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spi: rockchip: Preset SPI slave controller configuration

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Ensure that cs io is in the input state in initial progress.

Change-Id: I808994ec14e3f4ab1c580f2f07e3e41b444bcc2e
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2023-11-21 10:32:19 +08:00
committed by Tao Huang
parent 98006c7092
commit 2cda47f66a
1 changed files with 2 additions and 0 deletions
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2
drivers/spi/spi-rockchip.c
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@@ -909,6 +909,8 @@ static int rockchip_spi_setup(struct spi_device *spi)
cr0 |= BIT(spi->chip_select) << CR0_SOI_OFFSET;
else if (spi->chip_select <= 1)
cr0 &= ~(BIT(spi->chip_select) << CR0_SOI_OFFSET);
if (spi_controller_is_slave(spi->controller))
cr0 |= CR0_OPM_SLAVE << CR0_OPM_OFFSET;
writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0);