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* [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
@ 2023-09-18 15:36 ` Stefan Moring
  0 siblings, 0 replies; 6+ messages in thread
From: Stefan Moring @ 2023-09-18 15:36 UTC (permalink / raw)
  To: broonie, shawnguo, s.hauer, festevam, linux-imx, linux-spi,
	linux-arm-kernel, sre
  Cc: Stefan Moring

The IMX spi driver has a hardcoded 8, breaking the driver for word
lengths other than 8.

Signed-off-by: Stefan Moring <stefanmoring@gmail.com>

---
 drivers/spi/spi-imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index a8a74c7cb79f..498e35c8db2c 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -662,7 +662,7 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 		if (spi_imx->count >= 512)
 			ctrl |= 0xFFF << MX51_ECSPI_CTRL_BL_OFFSET;
 		else
-			ctrl |= (spi_imx->count*8 - 1)
+			ctrl |= (spi_imx->count * spi_imx->bits_per_word - 1)
 				<< MX51_ECSPI_CTRL_BL_OFFSET;
 	}
 
-- 
2.42.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
@ 2023-09-18 15:36 ` Stefan Moring
  0 siblings, 0 replies; 6+ messages in thread
From: Stefan Moring @ 2023-09-18 15:36 UTC (permalink / raw)
  To: broonie, shawnguo, s.hauer, festevam, linux-imx, linux-spi,
	linux-arm-kernel, sre
  Cc: Stefan Moring

The IMX spi driver has a hardcoded 8, breaking the driver for word
lengths other than 8.

Signed-off-by: Stefan Moring <stefanmoring@gmail.com>

---
 drivers/spi/spi-imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index a8a74c7cb79f..498e35c8db2c 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -662,7 +662,7 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 		if (spi_imx->count >= 512)
 			ctrl |= 0xFFF << MX51_ECSPI_CTRL_BL_OFFSET;
 		else
-			ctrl |= (spi_imx->count*8 - 1)
+			ctrl |= (spi_imx->count * spi_imx->bits_per_word - 1)
 				<< MX51_ECSPI_CTRL_BL_OFFSET;
 	}
 
-- 
2.42.0


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
  2023-09-17 18:47   ` Sebastian Reichel
@ 2023-09-18 12:48     ` Fabio Estevam
  -1 siblings, 0 replies; 6+ messages in thread
From: Fabio Estevam @ 2023-09-18 12:48 UTC (permalink / raw)
  To: Sebastian Reichel
  Cc: Stefan Moring, broonie, shawnguo, s.hauer, linux-imx, linux-psi,
	linux-arm-kernel, linux-kernel

Hi Stefan,

There is a typo in the spi mailing list. It should be linux-spi@vger.kernel.org.

On Sun, Sep 17, 2023 at 3:47 PM Sebastian Reichel <sre@kernel.org> wrote:
>
> Hi,
>
> On Sun, Sep 17, 2023 at 06:40:37PM +0200, Stefan Moring wrote:
> > The IMX spi driver has a hardcoded 8, breaking the driver for word
> > lengths other than 8.
> >
> > Signed-off-by: Stefan Moring <stefanmoring@gmail.com>
> > ---
>
> patch subject is missing the 'spi: imx:' prefix. Otherwise:
>
> Reported-by: Sebastian Reichel <sre@kernel.org>
> Fixes: 15a6af94a277 ("spi: Increase imx51 ecspi burst length based on transfer length")
> Tested-by: Sebastian Reichel <sre@kernel.org>

With the above tags added and the Subject line fixed:

Reviewed-by: Fabio Estevam <festevam@gmail.com>

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
@ 2023-09-18 12:48     ` Fabio Estevam
  0 siblings, 0 replies; 6+ messages in thread
From: Fabio Estevam @ 2023-09-18 12:48 UTC (permalink / raw)
  To: Sebastian Reichel
  Cc: Stefan Moring, broonie, shawnguo, s.hauer, linux-imx, linux-psi,
	linux-arm-kernel, linux-kernel

Hi Stefan,

There is a typo in the spi mailing list. It should be linux-spi@vger.kernel.org.

On Sun, Sep 17, 2023 at 3:47 PM Sebastian Reichel <sre@kernel.org> wrote:
>
> Hi,
>
> On Sun, Sep 17, 2023 at 06:40:37PM +0200, Stefan Moring wrote:
> > The IMX spi driver has a hardcoded 8, breaking the driver for word
> > lengths other than 8.
> >
> > Signed-off-by: Stefan Moring <stefanmoring@gmail.com>
> > ---
>
> patch subject is missing the 'spi: imx:' prefix. Otherwise:
>
> Reported-by: Sebastian Reichel <sre@kernel.org>
> Fixes: 15a6af94a277 ("spi: Increase imx51 ecspi burst length based on transfer length")
> Tested-by: Sebastian Reichel <sre@kernel.org>

With the above tags added and the Subject line fixed:

Reviewed-by: Fabio Estevam <festevam@gmail.com>

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
  2023-09-17 16:40 [PATCH 1/1] " Stefan Moring
@ 2023-09-17 18:47   ` Sebastian Reichel
  0 siblings, 0 replies; 6+ messages in thread
From: Sebastian Reichel @ 2023-09-17 18:47 UTC (permalink / raw)
  To: Stefan Moring
  Cc: broonie, shawnguo, s.hauer, festevam, linux-imx, linux-psi,
	linux-arm-kernel, linux-kernel


[-- Attachment #1.1: Type: text/plain, Size: 1181 bytes --]

Hi,

On Sun, Sep 17, 2023 at 06:40:37PM +0200, Stefan Moring wrote:
> The IMX spi driver has a hardcoded 8, breaking the driver for word
> lengths other than 8.
> 
> Signed-off-by: Stefan Moring <stefanmoring@gmail.com>
> ---

patch subject is missing the 'spi: imx:' prefix. Otherwise:

Reported-by: Sebastian Reichel <sre@kernel.org>
Fixes: 15a6af94a277 ("spi: Increase imx51 ecspi burst length based on transfer length")
Tested-by: Sebastian Reichel <sre@kernel.org>

(no need to Cc stable, since the regression is only in v6.6-rc1)

-- Sebastian

>  drivers/spi/spi-imx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
> index a8a74c7cb79f..498e35c8db2c 100644
> --- a/drivers/spi/spi-imx.c
> +++ b/drivers/spi/spi-imx.c
> @@ -662,7 +662,7 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
>  		if (spi_imx->count >= 512)
>  			ctrl |= 0xFFF << MX51_ECSPI_CTRL_BL_OFFSET;
>  		else
> -			ctrl |= (spi_imx->count*8 - 1)
> +			ctrl |= (spi_imx->count * spi_imx->bits_per_word - 1)
>  				<< MX51_ECSPI_CTRL_BL_OFFSET;
>  	}
>  
> -- 
> 2.42.0
> 

[-- Attachment #1.2: signature.asc --]
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[-- Attachment #2: Type: text/plain, Size: 176 bytes --]

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits
@ 2023-09-17 18:47   ` Sebastian Reichel
  0 siblings, 0 replies; 6+ messages in thread
From: Sebastian Reichel @ 2023-09-17 18:47 UTC (permalink / raw)
  To: Stefan Moring
  Cc: broonie, shawnguo, s.hauer, festevam, linux-imx, linux-psi,
	linux-arm-kernel, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 1181 bytes --]

Hi,

On Sun, Sep 17, 2023 at 06:40:37PM +0200, Stefan Moring wrote:
> The IMX spi driver has a hardcoded 8, breaking the driver for word
> lengths other than 8.
> 
> Signed-off-by: Stefan Moring <stefanmoring@gmail.com>
> ---

patch subject is missing the 'spi: imx:' prefix. Otherwise:

Reported-by: Sebastian Reichel <sre@kernel.org>
Fixes: 15a6af94a277 ("spi: Increase imx51 ecspi burst length based on transfer length")
Tested-by: Sebastian Reichel <sre@kernel.org>

(no need to Cc stable, since the regression is only in v6.6-rc1)

-- Sebastian

>  drivers/spi/spi-imx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
> index a8a74c7cb79f..498e35c8db2c 100644
> --- a/drivers/spi/spi-imx.c
> +++ b/drivers/spi/spi-imx.c
> @@ -662,7 +662,7 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
>  		if (spi_imx->count >= 512)
>  			ctrl |= 0xFFF << MX51_ECSPI_CTRL_BL_OFFSET;
>  		else
> -			ctrl |= (spi_imx->count*8 - 1)
> +			ctrl |= (spi_imx->count * spi_imx->bits_per_word - 1)
>  				<< MX51_ECSPI_CTRL_BL_OFFSET;
>  	}
>  
> -- 
> 2.42.0
> 

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^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-09-18 15:44 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-09-18 15:36 [PATCH 1/1] spi: imx: take in account bits per word instead of assuming 8-bits Stefan Moring
2023-09-18 15:36 ` Stefan Moring
  -- strict thread matches above, loose matches on Subject: below --
2023-09-17 16:40 [PATCH 1/1] " Stefan Moring
2023-09-17 18:47 ` [PATCH 1/1] spi: imx: " Sebastian Reichel
2023-09-17 18:47   ` Sebastian Reichel
2023-09-18 12:48   ` Fabio Estevam
2023-09-18 12:48     ` Fabio Estevam

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