[pddf]: Adding PDDF common framework enhancements. (sonic-net#12863)

- Consolidating multiple read functions in a PSU driver on the basis of byte, word or block read,
- Enhancing PDDF parsing script support for CPU and PCH temperature reading,
- Adding missing methods in PDDF common APIs

Why I did it
- PSU driver changes are to optimize the code and increase the code coverage
- PDDF parser script enhancements to accommodate the CPU and PCH temp reading using hwmon device path
- Some of the new APIs were missing from the PDDF common platform classes

How I did it
Added code changes and verified them on AS7816 adn AS7726 platforms.

platform/pddf/i2c/modules/include/pddf_psu_api.h

@@ -24,18 +24,8 @@ extern void get_psu_duplicate_sysfs(int idx, char *str);
 extern ssize_t psu_show_default(struct device *dev, struct device_attribute *da, char *buf);
 extern ssize_t psu_store_default(struct device *dev, struct device_attribute *da, const char *buf, size_t count);
 
-extern int sonic_i2c_get_psu_present_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_power_good_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_model_name_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_mfr_id_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_serial_num_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_fan_dir_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_v_out_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_i_out_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_p_out_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_fan1_speed_rpm_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_temp1_input_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_v_in_default(void *client, PSU_DATA_ATTR *adata, void *data);
-extern int sonic_i2c_get_psu_i_in_default(void *client, PSU_DATA_ATTR *adata, void *data);
+extern int sonic_i2c_get_psu_byte_default(void *client, PSU_DATA_ATTR *adata, void *data);
+extern int sonic_i2c_get_psu_block_default(void *client, PSU_DATA_ATTR *adata, void *data);
+extern int sonic_i2c_get_psu_word_default(void *client, PSU_DATA_ATTR *adata, void *data);
 
 #endif

platform/pddf/i2c/modules/include/pddf_psu_driver.h

@@ -27,12 +27,17 @@ enum psu_sysfs_attributes {
 	PSU_SERIAL_NUM,
 	PSU_FAN_DIR,
     PSU_V_OUT,
+    PSU_V_OUT_MIN,
+    PSU_V_OUT_MAX,
     PSU_I_OUT,
     PSU_P_OUT, /* This is in micro watts to comply with lm-sensors */
+    PSU_P_OUT_MAX,
     PSU_FAN1_SPEED,
     PSU_TEMP1_INPUT,
+    PSU_TEMP1_HIGH_THRESHOLD,
     PSU_V_IN,
     PSU_I_IN,
+	PSU_P_IN,
 	PSU_ATTR_MAX
 };