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xtensa/esp32: Fix ESP32 SPI driver issues

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1. reset SPI hardware when deinitializing
2. reset SPI priavte configuration data when deinitializing
3. free interrupt when deinitializing
This commit is contained in:
Dong Heng 2021-01-14 17:59:59 +08:00 committed by Abdelatif Guettouche
parent b6fbcb649c
commit eb2937003b
2 changed files with 21 additions and 0 deletions
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7
arch/xtensa/src/esp32/esp32_spi.c
View File

@ -1386,7 +1386,14 @@ static void esp32_spi_deinit(FAR struct spi_dev_s *dev)
modifyreg32(DPORT_PERIP_CLK_EN_REG, priv->config->dma_clk_bit, 0);
}
modifyreg32(DPORT_PERIP_RST_EN_REG, 0, priv->config->clk_bit);
modifyreg32(DPORT_PERIP_CLK_EN_REG, priv->config->clk_bit, 0);
priv->frequency = 0;
priv->actual = 0;
priv->mode = SPIDEV_MODE0;
priv->nbits = 0;
priv->dma_chan = 0;
}
/****************************************************************************

14
arch/xtensa/src/esp32/esp32_spi_slave.c
View File

@ -963,7 +963,17 @@ static void esp32_spislv_deinit(FAR struct spi_sctrlr_s *dev)
esp32_gpioirqdisable(ESP32_PIN2IRQ(priv->config->cs_pin));
esp32_spi_reset_regbits(priv, SPI_SLAVE_OFFSET, SPI_INT_EN_M);
modifyreg32(DPORT_PERIP_RST_EN_REG, 0, priv->config->clk_bit);
modifyreg32(DPORT_PERIP_CLK_EN_REG, priv->config->clk_bit, 0);
priv->mode = SPIDEV_MODE0;
priv->nbits = 0;
priv->txlen = 0;
priv->rxlen = 0;
priv->process = false;
priv->txen = false;
priv->dma_chan = false;
}
/****************************************************************************
@ -1353,6 +1363,10 @@ int esp32_spislv_sctrlr_uninitialize(FAR struct spi_sctrlr_s *sctrlr)
}
up_disable_irq(priv->cpuint);
esp32_detach_peripheral(priv->config->cpu,
priv->config->periph,
priv->cpuint);
esp32_free_cpuint(priv->cpuint);
esp32_spislv_deinit(sctrlr);