diff mbox

[V3,1/2] mtd: nand: brcmnand: Change brcmnand_set_wp() prototype

Message ID 1487647832-10544-1-git-send-email-kdasu.kdev@gmail.com
State Superseded
Delegated to: Boris Brezillon
Headers show

Commit Message

Kamal Dasu Feb. 21, 2017, 3:30 a.m. UTC
Changing brcmnand_set_wp() prototype in prepration for refactoring the nand
write protect logic to add flash status byte check for the protection bit.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
---
 drivers/mtd/nand/brcmnand/brcmnand.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

Comments

Boris Brezillon Feb. 27, 2017, 4:09 p.m. UTC | #1
Hi Kamal,

This time I'm not even in the recipients list :-(. Can you please make
sure you Cc all the relevant maintainers when sending a patch (this is
not the first time it happens).

Thanks,

Boris

On Mon, 20 Feb 2017 22:30:31 -0500
Kamal Dasu <kdasu.kdev@gmail.com> wrote:

> Changing brcmnand_set_wp() prototype in prepration for refactoring the nand
> write protect logic to add flash status byte check for the protection bit.
> 
> Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
> ---
>  drivers/mtd/nand/brcmnand/brcmnand.c | 27 +++++++++++++++++----------
>  1 file changed, 17 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
> index 42ebd73..c7c4efe 100644
> --- a/drivers/mtd/nand/brcmnand/brcmnand.c
> +++ b/drivers/mtd/nand/brcmnand/brcmnand.c
> @@ -765,11 +765,14 @@ enum {
>  	CS_SELECT_AUTO_DEVICE_ID_CFG		= BIT(30),
>  };
>  
> -static inline void brcmnand_set_wp(struct brcmnand_controller *ctrl, bool en)
> +static int brcmnand_set_wp(struct brcmnand_host *host, int en)
>  {
> +	struct brcmnand_controller *ctrl = host->ctrl;
>  	u32 val = en ? CS_SELECT_NAND_WP : 0;
>  
>  	brcmnand_rmw_reg(ctrl, BRCMNAND_CS_SELECT, CS_SELECT_NAND_WP, 0, val);
> +
> +	return 0;
>  }
>  
>  /***********************************************************************
> @@ -1029,7 +1032,7 @@ static void brcmnand_wp(struct mtd_info *mtd, int wp)
>  			dev_dbg(ctrl->dev, "WP %s\n", wp ? "on" : "off");
>  			old_wp = wp;
>  		}
> -		brcmnand_set_wp(ctrl, wp);
> +		brcmnand_set_wp(host, wp);
>  	}
>  }
>  
> @@ -2462,14 +2465,6 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
>  	/* Disable XOR addressing */
>  	brcmnand_rmw_reg(ctrl, BRCMNAND_CS_XOR, 0xff, 0, 0);
>  
> -	if (ctrl->features & BRCMNAND_HAS_WP) {
> -		/* Permanently disable write protection */
> -		if (wp_on == 2)
> -			brcmnand_set_wp(ctrl, false);
> -	} else {
> -		wp_on = 0;
> -	}
> -
>  	/* IRQ */
>  	ctrl->irq = platform_get_irq(pdev, 0);
>  	if ((int)ctrl->irq < 0) {
> @@ -2522,6 +2517,18 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
>  			}
>  
>  			list_add_tail(&host->node, &ctrl->host_list);
> +
> +			if (ctrl->features & BRCMNAND_HAS_WP) {
> +				/* Permanently disable write protection */
> +				if (wp_on == 2) {
> +					ret = brcmnand_set_wp(host, false);
> +					if (ret)
> +						goto err;
> +				}
> +			} else {
> +				wp_on = 0;
> +			}
> +
>  		}
>  	}
>
Kamal Dasu Feb. 27, 2017, 4:41 p.m. UTC | #2
Ok will make sure the mtd email list is up-to-date.

Thanks
Kamal

On Mon, Feb 27, 2017 at 11:09 AM, Boris Brezillon
<boris.brezillon@free-electrons.com> wrote:
> Hi Kamal,
>
> This time I'm not even in the recipients list :-(. Can you please make
> sure you Cc all the relevant maintainers when sending a patch (this is
> not the first time it happens).
>
> Thanks,
>
> Boris
>
> On Mon, 20 Feb 2017 22:30:31 -0500
> Kamal Dasu <kdasu.kdev@gmail.com> wrote:
>
>> Changing brcmnand_set_wp() prototype in prepration for refactoring the nand
>> write protect logic to add flash status byte check for the protection bit.
>>
>> Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
>> ---
>>  drivers/mtd/nand/brcmnand/brcmnand.c | 27 +++++++++++++++++----------
>>  1 file changed, 17 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
>> index 42ebd73..c7c4efe 100644
>> --- a/drivers/mtd/nand/brcmnand/brcmnand.c
>> +++ b/drivers/mtd/nand/brcmnand/brcmnand.c
>> @@ -765,11 +765,14 @@ enum {
>>       CS_SELECT_AUTO_DEVICE_ID_CFG            = BIT(30),
>>  };
>>
>> -static inline void brcmnand_set_wp(struct brcmnand_controller *ctrl, bool en)
>> +static int brcmnand_set_wp(struct brcmnand_host *host, int en)
>>  {
>> +     struct brcmnand_controller *ctrl = host->ctrl;
>>       u32 val = en ? CS_SELECT_NAND_WP : 0;
>>
>>       brcmnand_rmw_reg(ctrl, BRCMNAND_CS_SELECT, CS_SELECT_NAND_WP, 0, val);
>> +
>> +     return 0;
>>  }
>>
>>  /***********************************************************************
>> @@ -1029,7 +1032,7 @@ static void brcmnand_wp(struct mtd_info *mtd, int wp)
>>                       dev_dbg(ctrl->dev, "WP %s\n", wp ? "on" : "off");
>>                       old_wp = wp;
>>               }
>> -             brcmnand_set_wp(ctrl, wp);
>> +             brcmnand_set_wp(host, wp);
>>       }
>>  }
>>
>> @@ -2462,14 +2465,6 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
>>       /* Disable XOR addressing */
>>       brcmnand_rmw_reg(ctrl, BRCMNAND_CS_XOR, 0xff, 0, 0);
>>
>> -     if (ctrl->features & BRCMNAND_HAS_WP) {
>> -             /* Permanently disable write protection */
>> -             if (wp_on == 2)
>> -                     brcmnand_set_wp(ctrl, false);
>> -     } else {
>> -             wp_on = 0;
>> -     }
>> -
>>       /* IRQ */
>>       ctrl->irq = platform_get_irq(pdev, 0);
>>       if ((int)ctrl->irq < 0) {
>> @@ -2522,6 +2517,18 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
>>                       }
>>
>>                       list_add_tail(&host->node, &ctrl->host_list);
>> +
>> +                     if (ctrl->features & BRCMNAND_HAS_WP) {
>> +                             /* Permanently disable write protection */
>> +                             if (wp_on == 2) {
>> +                                     ret = brcmnand_set_wp(host, false);
>> +                                     if (ret)
>> +                                             goto err;
>> +                             }
>> +                     } else {
>> +                             wp_on = 0;
>> +                     }
>> +
>>               }
>>       }
>>
>
diff mbox

Patch

diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 42ebd73..c7c4efe 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -765,11 +765,14 @@  enum {
 	CS_SELECT_AUTO_DEVICE_ID_CFG		= BIT(30),
 };
 
-static inline void brcmnand_set_wp(struct brcmnand_controller *ctrl, bool en)
+static int brcmnand_set_wp(struct brcmnand_host *host, int en)
 {
+	struct brcmnand_controller *ctrl = host->ctrl;
 	u32 val = en ? CS_SELECT_NAND_WP : 0;
 
 	brcmnand_rmw_reg(ctrl, BRCMNAND_CS_SELECT, CS_SELECT_NAND_WP, 0, val);
+
+	return 0;
 }
 
 /***********************************************************************
@@ -1029,7 +1032,7 @@  static void brcmnand_wp(struct mtd_info *mtd, int wp)
 			dev_dbg(ctrl->dev, "WP %s\n", wp ? "on" : "off");
 			old_wp = wp;
 		}
-		brcmnand_set_wp(ctrl, wp);
+		brcmnand_set_wp(host, wp);
 	}
 }
 
@@ -2462,14 +2465,6 @@  int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 	/* Disable XOR addressing */
 	brcmnand_rmw_reg(ctrl, BRCMNAND_CS_XOR, 0xff, 0, 0);
 
-	if (ctrl->features & BRCMNAND_HAS_WP) {
-		/* Permanently disable write protection */
-		if (wp_on == 2)
-			brcmnand_set_wp(ctrl, false);
-	} else {
-		wp_on = 0;
-	}
-
 	/* IRQ */
 	ctrl->irq = platform_get_irq(pdev, 0);
 	if ((int)ctrl->irq < 0) {
@@ -2522,6 +2517,18 @@  int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
 			}
 
 			list_add_tail(&host->node, &ctrl->host_list);
+
+			if (ctrl->features & BRCMNAND_HAS_WP) {
+				/* Permanently disable write protection */
+				if (wp_on == 2) {
+					ret = brcmnand_set_wp(host, false);
+					if (ret)
+						goto err;
+				}
+			} else {
+				wp_on = 0;
+			}
+
 		}
 	}