iio: temperature: max31856: Use get_unaligned_beXX() (92b7d5b7) · Commits · 戴 / test

drivers/iio/temperature/max31856.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -14,6 +14,7 @@
		#include <linux/iio/iio.h>
		#include <linux/iio/sysfs.h>
		#include <linux/util_macros.h>
		#include <asm/unaligned.h>
		#include <dt-bindings/iio/temperature/thermocouple.h>
		/*
		* The MSB of the register value determines whether the following byte will
		@@ -168,7 +169,7 @@ static int max31856_thermocouple_read(struct max31856_data *data,
		if (ret)
		return ret;
		/* Skip last 5 dead bits of LTCBL */
		*val = (reg_val[0] << 16 \| reg_val[1] << 8 \| reg_val[2]) >> 5;
		*val = get_unaligned_be24(&reg_val[0]) >> 5;
		/* Check 7th bit of LTCBH reg. value for sign*/
		if (reg_val[0] & 0x80)
		*val -= 0x80000;
		@@ -185,7 +186,7 @@ static int max31856_thermocouple_read(struct max31856_data *data,
		/* Get Cold Junction Temp. offset register value */
		offset_cjto = reg_val[0];
		/* Get CJTH and CJTL value and skip last 2 dead bits of CJTL */
		*val = (reg_val[1] << 8 \| reg_val[2]) >> 2;
		*val = get_unaligned_be16(&reg_val[1]) >> 2;
		/* As per datasheet add offset into CJTH and CJTL */
		*val += offset_cjto;
		/* Check 7th bit of CJTH reg. value for sign */