[PATCH v2] spi/bcm63xx: Fix checkpatch warnings
Joe Perches
joe at perches.com
Mon Jun 19 13:07:07 PDT 2017
On Mon, 2017-06-19 at 12:42 -0700, Joe Perches wrote:
> On Mon, 2017-06-19 at 23:47 +0530, Aravind Thokala wrote:
> > This patch fixes the checkpatch.pl warnings on the driver
> > file.
> []
> > diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
>
> []
> > @@ -191,7 +191,7 @@ static inline void bcm_spi_writew(struct bcm63xx_spi *bs,
> > #endif
> > }
> >
> > -static const unsigned bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = {
> > +static const unsigned int bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = {
> > { 20000000, SPI_CLK_20MHZ },
> > { 12500000, SPI_CLK_12_50MHZ },
> > { 6250000, SPI_CLK_6_250MHZ },
>
> It's probably better to change this array into a struct
> to make the indexing more obvious.
>
> Also the SPI_CLK_MASK uses are a bit obscure.
>
> Perhaps:
> ---
> diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
[]
> -static const unsigned bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = {
> +static const struct {
> + unsigned int speed;
> + unsigned int index;
Maybe index should be u8 as the one use
it's assigned to is also u8
> +} bcm63xx_spi_freq_table[] = {
> { 20000000, SPI_CLK_20MHZ },
> { 12500000, SPI_CLK_12_50MHZ },
> { 6250000, SPI_CLK_6_250MHZ },
> @@ -213,8 +216,8 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi,
>
> /* Find the closest clock configuration */
> for (i = 0; i < SPI_CLK_MASK; i++) {
> - if (t->speed_hz >= bcm63xx_spi_freq_table[i][0]) {
> - clk_cfg = bcm63xx_spi_freq_table[i][1];
> + if (t->speed_hz >= bcm63xx_spi_freq_table[i].speed) {
> + clk_cfg = bcm63xx_spi_freq_table[i].index;
> break;
> }
> }
>
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