dmaengine: dw: Export struct dw_dma_chip_pdata for wider use

We are expecting some devices can be enumerated either as PCI or ACPI.
Nevertheless, they will share same information, thus, provide a generic
struct dw_dma_chip_pdata for all glue drivers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20190820131546.75744-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dw/internal.h b/drivers/dma/dw/internal.h
index 1dd7a4e..df5c84e 100644 (file)
--- a/drivers/dma/dw/internal.h
+++ b/drivers/dma/dw/internal.h
@@ -23,4 +23,32 @@ int do_dw_dma_enable(struct dw_dma_chip *chip);
 
 extern bool dw_dma_filter(struct dma_chan *chan, void *param);
 
+struct dw_dma_chip_pdata {
+       const struct dw_dma_platform_data *pdata;
+       int (*probe)(struct dw_dma_chip *chip);
+       int (*remove)(struct dw_dma_chip *chip);
+       struct dw_dma_chip *chip;
+};
+
+static __maybe_unused const struct dw_dma_chip_pdata dw_dma_chip_pdata = {
+       .probe = dw_dma_probe,
+       .remove = dw_dma_remove,
+};
+
+static const struct dw_dma_platform_data idma32_pdata = {
+       .nr_channels = 8,
+       .chan_allocation_order = CHAN_ALLOCATION_ASCENDING,
+       .chan_priority = CHAN_PRIORITY_ASCENDING,
+       .block_size = 131071,
+       .nr_masters = 1,
+       .data_width = {4},
+       .multi_block = {1, 1, 1, 1, 1, 1, 1, 1},
+};
+
+static __maybe_unused const struct dw_dma_chip_pdata idma32_chip_pdata = {
+       .pdata = &idma32_pdata,
+       .probe = idma32_dma_probe,
+       .remove = idma32_dma_remove,
+};
+
 #endif /* _DMA_DW_INTERNAL_H */

diff --git a/drivers/dma/dw/pci.c b/drivers/dma/dw/pci.c
index ad6db1c..cf6e8ec 100644 (file)
--- a/drivers/dma/dw/pci.c
+++ b/drivers/dma/dw/pci.c
@@ -12,38 +12,10 @@
 
 #include "internal.h"
 
-struct dw_dma_pci_data {
-       const struct dw_dma_platform_data *pdata;
-       int (*probe)(struct dw_dma_chip *chip);
-       int (*remove)(struct dw_dma_chip *chip);
-       struct dw_dma_chip *chip;
-};
-
-static const struct dw_dma_pci_data dw_pci_data = {
-       .probe = dw_dma_probe,
-       .remove = dw_dma_remove,
-};
-
-static const struct dw_dma_platform_data idma32_pdata = {
-       .nr_channels = 8,
-       .chan_allocation_order = CHAN_ALLOCATION_ASCENDING,
-       .chan_priority = CHAN_PRIORITY_ASCENDING,
-       .block_size = 131071,
-       .nr_masters = 1,
-       .data_width = {4},
-       .multi_block = {1, 1, 1, 1, 1, 1, 1, 1},
-};
-
-static const struct dw_dma_pci_data idma32_pci_data = {
-       .pdata = &idma32_pdata,
-       .probe = idma32_dma_probe,
-       .remove = idma32_dma_remove,
-};
-
 static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
 {
-       const struct dw_dma_pci_data *drv_data = (void *)pid->driver_data;
-       struct dw_dma_pci_data *data;
+       const struct dw_dma_chip_pdata *drv_data = (void *)pid->driver_data;
+       struct dw_dma_chip_pdata *data;
        struct dw_dma_chip *chip;
        int ret;
 
@@ -95,7 +67,7 @@ static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
 
 static void dw_pci_remove(struct pci_dev *pdev)
 {
-       struct dw_dma_pci_data *data = pci_get_drvdata(pdev);
+       struct dw_dma_chip_pdata *data = pci_get_drvdata(pdev);
        struct dw_dma_chip *chip = data->chip;
        int ret;
 
@@ -108,7 +80,7 @@ static void dw_pci_remove(struct pci_dev *pdev)
 
 static int dw_pci_suspend_late(struct device *dev)
 {
-       struct dw_dma_pci_data *data = dev_get_drvdata(dev);
+       struct dw_dma_chip_pdata *data = dev_get_drvdata(dev);
        struct dw_dma_chip *chip = data->chip;
 
        return do_dw_dma_disable(chip);
@@ -116,7 +88,7 @@ static int dw_pci_suspend_late(struct device *dev)
 
 static int dw_pci_resume_early(struct device *dev)
 {
-       struct dw_dma_pci_data *data = dev_get_drvdata(dev);
+       struct dw_dma_chip_pdata *data = dev_get_drvdata(dev);
        struct dw_dma_chip *chip = data->chip;
 
        return do_dw_dma_enable(chip);
@@ -130,29 +102,29 @@ static const struct dev_pm_ops dw_pci_dev_pm_ops = {
 
 static const struct pci_device_id dw_pci_id_table[] = {
        /* Medfield (GPDMA) */
-       { PCI_VDEVICE(INTEL, 0x0827), (kernel_ulong_t)&dw_pci_data },
+       { PCI_VDEVICE(INTEL, 0x0827), (kernel_ulong_t)&dw_dma_chip_pdata },
 
        /* BayTrail */
-       { PCI_VDEVICE(INTEL, 0x0f06), (kernel_ulong_t)&dw_pci_data },
-       { PCI_VDEVICE(INTEL, 0x0f40), (kernel_ulong_t)&dw_pci_data },
+       { PCI_VDEVICE(INTEL, 0x0f06), (kernel_ulong_t)&dw_dma_chip_pdata },
+       { PCI_VDEVICE(INTEL, 0x0f40), (kernel_ulong_t)&dw_dma_chip_pdata },
 
        /* Merrifield */
-       { PCI_VDEVICE(INTEL, 0x11a2), (kernel_ulong_t)&idma32_pci_data },
+       { PCI_VDEVICE(INTEL, 0x11a2), (kernel_ulong_t)&idma32_chip_pdata },
 
        /* Braswell */
-       { PCI_VDEVICE(INTEL, 0x2286), (kernel_ulong_t)&dw_pci_data },
-       { PCI_VDEVICE(INTEL, 0x22c0), (kernel_ulong_t)&dw_pci_data },
+       { PCI_VDEVICE(INTEL, 0x2286), (kernel_ulong_t)&dw_dma_chip_pdata },
+       { PCI_VDEVICE(INTEL, 0x22c0), (kernel_ulong_t)&dw_dma_chip_pdata },
 
        /* Elkhart Lake iDMA 32-bit (PSE DMA) */
-       { PCI_VDEVICE(INTEL, 0x4bb4), (kernel_ulong_t)&idma32_pci_data },
-       { PCI_VDEVICE(INTEL, 0x4bb5), (kernel_ulong_t)&idma32_pci_data },
-       { PCI_VDEVICE(INTEL, 0x4bb6), (kernel_ulong_t)&idma32_pci_data },
+       { PCI_VDEVICE(INTEL, 0x4bb4), (kernel_ulong_t)&idma32_chip_pdata },
+       { PCI_VDEVICE(INTEL, 0x4bb5), (kernel_ulong_t)&idma32_chip_pdata },
+       { PCI_VDEVICE(INTEL, 0x4bb6), (kernel_ulong_t)&idma32_chip_pdata },
 
        /* Haswell */
-       { PCI_VDEVICE(INTEL, 0x9c60), (kernel_ulong_t)&dw_pci_data },
+       { PCI_VDEVICE(INTEL, 0x9c60), (kernel_ulong_t)&dw_dma_chip_pdata },
 
        /* Broadwell */
-       { PCI_VDEVICE(INTEL, 0x9ce0), (kernel_ulong_t)&dw_pci_data },
+       { PCI_VDEVICE(INTEL, 0x9ce0), (kernel_ulong_t)&dw_dma_chip_pdata },
 
        { }
 };