[v2,3/7] mtd: spi_nor: Move manufacturer quad_enable() in ->default_init()
diff mbox series

Message ID 20190824120027.14452-4-tudor.ambarus@microchip.com
State Changes Requested
Delegated to: Ambarus Tudor
Headers show
Series
  • mtd: spi-nor: move manuf out of the core - batch 1
Related show

Commit Message

Ambarus Tudor Aug. 24, 2019, noon UTC
From: Tudor Ambarus <tudor.ambarus@microchip.com>

The goal is to move the quad_enable manufacturer specific init in the
nor->manufacturer->fixups->default_init()

The legacy quad_enable() implementation is spansion_quad_enable(),
select this method by default.

Set specific manufacturer fixups->default_init() hooks to overwrite
the default quad_enable() implementation when needed.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/spi-nor.c | 48 ++++++++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 19 deletions(-)

Comments

Boris Brezillon Aug. 25, 2019, 11:47 a.m. UTC | #1
On Sat, 24 Aug 2019 12:00:41 +0000
<Tudor.Ambarus@microchip.com> wrote:

> From: Tudor Ambarus <tudor.ambarus@microchip.com>
> 
> The goal is to move the quad_enable manufacturer specific init in the
> nor->manufacturer->fixups->default_init()
> 
> The legacy quad_enable() implementation is spansion_quad_enable(),
> select this method by default.
> 
> Set specific manufacturer fixups->default_init() hooks to overwrite
> the default quad_enable() implementation when needed.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
> ---
>  drivers/mtd/spi-nor/spi-nor.c | 48 ++++++++++++++++++++++++++-----------------
>  1 file changed, 29 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
> index 27951e5a01e2..c9514dfd7d6d 100644
> --- a/drivers/mtd/spi-nor/spi-nor.c
> +++ b/drivers/mtd/spi-nor/spi-nor.c
> @@ -4150,13 +4150,38 @@ static int spi_nor_parse_sfdp(struct spi_nor *nor,
>  	return err;
>  }
>  
> +static void macronix_set_default_init(struct spi_nor *nor)
> +{
> +	nor->params.quad_enable = macronix_quad_enable;

Since it's now supposed to be the default QE implementation I'd
recommend renaming the function into default_quad_enable() (this can be
done in a separate patch).

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>

> +}
> +
> +static void st_micron_set_default_init(struct spi_nor *nor)
> +{
> +	nor->params.quad_enable = NULL;
> +}
> +
>  /**
>   * spi_nor_manufacturer_init_params() - Initialize the flash's parameters and
> - * settings based on ->default_init() hook.
> + * settings based on MFR register and ->default_init() hook.
>   * @nor:	pointer to a 'struct spi-nor'.
>   */
>  static void spi_nor_manufacturer_init_params(struct spi_nor *nor)
>  {
> +	/* Init flash parameters based on MFR */
> +	switch (JEDEC_MFR(nor->info)) {
> +	case SNOR_MFR_MACRONIX:
> +		macronix_set_default_init(nor);
> +		break;
> +
> +	case SNOR_MFR_ST:
> +	case SNOR_MFR_MICRON:
> +		st_micron_set_default_init(nor);
> +		break;
> +
> +	default:
> +		break;
> +	}
> +
>  	if (nor->info->fixups && nor->info->fixups->default_init)
>  		nor->info->fixups->default_init(nor);
>  }
> @@ -4168,6 +4193,9 @@ static int spi_nor_init_params(struct spi_nor *nor)
>  	const struct flash_info *info = nor->info;
>  	u8 i, erase_mask;
>  
> +	/* Initialize legacy flash parameters and settings. */
> +	params->quad_enable = spansion_quad_enable;
> +
>  	/* Set SPI NOR sizes. */
>  	params->size = (u64)info->sector_size * info->n_sectors;
>  	params->page_size = info->page_size;
> @@ -4233,24 +4261,6 @@ static int spi_nor_init_params(struct spi_nor *nor)
>  			       SPINOR_OP_SE);
>  	spi_nor_init_uniform_erase_map(map, erase_mask, params->size);
>  
> -	/* Select the procedure to set the Quad Enable bit. */
> -	if (params->hwcaps.mask & (SNOR_HWCAPS_READ_QUAD |
> -				   SNOR_HWCAPS_PP_QUAD)) {
> -		switch (JEDEC_MFR(info)) {
> -		case SNOR_MFR_MACRONIX:
> -			params->quad_enable = macronix_quad_enable;
> -			break;
> -
> -		case SNOR_MFR_ST:
> -		case SNOR_MFR_MICRON:
> -			break;
> -
> -		default:
> -			/* Kept only for backward compatibility purpose. */
> -			params->quad_enable = spansion_quad_enable;
> -			break;
> -		}
> -	}
>  
>  	spi_nor_manufacturer_init_params(nor);
>
Ambarus Tudor Aug. 25, 2019, 1:08 p.m. UTC | #2
On 08/25/2019 02:47 PM, Boris Brezillon wrote:
> External E-Mail
> 
> 
> On Sat, 24 Aug 2019 12:00:41 +0000
> <Tudor.Ambarus@microchip.com> wrote:
> 
>> From: Tudor Ambarus <tudor.ambarus@microchip.com>
>>
>> The goal is to move the quad_enable manufacturer specific init in the
>> nor->manufacturer->fixups->default_init()
>>
>> The legacy quad_enable() implementation is spansion_quad_enable(),
>> select this method by default.
>>
>> Set specific manufacturer fixups->default_init() hooks to overwrite
>> the default quad_enable() implementation when needed.
>>
>> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
>> ---
>>  drivers/mtd/spi-nor/spi-nor.c | 48 ++++++++++++++++++++++++++-----------------
>>  1 file changed, 29 insertions(+), 19 deletions(-)
>>
>> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
>> index 27951e5a01e2..c9514dfd7d6d 100644
>> --- a/drivers/mtd/spi-nor/spi-nor.c
>> +++ b/drivers/mtd/spi-nor/spi-nor.c
>> @@ -4150,13 +4150,38 @@ static int spi_nor_parse_sfdp(struct spi_nor *nor,
>>  	return err;
>>  }
>>  
>> +static void macronix_set_default_init(struct spi_nor *nor)
>> +{
>> +	nor->params.quad_enable = macronix_quad_enable;
> 
> Since it's now supposed to be the default QE implementation I'd
> recommend renaming the function into default_quad_enable() (this can be
> done in a separate patch).

You are referring to spansion_quad_enable. Yes, you made a patch that stops
prefixing generic functions with a manufacturer name, will follow.
https://patchwork.ozlabs.org/patch/1009264/

> 
> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
> 
>> +}
>> +
>> +static void st_micron_set_default_init(struct spi_nor *nor)
>> +{
>> +	nor->params.quad_enable = NULL;
>> +}
>> +
>>  /**
>>   * spi_nor_manufacturer_init_params() - Initialize the flash's parameters and
>> - * settings based on ->default_init() hook.
>> + * settings based on MFR register and ->default_init() hook.
>>   * @nor:	pointer to a 'struct spi-nor'.
>>   */
>>  static void spi_nor_manufacturer_init_params(struct spi_nor *nor)
>>  {
>> +	/* Init flash parameters based on MFR */
>> +	switch (JEDEC_MFR(nor->info)) {
>> +	case SNOR_MFR_MACRONIX:
>> +		macronix_set_default_init(nor);
>> +		break;
>> +
>> +	case SNOR_MFR_ST:
>> +	case SNOR_MFR_MICRON:
>> +		st_micron_set_default_init(nor);
>> +		break;
>> +
>> +	default:
>> +		break;
>> +	}
>> +
>>  	if (nor->info->fixups && nor->info->fixups->default_init)
>>  		nor->info->fixups->default_init(nor);
>>  }
>> @@ -4168,6 +4193,9 @@ static int spi_nor_init_params(struct spi_nor *nor)
>>  	const struct flash_info *info = nor->info;
>>  	u8 i, erase_mask;
>>  
>> +	/* Initialize legacy flash parameters and settings. */
>> +	params->quad_enable = spansion_quad_enable;
>> +
>>  	/* Set SPI NOR sizes. */
>>  	params->size = (u64)info->sector_size * info->n_sectors;
>>  	params->page_size = info->page_size;
>> @@ -4233,24 +4261,6 @@ static int spi_nor_init_params(struct spi_nor *nor)
>>  			       SPINOR_OP_SE);
>>  	spi_nor_init_uniform_erase_map(map, erase_mask, params->size);
>>  
>> -	/* Select the procedure to set the Quad Enable bit. */
>> -	if (params->hwcaps.mask & (SNOR_HWCAPS_READ_QUAD |
>> -				   SNOR_HWCAPS_PP_QUAD)) {
>> -		switch (JEDEC_MFR(info)) {
>> -		case SNOR_MFR_MACRONIX:
>> -			params->quad_enable = macronix_quad_enable;
>> -			break;
>> -
>> -		case SNOR_MFR_ST:
>> -		case SNOR_MFR_MICRON:
>> -			break;
>> -
>> -		default:
>> -			/* Kept only for backward compatibility purpose. */
>> -			params->quad_enable = spansion_quad_enable;
>> -			break;
>> -		}
>> -	}
>>  
>>  	spi_nor_manufacturer_init_params(nor);
>>  
> 
> 
>

Patch
diff mbox series

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 27951e5a01e2..c9514dfd7d6d 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -4150,13 +4150,38 @@  static int spi_nor_parse_sfdp(struct spi_nor *nor,
 	return err;
 }
 
+static void macronix_set_default_init(struct spi_nor *nor)
+{
+	nor->params.quad_enable = macronix_quad_enable;
+}
+
+static void st_micron_set_default_init(struct spi_nor *nor)
+{
+	nor->params.quad_enable = NULL;
+}
+
 /**
  * spi_nor_manufacturer_init_params() - Initialize the flash's parameters and
- * settings based on ->default_init() hook.
+ * settings based on MFR register and ->default_init() hook.
  * @nor:	pointer to a 'struct spi-nor'.
  */
 static void spi_nor_manufacturer_init_params(struct spi_nor *nor)
 {
+	/* Init flash parameters based on MFR */
+	switch (JEDEC_MFR(nor->info)) {
+	case SNOR_MFR_MACRONIX:
+		macronix_set_default_init(nor);
+		break;
+
+	case SNOR_MFR_ST:
+	case SNOR_MFR_MICRON:
+		st_micron_set_default_init(nor);
+		break;
+
+	default:
+		break;
+	}
+
 	if (nor->info->fixups && nor->info->fixups->default_init)
 		nor->info->fixups->default_init(nor);
 }
@@ -4168,6 +4193,9 @@  static int spi_nor_init_params(struct spi_nor *nor)
 	const struct flash_info *info = nor->info;
 	u8 i, erase_mask;
 
+	/* Initialize legacy flash parameters and settings. */
+	params->quad_enable = spansion_quad_enable;
+
 	/* Set SPI NOR sizes. */
 	params->size = (u64)info->sector_size * info->n_sectors;
 	params->page_size = info->page_size;
@@ -4233,24 +4261,6 @@  static int spi_nor_init_params(struct spi_nor *nor)
 			       SPINOR_OP_SE);
 	spi_nor_init_uniform_erase_map(map, erase_mask, params->size);
 
-	/* Select the procedure to set the Quad Enable bit. */
-	if (params->hwcaps.mask & (SNOR_HWCAPS_READ_QUAD |
-				   SNOR_HWCAPS_PP_QUAD)) {
-		switch (JEDEC_MFR(info)) {
-		case SNOR_MFR_MACRONIX:
-			params->quad_enable = macronix_quad_enable;
-			break;
-
-		case SNOR_MFR_ST:
-		case SNOR_MFR_MICRON:
-			break;
-
-		default:
-			/* Kept only for backward compatibility purpose. */
-			params->quad_enable = spansion_quad_enable;
-			break;
-		}
-	}
 
 	spi_nor_manufacturer_init_params(nor);