[PATCH 09/12] soc: xilinx: vcu: make pll post divider explicit

Michal Simek michal.simek at xilinx.com
Wed Dec 2 09:51:25 EST 2020



On 16. 11. 20 8:55, Michael Tretter wrote:
> According to the downstream driver documentation due to timing
> constraints the output divider of the PLL has to be set to 1/2. Add a
> helper function for that check instead of burying the code in one large
> setup function.
> 
> The bit is undocumented and marked as reserved in the register
> reference.
> 
> Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
> ---
>  drivers/soc/xilinx/xlnx_vcu.c | 51 ++++++++++++++++++++++++-----------
>  1 file changed, 35 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/soc/xilinx/xlnx_vcu.c b/drivers/soc/xilinx/xlnx_vcu.c
> index cedc8b7859f7..cf8456b4ef78 100644
> --- a/drivers/soc/xilinx/xlnx_vcu.c
> +++ b/drivers/soc/xilinx/xlnx_vcu.c
> @@ -79,6 +79,7 @@ struct xvcu_device {
>  	struct regmap *logicore_reg_ba;
>  	void __iomem *vcu_slcr_ba;
>  	struct clk_hw *pll;
> +	struct clk_hw *pll_post;

kernel doc again.

M



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