[PATCH] clk: zynqmp: Correct bit index for divider flag

[PATCH] clk: zynqmp: Correct bit index for divider flag

[Rajan Vaja]

Update divider flag bit index to match with firmware.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 drivers/clk/zynqmp/divider.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index d8f5b70d..9e60834 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -2,7 +2,7 @@
 /*
  * Zynq UltraScale+ MPSoC Divider support
  *
- *  Copyright (C) 2016-2018 Xilinx
+ *  Copyright (C) 2016-2019 Xilinx
  *
  * Adjustable divider clock implementation
  */
@@ -25,7 +25,7 @@
 #define to_zynqmp_clk_divider(_hw)		\
 	container_of(_hw, struct zynqmp_clk_divider, hw)
 
-#define CLK_FRAC	BIT(13) /* has a fractional parent */
+#define CLK_FRAC	BIT(8) /* has a fractional parent */
 
 /**
  * struct zynqmp_clk_divider - adjustable divider clock
-- 
2.7.4

Re: [PATCH] clk: zynqmp: Correct bit index for divider flag

[Michael Tretter]

On Thu, 07 Nov 2019 01:01:30 -0800, Rajan Vaja wrote:
> Update divider flag bit index to match with firmware.
> 
> Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
> Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> ---
>  drivers/clk/zynqmp/divider.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
> index d8f5b70d..9e60834 100644
> --- a/drivers/clk/zynqmp/divider.c
> +++ b/drivers/clk/zynqmp/divider.c
> @@ -2,7 +2,7 @@
>  /*
>   * Zynq UltraScale+ MPSoC Divider support
>   *
> - *  Copyright (C) 2016-2018 Xilinx
> + *  Copyright (C) 2016-2019 Xilinx
>   *
>   * Adjustable divider clock implementation
>   */
> @@ -25,7 +25,7 @@
>  #define to_zynqmp_clk_divider(_hw)		\
>  	container_of(_hw, struct zynqmp_clk_divider, hw)
>  
> -#define CLK_FRAC	BIT(13) /* has a fractional parent */
> +#define CLK_FRAC	BIT(8) /* has a fractional parent */

NACK.

This breaks the compatibility with the older/upstream versions of the
TF-A. You have to at least make this dependent on the used version of
the TF-A.

>  
>  /**
>   * struct zynqmp_clk_divider - adjustable divider clock