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spi: davinci: Initialize dspi->done before any possible use of it 

On SOC with multiple cpu (like omal l138) it is possible that spi
periferic is already initialized when this module is loaded and so
it is possible to recieve interrupt when the modules is not fully
initialized.

this patch initialize dspi->done before refister the interrupt
handler that use it

Signed-off-by: Michele Dionisio <michele.dionisio@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Michele Dionisio 2017-12-12 11:36:59 +01:00 committed by Mark Brown
parent 4fbd8d194f
commit 87248dc792
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
drivers/spi/spi-davinci.c
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@ -945,6 +945,8 @@ static int davinci_spi_probe(struct platform_device *pdev)
goto free_master;
}
init_completion(&dspi->done);
ret = platform_get_irq(pdev, 0);
if (ret == 0)
ret = -EINVAL;
@ -1021,8 +1023,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
dspi->get_rx = davinci_spi_rx_buf_u8;
dspi->get_tx = davinci_spi_tx_buf_u8;
init_completion(&dspi->done);
/* Reset In/OUT SPI module */
iowrite32(0, dspi->base + SPIGCR0);
udelay(100);