[PATCH v12 10/11] thermal: intel: intel_soc_dts_iosf: Utilize for_each_set_clump8 macro

William Breathitt Gray
2019-03-25T06:25:07Z

Utilize for_each_set_clump8 macro, and the bitmap_set_value8 and
bitmap_get_value8 functions, where appropriate. In addition, remove the
now unnecessary temp_mask and temp_shift members of the
intel_soc_dts_sensor_entry structure.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
---
drivers/thermal/intel/intel_soc_dts_iosf.c | 29 +++++++++++++---------
drivers/thermal/intel/intel_soc_dts_iosf.h | 2 --
2 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.c b/drivers/thermal/intel/intel_soc_dts_iosf.c
index e0813dfaa278..832e74e5fbde 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.c
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.c
@@ -15,6 +15,7 @@

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

+#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
@@ -111,6 +112,7 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
{
int status;
u32 temp_out;
+ unsigned long update_ptps;
u32 out;
u32 store_ptps;
u32 store_ptmc;
@@ -129,8 +131,9 @@ static int update_trip_temp(struct intel_soc_dts_sensor_entry *dts,
if (status)
return status;

- out = (store_ptps & ~(0xFF << (thres_index * 8)));
- out |= (temp_out & 0xFF) << (thres_index * 8);
+ update_ptps = store_ptps;
+ bitmap_set_value8(&update_ptps, 32, temp_out & 0xFF, thres_index * 8);
+ out = update_ptps;
status = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
SOC_DTS_OFFSET_PTPS, out);
if (status)
@@ -232,6 +235,7 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
u32 out;
struct intel_soc_dts_sensor_entry *dts;
struct intel_soc_dts_sensors *sensors;
+ unsigned long temp_raw;

dts = tzd->devdata;
sensors = dts->sensors;
@@ -240,7 +244,8 @@ static int sys_get_curr_temp(struct thermal_zone_device *tzd,
if (status)
return status;

- out = (out & dts->temp_mask) >> dts->temp_shift;
+ temp_raw = out;
+ out = bitmap_get_value8(&temp_raw, 32, dts->id * 8);
out -= SOC_DTS_TJMAX_ENCODING;
*temp = sensors->tj_max - out * 1000;

@@ -290,10 +295,13 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
{
char name[10];
int trip_count = 0;
+ int writable_trip_count = 0;
int trip_mask = 0;
u32 store_ptps;
int ret;
- int i;
+ unsigned int i;
+ unsigned long trip;
+ unsigned long ptps;

/* Store status to restor on exit */
ret = iosf_mbi_read(BT_MBI_UNIT_PMC, MBI_REG_READ,
@@ -302,11 +310,10 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
goto err_ret;

dts->id = id;
- dts->temp_mask = 0x00FF << (id * 8);
- dts->temp_shift = id * 8;
if (notification_support) {
trip_count = min(SOC_MAX_DTS_TRIPS, trip_cnt);
- trip_mask = BIT(trip_count - read_only_trip_cnt) - 1;
+ writable_trip_count = trip_count - read_only_trip_cnt;
+ trip_mask = GENMASK(writable_trip_count - 1, 0);
}

/* Check if the writable trip we provide is not used by BIOS */
@@ -315,11 +322,9 @@ static int add_dts_thermal_zone(int id, struct intel_soc_dts_sensor_entry *dts,
if (ret)
trip_mask = 0;
else {
- for (i = 0; i < trip_count; ++i) {
- if (trip_mask & BIT(i))
- if (store_ptps & (0xff << (i * 8)))
- trip_mask &= ~BIT(i);
- }
+ ptps = store_ptps;
+ for_each_set_clump8(i, trip, &ptps, writable_trip_count * 8)
+ trip_mask &= ~BIT(i / 8);
}
dts->trip_mask = trip_mask;
dts->trip_count = trip_count;
diff --git a/drivers/thermal/intel/intel_soc_dts_iosf.h b/drivers/thermal/intel/intel_soc_dts_iosf.h
index 625e37bf93dc..d0362d7acdef 100644
--- a/drivers/thermal/intel/intel_soc_dts_iosf.h
+++ b/drivers/thermal/intel/intel_soc_dts_iosf.h
@@ -33,8 +33,6 @@ struct intel_soc_dts_sensors;

struct intel_soc_dts_sensor_entry {
int id;
- u32 temp_mask;
- u32 temp_shift;
u32 store_status;
u32 trip_mask;
u32 trip_count;
--
2.21.0