mirror of https://gitee.com/openkylin/linux.git
spi/s3c64xx: Enable GPIO /CS prior to starting hardware
To help with bisection of future refactoring to share more of the code for handling a spi_message pull the enabling of GPIO based /CS prior to all the hardware setup for starting a transfer. Signed-off-by: Mark Brown <broonie@linaro.org>
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@ -906,6 +906,9 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
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s3c64xx_spi_config(sdd);
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s3c64xx_spi_config(sdd);
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}
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}
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/* Slave Select */
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enable_cs(sdd, spi);
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/* Polling method for xfers not bigger than FIFO capacity */
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/* Polling method for xfers not bigger than FIFO capacity */
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use_dma = 0;
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use_dma = 0;
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if (!is_polling(sdd) &&
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if (!is_polling(sdd) &&
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@ -921,9 +924,6 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
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enable_datapath(sdd, spi, xfer, use_dma);
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enable_datapath(sdd, spi, xfer, use_dma);
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/* Slave Select */
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enable_cs(sdd, spi);
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/* Start the signals */
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/* Start the signals */
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writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
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writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
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