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• * No subject
         [not found] <E1ZqY3A-0004Mt-KH@feisty.vs19.net>
  @ 2015-10-26  3:21 ` Jiada Wang
    2015-10-26  3:26 ` [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type Jiada Wang
    1 sibling, 0 replies; 3+ messages in thread
  From: Jiada Wang @ 2015-10-26  3:21 UTC (permalink / raw)
    To: linux-arm-kernel
  
  Hello
  
   > Subject: [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 
  controller type
  >
  > ECSPI contorller for iMX53 and iMX6 has few hardware issues in slave
  > mode and (32*n+1) SPI word size handling comparing to iMX51.
  > The change add possibility to detect the SPI controller is use and apply
  > workarounds/limitations.
  > Documentation for device tree bindings updated
  >
  > Signed-off-by: Anton Bondarenko <anton_bondarenko@mentor•com>
  > ---
  >   .../devicetree/bindings/spi/fsl-imx-cspi.txt       |  2 ++
  >   drivers/spi/spi-imx.c                              | 36 ++++++++++++++++++++--
  >   2 files changed, 35 insertions(+), 3 deletions(-)
  >
  > diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > index 523341a..425485f 100644
  > --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > @@ -9,6 +9,8 @@ Required properties:
  >     - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
  >     - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
  >     - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
  > +  - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53
  > +  - "fsl,imx6q-ecspi" for SPI compatible with the one integrated on i.MX6 family
  >   - reg : Offset and length of the register set for the device
  >   - interrupts : Should contain CSPI/eCSPI interrupt
  >   - fsl,spi-num-chipselects : Contains the number of the chipselect
  > diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
  > index d9b730d..41c9cef 100644
  > --- a/drivers/spi/spi-imx.c
  > +++ b/drivers/spi/spi-imx.c
  > @@ -72,7 +72,8 @@ enum spi_imx_devtype {
  >   	IMX27_CSPI,
  >   	IMX31_CSPI,
  >   	IMX35_CSPI,	/* CSPI on all i.mx except above */
  > -	IMX51_ECSPI,	/* ECSPI on i.mx51 and later */
  > +	IMX51_ECSPI,	/* ECSPI on i.mx51 */
  > +	IMX53_ECSPI,	/* ECSPI on i.mx53 and later */
  >   };
  >
  >   struct spi_imx_data;
  > @@ -129,9 +130,20 @@ static inline int is_imx35_cspi(struct spi_imx_data *d)
  >   	return d->devtype_data->devtype == IMX35_CSPI;
  >   }
  >
  > +static inline int is_imx53_ecspi(struct spi_imx_data *d)
  > +{
  > +	return d->devtype_data->devtype == IMX53_ECSPI;
  > +}
  > +
  > +static inline int is_imx5x_ecspi(struct spi_imx_data *d)
  > +{
  > +	return d->devtype_data->devtype == IMX51_ECSPI ||
  > +	       d->devtype_data->devtype == IMX53_ECSPI;
  > +}
  > +
  >   static inline unsigned spi_imx_get_fifosize(struct spi_imx_data *d)
  >   {
  > -	return (d->devtype_data->devtype == IMX51_ECSPI) ? 64 : 8;
  > +	return is_imx5x_ecspi(d) ? 64 : 8;
  >   }
  >
  >   #define MXC_SPI_BUF_RX(type)						\
  > @@ -680,6 +692,16 @@ static struct spi_imx_devtype_data imx51_ecspi_devtype_data = {
  >   	.devtype = IMX51_ECSPI,
  >   };
  >
  > +static struct spi_imx_devtype_data imx53_ecspi_devtype_data = {
  > +	/* i.mx53 and later ecspi shares the functions with i.mx51 one */
  > +	.intctrl = mx51_ecspi_intctrl,
  > +	.config = mx51_ecspi_config,
  > +	.trigger = mx51_ecspi_trigger,
  > +	.rx_available = mx51_ecspi_rx_available,
  > +	.reset = mx51_ecspi_reset,
  > +	.devtype = IMX53_ECSPI,
  > +};
  > +
  >   static const struct platform_device_id spi_imx_devtype[] = {
  >   	{
  >   		.name = "imx1-cspi",
  > @@ -697,6 +719,12 @@ static const struct platform_device_id spi_imx_devtype[] = {
  >   		.name = "imx35-cspi",
  >   		.driver_data = (kernel_ulong_t) &imx35_cspi_devtype_data,
  >   	}, {
  > +		.name = "imx53-ecspi",
  > +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  > +	}, {
  > +		.name = "imx6q-ecspi",
  > +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  > +	}, {
  >   		.name = "imx51-ecspi",
  >   		.driver_data = (kernel_ulong_t) &imx51_ecspi_devtype_data,
  >   	}, {
  > @@ -710,6 +738,8 @@ static const struct of_device_id spi_imx_dt_ids[] = {
  >   	{ .compatible = "fsl,imx27-cspi", .data = &imx27_cspi_devtype_data, },
  >   	{ .compatible = "fsl,imx31-cspi", .data = &imx31_cspi_devtype_data, },
  >   	{ .compatible = "fsl,imx35-cspi", .data = &imx35_cspi_devtype_data, },
  > +	{ .compatible = "fsl,imx53-ecspi", .data = &imx53_ecspi_devtype_data, },
  > +	{ .compatible = "fsl,imx6q-ecspi", .data = &imx53_ecspi_devtype_data, },
  >   	{ .compatible = "fsl,imx51-ecspi", .data = &imx51_ecspi_devtype_data, },
  >   	{ /* sentinel */ }
  >   };
  > @@ -1299,7 +1329,7 @@ static int spi_imx_probe(struct platform_device *pdev)
  >   	 * Only validated on i.mx6 now, can remove the constrain if validated on
  >   	 * other chips.
  >   	 */
  > -	if (spi_imx->devtype_data == &imx51_ecspi_devtype_data &&
  > +	if (is_imx5x_ecspi(spi_imx) &&
  >   	    spi_imx_sdma_init(&pdev->dev, spi_imx, master))
  >   		dev_err(&pdev->dev, "dma setup error,use pio instead\n");
  >
  >
  
  With this patch, there will still be issues with SPI controller on imx6 
  soc other than imx6q,
  for example SPI controller on imx6sl has compatibility
  "compatible = "fsl,imx6sl-ecspi", "fsl,imx51-ecspi";"
  
  So I would suggest to update device-tree file,
  for example
  imx53.dtsi
  "fsl,imx53-ecspi", "fsl,imx51-ecspi"; -> "fsl,imx53-ecspi";
  imx6qdl.dtsi
  compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi"; -> compatible = 
  "fsl,imx6q-ecspi", "fsl,imx53-ecspi";
  imx6sl.dtsi
  compatible = "fsl,imx6sl-ecspi", "fsl,imx51-ecspi"; -> compatible = 
  "fsl,imx6sl-ecspi", "fsl,imx53-ecspi";
  etc...
  by doing this, then only compatible string "fsl,imx53-ecspi" need to be
  added in driver code.
  
  Thanks,
  Jiada
  
  ^ permalink raw reply	[flat|nested] 3+ messages in thread

• * [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type
         [not found] <E1ZqY3A-0004Mt-KH@feisty.vs19.net>
    2015-10-26  3:21 ` No subject Jiada Wang
  @ 2015-10-26  3:26 ` Jiada Wang
    1 sibling, 0 replies; 3+ messages in thread
  From: Jiada Wang @ 2015-10-26  3:26 UTC (permalink / raw)
    To: linux-arm-kernel
  
  Hello
  
  > Subject: [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type
  >
  > ECSPI contorller for iMX53 and iMX6 has few hardware issues in slave
  > mode and (32*n+1) SPI word size handling comparing to iMX51.
  > The change add possibility to detect the SPI controller is use and apply
  > workarounds/limitations.
  > Documentation for device tree bindings updated
  >
  > Signed-off-by: Anton Bondarenko <anton_bondarenko@mentor•com>
  > ---
  >   .../devicetree/bindings/spi/fsl-imx-cspi.txt       |  2 ++
  >   drivers/spi/spi-imx.c                              | 36 ++++++++++++++++++++--
  >   2 files changed, 35 insertions(+), 3 deletions(-)
  >
  > diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > index 523341a..425485f 100644
  > --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  > @@ -9,6 +9,8 @@ Required properties:
  >     - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
  >     - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
  >     - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
  > +  - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53
  > +  - "fsl,imx6q-ecspi" for SPI compatible with the one integrated on i.MX6 family
  >   - reg : Offset and length of the register set for the device
  >   - interrupts : Should contain CSPI/eCSPI interrupt
  >   - fsl,spi-num-chipselects : Contains the number of the chipselect
  > diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
  > index d9b730d..41c9cef 100644
  > --- a/drivers/spi/spi-imx.c
  > +++ b/drivers/spi/spi-imx.c
  > @@ -72,7 +72,8 @@ enum spi_imx_devtype {
  >   	IMX27_CSPI,
  >   	IMX31_CSPI,
  >   	IMX35_CSPI,	/* CSPI on all i.mx except above */
  > -	IMX51_ECSPI,	/* ECSPI on i.mx51 and later */
  > +	IMX51_ECSPI,	/* ECSPI on i.mx51 */
  > +	IMX53_ECSPI,	/* ECSPI on i.mx53 and later */
  >   };
  >
  >   struct spi_imx_data;
  > @@ -129,9 +130,20 @@ static inline int is_imx35_cspi(struct spi_imx_data *d)
  >   	return d->devtype_data->devtype == IMX35_CSPI;
  >   }
  >
  > +static inline int is_imx53_ecspi(struct spi_imx_data *d)
  > +{
  > +	return d->devtype_data->devtype == IMX53_ECSPI;
  > +}
  > +
  > +static inline int is_imx5x_ecspi(struct spi_imx_data *d)
  > +{
  > +	return d->devtype_data->devtype == IMX51_ECSPI ||
  > +	       d->devtype_data->devtype == IMX53_ECSPI;
  > +}
  > +
  >   static inline unsigned spi_imx_get_fifosize(struct spi_imx_data *d)
  >   {
  > -	return (d->devtype_data->devtype == IMX51_ECSPI) ? 64 : 8;
  > +	return is_imx5x_ecspi(d) ? 64 : 8;
  >   }
  >
  >   #define MXC_SPI_BUF_RX(type)						\
  > @@ -680,6 +692,16 @@ static struct spi_imx_devtype_data imx51_ecspi_devtype_data = {
  >   	.devtype = IMX51_ECSPI,
  >   };
  >
  > +static struct spi_imx_devtype_data imx53_ecspi_devtype_data = {
  > +	/* i.mx53 and later ecspi shares the functions with i.mx51 one */
  > +	.intctrl = mx51_ecspi_intctrl,
  > +	.config = mx51_ecspi_config,
  > +	.trigger = mx51_ecspi_trigger,
  > +	.rx_available = mx51_ecspi_rx_available,
  > +	.reset = mx51_ecspi_reset,
  > +	.devtype = IMX53_ECSPI,
  > +};
  > +
  >   static const struct platform_device_id spi_imx_devtype[] = {
  >   	{
  >   		.name = "imx1-cspi",
  > @@ -697,6 +719,12 @@ static const struct platform_device_id spi_imx_devtype[] = {
  >   		.name = "imx35-cspi",
  >   		.driver_data = (kernel_ulong_t) &imx35_cspi_devtype_data,
  >   	}, {
  > +		.name = "imx53-ecspi",
  > +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  > +	}, {
  > +		.name = "imx6q-ecspi",
  > +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  > +	}, {
  >   		.name = "imx51-ecspi",
  >   		.driver_data = (kernel_ulong_t) &imx51_ecspi_devtype_data,
  >   	}, {
  > @@ -710,6 +738,8 @@ static const struct of_device_id spi_imx_dt_ids[] = {
  >   	{ .compatible = "fsl,imx27-cspi", .data = &imx27_cspi_devtype_data, },
  >   	{ .compatible = "fsl,imx31-cspi", .data = &imx31_cspi_devtype_data, },
  >   	{ .compatible = "fsl,imx35-cspi", .data = &imx35_cspi_devtype_data, },
  > +	{ .compatible = "fsl,imx53-ecspi", .data = &imx53_ecspi_devtype_data, },
  > +	{ .compatible = "fsl,imx6q-ecspi", .data = &imx53_ecspi_devtype_data, },
  >   	{ .compatible = "fsl,imx51-ecspi", .data = &imx51_ecspi_devtype_data, },
  >   	{ /* sentinel */ }
  >   };
  > @@ -1299,7 +1329,7 @@ static int spi_imx_probe(struct platform_device *pdev)
  >   	 * Only validated on i.mx6 now, can remove the constrain if validated on
  >   	 * other chips.
  >   	 */
  > -	if (spi_imx->devtype_data == &imx51_ecspi_devtype_data &&
  > +	if (is_imx5x_ecspi(spi_imx) &&
  >   	    spi_imx_sdma_init(&pdev->dev, spi_imx, master))
  >   		dev_err(&pdev->dev, "dma setup error,use pio instead\n");
  >
  >
  
  With this patch, there will still be issues with SPI controller on imx6 
  soc other than imx6q,
  for example SPI controller on imx6sl has compatibility
  "compatible = "fsl,imx6sl-ecspi", "fsl,imx51-ecspi";"
  
  So I would suggest to update device-tree file,
  for example
  imx53.dtsi
  "fsl,imx53-ecspi", "fsl,imx51-ecspi"; -> "fsl,imx53-ecspi";
  imx6qdl.dtsi
  compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi"; -> compatible = 
  "fsl,imx6q-ecspi", "fsl,imx53-ecspi";
  imx6sl.dtsi
  compatible = "fsl,imx6sl-ecspi", "fsl,imx51-ecspi"; -> compatible = 
  "fsl,imx6sl-ecspi", "fsl,imx53-ecspi";
  etc...
  by doing this, then only compatible string "fsl,imx53-ecspi" need to be
  added in driver code.
  
  Thanks,
  Jiada
  
  ^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH v2 0/8] Improvements for SPI IMX driver for Freescale IMX53 and IMX6 families
@ 2015-09-25 17:57 Anton Bondarenko
  2015-09-25 17:57 ` [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type Anton Bondarenko
  0 siblings, 1 reply; 3+ messages in thread
From: Anton Bondarenko @ 2015-09-25 17:57 UTC (permalink / raw)
  To: linux-arm-kernel

A number of patches to impove or add the implementation
for the spi-imx driver related to Freescale IMX53 and IMX6.
It would also possible some of patches can be applied for other
Freescale controllers using spi-imx driver but could not be tested
due to lack of hardware.

Anton Bondarenko (8):
  spi: imx: Fix DMA transfer
  spi: imx: replace fixed timeout with calculated one
  spi: imx: add support for all SPI word width for DMA transfer
  spi: imx: add selection for iMX53 and iMX6 controller type
  spi: imx: Add support for loopback for ECSPI controllers
  spi: imx: return error from dma channel request
  spi: imx: defer spi initialization, if DMA engine is pending
  spi: imx: Add support for SPI Slave mode for imx53 and imx6 chips

 .../devicetree/bindings/spi/fsl-imx-cspi.txt       |   3 +
 drivers/spi/spi-imx.c                              | 486 ++++++++++++++++-----
 2 files changed, 388 insertions(+), 101 deletions(-)

-- 
2.5.2

^ permalink raw reply	[flat|nested] 3+ messages in thread

• * [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type
    2015-09-25 17:57 [PATCH v2 0/8] Improvements for SPI IMX driver for Freescale IMX53 and IMX6 families Anton Bondarenko
  @ 2015-09-25 17:57 ` Anton Bondarenko
    0 siblings, 0 replies; 3+ messages in thread
  From: Anton Bondarenko @ 2015-09-25 17:57 UTC (permalink / raw)
    To: linux-arm-kernel
  
  ECSPI contorller for iMX53 and iMX6 has few hardware issues in slave
  mode and (32*n+1) SPI word size handling comparing to iMX51.
  The change add possibility to detect the SPI controller is use and apply
  workarounds/limitations.
  Documentation for device tree bindings updated
  
  Signed-off-by: Anton Bondarenko <anton_bondarenko@mentor•com>
  ---
   .../devicetree/bindings/spi/fsl-imx-cspi.txt       |  2 ++
   drivers/spi/spi-imx.c                              | 36 ++++++++++++++++++++--
   2 files changed, 35 insertions(+), 3 deletions(-)
  
  diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  index 523341a..425485f 100644
  --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt
  @@ -9,6 +9,8 @@ Required properties:
     - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
     - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
     - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
  +  - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53
  +  - "fsl,imx6q-ecspi" for SPI compatible with the one integrated on i.MX6 family
   - reg : Offset and length of the register set for the device
   - interrupts : Should contain CSPI/eCSPI interrupt
   - fsl,spi-num-chipselects : Contains the number of the chipselect
  diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
  index d9b730d..41c9cef 100644
  --- a/drivers/spi/spi-imx.c
  +++ b/drivers/spi/spi-imx.c
  @@ -72,7 +72,8 @@ enum spi_imx_devtype {
   	IMX27_CSPI,
   	IMX31_CSPI,
   	IMX35_CSPI,	/* CSPI on all i.mx except above */
  -	IMX51_ECSPI,	/* ECSPI on i.mx51 and later */
  +	IMX51_ECSPI,	/* ECSPI on i.mx51 */
  +	IMX53_ECSPI,	/* ECSPI on i.mx53 and later */
   };
   
   struct spi_imx_data;
  @@ -129,9 +130,20 @@ static inline int is_imx35_cspi(struct spi_imx_data *d)
   	return d->devtype_data->devtype == IMX35_CSPI;
   }
   
  +static inline int is_imx53_ecspi(struct spi_imx_data *d)
  +{
  +	return d->devtype_data->devtype == IMX53_ECSPI;
  +}
  +
  +static inline int is_imx5x_ecspi(struct spi_imx_data *d)
  +{
  +	return d->devtype_data->devtype == IMX51_ECSPI ||
  +	       d->devtype_data->devtype == IMX53_ECSPI;
  +}
  +
   static inline unsigned spi_imx_get_fifosize(struct spi_imx_data *d)
   {
  -	return (d->devtype_data->devtype == IMX51_ECSPI) ? 64 : 8;
  +	return is_imx5x_ecspi(d) ? 64 : 8;
   }
   
   #define MXC_SPI_BUF_RX(type)						\
  @@ -680,6 +692,16 @@ static struct spi_imx_devtype_data imx51_ecspi_devtype_data = {
   	.devtype = IMX51_ECSPI,
   };
   
  +static struct spi_imx_devtype_data imx53_ecspi_devtype_data = {
  +	/* i.mx53 and later ecspi shares the functions with i.mx51 one */
  +	.intctrl = mx51_ecspi_intctrl,
  +	.config = mx51_ecspi_config,
  +	.trigger = mx51_ecspi_trigger,
  +	.rx_available = mx51_ecspi_rx_available,
  +	.reset = mx51_ecspi_reset,
  +	.devtype = IMX53_ECSPI,
  +};
  +
   static const struct platform_device_id spi_imx_devtype[] = {
   	{
   		.name = "imx1-cspi",
  @@ -697,6 +719,12 @@ static const struct platform_device_id spi_imx_devtype[] = {
   		.name = "imx35-cspi",
   		.driver_data = (kernel_ulong_t) &imx35_cspi_devtype_data,
   	}, {
  +		.name = "imx53-ecspi",
  +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  +	}, {
  +		.name = "imx6q-ecspi",
  +		.driver_data = (kernel_ulong_t)&imx53_ecspi_devtype_data,
  +	}, {
   		.name = "imx51-ecspi",
   		.driver_data = (kernel_ulong_t) &imx51_ecspi_devtype_data,
   	}, {
  @@ -710,6 +738,8 @@ static const struct of_device_id spi_imx_dt_ids[] = {
   	{ .compatible = "fsl,imx27-cspi", .data = &imx27_cspi_devtype_data, },
   	{ .compatible = "fsl,imx31-cspi", .data = &imx31_cspi_devtype_data, },
   	{ .compatible = "fsl,imx35-cspi", .data = &imx35_cspi_devtype_data, },
  +	{ .compatible = "fsl,imx53-ecspi", .data = &imx53_ecspi_devtype_data, },
  +	{ .compatible = "fsl,imx6q-ecspi", .data = &imx53_ecspi_devtype_data, },
   	{ .compatible = "fsl,imx51-ecspi", .data = &imx51_ecspi_devtype_data, },
   	{ /* sentinel */ }
   };
  @@ -1299,7 +1329,7 @@ static int spi_imx_probe(struct platform_device *pdev)
   	 * Only validated on i.mx6 now, can remove the constrain if validated on
   	 * other chips.
   	 */
  -	if (spi_imx->devtype_data == &imx51_ecspi_devtype_data &&
  +	if (is_imx5x_ecspi(spi_imx) &&
   	    spi_imx_sdma_init(&pdev->dev, spi_imx, master))
   		dev_err(&pdev->dev, "dma setup error,use pio instead\n");
   
  -- 
  2.5.2
  
  ^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2015-10-26  3:26 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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     [not found] <E1ZqY3A-0004Mt-KH@feisty.vs19.net>
2015-10-26  3:21 ` No subject Jiada Wang
2015-10-26  3:26 ` [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type Jiada Wang
2015-09-25 17:57 [PATCH v2 0/8] Improvements for SPI IMX driver for Freescale IMX53 and IMX6 families Anton Bondarenko
2015-09-25 17:57 ` [PATCH v2 4/8] spi: imx: add selection for iMX53 and iMX6 controller type Anton Bondarenko

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