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spi: sprd: Fix the incorrect SPI register 

commit 5e9c5236b7 upstream.

The original code used an incorrect SPI register to initialize the SPI
controller in sprd_spi_init_hw(), thus fix it.

Fixes: e7d973a31c ("spi: sprd: Add SPI driver for Spreadtrum SC9860")
Signed-off-by: Huanpeng Xin <huanpeng.xin@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/b4f7f89ec0fdc595335687bfbd9f962213bc4a1d.1575443510.git.baolin.wang7@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huanpeng Xin 2019-12-04 15:13:59 +08:00 committed by Greg Kroah-Hartman
parent 2d657e3ac5
commit 98cb3486aa
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-sprd.c
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@ -674,7 +674,7 @@ static void sprd_spi_init_hw(struct sprd_spi *ss, struct spi_transfer *t)
u16 word_delay, interval;
u32 val;
val = readl_relaxed(ss->base + SPRD_SPI_CTL7);
val = readl_relaxed(ss->base + SPRD_SPI_CTL0);
val &= ~(SPRD_SPI_SCK_REV | SPRD_SPI_NG_TX | SPRD_SPI_NG_RX);
/* Set default chip selection, clock phase and clock polarity */
val |= ss->hw_mode & SPI_CPHA ? SPRD_SPI_NG_RX : SPRD_SPI_NG_TX;