[U-Boot] Question about compile warnings of exynos clock

Hi,

I found below compile warnings,

CC arch/arm/cpu/armv7/exynos/clock.o arch/arm/cpu/armv7/exynos/clock.c: In function ‘clock_get_periph_rate’: arch/arm/cpu/armv7/exynos/clock.c:265:47: warning: array subscript is above array bounds [-Warray-bounds] struct clk_bit_info *bit_info = &clk_bit_info[peripheral]; ^ arch/arm/cpu/armv7/exynos/clock.c:265:47: warning: array subscript is above array bounds [-Warray-bounds]

...

static unsigned long exynos5_get_periph_rate(int peripheral) { struct clk_bit_info *bit_info = &clk_bit_info[peripheral];

This can access out of bounds of clk_bit_info[] array from exynos5_get_periph_rate(). The peripheral value comes from enum periph_id but it gets out of count clk_bit_info[] array.

So, i don't think exynos5_get_periph_rate is working correctly. Currently, exynos5_get_periph_rate is used by clock_get_periph_rate only from get_pwm_clk.

Is it ongoing to work for generic api to get the clk freq? If not, let's remove exynos5_get_periph_rate and clock_get_periph_rate.

Thanks.