diff options
Diffstat (limited to 'drivers/clk/zynqmp/pll.c')
| -rw-r--r-- | drivers/clk/zynqmp/pll.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/clk/zynqmp/pll.c b/drivers/clk/zynqmp/pll.c index 7411a7fd50ac..630a3936c97c 100644 --- a/drivers/clk/zynqmp/pll.c +++ b/drivers/clk/zynqmp/pll.c @@ -98,29 +98,29 @@ static inline void zynqmp_pll_set_mode(struct clk_hw *hw, bool on) * * Return: Frequency closest to @rate the hardware can generate */ -static long zynqmp_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int zynqmp_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { u32 fbdiv; u32 mult, div; /* Let rate fall inside the range PS_PLL_VCO_MIN ~ PS_PLL_VCO_MAX */ - if (rate > PS_PLL_VCO_MAX) { - div = DIV_ROUND_UP(rate, PS_PLL_VCO_MAX); - rate = rate / div; + if (req->rate > PS_PLL_VCO_MAX) { + div = DIV_ROUND_UP(req->rate, PS_PLL_VCO_MAX); + req->rate = req->rate / div; } - if (rate < PS_PLL_VCO_MIN) { - mult = DIV_ROUND_UP(PS_PLL_VCO_MIN, rate); - rate = rate * mult; + if (req->rate < PS_PLL_VCO_MIN) { + mult = DIV_ROUND_UP(PS_PLL_VCO_MIN, req->rate); + req->rate = req->rate * mult; } - fbdiv = DIV_ROUND_CLOSEST(rate, *prate); + fbdiv = DIV_ROUND_CLOSEST(req->rate, req->best_parent_rate); if (fbdiv < PLL_FBDIV_MIN || fbdiv > PLL_FBDIV_MAX) { fbdiv = clamp_t(u32, fbdiv, PLL_FBDIV_MIN, PLL_FBDIV_MAX); - rate = *prate * fbdiv; + req->rate = req->best_parent_rate * fbdiv; } - return rate; + return 0; } /** @@ -294,7 +294,7 @@ static const struct clk_ops zynqmp_pll_ops = { .enable = zynqmp_pll_enable, .disable = zynqmp_pll_disable, .is_enabled = zynqmp_pll_is_enabled, - .round_rate = zynqmp_pll_round_rate, + .determine_rate = zynqmp_pll_determine_rate, .recalc_rate = zynqmp_pll_recalc_rate, .set_rate = zynqmp_pll_set_rate, }; |