[PATCH 1/3] clk: exynos5433: Extend list of available AUD_PLL output frequencies
From: s.nawrocki@samsung.com (Sylwester Nawrocki)
Date: 2018-02-07 13:04:29
Also in:
linux-clk, linux-samsung-soc, lkml
On 02/07/2018 12:24 PM, Chanwoo Choi wrote:
Could you share your equation? because your result is a little bit different of my result. - my equation : ((mdiv + kdiv/65535) x 24MHz) / (pdiv x POWER(2,sdiv))
It resembles the code from samsung_pll36xx_recalc_rate(): (24 * 10^6 * (M * 2^16 + K)) / (P * 2^S) / 2^16 and a more accurate one ROUNDDOWN(ROUNDDOWN(24 * 10^6 * (M * 2^16 + K), 0) / ROUNDDOWN(P * 2^S, 0) / 2^16, 0) Shouldn't you substitute 65535 with 65536? -- Regards, Sylwester