pbio/drv/core: Drop ioport quirk that delayed boot by 500ms.

This workaround is no longer needed after recent fixes to the LEGO UART protocol handler. See pybricks/support#747 for rationale.

Author: laurensvalk

lib/pbio/drv/core.c

@@ -73,25 +73,12 @@ void pbdrv_init(void) {
     __asm volatile ("cpsie i" : : : "memory");
     #endif
 
-    // Some hubs turn on power to the I/O ports in the bootloader. This causes
-    // us to miss the initial synchronization window, so we lose more time.
-    // This is fixed by power cycling them here and allowing some reset time.
-    #if PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE
-    pbdrv_ioport_enable_vcc(false);
-    uint32_t ioport_reset_time = pbdrv_clock_get_ms();
-    #endif
-
     // Wait for all async pbdrv drivers to initialize before starting
     // higher level system processes.
     while (pbio_busy_count_busy()) {
         pbio_os_run_processes_once();
     }
 
-    #if PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE
-    while (pbdrv_clock_get_ms() - ioport_reset_time < 500) {
-        pbio_os_run_processes_once();
-    }
-    #endif
     pbdrv_ioport_enable_vcc(true);
 }
 

lib/pbio/platform/city_hub/pbdrvconfig.h

@@ -45,7 +45,6 @@
 #define PBDRV_CONFIG_IOPORT                         (1)
 #define PBDRV_CONFIG_IOPORT_HAS_ADC                 (0)
 #define PBDRV_CONFIG_IOPORT_NUM_DEV                 (2)
-#define PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE   (1)
 
 #define PBDRV_CONFIG_LED                            (1)
 #define PBDRV_CONFIG_LED_NUM_DEV                    (1)

lib/pbio/platform/essential_hub/pbdrvconfig.h

@@ -69,7 +69,6 @@
 #define PBDRV_CONFIG_IOPORT                         (1)
 #define PBDRV_CONFIG_IOPORT_HAS_ADC                 (0)
 #define PBDRV_CONFIG_IOPORT_NUM_DEV                 (2)
-#define PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE   (0)
 
 #define PBDRV_CONFIG_LED                            (1)
 #define PBDRV_CONFIG_LED_NUM_DEV                    (2)

lib/pbio/platform/move_hub/pbdrvconfig.h

@@ -44,7 +44,6 @@
 #define PBDRV_CONFIG_IOPORT                         (1)
 #define PBDRV_CONFIG_IOPORT_HAS_ADC                 (0)
 #define PBDRV_CONFIG_IOPORT_NUM_DEV                 (4)
-#define PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE   (0)
 
 #define PBDRV_CONFIG_LED                            (1)
 #define PBDRV_CONFIG_LED_NUM_DEV                    (1)

lib/pbio/platform/prime_hub/pbdrvconfig.h

@@ -70,7 +70,6 @@
 #define PBDRV_CONFIG_IOPORT                         (1)
 #define PBDRV_CONFIG_IOPORT_HAS_ADC                 (0)
 #define PBDRV_CONFIG_IOPORT_NUM_DEV                 (6)
-#define PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE   (0)
 
 #define PBDRV_CONFIG_LED                            (1)
 #define PBDRV_CONFIG_LED_NUM_DEV                    (5)

lib/pbio/platform/technic_hub/pbdrvconfig.h

@@ -55,7 +55,6 @@
 #define PBDRV_CONFIG_IOPORT                         (1)
 #define PBDRV_CONFIG_IOPORT_HAS_ADC                 (0)
 #define PBDRV_CONFIG_IOPORT_NUM_DEV                 (4)
-#define PBDRV_CONFIG_IOPORT_PUP_QUIRK_POWER_CYCLE   (1)
 
 #define PBDRV_CONFIG_LED                            (1)
 #define PBDRV_CONFIG_LED_NUM_DEV                    (1)