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spi: spi-msm-geni: Propagate missing SPI Slave change from 4.14 to 5.4

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Propagate following change from 4.14 to 5.4 for SPI SLAVE driver.
'commit 3c7e85615a1d64 ("spi: spi-geni-qcom: Restrict SPI
responder to transfer mode 1")'.

Change-Id: I6170a0e021cc0a09a2bc9ee26dfc504ee85bbf91
Signed-off-by: Ashish Kori <akori@codeaurora.org>
This commit is contained in:
Ashish Kori 2020-08-26 10:24:21 +05:30 • committed by Aniket Randive
commit 8b7a67cfa7
1 changed files with 8 additions and 0 deletions
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8
drivers/spi/spi-msm-geni.c
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@ -336,6 +336,14 @@ static int setup_fifo_params(struct spi_device *spi_slv,
cpha |= CPHA;
}
/* SPI slave supports only mode 1, log unsuppoted mode and exit */
if (spi->slave && !(cpol == 0 && cpha == 1)) {
GENI_SE_DBG(mas->ipc, false, mas->dev,
"%s: Unsupported SPI Slave mode cpol %d cpha %d\n",
__func__, cpol, cpha);
return -EINVAL;
}
if (spi_slv->mode & SPI_CS_HIGH)
demux_output_inv |= BIT(spi_slv->chip_select);