From a1dc86ebd2f2eb6652c8be9311c16acccd1708f8 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Sun, 19 Jul 2015 00:29:14 +0200 Subject: hwmon: (lm70) add device tree support Allow the lm70 to be probed from a device tree. Signed-off-by: Rabin Vincent Signed-off-by: Guenter Roeck --- drivers/hwmon/lm70.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index 97204dce162d..9296e9daf774 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -37,6 +37,7 @@ #include #include #include +#include #define DRVNAME "lm70" @@ -130,11 +131,41 @@ ATTRIBUTE_GROUPS(lm70); /*----------------------------------------------------------------------*/ +#ifdef CONFIG_OF +static const struct of_device_id lm70_of_ids[] = { + { + .compatible = "ti,lm70", + .data = (void *) LM70_CHIP_LM70, + }, + { + .compatible = "ti,tmp121", + .data = (void *) LM70_CHIP_TMP121, + }, + { + .compatible = "ti,lm71", + .data = (void *) LM70_CHIP_LM71, + }, + { + .compatible = "ti,lm74", + .data = (void *) LM70_CHIP_LM74, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, lm70_of_ids); +#endif + static int lm70_probe(struct spi_device *spi) { - int chip = spi_get_device_id(spi)->driver_data; + const struct of_device_id *match; struct device *hwmon_dev; struct lm70 *p_lm70; + int chip; + + match = of_match_device(lm70_of_ids, &spi->dev); + if (match) + chip = (int)(uintptr_t)match->data; + else + chip = spi_get_device_id(spi)->driver_data; /* signaling is SPI_MODE_0 */ if (spi->mode & (SPI_CPOL | SPI_CPHA)) @@ -169,6 +200,7 @@ static struct spi_driver lm70_driver = { .driver = { .name = "lm70", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(lm70_of_ids), }, .id_table = lm70_ids, .probe = lm70_probe, -- cgit v1.2.3