[PATCH v1 1/8] spi: dw: Zero DMA Tx and Rx configurations on stack

[PATCH v1 1/8] spi: dw: Zero DMA Tx and Rx configurations on stack

[Andy Shevchenko]

Some DMA controller drivers do not tolerate non-zero values in
the DMA configuration structures. Zero them to avoid issues with
such DMA controller drivers. Even despite above this is a good
practice per se.

Fixes: 7063c0d942a1 ("spi/dw_spi: add DMA support")
Cc: Feng Tang <feng.tang@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 9cc010e9737e8..86d9f79267f05 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -147,6 +147,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws,
 	if (!xfer->tx_buf)
 		return NULL;
 
+	memset(&txconf, 0, sizeof(txconf));
 	txconf.direction = DMA_MEM_TO_DEV;
 	txconf.dst_addr = dws->dma_addr;
 	txconf.dst_maxburst = 16;
@@ -193,6 +194,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws,
 	if (!xfer->rx_buf)
 		return NULL;
 
+	memset(&rxconf, 0, sizeof(rxconf));
 	rxconf.direction = DMA_DEV_TO_MEM;
 	rxconf.src_addr = dws->dma_addr;
 	rxconf.src_maxburst = 16;
-- 
2.26.2

[PATCH v1 2/8] spi: dw: Remove unused variable in CR0 configuring hooks

[Andy Shevchenko]

After enabling new IP support in the driver couple of variables
were left unused compiler is not happy about:

.../spi-dw.c: In function ‘dw_spi_update_cr0’:
.../spi-dw.c:264:17: warning: unused variable ‘dws’ [-Wunused-variable]
  264 |  struct dw_spi *dws = spi_controller_get_devdata(master);
      |                 ^~~
.../spi-dw.c: In function ‘dw_spi_update_cr0_v1_01a’:
.../spi-dw.c:285:17: warning: unused variable ‘dws’ [-Wunused-variable]
  285 |  struct dw_spi *dws = spi_controller_get_devdata(master);
      |                 ^~~

Drop them for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 240a61b66a066..6e56a64ccc557 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -261,7 +261,6 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
 u32 dw_spi_update_cr0(struct spi_controller *master, struct spi_device *spi,
 		      struct spi_transfer *transfer)
 {
-	struct dw_spi *dws = spi_controller_get_devdata(master);
 	struct chip_data *chip = spi_get_ctldata(spi);
 	u32 cr0;
 
@@ -282,7 +281,6 @@ u32 dw_spi_update_cr0_v1_01a(struct spi_controller *master,
 			     struct spi_device *spi,
 			     struct spi_transfer *transfer)
 {
-	struct dw_spi *dws = spi_controller_get_devdata(master);
 	struct chip_data *chip = spi_get_ctldata(spi);
 	u32 cr0;
 
-- 
2.26.2

[PATCH v1 3/8] spi: dw: Move interrupt.h to spi-dw.h who is user of it

[Andy Shevchenko]

The actual user of interrupt.h is spi-dw.h and not bus drivers.
Move header there.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mmio.c | 1 -
 drivers/spi/spi-dw-pci.c  | 1 -
 drivers/spi/spi-dw.h      | 1 +
 3 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index abd3bb5e52dba..fc3577b07a1ee 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -7,7 +7,6 @@
 
 #include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 12c131b5fb4ec..172a9f2996316 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -5,7 +5,6 @@
  * Copyright (c) 2009, 2014 Intel Corporation.
  */
 
-#include <linux/interrupt.h>
 #include <linux/pci.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 8fe724279d158..aeed49b4a444a 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -2,6 +2,7 @@
 #ifndef DW_SPI_HEADER_H
 #define DW_SPI_HEADER_H
 
+#include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/scatterlist.h>
 
-- 
2.26.2

[PATCH v1 4/8] spi: dw: Downgrade interrupt.h to irqreturn.h where appropriate

[Andy Shevchenko]

spi-dw-mid.c along with spi-dw.h are direct users of irqreturn.h
and nothing else is being used from interrupt.h. So, switch them
to use the former instead of latter one.

While here, move the header under #ifdef CONFIG_SPI_DW_MID_DMA
in spi-dw-mid.c.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 2 +-
 drivers/spi/spi-dw.h     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 86d9f79267f05..02defb68618d9 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -7,7 +7,6 @@
 
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
-#include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/types.h>
@@ -15,6 +14,7 @@
 #include "spi-dw.h"
 
 #ifdef CONFIG_SPI_DW_MID_DMA
+#include <linux/irqreturn.h>
 #include <linux/pci.h>
 #include <linux/platform_data/dma-dw.h>
 
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index aeed49b4a444a..5e1e78210d8d4 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -2,7 +2,7 @@
 #ifndef DW_SPI_HEADER_H
 #define DW_SPI_HEADER_H
 
-#include <linux/interrupt.h>
+#include <linux/irqreturn.h>
 #include <linux/io.h>
 #include <linux/scatterlist.h>
 
-- 
2.26.2

[PATCH v1 5/8] spi: dw: Move few headers under #ifdef CONFIG_SPI_DW_MID_DMA

[Andy Shevchenko]

There is no user of few headers without CONFIG_SPI_DW_MID_DMA being set.
Move them under condition.

While at it, remove unused slab.h there.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 02defb68618d9..64523e68490d7 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -5,15 +5,14 @@
  * Copyright (c) 2009, 2014 Intel Corporation.
  */
 
-#include <linux/dma-mapping.h>
-#include <linux/dmaengine.h>
-#include <linux/slab.h>
 #include <linux/spi/spi.h>
 #include <linux/types.h>
 
 #include "spi-dw.h"
 
 #ifdef CONFIG_SPI_DW_MID_DMA
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
 #include <linux/irqreturn.h>
 #include <linux/pci.h>
 #include <linux/platform_data/dma-dw.h>
-- 
2.26.2

[PATCH v1 6/8] spi: dw: Add 'mfld' suffix to Intel Medfield related routines

[Andy Shevchenko]

In order to prepare driver for the extension to support newer hardware,
add 'mfld' suffix to some related functions.

While here, move DMA parameters assignment under existing #ifdef
CONFIG_SPI_DW_MID_DMA.

There is no functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 24 ++++++++++++++----------
 drivers/spi/spi-dw-pci.c |  4 ++--
 drivers/spi/spi-dw.h     |  3 ++-
 3 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 64523e68490d7..13b548915c8f0 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -34,7 +34,7 @@ static bool mid_spi_dma_chan_filter(struct dma_chan *chan, void *param)
 	return true;
 }
 
-static int mid_spi_dma_init(struct dw_spi *dws)
+static int mid_spi_dma_init_mfld(struct dw_spi *dws)
 {
 	struct pci_dev *dma_dev;
 	struct dw_dma_slave *tx = dws->dma_tx;
@@ -276,14 +276,23 @@ static void mid_spi_dma_stop(struct dw_spi *dws)
 	}
 }
 
-static const struct dw_spi_dma_ops mid_dma_ops = {
-	.dma_init	= mid_spi_dma_init,
+static const struct dw_spi_dma_ops mfld_dma_ops = {
+	.dma_init	= mid_spi_dma_init_mfld,
 	.dma_exit	= mid_spi_dma_exit,
 	.dma_setup	= mid_spi_dma_setup,
 	.can_dma	= mid_spi_can_dma,
 	.dma_transfer	= mid_spi_dma_transfer,
 	.dma_stop	= mid_spi_dma_stop,
 };
+
+static void dw_spi_mid_setup_dma_mfld(struct dw_spi *dws)
+{
+	dws->dma_tx = &mid_dma_tx;
+	dws->dma_rx = &mid_dma_rx;
+	dws->dma_ops = &mfld_dma_ops;
+}
+#else	/* CONFIG_SPI_DW_MID_DMA */
+static inline void dw_spi_mid_setup_dma_mfld(struct dw_spi *dws) {}
 #endif
 
 /* Some specific info for SPI0 controller on Intel MID */
@@ -297,7 +306,7 @@ static const struct dw_spi_dma_ops mid_dma_ops = {
 #define CLK_SPI_CDIV_MASK	0x00000e00
 #define CLK_SPI_DISABLE_OFFSET	8
 
-int dw_spi_mid_init(struct dw_spi *dws)
+int dw_spi_mid_init_mfld(struct dw_spi *dws)
 {
 	void __iomem *clk_reg;
 	u32 clk_cdiv;
@@ -314,14 +323,9 @@ int dw_spi_mid_init(struct dw_spi *dws)
 
 	iounmap(clk_reg);
 
-#ifdef CONFIG_SPI_DW_MID_DMA
-	dws->dma_tx = &mid_dma_tx;
-	dws->dma_rx = &mid_dma_rx;
-	dws->dma_ops = &mid_dma_ops;
-#endif
-
 	/* Register hook to configure CTRLR0 */
 	dws->update_cr0 = dw_spi_update_cr0;
 
+	dw_spi_mid_setup_dma_mfld(dws);
 	return 0;
 }
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 172a9f2996316..dd59df5122ee7 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -23,13 +23,13 @@ struct spi_pci_desc {
 };
 
 static struct spi_pci_desc spi_pci_mid_desc_1 = {
-	.setup = dw_spi_mid_init,
+	.setup = dw_spi_mid_init_mfld,
 	.num_cs = 5,
 	.bus_num = 0,
 };
 
 static struct spi_pci_desc spi_pci_mid_desc_2 = {
-	.setup = dw_spi_mid_init,
+	.setup = dw_spi_mid_init_mfld,
 	.num_cs = 2,
 	.bus_num = 1,
 };
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 5e1e78210d8d4..b7e3f0ebba44f 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -260,5 +260,6 @@ extern u32 dw_spi_update_cr0_v1_01a(struct spi_controller *master,
 				    struct spi_transfer *transfer);
 
 /* platform related setup */
-extern int dw_spi_mid_init(struct dw_spi *dws); /* Intel MID platforms */
+extern int dw_spi_mid_init_mfld(struct dw_spi *dws);
+
 #endif /* DW_SPI_HEADER_H */
-- 
2.26.2

[PATCH v1 7/8] spi: dw: Propagate struct device pointer to ->dma_init() callback

[Andy Shevchenko]

In some cases, one of which is coming soon, we would like to have
a struct device pointer to request DMA channel. For this purpose
propagate it to ->dma_init() callback in DMA ops.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 2 +-
 drivers/spi/spi-dw.c     | 2 +-
 drivers/spi/spi-dw.h     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 13b548915c8f0..d73aa4ae644d5 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -34,7 +34,7 @@ static bool mid_spi_dma_chan_filter(struct dma_chan *chan, void *param)
 	return true;
 }
 
-static int mid_spi_dma_init_mfld(struct dw_spi *dws)
+static int mid_spi_dma_init_mfld(struct device *dev, struct dw_spi *dws)
 {
 	struct pci_dev *dma_dev;
 	struct dw_dma_slave *tx = dws->dma_tx;
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 6e56a64ccc557..b9f651e9ca028 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -506,7 +506,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
 	spi_hw_init(dev, dws);
 
 	if (dws->dma_ops && dws->dma_ops->dma_init) {
-		ret = dws->dma_ops->dma_init(dws);
+		ret = dws->dma_ops->dma_init(dev, dws);
 		if (ret) {
 			dev_warn(dev, "DMA init failed\n");
 			dws->dma_inited = 0;
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index b7e3f0ebba44f..642f0be642e56 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -100,7 +100,7 @@ enum dw_ssi_type {
 
 struct dw_spi;
 struct dw_spi_dma_ops {
-	int (*dma_init)(struct dw_spi *dws);
+	int (*dma_init)(struct device *dev, struct dw_spi *dws);
 	void (*dma_exit)(struct dw_spi *dws);
 	int (*dma_setup)(struct dw_spi *dws, struct spi_transfer *xfer);
 	bool (*can_dma)(struct spi_controller *master, struct spi_device *spi,
-- 
2.26.2

[PATCH v1 8/8] spi: dw: Add Elkhart Lake PSE DMA support

[Andy Shevchenko]

From: Jarkko Nikula <jarkko.nikula@linux.intel.com>

Elkhart Lake PSE SPI is capable to utilize PSE DMA engine which is described
in ACPI. With help of acpi-dma module the support becomes a generic one.

Thus, add Elkhart Lake PSE DMA support and generic DMA hooks in SPI DesignWare
driver.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi-dw-mid.c | 44 ++++++++++++++++++++++++++++++++++++++++
 drivers/spi/spi-dw-pci.c |  1 +
 drivers/spi/spi-dw.h     |  1 +
 3 files changed, 46 insertions(+)

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index d73aa4ae644d5..f3c85f92ef12c 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -75,6 +75,24 @@ static int mid_spi_dma_init_mfld(struct device *dev, struct dw_spi *dws)
 	return -EBUSY;
 }
 
+static int mid_spi_dma_init_generic(struct device *dev, struct dw_spi *dws)
+{
+	dws->rxchan = dma_request_slave_channel(dev, "rx");
+	if (!dws->rxchan)
+		return -ENODEV;
+	dws->master->dma_rx = dws->rxchan;
+
+	dws->txchan = dma_request_slave_channel(dev, "tx");
+	if (!dws->txchan) {
+		dma_release_channel(dws->rxchan);
+		return -ENODEV;
+	}
+	dws->master->dma_tx = dws->txchan;
+
+	dws->dma_inited = 1;
+	return 0;
+}
+
 static void mid_spi_dma_exit(struct dw_spi *dws)
 {
 	if (!dws->dma_inited)
@@ -291,8 +309,25 @@ static void dw_spi_mid_setup_dma_mfld(struct dw_spi *dws)
 	dws->dma_rx = &mid_dma_rx;
 	dws->dma_ops = &mfld_dma_ops;
 }
+
+static const struct dw_spi_dma_ops generic_dma_ops = {
+	.dma_init	= mid_spi_dma_init_generic,
+	.dma_exit	= mid_spi_dma_exit,
+	.dma_setup	= mid_spi_dma_setup,
+	.can_dma	= mid_spi_can_dma,
+	.dma_transfer	= mid_spi_dma_transfer,
+	.dma_stop	= mid_spi_dma_stop,
+};
+
+static void dw_spi_mid_setup_dma_generic(struct dw_spi *dws)
+{
+	dws->dma_tx = &mid_dma_tx;
+	dws->dma_rx = &mid_dma_rx;
+	dws->dma_ops = &generic_dma_ops;
+}
 #else	/* CONFIG_SPI_DW_MID_DMA */
 static inline void dw_spi_mid_setup_dma_mfld(struct dw_spi *dws) {}
+static inline void dw_spi_mid_setup_dma_generic(struct dw_spi *dws) {}
 #endif
 
 /* Some specific info for SPI0 controller on Intel MID */
@@ -329,3 +364,12 @@ int dw_spi_mid_init_mfld(struct dw_spi *dws)
 	dw_spi_mid_setup_dma_mfld(dws);
 	return 0;
 }
+
+int dw_spi_mid_init_generic(struct dw_spi *dws)
+{
+	/* Register hook to configure CTRLR0 */
+	dws->update_cr0 = dw_spi_update_cr0;
+
+	dw_spi_mid_setup_dma_generic(dws);
+	return 0;
+}
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index dd59df5122ee7..dde54a918b5d2 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -35,6 +35,7 @@ static struct spi_pci_desc spi_pci_mid_desc_2 = {
 };
 
 static struct spi_pci_desc spi_pci_ehl_desc = {
+	.setup = dw_spi_mid_init_generic,
 	.num_cs = 2,
 	.bus_num = -1,
 	.max_freq = 100000000,
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 642f0be642e56..490cff260a3eb 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -261,5 +261,6 @@ extern u32 dw_spi_update_cr0_v1_01a(struct spi_controller *master,
 
 /* platform related setup */
 extern int dw_spi_mid_init_mfld(struct dw_spi *dws);
+extern int dw_spi_mid_init_generic(struct dw_spi *dws);
 
 #endif /* DW_SPI_HEADER_H */
-- 
2.26.2

Re: [PATCH v1 1/8] spi: dw: Zero DMA Tx and Rx configurations on stack

[Feng Tang]

On Wed, May 06, 2020 at 06:30:18PM +0300, Andy Shevchenko wrote:
> Some DMA controller drivers do not tolerate non-zero values in
> the DMA configuration structures. Zero them to avoid issues with
> such DMA controller drivers. Even despite above this is a good
> practice per se.
> 
> Fixes: 7063c0d942a1 ("spi/dw_spi: add DMA support")
> Cc: Feng Tang <feng.tang@intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Acked-by: Feng Tang <feng.tang@intel.com>

Thanks,
Feng

> ---
>  drivers/spi/spi-dw-mid.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
> index 9cc010e9737e8..86d9f79267f05 100644
> --- a/drivers/spi/spi-dw-mid.c
> +++ b/drivers/spi/spi-dw-mid.c
> @@ -147,6 +147,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws,
>  	if (!xfer->tx_buf)
>  		return NULL;
>  
> +	memset(&txconf, 0, sizeof(txconf));
>  	txconf.direction = DMA_MEM_TO_DEV;
>  	txconf.dst_addr = dws->dma_addr;
>  	txconf.dst_maxburst = 16;
> @@ -193,6 +194,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws,
>  	if (!xfer->rx_buf)
>  		return NULL;
>  
> +	memset(&rxconf, 0, sizeof(rxconf));
>  	rxconf.direction = DMA_DEV_TO_MEM;
>  	rxconf.src_addr = dws->dma_addr;
>  	rxconf.src_maxburst = 16;
> -- 
> 2.26.2

Re: [PATCH v1 1/8] spi: dw: Zero DMA Tx and Rx configurations on stack

[Mark Brown]

On Wed, 6 May 2020 18:30:18 +0300, Andy Shevchenko wrote:
> Some DMA controller drivers do not tolerate non-zero values in
> the DMA configuration structures. Zero them to avoid issues with
> such DMA controller drivers. Even despite above this is a good
> practice per se.
> 
> Fixes: 7063c0d942a1 ("spi/dw_spi: add DMA support")
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Acked-by: Feng Tang <feng.tang@intel.com>
> Cc: Feng Tang <feng.tang@intel.com>
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.8

Thanks!

[1/8] spi: dw: Zero DMA Tx and Rx configurations on stack
      commit: 3cb97e223d277f84171cc4ccecab31e08b2ee7b5
[2/8] spi: dw: Remove unused variable in CR0 configuring hooks
      commit: d4dd6c0a404a2ed3843b4b685d6990c4438a64c0
[3/8] spi: dw: Move interrupt.h to spi-dw.h who is user of it
      commit: 0c2ce3fe4dd0b8f8dda07ea029f51ddf4c5190c2
[4/8] spi: dw: Downgrade interrupt.h to irqreturn.h where appropriate
      commit: e62a15d97b0adede829ba5b4f1c8e28f230bd8e8
[5/8] spi: dw: Move few headers under #ifdef CONFIG_SPI_DW_MID_DMA
      commit: e7940952644558e680033ae0450978445e53b423
[6/8] spi: dw: Add 'mfld' suffix to Intel Medfield related routines
      commit: 37aa8aa68492deb56f9e4c8b2d00aa5d9dae7da2
[7/8] spi: dw: Propagate struct device pointer to ->dma_init() callback
      commit: 6370ababce81911576d7c96663ae64fb84820c7b
[8/8] spi: dw: Add Elkhart Lake PSE DMA support
      commit: 22d48ad7bfacda05900c3f7b43510fc4d40d5d53

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark