From mboxrd@z Thu Jan 1 00:00:00 1970 From: AnilKumar Ch Subject: [PATCH v3 3/4] lis3: lis3lv02d_i2c: Add lis3lv02d device tree init Date: Mon, 17 Sep 2012 12:53:21 +0530 Message-ID: <1347866602-2088-4-git-send-email-anilkumar@ti.com> References: <1347866602-2088-1-git-send-email-anilkumar@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1347866602-2088-1-git-send-email-anilkumar@ti.com> Sender: linux-omap-owner@vger.kernel.org To: arnd@arndb.de Cc: gregkh@linuxfoundation.org, eric.piel@tremplin-utc.net, jic23@cam.ac.uk, greg@kroah.com, akpm@linux-foundation.org, broonie@opensource.wolfsonmicro.com, dmitry.torokhov@gmail.com, tony@atomide.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree-discuss@lists.ozlabs.org, grant.likely@secretlab.ca, AnilKumar Ch List-Id: devicetree@vger.kernel.org Add lis3lv02d device tree initialization code/API to take pdata from device node. Also adds device tree init matching table support to lis3lv02d_i2c driver. If the driver data is passed from device tree, then this driver picks up platform data from device node through common/generic lis3lv02d.c driver. Signed-off-by: AnilKumar Ch --- Documentation/devicetree/bindings/misc/lis302.txt | 36 +++++++++++++++++++++ drivers/misc/lis3lv02d/lis3lv02d_i2c.c | 18 +++++++++++ 2 files changed, 54 insertions(+) diff --git a/Documentation/devicetree/bindings/misc/lis302.txt b/Documentation/devicetree/bindings/misc/lis302.txt index e18af9d..6def86f 100644 --- a/Documentation/devicetree/bindings/misc/lis302.txt +++ b/Documentation/devicetree/bindings/misc/lis302.txt @@ -11,6 +11,12 @@ Required properties for the SPI bindings: constrained by external circuitry - interrupts: the interrupt generated by the device +Required properties for the I2C bindings: + - compatible: should be set to "st,lis3lv02d" + - reg: i2c slave address + - Vdd-supply: The input supply for Vdd + - Vdd_IO-supply: The input supply for Vdd_IO + Optional properties for all bus drivers: @@ -74,3 +80,33 @@ Example for a SPI device node: st,wakeup-z-hi; }; +Example for a I2C device node: + + lis331dlh: lis331dlh@18 { + compatible = "st,lis331dlh", "st,lis3lv02d"; + reg = <0x18>; + Vdd-supply = <&lis3_reg>; + Vdd_IO-supply = <&lis3_reg>; + + st,click-single-x; + st,click-single-y; + st,click-single-z; + st,click-thresh-x = <10>; + st,click-thresh-y = <10>; + st,click-thresh-z = <10>; + st,irq1-click; + st,irq2-click; + st,wakeup-x-lo; + st,wakeup-x-hi; + st,wakeup-y-lo; + st,wakeup-y-hi; + st,wakeup-z-lo; + st,wakeup-z-hi; + st,min-limit-x = <120>; + st,min-limit-y = <120>; + st,min-limit-z = <140>; + st,max-limit-x = <550>; + st,max-limit-y = <550>; + st,max-limit-z = <750>; + }; + diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c index 15255eb..43e3f29 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c @@ -31,6 +31,9 @@ #include #include #include +#include +#include + #include "lis3lv02d.h" #define DRV_NAME "lis3lv02d_i2c" @@ -102,12 +105,26 @@ static int lis3_i2c_init(struct lis3lv02d *lis3) static union axis_conversion lis3lv02d_axis_map = { .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } }; +static struct of_device_id lis3lv02d_i2c_dt_ids[] = { + { .compatible = "st,lis3lv02d" }, + {} +}; +MODULE_DEVICE_TABLE(of, lis3lv02d_i2c_dt_ids); + static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { int ret = 0; struct lis3lv02d_platform_data *pdata = client->dev.platform_data; + if (of_match_device(lis3lv02d_i2c_dt_ids, &client->dev)) { + lis3_dev.of_node = client->dev.of_node; + ret = lis3lv02d_init_dt(&lis3_dev); + if (ret) + return ret; + pdata = lis3_dev.pdata; + } + if (pdata) { if ((pdata->driver_features & LIS3_USE_BLOCK_READ) && (i2c_check_functionality(client->adapter, @@ -255,6 +272,7 @@ static struct i2c_driver lis3lv02d_i2c_driver = { .name = DRV_NAME, .owner = THIS_MODULE, .pm = &lis3_pm_ops, + .of_match_table = of_match_ptr(lis3lv02d_i2c_dt_ids), }, .probe = lis3lv02d_i2c_probe, .remove = __devexit_p(lis3lv02d_i2c_remove), -- 1.7.9.5