wiseconnect: Disable high temperature security

Wiseconnect allows to use an alternative clock if the temperature during
the start up is too high. However:
  - this feature relies on ADC and we don't want to import it for now
  - this kind of magic feature should be exposed to the user rather than
    hidden in the HAL (especially since use can also use ADC hardware)

Upstream-status: Inappropriate [Upstream wants to keep high temperature security]
Signed-off-by: Jérôme Pouiller <[email protected]>

Author: jerome-pouiller

wiseconnect/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_ipmu.c

@@ -34,17 +34,13 @@
 #include "rsi_ipmu.h"
 #include "rsi_pll.h"
 #include "rsi_ulpss_clk.h"
-#include "sl_si91x_bjt_temperature_sensor.h"
 
 /**
  * Defines
  */
 #define SYSTEM_CLK_VAL_20MHZ ((uint32_t)(20000000)) // macro for 20MHz
 #define SYSTEM_CLK_VAL_MHZ   ((uint32_t)(32000000)) // macro for 32MHz doubler
 
-extern adc_config_t sl_bjt_config;
-extern adc_ch_config_t sl_bjt_channel_config;
-
 /**
  * @fn          void RSI_IPMU_UpdateIpmuCalibData_efuse(const efuse_ipmu_t *ipmu_calib_data)
  * @brief       This function prepares the data from the ipmu calib structure content and writes to each specific register
@@ -463,14 +459,8 @@ void RSI_Configure_Ipmu_Mode(void)
   /*configures chip supply mode to HP-LDO */
   configure_ipmu_mode(HP_LDO_MODE);
 #else
-  /* Read the temperature; if it is within the range of 0 to 60 degrees, switch the chip supply to SCDC mode. Otherwise, maintain the default LDO supply mode.*/
-  sl_si91x_bjt_temperature_sensor_init(sl_bjt_channel_config, sl_bjt_config);
-  sl_si91x_bjt_temperature_sensor_read_data(&temperature);
-  sl_si91x_bjt_temperature_sensor_deinit(sl_bjt_config);
-  if ((temperature > 0) && (temperature <= 60)) {
-    /*configures chip supply mode to SCDC */
-    configure_ipmu_mode(SCDC_MODE);
-  }
+  (void)temperature;
+  configure_ipmu_mode(SCDC_MODE);
 #endif
 }
 void update_efuse_system_configs(int data, uint32_t config_ptr[])