[PATCH] clk: ti: fix flag space conflict with clkctrl clocks

Tero Kristo t-kristo at ti.com
Thu Mar 29 11:25:07 PDT 2018


On 27/03/18 20:47, Tero Kristo wrote:
> The introduction of support for CLK_SET_RATE_PARENT flag for clkctrl
> clocks used a generic clock flag, which causes a conflict with the
> rest of the clkctrl flags, namely the NO_IDLEST flag. This can cause
> boot failures on certain platforms where this flag is introduced, by
> omitting the wait for the clockctrl module to be fully enabled before
> proceeding with rest of the code.
> 
> Fix this by moving all the clkctrl specific flags to their own bit-range.
> 
> Signed-off-by: Tero Kristo <t-kristo at ti.com>
> Fixes: 49159a9dc3da ("clk: ti: add support for CLK_SET_RATE_PARENT flag")
> Reported-by: Christophe Lyon <christophe.lyon at linaro.org>

Stephen, can you pick this up as a late fix?

-Tero

> ---
>   drivers/clk/ti/clock.h | 9 +++++----
>   1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
> index 90b86aa..b582780 100644
> --- a/drivers/clk/ti/clock.h
> +++ b/drivers/clk/ti/clock.h
> @@ -76,6 +76,11 @@ enum {
>   #define CLKF_CORE			(1 << 9)
>   #define CLKF_J_TYPE			(1 << 10)
>   
> +/* CLKCTRL flags */
> +#define CLKF_SW_SUP			BIT(5)
> +#define CLKF_HW_SUP			BIT(6)
> +#define CLKF_NO_IDLEST			BIT(7)
> +
>   #define CLK(dev, con, ck)		\
>   	{				\
>   		.lk = {			\
> @@ -185,10 +190,6 @@ struct omap_clkctrl_data {
>   extern const struct omap_clkctrl_data dm814_clkctrl_data[];
>   extern const struct omap_clkctrl_data dm816_clkctrl_data[];
>   
> -#define CLKF_SW_SUP	BIT(0)
> -#define CLKF_HW_SUP	BIT(1)
> -#define CLKF_NO_IDLEST	BIT(2)
> -
>   typedef void (*ti_of_clk_init_cb_t)(void *, struct device_node *);
>   
>   struct clk *ti_clk_register(struct device *dev, struct clk_hw *hw,
> 

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