Quoting Tony Xie (2018-08-23 20:36:02)
> diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
> index 6461f28..c5d3492 100644
> --- a/drivers/clk/clk-rk808.c
> +++ b/drivers/clk/clk-rk808.c
> @@ -96,6 +96,66 @@ static int rk808_clkout2_is_prepared(struct clk_hw *hw)
> +
> +static int rk817_clkout2_is_prepared(struct clk_hw *hw)
> +{
> + struct rk808_clkout *rk808_clkout = container_of(hw,
> + struct rk808_clkout,
> + clkout2_hw);
> + struct rk808 *rk808 = rk808_clkout->rk808;
> + unsigned int val;
> +
> + int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
> +
> + if (ret < 0)
> + return ret;
The clk core handles the return value here as true or false. Probably
should return 0 here.
> +
> + return (val & RK817_CLK32KOUT2_EN) ? 1 : 0;
> +}
> +
> +static const struct clk_ops rk817_clkout2_ops = {
> + .prepare = rk817_clkout2_prepare,
> + .unprepare = rk817_clkout2_unprepare,
> + .is_prepared = rk817_clkout2_is_prepared,
> + .recalc_rate = rk808_clkout_recalc_rate,
> +};
> +
> +static const struct clk_ops *rkpmic_get_ops(long variant)
Use the enum here for 'variant'? Then the case statement here will
complain loudly for unhandled cases.
> +{
> + switch (variant) {
> + case RK809_ID:
> + case RK817_ID:
> + return &rk817_clkout2_ops;
> + case RK805_ID:
> + case RK808_ID:
> + case RK818_ID:
> + return &rk808_clkout2_ops;
> + }
> +
> + return &rk808_clkout2_ops;
> +}
> +
> static int rk808_clkout_probe(struct platform_device *pdev)
> {
> struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
> @@ -127,7 +187,7 @@ static int rk808_clkout_probe(struct platform_device *pdev)
> return ret;
>
> init.name = "rk808-clkout2";
> - init.ops = &rk808_clkout2_ops;
> + init.ops = rkpmic_get_ops(rk808->variant);
> rk808_clkout->clkout2_hw.init = &init;
>
> /* optional override of the clockname */
> --
> 1.9.1
>
>
