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spi: tegra114: avoid reset call in atomic context

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This patch moves SPI controller reset out of spin lock.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sowjanya Komatineni 2019-04-04 17:14:03 -07:00 committed by Mark Brown
parent f3e182c33e
commit a026525d4e
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GPG Key ID: 24D68B725D5487D0
1 changed files with 5 additions and 4 deletions
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9
drivers/spi/spi-tegra114.c
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@ -967,11 +967,12 @@ static irqreturn_t handle_cpu_based_xfer(struct tegra_spi_data *tspi)
dev_err(tspi->dev, "CpuXfer 0x%08x:0x%08x\n",
tspi->command1_reg, tspi->dma_control_reg);
tegra_spi_flush_fifos(tspi);
complete(&tspi->xfer_completion);
spin_unlock_irqrestore(&tspi->lock, flags);
reset_control_assert(tspi->rst);
udelay(2);
reset_control_deassert(tspi->rst);
complete(&tspi->xfer_completion);
goto exit;
return IRQ_HANDLED;
}
if (tspi->cur_direction & DATA_DIR_RX)
@ -1040,11 +1041,11 @@ static irqreturn_t handle_dma_based_xfer(struct tegra_spi_data *tspi)
dev_err(tspi->dev, "DmaXfer 0x%08x:0x%08x\n",
tspi->command1_reg, tspi->dma_control_reg);
tegra_spi_flush_fifos(tspi);
complete(&tspi->xfer_completion);
spin_unlock_irqrestore(&tspi->lock, flags);
reset_control_assert(tspi->rst);
udelay(2);
reset_control_deassert(tspi->rst);
complete(&tspi->xfer_completion);
spin_unlock_irqrestore(&tspi->lock, flags);
return IRQ_HANDLED;
}