From 83a6060c0cd07cafdf8baa08e26c602a06977a2c Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 5 Dec 2017 23:16:58 +0100 Subject: firmware: arm_scpi: improve struct sensor_value lo_val and hi_val together in this order are a little endian 64 bit value. Therefore we can simplify struct sensor_value and the code by defining it as a __le64 value and by using le64_to_cpu. Tested-by: Kevin Hilman Signed-off-by: Heiner Kallweit Signed-off-by: Sudeep Holla --- drivers/firmware/arm_scpi.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/firmware/arm_scpi.c b/drivers/firmware/arm_scpi.c index 63441e403f60..4447af482fe9 100644 --- a/drivers/firmware/arm_scpi.c +++ b/drivers/firmware/arm_scpi.c @@ -347,9 +347,8 @@ struct _scpi_sensor_info { }; struct sensor_value { - __le32 lo_val; - __le32 hi_val; -} __packed; + __le64 val; +}; struct dev_pstate_set { __le16 dev_id; @@ -777,11 +776,10 @@ static int scpi_sensor_get_value(u16 sensor, u64 *val) return ret; if (scpi_info->is_legacy) - /* only 32-bits supported, hi_val can be junk */ - *val = le32_to_cpu(buf.lo_val); + /* only 32-bits supported, upper 32 bits can be junk */ + *val = le32_to_cpup((__le32 *)&buf.val); else - *val = (u64)le32_to_cpu(buf.hi_val) << 32 | - le32_to_cpu(buf.lo_val); + *val = le64_to_cpu(buf.val); return 0; } -- cgit v1.2.3