The patch titled Subject: drivers/w1/masters/w1-gpio.c: add DT bindings has been removed from the -mm tree. Its filename was drivers-w1-masters-w1-gpioc-add-dt-bindings.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Daniel Mack <zonque@xxxxxxxxx> Subject: drivers/w1/masters/w1-gpio.c: add DT bindings Add DT bindings to the w1-gpio driver, along with some documentation on how to use them. Signed-off-by: Daniel Mack <zonque@xxxxxxxxx> Cc: Evgeniy Polyakov <zbr@xxxxxxxxxxx> Cc: Ville Syrjala <syrjala@xxxxxx> Cc: Greg KH <greg@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- Documentation/devicetree/bindings/w1/w1-gpio.txt | 22 ++++++ drivers/w1/masters/w1-gpio.c | 46 +++++++++++++ 2 files changed, 68 insertions(+) diff -puN /dev/null Documentation/devicetree/bindings/w1/w1-gpio.txt --- /dev/null +++ a/Documentation/devicetree/bindings/w1/w1-gpio.txt @@ -0,0 +1,22 @@ +w1-gpio devicetree bindings + +Required properties: + + - compatible: "w1-gpio" + - gpios: one or two GPIO specs: + - the first one is used as data I/O pin + - the second one is optional. If specified, it is used as + enable pin for an external pin pullup. + +Optional properties: + + - linux,open-drain: if specified, the data pin is considered in + open-drain mode. + +Examples: + + onewire@0 { + compatible = "w1-gpio"; + gpios = <&gpio 126 0>, <&gpio 105 0>; + }; + diff -puN drivers/w1/masters/w1-gpio.c~drivers-w1-masters-w1-gpioc-add-dt-bindings drivers/w1/masters/w1-gpio.c --- a/drivers/w1/masters/w1-gpio.c~drivers-w1-masters-w1-gpioc-add-dt-bindings +++ a/drivers/w1/masters/w1-gpio.c @@ -14,6 +14,8 @@ #include <linux/slab.h> #include <linux/w1-gpio.h> #include <linux/gpio.h> +#include <linux/of_platform.h> +#include <linux/of_gpio.h> #include "../w1.h" #include "../w1_int.h" @@ -42,12 +44,55 @@ static u8 w1_gpio_read_bit(void *data) return gpio_get_value(pdata->pin) ? 1 : 0; } +#ifdef CONFIG_OF +static struct of_device_id w1_gpio_dt_ids[] = { + { .compatible = "w1-gpio" }, + {} +}; +MODULE_DEVICE_TABLE(of, w1_gpio_dt_ids); + +static int w1_gpio_probe_dt(struct platform_device *pdev) +{ + struct w1_gpio_platform_data *pdata = pdev->dev.platform_data; + struct device_node *np = pdev->dev.of_node; + const struct of_device_id *of_id = + of_match_device(w1_gpio_dt_ids, &pdev->dev); + + if (!of_id) + return 0; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + if (of_get_property(np, "linux,open-drain", NULL)) + pdata->is_open_drain = 1; + + pdata->pin = of_get_gpio(np, 0); + pdata->ext_pullup_enable_pin = of_get_gpio(np, 1); + pdev->dev.platform_data = pdata; + + return 0; +} +#else +static int w1_gpio_probe_dt(struct platform_device *pdev) +{ + return 0; +} +#endif + static int __init w1_gpio_probe(struct platform_device *pdev) { struct w1_bus_master *master; struct w1_gpio_platform_data *pdata = pdev->dev.platform_data; int err; + err = w1_gpio_probe_dt(pdev); + if (err < 0) + return err; + + pdata = pdev->dev.platform_data; + if (!pdata) return -ENXIO; @@ -151,6 +196,7 @@ static struct platform_driver w1_gpio_dr .driver = { .name = "w1-gpio", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(w1_gpio_dt_ids), }, .remove = __exit_p(w1_gpio_remove), .suspend = w1_gpio_suspend, _ Patches currently in -mm which might be from zonque@xxxxxxxxx are linux-next.patch drivers-misc-lis3lv02d-add-generic-dt-matching-code.patch drivers-misc-lis3lv02d-lis3lv02d_spic-add-dt-matching-table-passthru-code.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html