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Subject[PATCH V1 10/26] spi: tegra114: avoid reset call in atomic context
Date
Fixes: move SPI controller reset out of spin lock.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
drivers/spi/spi-tegra114.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 268a790a663e..5523936b21f5 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -976,11 +976,12 @@ static irqreturn_t handle_cpu_based_xfer(struct tegra_spi_data *tspi)
tspi->command1_reg, tspi->dma_control_reg);
tegra_spi_dump_regs(tspi);
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)
@@ -1050,11 +1051,11 @@ static irqreturn_t handle_dma_based_xfer(struct tegra_spi_data *tspi)
tspi->command1_reg, tspi->dma_control_reg);
tegra_spi_dump_regs(tspi);
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;
}

--
2.7.4
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