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drivers/fpga: ice40: use k_usleep instead of busy loop in SPI mode

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The 200ns reset time are a minimum value, there is no need to enforce
precise timing (and thus manual per-device calibration) here.

Signed-off-by: Armin Brauns <armin.brauns@embedded-solutions.at>
This commit is contained in:
Armin Brauns 2023-01-24 09:55:22 +01:00 committed by Carles Cufí
parent 8aec9dd552
commit 2f6dff59c5
1 changed files with 1 additions and 1 deletions
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2
drivers/fpga/fpga_ice40.c
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@ -365,7 +365,7 @@ static int fpga_ice40_load_spi(const struct device *dev, uint32_t *image_ptr, ui
/* Wait a minimum of 200ns */
LOG_DBG("Delay %u ns (%u us)", config->creset_delay_ns, delay_us);
fpga_ice40_delay(2 * config->mhz_delay_count * delay_us);
k_usleep(delay_us);
__ASSERT(gpio_pin_get_dt(&config->cdone) == 0, "CDONE was not high");