diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2017-12-05 23:16:52 +0100 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2018-02-23 16:12:37 +0100 |
| commit | a963d7c5264eaa544837ac8182a9eea55007a669 (patch) | |
| tree | fa89dfecfa5e2b3f25a74080f40777e256f3a83d /drivers/firmware/arm_scpi.c | |
| parent | firmware: arm_scpi: make scpi_probe completely device-managed (diff) | |
| download | linux-a963d7c5264eaa544837ac8182a9eea55007a669.tar.xz linux-a963d7c5264eaa544837ac8182a9eea55007a669.zip | |
firmware: arm_scpi: improve struct dvfs_info to make code better readable
Making the header subfields members of struct dvfs_info allows to make
the code better readable and avoids some macro magic.
In addition remove a useless statement using info->latency.
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scpi.c')
| -rw-r--r-- | drivers/firmware/arm_scpi.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/firmware/arm_scpi.c b/drivers/firmware/arm_scpi.c index a6f6039ee3f9..9eeb53b766e0 100644 --- a/drivers/firmware/arm_scpi.c +++ b/drivers/firmware/arm_scpi.c @@ -72,8 +72,6 @@ #define MAX_DVFS_DOMAINS 8 #define MAX_DVFS_OPPS 16 -#define DVFS_LATENCY(hdr) (le32_to_cpu(hdr) >> 16) -#define DVFS_OPP_COUNT(hdr) ((le32_to_cpu(hdr) >> 8) & 0xff) #define PROTOCOL_REV_MINOR_BITS 16 #define PROTOCOL_REV_MINOR_MASK ((1U << PROTOCOL_REV_MINOR_BITS) - 1) @@ -328,7 +326,9 @@ struct legacy_clk_set_value { } __packed; struct dvfs_info { - __le32 header; + u8 domain; + u8 opp_count; + __le16 latency; struct { __le32 freq; __le32 m_volt; @@ -665,8 +665,8 @@ static struct scpi_dvfs_info *scpi_dvfs_get_info(u8 domain) if (!info) return ERR_PTR(-ENOMEM); - info->count = DVFS_OPP_COUNT(buf.header); - info->latency = DVFS_LATENCY(buf.header) * 1000; /* uS to nS */ + info->count = buf.opp_count; + info->latency = le16_to_cpu(buf.latency) * 1000; /* uS to nS */ info->opps = kcalloc(info->count, sizeof(*opp), GFP_KERNEL); if (!info->opps) { @@ -713,9 +713,6 @@ static int scpi_dvfs_get_transition_latency(struct device *dev) if (IS_ERR(info)) return PTR_ERR(info); - if (!info->latency) - return 0; - return info->latency; } |