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rockchip: clk: rk3399: change extract_bits to bitfield_extract

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The RK3399 clk driver still has a left-over use of extract_bits, which
can be replaced by using bitfield_extract from include/bitfield.h.
This rewrites the invocation to use the shared function.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Philipp Tomsich 2017-11-22 19:45:04 +01:00
parent 337bbb6297
commit a8ee98df18
1 changed files with 2 additions and 6 deletions
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8
drivers/clk/rockchip/clk_rk3399.c
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@ -569,11 +569,6 @@ static const struct spi_clkreg spi_clkregs[] = {
.sel_shift = CLK_SPI5_PLL_SEL_SHIFT, },
};
static inline u32 extract_bits(u32 val, unsigned width, unsigned shift)
{
return (val >> shift) & ((1 << width) - 1);
}
static ulong rk3399_spi_get_clk(struct rk3399_cru *cru, ulong clk_id)
{
const struct spi_clkreg *spiclk = NULL;
@ -590,7 +585,8 @@ static ulong rk3399_spi_get_clk(struct rk3399_cru *cru, ulong clk_id)
}
val = readl(&cru->clksel_con[spiclk->reg]);
div = extract_bits(val, CLK_SPI_PLL_DIV_CON_WIDTH, spiclk->div_shift);
div = bitfield_extract(val, spiclk->div_shift,
CLK_SPI_PLL_DIV_CON_WIDTH);
return DIV_TO_RATE(GPLL_HZ, div);
}