Merge pull request #5987 from dhalbert/fix-rp2040-spi-freq-init

dhalbert · web-flow · commit 5afd7d420d50 · 2022-02-07T18:07:07.000-05:00
RP2040: set initial SPI frequency
diff --git a/ports/raspberrypi/common-hal/busio/SPI.c b/ports/raspberrypi/common-hal/busio/SPI.c
@@ -90,7 +90,8 @@ void common_hal_busio_spi_construct(busio_spi_obj_t *self,
         mp_raise_ValueError(translate("SPI peripheral in use"));
     }
 
-    spi_init(self->peripheral, 250000);
+    self->target_frequency = 250000;
+    self->real_frequency = spi_init(self->peripheral, self->target_frequency);
 
     gpio_set_function(clock->number, GPIO_FUNC_SPI);
     claim_pin(clock);

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,8 @@ void common_hal_busio_spi_construct(busio_spi_obj_t *self,`
`90`	`90`	`mp_raise_ValueError(translate("SPI peripheral in use"));`
`91`	`91`	`}`
`92`	`92`
`93`		`- spi_init(self->peripheral, 250000);`
	`93`	`+ self->target_frequency = 250000;`
	`94`	`+ self->real_frequency = spi_init(self->peripheral, self->target_frequency);`
`94`	`95`
`95`	`96`	`gpio_set_function(clock->number, GPIO_FUNC_SPI);`
`96`	`97`	`claim_pin(clock);`