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spi: fsl-spi: Change mspi_apply_cpu_mode_quirks() to void

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mspi_apply_cpu_mode_quirks() always returns the passed bits_per_word
unmodified.

Make it return void, then don't check bits_per_word anymore on
return as it doesn't change.

bits_per_word is already checked by __spi_validate() so no risk to
have bits_per_word higher than 32.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/3142a7c40af12a160f4e134764f2c34da3d8e1e2.1680371809.git.christophe.leroy@csgroup.eu
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Christophe Leroy
2023-04-01 19:59:49 +02:00
committed by Mark Brown
parent fc96ec826b
commit 99aebb3c1b
1 changed files with 6 additions and 14 deletions
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20
drivers/spi/spi-fsl-spi.c
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@@ -145,10 +145,10 @@ static void fsl_spi_grlib_set_shifts(u32 *rx_shift, u32 *tx_shift,
}
}
static int mspi_apply_cpu_mode_quirks(struct spi_mpc8xxx_cs *cs,
struct spi_device *spi,
struct mpc8xxx_spi *mpc8xxx_spi,
int bits_per_word)
static void mspi_apply_cpu_mode_quirks(struct spi_mpc8xxx_cs *cs,
struct spi_device *spi,
struct mpc8xxx_spi *mpc8xxx_spi,
int bits_per_word)
{
cs->rx_shift = 0;
cs->tx_shift = 0;
@@ -161,8 +161,7 @@ static int mspi_apply_cpu_mode_quirks(struct spi_mpc8xxx_cs *cs,
} else if (bits_per_word <= 32) {
cs->get_rx = mpc8xxx_spi_rx_buf_u32;
cs->get_tx = mpc8xxx_spi_tx_buf_u32;
} else
return -EINVAL;
}
if (mpc8xxx_spi->set_shifts)
mpc8xxx_spi->set_shifts(&cs->rx_shift, &cs->tx_shift,
@@ -173,8 +172,6 @@ static int mspi_apply_cpu_mode_quirks(struct spi_mpc8xxx_cs *cs,
mpc8xxx_spi->tx_shift = cs->tx_shift;
mpc8xxx_spi->get_rx = cs->get_rx;
mpc8xxx_spi->get_tx = cs->get_tx;
return bits_per_word;
}
static int fsl_spi_setup_transfer(struct spi_device *spi,
@@ -201,12 +198,7 @@ static int fsl_spi_setup_transfer(struct spi_device *spi,
hz = spi->max_speed_hz;
if (!(mpc8xxx_spi->flags & SPI_CPM_MODE))
bits_per_word = mspi_apply_cpu_mode_quirks(cs, spi,
mpc8xxx_spi,
bits_per_word);
if (bits_per_word < 0)
return bits_per_word;
mspi_apply_cpu_mode_quirks(cs, spi, mpc8xxx_spi, bits_per_word);
if (bits_per_word == 32)
bits_per_word = 0;