Re: [PATCH 6/8] mtd: rawnand: jz4780-bch: Don't set clock rate in driver

2019-01-18 Thread Boris Brezillon
On Thu, 17 Jan 2019 22:06:32 -0300
Paul Cercueil  wrote:

> This should be done in devicetree. Besides, it prevents us from
> supporting other SoCs which don't use the same clock frequency for the
> BCH hardware.

As I said earlier, I disagree with this statement, plus, you're
breaking backward compat with existing DTs when doing that.

> 
> Signed-off-by: Paul Cercueil 
> ---
>  drivers/mtd/nand/raw/jz4780_bch.c | 4 
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/mtd/nand/raw/jz4780_bch.c 
> b/drivers/mtd/nand/raw/jz4780_bch.c
> index 7e4e5e627603..161d3821e1c4 100644
> --- a/drivers/mtd/nand/raw/jz4780_bch.c
> +++ b/drivers/mtd/nand/raw/jz4780_bch.c
> @@ -57,8 +57,6 @@
>  #define BCH_BHINT_UNCOR  BIT(1)
>  #define BCH_BHINT_ERRBIT(0)
>  
> -#define BCH_CLK_RATE (200 * 1000 * 1000)
> -
>  /* Timeout for BCH calculation/correction. */
>  #define BCH_TIMEOUT_US   10
>  
> @@ -348,8 +346,6 @@ static int jz4780_bch_probe(struct platform_device *pdev)
>   return PTR_ERR(bch->clk);
>   }
>  
> - clk_set_rate(bch->clk, BCH_CLK_RATE);
> -
>   mutex_init(>lock);
>  
>   bch->dev = dev;



[PATCH 6/8] mtd: rawnand: jz4780-bch: Don't set clock rate in driver

2019-01-17 Thread Paul Cercueil
This should be done in devicetree. Besides, it prevents us from
supporting other SoCs which don't use the same clock frequency for the
BCH hardware.

Signed-off-by: Paul Cercueil 
---
 drivers/mtd/nand/raw/jz4780_bch.c | 4 
 1 file changed, 4 deletions(-)

diff --git a/drivers/mtd/nand/raw/jz4780_bch.c 
b/drivers/mtd/nand/raw/jz4780_bch.c
index 7e4e5e627603..161d3821e1c4 100644
--- a/drivers/mtd/nand/raw/jz4780_bch.c
+++ b/drivers/mtd/nand/raw/jz4780_bch.c
@@ -57,8 +57,6 @@
 #define BCH_BHINT_UNCORBIT(1)
 #define BCH_BHINT_ERR  BIT(0)
 
-#define BCH_CLK_RATE   (200 * 1000 * 1000)
-
 /* Timeout for BCH calculation/correction. */
 #define BCH_TIMEOUT_US 10
 
@@ -348,8 +346,6 @@ static int jz4780_bch_probe(struct platform_device *pdev)
return PTR_ERR(bch->clk);
}
 
-   clk_set_rate(bch->clk, BCH_CLK_RATE);
-
mutex_init(>lock);
 
bch->dev = dev;
-- 
2.11.0