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* [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
@ 2016-01-09 12:45 Mans Rullgard
  2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Mans Rullgard @ 2016-01-09 12:45 UTC (permalink / raw)
  To: Haavard Skinnemoen, Hans-Christian Egtvedt, Ludovic Desroches,
	Ulf Hansson, Arnd Bergmann, Andy Shevchenko, linux-kernel,
	linux-mmc

Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
when requesting dma chan") broke dma on AVR32 and any other boards not
using DT.  This restores a fallback mechanism for such cases.

Signed-off-by: Mans Rullgard <mans@mansr.com>
---
Changes:
- rebase onto v4.4-rc8: no change to this patch
---
 arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
 drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
 include/linux/atmel-mci.h           |  2 ++
 3 files changed, 35 insertions(+)

diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index b4cb3bd89d8a..6e906172dc33 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1321,6 +1321,21 @@ static struct clk atmel_mci0_pclk = {
 	.index		= 9,
 };
 
+static bool at32_mci_dma_filter(struct dma_chan *chan, void *pdata)
+{
+	struct mci_dma_data *sl = pdata;
+
+	if (!sl)
+		return false;
+
+	if (find_slave_dev(sl) == chan->device->dev) {
+		chan->private = slave_data_ptr(sl);
+		return true;
+	}
+
+	return false;
+}
+
 struct platform_device *__init
 at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 {
@@ -1355,6 +1370,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 	slave->sdata.dst_master = 0;
 
 	data->dma_slave = slave;
+	data->dma_filter = at32_mci_dma_filter;
 
 	if (platform_device_add_data(pdev, data,
 				sizeof(struct mci_platform_data)))
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index bf62e429f7fc..070dffc4699e 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -2280,6 +2280,23 @@ static int atmci_configure_dma(struct atmel_mci *host)
 {
 	host->dma.chan = dma_request_slave_channel_reason(&host->pdev->dev,
 							"rxtx");
+
+	if (PTR_ERR(host->dma.chan) == -ENODEV) {
+		struct mci_platform_data *pdata = host->pdev->dev.platform_data;
+		dma_cap_mask_t mask;
+
+		if (!pdata->dma_filter)
+			return -ENODEV;
+
+		dma_cap_zero(mask);
+		dma_cap_set(DMA_SLAVE, mask);
+
+		host->dma.chan = dma_request_channel(mask, pdata->dma_filter,
+						     pdata->dma_slave);
+		if (!host->dma.chan)
+			host->dma.chan = ERR_PTR(-ENODEV);
+	}
+
 	if (IS_ERR(host->dma.chan))
 		return PTR_ERR(host->dma.chan);
 
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 9177947bf032..e753062b9355 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -2,6 +2,7 @@
 #define __LINUX_ATMEL_MCI_H
 
 #include <linux/types.h>
+#include <linux/dmaengine.h>
 
 #define ATMCI_MAX_NR_SLOTS	2
 
@@ -37,6 +38,7 @@ struct mci_slot_pdata {
  */
 struct mci_platform_data {
 	struct mci_dma_data	*dma_slave;
+	dma_filter_fn		dma_filter;
 	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
 };
 
-- 
2.7.0

^ permalink raw reply related	[flat|nested] 10+ messages in thread

* [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data
  2016-01-09 12:45 [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Mans Rullgard
@ 2016-01-09 12:45 ` Mans Rullgard
  2016-01-09 19:32   ` Hans-Christian Noren Egtvedt
  2016-01-11 14:23   ` Ludovic Desroches
  2016-01-09 19:32 ` [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Hans-Christian Noren Egtvedt
  2016-01-11 14:22 ` Ludovic Desroches
  2 siblings, 2 replies; 10+ messages in thread
From: Mans Rullgard @ 2016-01-09 12:45 UTC (permalink / raw)
  To: Haavard Skinnemoen, Hans-Christian Egtvedt, Ludovic Desroches,
	Ulf Hansson, Arnd Bergmann, Andy Shevchenko, linux-kernel,
	linux-mmc

As struct mci_dma_data is now only used by AVR32, it is nothing but
pointless indirection.  Replace it with struct dw_dma_slave in the
AVR32 platform code and with a void pointer elsewhere.

Signed-off-by: Mans Rullgard <mans@mansr.com>
---
Changes:
- rebase onto v4.4-rc8: some members of struct dw_dma_slave had been
  renamed in an unsubmitted patch
---
 arch/avr32/mach-at32ap/at32ap700x.c         | 21 ++++++++++-----------
 drivers/mmc/host/atmel-mci.c                |  1 -
 include/linux/atmel-mci.h                   |  2 +-
 include/linux/platform_data/mmc-atmel-mci.h | 22 ----------------------
 4 files changed, 11 insertions(+), 35 deletions(-)
 delete mode 100644 include/linux/platform_data/mmc-atmel-mci.h

diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 6e906172dc33..bf445aa48282 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -17,7 +17,6 @@
 #include <linux/spi/spi.h>
 #include <linux/usb/atmel_usba_udc.h>
 
-#include <linux/platform_data/mmc-atmel-mci.h>
 #include <linux/atmel-mci.h>
 
 #include <asm/io.h>
@@ -1323,13 +1322,13 @@ static struct clk atmel_mci0_pclk = {
 
 static bool at32_mci_dma_filter(struct dma_chan *chan, void *pdata)
 {
-	struct mci_dma_data *sl = pdata;
+	struct dw_dma_slave *sl = pdata;
 
 	if (!sl)
 		return false;
 
-	if (find_slave_dev(sl) == chan->device->dev) {
-		chan->private = slave_data_ptr(sl);
+	if (sl->dma_dev == chan->device->dev) {
+		chan->private = sl;
 		return true;
 	}
 
@@ -1340,7 +1339,7 @@ struct platform_device *__init
 at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 {
 	struct platform_device		*pdev;
-	struct mci_dma_data	        *slave;
+	struct dw_dma_slave	        *slave;
 	u32				pioa_mask;
 	u32				piob_mask;
 
@@ -1359,15 +1358,15 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
 				ARRAY_SIZE(atmel_mci0_resource)))
 		goto fail;
 
-	slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL);
+	slave = kzalloc(sizeof(*slave), GFP_KERNEL);
 	if (!slave)
 		goto fail;
 
-	slave->sdata.dma_dev = &dw_dmac0_device.dev;
-	slave->sdata.src_id = 0;
-	slave->sdata.dst_id = 1;
-	slave->sdata.src_master = 1;
-	slave->sdata.dst_master = 0;
+	slave->dma_dev = &dw_dmac0_device.dev;
+	slave->src_id = 0;
+	slave->dst_id = 1;
+	slave->src_master = 1;
+	slave->dst_master = 0;
 
 	data->dma_slave = slave;
 	data->dma_filter = at32_mci_dma_filter;
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 070dffc4699e..97af84d4cdf0 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -29,7 +29,6 @@
 #include <linux/slab.h>
 #include <linux/stat.h>
 #include <linux/types.h>
-#include <linux/platform_data/mmc-atmel-mci.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/sdio.h>
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index e753062b9355..42a9e1884842 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -37,7 +37,7 @@ struct mci_slot_pdata {
  * @slot: Per-slot configuration data.
  */
 struct mci_platform_data {
-	struct mci_dma_data	*dma_slave;
+	void			*dma_slave;
 	dma_filter_fn		dma_filter;
 	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
 };
diff --git a/include/linux/platform_data/mmc-atmel-mci.h b/include/linux/platform_data/mmc-atmel-mci.h
deleted file mode 100644
index 399a2d5a14bd..000000000000
--- a/include/linux/platform_data/mmc-atmel-mci.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef __MMC_ATMEL_MCI_H
-#define __MMC_ATMEL_MCI_H
-
-#include <linux/platform_data/dma-atmel.h>
-#include <linux/platform_data/dma-dw.h>
-
-/**
- * struct mci_dma_data - DMA data for MCI interface
- */
-struct mci_dma_data {
-#ifdef CONFIG_ARM
-	struct at_dma_slave     sdata;
-#else
-	struct dw_dma_slave     sdata;
-#endif
-};
-
-/* accessor macros */
-#define	slave_data_ptr(s)	(&(s)->sdata)
-#define find_slave_dev(s)	((s)->sdata.dma_dev)
-
-#endif /* __MMC_ATMEL_MCI_H */
-- 
2.7.0


^ permalink raw reply related	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
  2016-01-09 12:45 [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Mans Rullgard
  2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
@ 2016-01-09 19:32 ` Hans-Christian Noren Egtvedt
  2016-01-14 12:07   ` Ulf Hansson
  2016-01-11 14:22 ` Ludovic Desroches
  2 siblings, 1 reply; 10+ messages in thread
From: Hans-Christian Noren Egtvedt @ 2016-01-09 19:32 UTC (permalink / raw)
  To: Mans Rullgard
  Cc: Haavard Skinnemoen, Ludovic Desroches, Ulf Hansson, Arnd Bergmann,
	Andy Shevchenko, linux-kernel, linux-mmc

Around Sat 09 Jan 2016 12:45:10 +0000 or thereabout, Mans Rullgard wrote:
> Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
> when requesting dma chan") broke dma on AVR32 and any other boards not
> using DT.  This restores a fallback mechanism for such cases.
> 
> Signed-off-by: Mans Rullgard <mans@mansr.com>
> ---
> Changes:
> - rebase onto v4.4-rc8: no change to this patch
> ---
>  arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
>  drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
>  include/linux/atmel-mci.h           |  2 ++
>  3 files changed, 35 insertions(+)

<snipp diff>

Thank you for the patch. I have added this to the for-linux branch in the
linux-avr32 tree.

Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>

-- 
Best regards, HC

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data
  2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
@ 2016-01-09 19:32   ` Hans-Christian Noren Egtvedt
  2016-01-14 12:10     ` Ulf Hansson
  2016-01-11 14:23   ` Ludovic Desroches
  1 sibling, 1 reply; 10+ messages in thread
From: Hans-Christian Noren Egtvedt @ 2016-01-09 19:32 UTC (permalink / raw)
  To: Mans Rullgard
  Cc: Haavard Skinnemoen, Ludovic Desroches, Ulf Hansson, Arnd Bergmann,
	Andy Shevchenko, linux-kernel, linux-mmc

Around Sat 09 Jan 2016 12:45:11 +0000 or thereabout, Mans Rullgard wrote:
> As struct mci_dma_data is now only used by AVR32, it is nothing but
> pointless indirection.  Replace it with struct dw_dma_slave in the
> AVR32 platform code and with a void pointer elsewhere.
> 
> Signed-off-by: Mans Rullgard <mans@mansr.com>
> ---
> Changes:
> - rebase onto v4.4-rc8: some members of struct dw_dma_slave had been
>   renamed in an unsubmitted patch
> ---
>  arch/avr32/mach-at32ap/at32ap700x.c         | 21 ++++++++++-----------
>  drivers/mmc/host/atmel-mci.c                |  1 -
>  include/linux/atmel-mci.h                   |  2 +-
>  include/linux/platform_data/mmc-atmel-mci.h | 22 ----------------------
>  4 files changed, 11 insertions(+), 35 deletions(-)
>  delete mode 100644 include/linux/platform_data/mmc-atmel-mci.h

<snipp diff>

Thank you for the patch. I have added this to my for-linus branch in the
linux-avr32 tree.

Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>

-- 
Best regards, HC.

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
  2016-01-09 12:45 [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Mans Rullgard
  2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
  2016-01-09 19:32 ` [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Hans-Christian Noren Egtvedt
@ 2016-01-11 14:22 ` Ludovic Desroches
  2 siblings, 0 replies; 10+ messages in thread
From: Ludovic Desroches @ 2016-01-11 14:22 UTC (permalink / raw)
  To: Mans Rullgard
  Cc: Haavard Skinnemoen, Hans-Christian Egtvedt, Ludovic Desroches,
	Ulf Hansson, Arnd Bergmann, Andy Shevchenko, linux-kernel,
	linux-mmc

Hi Mans,

On Sat, Jan 09, 2016 at 12:45:10PM +0000, Mans Rullgard wrote:
> Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
> when requesting dma chan") broke dma on AVR32 and any other boards not
> using DT.  This restores a fallback mechanism for such cases.
> 
> Signed-off-by: Mans Rullgard <mans@mansr.com>

Thanks I submitted a draft (I have no AVR board) to fix that some time ago but
I get no feedback.

I would have split this patch to get one for mmc subsystem and one for
avr but it is up to maintainers to discuss about that.

Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>

Regards

Ludovic

> ---
> Changes:
> - rebase onto v4.4-rc8: no change to this patch
> ---
>  arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
>  drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
>  include/linux/atmel-mci.h           |  2 ++
>  3 files changed, 35 insertions(+)
> 
> diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
> index b4cb3bd89d8a..6e906172dc33 100644
> --- a/arch/avr32/mach-at32ap/at32ap700x.c
> +++ b/arch/avr32/mach-at32ap/at32ap700x.c
> @@ -1321,6 +1321,21 @@ static struct clk atmel_mci0_pclk = {
>  	.index		= 9,
>  };
>  
> +static bool at32_mci_dma_filter(struct dma_chan *chan, void *pdata)
> +{
> +	struct mci_dma_data *sl = pdata;
> +
> +	if (!sl)
> +		return false;
> +
> +	if (find_slave_dev(sl) == chan->device->dev) {
> +		chan->private = slave_data_ptr(sl);
> +		return true;
> +	}
> +
> +	return false;
> +}
> +
>  struct platform_device *__init
>  at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
>  {
> @@ -1355,6 +1370,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
>  	slave->sdata.dst_master = 0;
>  
>  	data->dma_slave = slave;
> +	data->dma_filter = at32_mci_dma_filter;
>  
>  	if (platform_device_add_data(pdev, data,
>  				sizeof(struct mci_platform_data)))
> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> index bf62e429f7fc..070dffc4699e 100644
> --- a/drivers/mmc/host/atmel-mci.c
> +++ b/drivers/mmc/host/atmel-mci.c
> @@ -2280,6 +2280,23 @@ static int atmci_configure_dma(struct atmel_mci *host)
>  {
>  	host->dma.chan = dma_request_slave_channel_reason(&host->pdev->dev,
>  							"rxtx");
> +
> +	if (PTR_ERR(host->dma.chan) == -ENODEV) {
> +		struct mci_platform_data *pdata = host->pdev->dev.platform_data;
> +		dma_cap_mask_t mask;
> +
> +		if (!pdata->dma_filter)
> +			return -ENODEV;
> +
> +		dma_cap_zero(mask);
> +		dma_cap_set(DMA_SLAVE, mask);
> +
> +		host->dma.chan = dma_request_channel(mask, pdata->dma_filter,
> +						     pdata->dma_slave);
> +		if (!host->dma.chan)
> +			host->dma.chan = ERR_PTR(-ENODEV);
> +	}
> +
>  	if (IS_ERR(host->dma.chan))
>  		return PTR_ERR(host->dma.chan);
>  
> diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
> index 9177947bf032..e753062b9355 100644
> --- a/include/linux/atmel-mci.h
> +++ b/include/linux/atmel-mci.h
> @@ -2,6 +2,7 @@
>  #define __LINUX_ATMEL_MCI_H
>  
>  #include <linux/types.h>
> +#include <linux/dmaengine.h>
>  
>  #define ATMCI_MAX_NR_SLOTS	2
>  
> @@ -37,6 +38,7 @@ struct mci_slot_pdata {
>   */
>  struct mci_platform_data {
>  	struct mci_dma_data	*dma_slave;
> +	dma_filter_fn		dma_filter;
>  	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
>  };
>  
> -- 
> 2.7.0
> 

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data
  2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
  2016-01-09 19:32   ` Hans-Christian Noren Egtvedt
@ 2016-01-11 14:23   ` Ludovic Desroches
  1 sibling, 0 replies; 10+ messages in thread
From: Ludovic Desroches @ 2016-01-11 14:23 UTC (permalink / raw)
  To: Mans Rullgard
  Cc: Haavard Skinnemoen, Hans-Christian Egtvedt, Ludovic Desroches,
	Ulf Hansson, Arnd Bergmann, Andy Shevchenko, linux-kernel,
	linux-mmc

On Sat, Jan 09, 2016 at 12:45:11PM +0000, Mans Rullgard wrote:
> As struct mci_dma_data is now only used by AVR32, it is nothing but
> pointless indirection.  Replace it with struct dw_dma_slave in the
> AVR32 platform code and with a void pointer elsewhere.
> 
> Signed-off-by: Mans Rullgard <mans@mansr.com>

Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>

> ---
> Changes:
> - rebase onto v4.4-rc8: some members of struct dw_dma_slave had been
>   renamed in an unsubmitted patch
> ---
>  arch/avr32/mach-at32ap/at32ap700x.c         | 21 ++++++++++-----------
>  drivers/mmc/host/atmel-mci.c                |  1 -
>  include/linux/atmel-mci.h                   |  2 +-
>  include/linux/platform_data/mmc-atmel-mci.h | 22 ----------------------
>  4 files changed, 11 insertions(+), 35 deletions(-)
>  delete mode 100644 include/linux/platform_data/mmc-atmel-mci.h
> 
> diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
> index 6e906172dc33..bf445aa48282 100644
> --- a/arch/avr32/mach-at32ap/at32ap700x.c
> +++ b/arch/avr32/mach-at32ap/at32ap700x.c
> @@ -17,7 +17,6 @@
>  #include <linux/spi/spi.h>
>  #include <linux/usb/atmel_usba_udc.h>
>  
> -#include <linux/platform_data/mmc-atmel-mci.h>
>  #include <linux/atmel-mci.h>
>  
>  #include <asm/io.h>
> @@ -1323,13 +1322,13 @@ static struct clk atmel_mci0_pclk = {
>  
>  static bool at32_mci_dma_filter(struct dma_chan *chan, void *pdata)
>  {
> -	struct mci_dma_data *sl = pdata;
> +	struct dw_dma_slave *sl = pdata;
>  
>  	if (!sl)
>  		return false;
>  
> -	if (find_slave_dev(sl) == chan->device->dev) {
> -		chan->private = slave_data_ptr(sl);
> +	if (sl->dma_dev == chan->device->dev) {
> +		chan->private = sl;
>  		return true;
>  	}
>  
> @@ -1340,7 +1339,7 @@ struct platform_device *__init
>  at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
>  {
>  	struct platform_device		*pdev;
> -	struct mci_dma_data	        *slave;
> +	struct dw_dma_slave	        *slave;
>  	u32				pioa_mask;
>  	u32				piob_mask;
>  
> @@ -1359,15 +1358,15 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
>  				ARRAY_SIZE(atmel_mci0_resource)))
>  		goto fail;
>  
> -	slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL);
> +	slave = kzalloc(sizeof(*slave), GFP_KERNEL);
>  	if (!slave)
>  		goto fail;
>  
> -	slave->sdata.dma_dev = &dw_dmac0_device.dev;
> -	slave->sdata.src_id = 0;
> -	slave->sdata.dst_id = 1;
> -	slave->sdata.src_master = 1;
> -	slave->sdata.dst_master = 0;
> +	slave->dma_dev = &dw_dmac0_device.dev;
> +	slave->src_id = 0;
> +	slave->dst_id = 1;
> +	slave->src_master = 1;
> +	slave->dst_master = 0;
>  
>  	data->dma_slave = slave;
>  	data->dma_filter = at32_mci_dma_filter;
> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> index 070dffc4699e..97af84d4cdf0 100644
> --- a/drivers/mmc/host/atmel-mci.c
> +++ b/drivers/mmc/host/atmel-mci.c
> @@ -29,7 +29,6 @@
>  #include <linux/slab.h>
>  #include <linux/stat.h>
>  #include <linux/types.h>
> -#include <linux/platform_data/mmc-atmel-mci.h>
>  
>  #include <linux/mmc/host.h>
>  #include <linux/mmc/sdio.h>
> diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
> index e753062b9355..42a9e1884842 100644
> --- a/include/linux/atmel-mci.h
> +++ b/include/linux/atmel-mci.h
> @@ -37,7 +37,7 @@ struct mci_slot_pdata {
>   * @slot: Per-slot configuration data.
>   */
>  struct mci_platform_data {
> -	struct mci_dma_data	*dma_slave;
> +	void			*dma_slave;
>  	dma_filter_fn		dma_filter;
>  	struct mci_slot_pdata	slot[ATMCI_MAX_NR_SLOTS];
>  };
> diff --git a/include/linux/platform_data/mmc-atmel-mci.h b/include/linux/platform_data/mmc-atmel-mci.h
> deleted file mode 100644
> index 399a2d5a14bd..000000000000
> --- a/include/linux/platform_data/mmc-atmel-mci.h
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -#ifndef __MMC_ATMEL_MCI_H
> -#define __MMC_ATMEL_MCI_H
> -
> -#include <linux/platform_data/dma-atmel.h>
> -#include <linux/platform_data/dma-dw.h>
> -
> -/**
> - * struct mci_dma_data - DMA data for MCI interface
> - */
> -struct mci_dma_data {
> -#ifdef CONFIG_ARM
> -	struct at_dma_slave     sdata;
> -#else
> -	struct dw_dma_slave     sdata;
> -#endif
> -};
> -
> -/* accessor macros */
> -#define	slave_data_ptr(s)	(&(s)->sdata)
> -#define find_slave_dev(s)	((s)->sdata.dma_dev)
> -
> -#endif /* __MMC_ATMEL_MCI_H */
> -- 
> 2.7.0
> 

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
  2016-01-09 19:32 ` [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Hans-Christian Noren Egtvedt
@ 2016-01-14 12:07   ` Ulf Hansson
  2016-01-14 12:43     ` Hans-Christian Noren Egtvedt
  0 siblings, 1 reply; 10+ messages in thread
From: Ulf Hansson @ 2016-01-14 12:07 UTC (permalink / raw)
  To: Hans-Christian Noren Egtvedt
  Cc: Mans Rullgard, Haavard Skinnemoen, Ludovic Desroches,
	Arnd Bergmann, Andy Shevchenko, linux-kernel@vger.kernel.org,
	linux-mmc

On 9 January 2016 at 20:32, Hans-Christian Noren Egtvedt
<egtvedt@samfundet.no> wrote:
> Around Sat 09 Jan 2016 12:45:10 +0000 or thereabout, Mans Rullgard wrote:
>> Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
>> when requesting dma chan") broke dma on AVR32 and any other boards not
>> using DT.  This restores a fallback mechanism for such cases.
>>
>> Signed-off-by: Mans Rullgard <mans@mansr.com>
>> ---
>> Changes:
>> - rebase onto v4.4-rc8: no change to this patch
>> ---
>>  arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
>>  drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
>>  include/linux/atmel-mci.h           |  2 ++
>>  3 files changed, 35 insertions(+)
>
> <snipp diff>
>
> Thank you for the patch. I have added this to the for-linux branch in the
> linux-avr32 tree.

What does that mean? Do you intend to send this as a fix for 4.5 rc?

If so, you have my ack for it!

Acked-by: Ulf Hansson <ulf.hansson@linaro.org>

Kind regards
Uffe

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data
  2016-01-09 19:32   ` Hans-Christian Noren Egtvedt
@ 2016-01-14 12:10     ` Ulf Hansson
  0 siblings, 0 replies; 10+ messages in thread
From: Ulf Hansson @ 2016-01-14 12:10 UTC (permalink / raw)
  To: Hans-Christian Noren Egtvedt
  Cc: Mans Rullgard, Haavard Skinnemoen, Ludovic Desroches,
	Arnd Bergmann, Andy Shevchenko, linux-kernel@vger.kernel.org,
	linux-mmc

On 9 January 2016 at 20:32, Hans-Christian Noren Egtvedt
<egtvedt@samfundet.no> wrote:
> Around Sat 09 Jan 2016 12:45:11 +0000 or thereabout, Mans Rullgard wrote:
>> As struct mci_dma_data is now only used by AVR32, it is nothing but
>> pointless indirection.  Replace it with struct dw_dma_slave in the
>> AVR32 platform code and with a void pointer elsewhere.
>>
>> Signed-off-by: Mans Rullgard <mans@mansr.com>
>> ---
>> Changes:
>> - rebase onto v4.4-rc8: some members of struct dw_dma_slave had been
>>   renamed in an unsubmitted patch
>> ---
>>  arch/avr32/mach-at32ap/at32ap700x.c         | 21 ++++++++++-----------
>>  drivers/mmc/host/atmel-mci.c                |  1 -
>>  include/linux/atmel-mci.h                   |  2 +-
>>  include/linux/platform_data/mmc-atmel-mci.h | 22 ----------------------
>>  4 files changed, 11 insertions(+), 35 deletions(-)
>>  delete mode 100644 include/linux/platform_data/mmc-atmel-mci.h
>
> <snipp diff>
>
> Thank you for the patch. I have added this to my for-linus branch in the
> linux-avr32 tree.

Again, I suppose that means you will send this as fix for 4.5 rc?

Acked-by: Ulf Hansson <ulf.hansson@linaro.org>

>
> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
>
> --
> Best regards, HC.

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
  2016-01-14 12:07   ` Ulf Hansson
@ 2016-01-14 12:43     ` Hans-Christian Noren Egtvedt
  2016-01-14 13:29       ` Ulf Hansson
  0 siblings, 1 reply; 10+ messages in thread
From: Hans-Christian Noren Egtvedt @ 2016-01-14 12:43 UTC (permalink / raw)
  To: Ulf Hansson
  Cc: Mans Rullgard, Haavard Skinnemoen, Ludovic Desroches,
	Arnd Bergmann, Andy Shevchenko, linux-kernel@vger.kernel.org,
	linux-mmc

Around Thu 14 Jan 2016 13:07:57 +0100 or thereabout, Ulf Hansson wrote:
> On 9 January 2016 at 20:32, Hans-Christian Noren Egtvedt
> <egtvedt@samfundet.no> wrote:
>> Around Sat 09 Jan 2016 12:45:10 +0000 or thereabout, Mans Rullgard wrote:
>>> Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
>>> when requesting dma chan") broke dma on AVR32 and any other boards not
>>> using DT.  This restores a fallback mechanism for such cases.
>>>
>>> Signed-off-by: Mans Rullgard <mans@mansr.com>
>>> ---
>>> Changes:
>>> - rebase onto v4.4-rc8: no change to this patch
>>> ---
>>>  arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
>>>  drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
>>>  include/linux/atmel-mci.h           |  2 ++
>>>  3 files changed, 35 insertions(+)
>>
>> <snipp diff>
>>
>> Thank you for the patch. I have added this to the for-linux branch in the
>> linux-avr32 tree.
> 
> What does that mean? Do you intend to send this as a fix for 4.5 rc?
> 
> If so, you have my ack for it!
> 
> Acked-by: Ulf Hansson <ulf.hansson@linaro.org>

Thank you. I might have been a bit quick to append it to my tree, as it
mostly touches things outside of arch/avr32. I have not asked Linus to pull
yet.

I can append your Acked-by to #1 and #2 in the series and push through my
tree if you are fine with that.

https://git.kernel.org/cgit/linux/kernel/git/egtvedt/linux-avr32.git/log/?h=for-linus

-- 
Best regards, Hans-Christian Egtvedt

^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32
  2016-01-14 12:43     ` Hans-Christian Noren Egtvedt
@ 2016-01-14 13:29       ` Ulf Hansson
  0 siblings, 0 replies; 10+ messages in thread
From: Ulf Hansson @ 2016-01-14 13:29 UTC (permalink / raw)
  To: Hans-Christian Noren Egtvedt
  Cc: Mans Rullgard, Haavard Skinnemoen, Ludovic Desroches,
	Arnd Bergmann, Andy Shevchenko, linux-kernel@vger.kernel.org,
	linux-mmc

On 14 January 2016 at 13:43, Hans-Christian Noren Egtvedt
<egtvedt@samfundet.no> wrote:
> Around Thu 14 Jan 2016 13:07:57 +0100 or thereabout, Ulf Hansson wrote:
>> On 9 January 2016 at 20:32, Hans-Christian Noren Egtvedt
>> <egtvedt@samfundet.no> wrote:
>>> Around Sat 09 Jan 2016 12:45:10 +0000 or thereabout, Mans Rullgard wrote:
>>>> Commit ecb89f2f5f3e7 ("mmc: atmel-mci: remove compat for non DT board
>>>> when requesting dma chan") broke dma on AVR32 and any other boards not
>>>> using DT.  This restores a fallback mechanism for such cases.
>>>>
>>>> Signed-off-by: Mans Rullgard <mans@mansr.com>
>>>> ---
>>>> Changes:
>>>> - rebase onto v4.4-rc8: no change to this patch
>>>> ---
>>>>  arch/avr32/mach-at32ap/at32ap700x.c | 16 ++++++++++++++++
>>>>  drivers/mmc/host/atmel-mci.c        | 17 +++++++++++++++++
>>>>  include/linux/atmel-mci.h           |  2 ++
>>>>  3 files changed, 35 insertions(+)
>>>
>>> <snipp diff>
>>>
>>> Thank you for the patch. I have added this to the for-linux branch in the
>>> linux-avr32 tree.
>>
>> What does that mean? Do you intend to send this as a fix for 4.5 rc?
>>
>> If so, you have my ack for it!
>>
>> Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
>
> Thank you. I might have been a bit quick to append it to my tree, as it
> mostly touches things outside of arch/avr32. I have not asked Linus to pull
> yet.
>
> I can append your Acked-by to #1 and #2 in the series and push through my
> tree if you are fine with that.

Great, thanks!

Kind regards
Uffe

>
> https://git.kernel.org/cgit/linux/kernel/git/egtvedt/linux-avr32.git/log/?h=for-linus
>
> --
> Best regards, Hans-Christian Egtvedt

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2016-01-14 13:29 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-01-09 12:45 [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Mans Rullgard
2016-01-09 12:45 ` [PATCH v2 2/2] mmc: atmel: get rid of struct mci_dma_data Mans Rullgard
2016-01-09 19:32   ` Hans-Christian Noren Egtvedt
2016-01-14 12:10     ` Ulf Hansson
2016-01-11 14:23   ` Ludovic Desroches
2016-01-09 19:32 ` [PATCH v2 1/2] mmc: atmel-mci: restore dma on AVR32 Hans-Christian Noren Egtvedt
2016-01-14 12:07   ` Ulf Hansson
2016-01-14 12:43     ` Hans-Christian Noren Egtvedt
2016-01-14 13:29       ` Ulf Hansson
2016-01-11 14:22 ` Ludovic Desroches

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