Am Dienstag, 1. März 2016, 18:14:33 schrieb Xing Zheng:
> The rk3399's pll and clock are similar with rk3036's, it different
> with base on the rk3066(rk3188, rk3288, rk3368 use it), there are
> different adjust foctors and control registers, so these should be
> independent and separate from the series of rk3066s.
>
> Signed-off-by: Xing Zheng <[email protected]>
[...]
> +static int rockchip_rk3399_pll_set_params(struct rockchip_clk_pll *pll,
> + const struct rockchip_pll_rate_table *rate)
> +{
> + const struct clk_ops *pll_mux_ops = pll->pll_mux_ops;
> + struct clk_mux *pll_mux = &pll->pll_mux;
> + struct rockchip_pll_rate_table cur;
> + u32 pllcon;
> + int rate_change_remuxed = 0;
> + int cur_parent;
> + int ret;
> +
> + pr_debug("%s: rate settings for %lu fbdiv: %d, postdiv1: %d, refdiv: %d,
> postdiv2: %d, dsmpd: %d, frac: %d\n", + __func__, rate->rate,
> rate->fbdiv, rate->postdiv1, rate->refdiv, + rate->postdiv2,
> rate->dsmpd, rate->frac);
> +
> + rockchip_rk3399_pll_get_params(pll, &cur);
> + cur.rate = 0;
> +
> + cur_parent = pll_mux_ops->get_parent(&pll_mux->hw);
> + if (cur_parent == PLL_MODE_NORM) {
> + pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_SLOW);
> + rate_change_remuxed = 1;
> + }
> +
> + /* update pll values */
> + writel_relaxed(HIWORD_UPDATE(rate->fbdiv, RK3399_PLLCON0_FBDIV_MASK,
> + RK3399_PLLCON0_FBDIV_SHIFT),
indentation is strange ... I guess the plan was to move
RK3399_PLLCON0_FBDIV_SHIFT under RK3399_PLLCON0_FBDIV_MASK, currently it's
having tabs + spaces but has no alignment whatsoever
> + pll->reg_base + RK3399_PLLCON(0));
> +
> + writel_relaxed(HIWORD_UPDATE(rate->refdiv, RK3399_PLLCON1_REFDIV_MASK,
> + RK3399_PLLCON1_REFDIV_SHIFT)
> |
> + HIWORD_UPDATE(rate->postdiv1,
> RK3399_PLLCON1_POSTDIV1_MASK,
> + RK3399_PLLCON1_POSTDIV1_SHIFT) |
same for postdiv1
> + HIWORD_UPDATE(rate->postdiv2,
> RK3399_PLLCON1_POSTDIV2_MASK,
> +
> RK3399_PLLCON1_POSTDIV2_SHIFT),
> + pll->reg_base + RK3399_PLLCON(1));
rest looks nice
Heiko
