hwmon: (lm75) Add new fields into lm75_params_

The new fields are included to prepare the driver for next patch. The
fields are:

* *resolutions: Stores all the supported resolutions by the device.
* num_sample_times: Stores the number of possible sample times.
* *sample_times: Stores all the possible sample times to be set.
* sample_set_masks: The set_masks for the possible sample times
* sample_clr_mask: Clear mask to set the default sample time.

Signed-off-by: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Link: https://lore.kernel.org/r/20190808080246.8371-4-iker.perez@codethink.co.uk
[groeck: Minor structure documentation fixes]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 4acf4a7..34f90ea 100644 (file)
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -61,15 +61,34 @@ enum lm75_type {            /* keep sorted in alphabetical order */
  * @resolution_limits: Limit register resolution. Optional. Should be set if
  *                     the resolution of limit registers does not match the
  *                     resolution of the temperature register.
- * default_sample_time:        Sample time to be set by default.
+ * @resolutions:       List of resolutions associated with sample times.
+ *                     Optional. Should be set if num_sample_times is larger
+ *                     than 1, and if the resolution changes with sample times.
+ *                     If set, number of entries must match num_sample_times.
+ * @default_sample_time:Sample time to be set by default.
+ * @num_sample_times:  Number of possible sample times to be set. Optional.
+ *                     Should be set if the number of sample times is larger
+ *                     than one.
+ * @sample_times:      All the possible sample times to be set. Mandatory if
+ *                     num_sample_times is larger than 1. If set, number of
+ *                     entries must match num_sample_times.
+ * @sample_set_masks:  All the set_masks for the possible sample times.
+ *                     Mandatory if num_sample_times is larger than 1.
+ *                     If set, number of entries must match num_sample_times.
+ * @sample_clr_mask:   Clear mask used to set the sample time.
  */
 
 struct lm75_params {
-       u8              set_mask;
-       u8              clr_mask;
-       u8              default_resolution;
-       u8              resolution_limits;
-       unsigned int    default_sample_time;
+       u8                      set_mask;
+       u8                      clr_mask;
+       u8                      default_resolution;
+       u8                      resolution_limits;
+       const u8                *resolutions;
+       unsigned int            default_sample_time;
+       u8                      num_sample_times;
+       const unsigned int      *sample_times;
+       const u8                *sample_set_masks;
+       u8                      sample_clr_mask;
 };
 
 /* Addresses scanned */
@@ -221,7 +240,14 @@ static const struct lm75_params device_params[] = {
        [tmp75b] = { /* not one-shot mode, Conversion rate 37Hz */
                .clr_mask = 1 << 7 | 3 << 5,
                .default_resolution = 12,
+               .sample_set_masks = (u8 []){ 0 << 5, 1 << 5, 2 << 5,
+                       3 << 5 },
+               .sample_clr_mask = 3 << 5,
                .default_sample_time = MSEC_PER_SEC / 37,
+               .sample_times = (unsigned int []){ MSEC_PER_SEC / 37,
+                       MSEC_PER_SEC / 18,
+                       MSEC_PER_SEC / 9, MSEC_PER_SEC / 4 },
+               .num_sample_times = 4,
        },
        [tmp75c] = {
                .clr_mask = 1 << 5,     /*not one-shot mode*/