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spi: mpc8xxx: Rename variable

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The variable "char_size" holds the number of bits to be transferred in
the current loop iteration. A better name would be "xfer_bitlen", which
we rename this variable to.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Mario Six
2019-04-29 01:58:48 +05:30
committed by Jagan Teki
parent 8dea61da19
commit 5ccfb8a995
1 changed files with 4 additions and 4 deletions
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8
drivers/spi/mpc8xxx_spi.c
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@@ -114,10 +114,10 @@ int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din,
while (num_blks--) { while (num_blks--) {
int tm; int tm;
u32 tmpdout = 0; u32 tmpdout = 0;
uchar char_size = (bitlen >= 32 ? 32 : bitlen); uchar xfer_bitlen = (bitlen >= 32 ? 32 : bitlen);
/* Shift data so it's msb-justified */ /* Shift data so it's msb-justified */
tmpdout = *(u32 *)dout >> (32 - char_size); tmpdout = *(u32 *)dout >> (32 - xfer_bitlen);
/* The LEN field of the SPMODE register is set as follows: /* The LEN field of the SPMODE register is set as follows:
* *
@@ -165,8 +165,8 @@ int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din,
tmpdin = in_be32(&spi->rx); tmpdin = in_be32(&spi->rx);
setbits_be32(&spi->event, SPI_EV_NE); setbits_be32(&spi->event, SPI_EV_NE);
*(u32 *)din = (tmpdin << (32 - char_size)); *(u32 *)din = (tmpdin << (32 - xfer_bitlen));
if (char_size == 32) { if (xfer_bitlen == 32) {
/* Advance output buffer by 32 bits */ /* Advance output buffer by 32 bits */
din += 4; din += 4;
} }