submodule uses +different i2c slave address,presently for which we are statically creating i2c +client while probing.This document describes the binding for mfd device and +PMIC submodule. + +Required properties: +- compatible : Must be "maxim,max77686"; +- reg : Specifies the i2c slave address of PMIC block. +- interrupts : This i2c device has an IRQ line connected to the main SoC. +- interrupt-parent : The parent interrupt controller. + +Optional node: +- voltage-regulators : The regulators of max77686 have to be instantiated + under subnode named "voltage-regulators" using the following format. + + regulator_name { + regulator-compatible = LDOn/BUCKn + standard regulator constraints.... + }; + refer Documentation/devicetree/bindings/regulator/regulator.txt + + The regulator-compatible property of regulator should initialized with string +to get matched with their hardware counterparts as follow: + + -LDOn : for LDOs, where n can lie in range 1 to 26. + example: LDO1, LDO2, LDO26. + -BUCKn : for BUCKs, where n can lie in range 1 to 9. + example: BUCK1, BUCK5, BUCK9. + +Example: + + max77686@09 { + compatible = "maxim,max77686"; + interrupt-parent = <&wakeup_eint>; + interrupts = <26 0>; + reg = <0x09>; + + voltage-regulators { + ldo11_reg { + regulator-compatible = "LDO11"; + regulator-name = "vdd_ldo11"; + regulator-min-microvolt = <1900000>; + regulator-max-microvolt = <1900000>; + regulator-always-on; + }; + + buck1_reg { + regulator-compatible = "BUCK1"; + regulator-name = "vdd_mif"; + regulator-min-microvolt = <950000>; + regulator-max-microvolt = <1300000>; + regulator-always-on; + regulator-boot-on; + }; + } diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c index c66639d681e9..3e31d05906b2 100644 --- a/drivers/mfd/max77686.c +++ b/drivers/mfd/max77686.c @@ -34,6 +34,11 @@ #define I2C_ADDR_RTC (0x0C >> 1) +static struct of_device_id __devinitdata max77686_pmic_dt_match[] = { + {.compatible = "maxim,max77686", .data = 0}, + {}, +}; + static struct mfd_cell max77686_devs[] = { { .name = "max77686-pmic", }, { .name = "max77686-rtc", }, @@ -44,14 +49,46 @@ static struct regmap_config max77686_regmap_config = { .val_bits = 8, }; +#ifdef CONFIG_OF +static struct max77686_platform_data *max77686_i2c_parse_dt_pdata(struct device + *dev) +{ + struct max77686_platform_data *pd; + + pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); + if (!pd) { + dev_err(dev, "could not allocate memory for pdata\n"); + return NULL; + } + + dev->platform_data = pd; + return pd; +} +#else +static struct max77686_platform_data *max77686_i2c_parse_dt_pdata(struct device + *dev) +{ + return 0; +} +#endif + static int max77686_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { - struct max77686_dev *max77686; + struct max77686_dev *max77686 = NULL; struct max77686_platform_data *pdata = i2c->dev.platform_data; unsigned int data; int ret = 0; + if (i2c->dev.of_node) + pdata = max77686_i2c_parse_dt_pdata(&i2c->dev); + + if (!pdata) { + ret = -EIO; + dev_err(&i2c->dev, "No platform data found.\n"); + goto err; + } + max77686 = kzalloc(sizeof(struct max77686_dev), GFP_KERNEL); if (max77686 == NULL) return -ENOMEM; @@ -70,11 +107,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c, max77686->i2c = i2c; max77686->type = id->driver_data; - if (!pdata) { - ret = -EIO; - goto err; - } - max77686->wakeup = pdata->wakeup; max77686->irq_gpio = pdata->irq_gpio; max77686->irq = i2c->irq; @@ -130,6 +162,7 @@ static struct i2c_driver max77686_i2c_driver = { .driver = { .name = "max77686", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(max77686_pmic_dt_match), }, .probe = max77686_i2c_probe, .remove = max77686_i2c_remove, -- cgit v1.2.3 From ad95ad10b0881dd317d833dd37ba6706d704073a Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 13 Jul 2012 12:42:26 +0200 Subject: Documentation: Describe the AB8500 Device Tree bindings Although for the most part, the AB8500 uses common bindings, some of the ways in which they are used differ slightly to the common uses of those bindings. To clear up some of these varying concepts we provide some documentation describing each of the properties and how they are used. Signed-off-by: Lee Jones Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/mfd/ab8500.txt | 123 +++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/ab8500.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/ab8500.txt b/Documentation/devicetree/bindings/mfd/ab8500.txt new file mode 100644 index 000000000000..69e757a657a0 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ab8500.txt @@ -0,0 +1,123 @@ +* AB8500 Multi-Functional Device (MFD) + +Required parent device properties: +- compatible : contains "stericsson,ab8500"; +- interrupts : contains the IRQ line for the AB8500 +- interrupt-controller : describes the AB8500 as an Interrupt Controller (has its own domain) +- #interrupt-cells : should be 2, for 2-cell format + - The first cell is the AB8500 local IRQ number + - The second cell is used to specify optional parameters + - bits[3:0] trigger type and level flags: + 1 = low-to-high edge triggered + 2 = high-to-low edge triggered + 4 = active high level-sensitive + 8 = active low level-sensitive + +Optional parent device properties: +- reg : contains the PRCMU mailbox address for the AB8500 i2c port + +The AB8500 consists of a large and varied group of sub-devices: + +Device IRQ Names Supply Names Description +------ --------- ------------ ----------- +ab8500-bm : : : Battery Manager +ab8500-btemp : : : Battery Temperature +ab8500-charger : : : Battery Charger +ab8500-fg : : : Fuel Gauge +ab8500-gpadc : HW_CONV_END : vddadc : Analogue to Digital Converter + SW_CONV_END : : +ab8500-gpio : : : GPIO Controller +ab8500-ponkey : ONKEY_DBF : : Power-on Key + ONKEY_DBR : : +ab8500-pwm : : : Pulse Width Modulator +ab8500-regulator : : : Regulators +ab8500-rtc : 60S : : Real Time Clock + : ALARM : : +ab8500-sysctrl : : : System Control +ab8500-usb : ID_WAKEUP_R : vddulpivio18 : Universal Serial Bus + : ID_WAKEUP_F : v-ape : + : VBUS_DET_F : musb_1v8 : + : VBUS_DET_R : : + : USB_LINK_STATUS : : + : USB_ADP_PROBE_PLUG : : + : USB_ADP_PROBE_UNPLUG : : + +Required child device properties: +- compatible : "stericsson,ab8500-[bm|btemp|charger|fg|gpadc|gpio|ponkey| + pwm|regulator|rtc|sysctrl|usb]"; + +Optional child device properties: +- interrupts : contains the device IRQ(s) using the 2-cell format (see above) +- interrupt-names : contains names of IRQ resource in the order in which they were + supplied in the interrupts property +- -supply : contains a phandle to the regulator supply node in Device Tree + +ab8500@5 { + compatible = "stericsson,ab8500"; + reg = <5>; /* mailbox 5 is i2c */ + interrupts = <0 40 0x4>; + interrupt-controller; + #interrupt-cells = <2>; + + ab8500-rtc { + compatible = "stericsson,ab8500-rtc"; + interrupts = <17 0x4 + 18 0x4>; + interrupt-names = "60S", "ALARM"; + }; + + ab8500-gpadc { + compatible = "stericsson,ab8500-gpadc"; + interrupts = <32 0x4 + 39 0x4>; + interrupt-names = "HW_CONV_END", "SW_CONV_END"; + vddadc-supply = <&ab8500_ldo_tvout_reg>; + }; + + ab8500-usb { + compatible = "stericsson,ab8500-usb"; + interrupts = < 90 0x4 + 96 0x4 + 14 0x4 + 15 0x4 + 79 0x4 + 74 0x4 + 75 0x4>; + interrupt-names = "ID_WAKEUP_R", + "ID_WAKEUP_F", + "VBUS_DET_F", + "VBUS_DET_R", + "USB_LINK_STATUS", + "USB_ADP_PROBE_PLUG", + "USB_ADP_PROBE_UNPLUG"; + vddulpivio18-supply = <&ab8500_ldo_initcore_reg>; + v-ape-supply = <&db8500_vape_reg>; + musb_1v8-supply = <&db8500_vsmps2_reg>; + }; + + ab8500-ponkey { + compatible = "stericsson,ab8500-ponkey"; + interrupts = <6 0x4 + 7 0x4>; + interrupt-names = "ONKEY_DBF", "ONKEY_DBR"; + }; + + ab8500-sysctrl { + compatible = "stericsson,ab8500-sysctrl"; + }; + + ab8500-pwm { + compatible = "stericsson,ab8500-pwm"; + }; + + ab8500-regulators { + compatible = "stericsson,ab8500-regulator"; + + ab8500_ldo_aux1_reg: ab8500_ldo_aux1 { + /* + * See: Documentation/devicetree/bindings/regulator/regulator.txt + * for more information on regulators + */ + }; + }; +}; -- cgit v1.2.3 From 1fc74aef0420f6bad7b632cbc961edac40a3eeae Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Mon, 16 Jul 2012 11:49:44 +0200 Subject: mfd: Add support for twl6041 The delta between twl6040 and twl6041 is small, the main difference is in the number of GPOs (3 on twl6040, 1 on twl6041). Signed-off-by: Peter Ujfalusi Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/mfd/twl6040.txt | 2 +- drivers/mfd/twl6040-core.c | 1 + include/linux/mfd/twl6040.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/twl6040.txt b/Documentation/devicetree/bindings/mfd/twl6040.txt index bc67c6f424aa..c855240f3a0e 100644 --- a/Documentation/devicetree/bindings/mfd/twl6040.txt +++ b/Documentation/devicetree/bindings/mfd/twl6040.txt @@ -6,7 +6,7 @@ They are connected ot the host processor via i2c for commands, McPDM for audio data and commands. Required properties: -- compatible : Must be "ti,twl6040"; +- compatible : "ti,twl6040" for twl6040, "ti,twl6041" for twl6041 - reg: must be 0x4b for i2c address - interrupts: twl6040 has one interrupt line connecteded to the main SoC - interrupt-parent: The parent interrupt controller diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index 5f620ae3b1f9..b0fad0ffca56 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -679,6 +679,7 @@ static int __devexit twl6040_remove(struct i2c_client *client) static const struct i2c_device_id twl6040_i2c_id[] = { { "twl6040", 0, }, + { "twl6041", 0, }, { }, }; MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 00b330e578b1..eaad49f7c130 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -163,6 +163,7 @@ #define TWL6040_REV_ES1_0 0x00 #define TWL6040_REV_ES1_1 0x01 /* Rev ES1.1 and ES1.2 */ #define TWL6040_REV_ES1_3 0x02 +#define TWL6041_REV_ES2_0 0x10 #define TWL6040_IRQ_TH 0 #define TWL6040_IRQ_PLUG 1 -- cgit v1.2.3