mmc: Support of PCI mode in the dw_mmc driver

Support of PCI mode for the dw_mmc driver. This Patch adds the
support for the scenario where the Synopsys Designware IP
is present on the PCI bus. The patch adds the minimal modifications
necessary for the driver to work on PCI platform. Also added separate
files for PCI and PLATFORM modes of operation.

Signed-off-by: Shashidhar Hiremath <shashidharh@vayavyalabs.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index aae5d1f1bb39..8f66e28f5a0f 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -76,7 +76,7 @@ struct mmc_data;
  * @num_slots: Number of slots available.
  * @verid: Denote Version ID.
  * @data_offset: Set the offset of DATA register according to VERID.
- * @pdev: Platform device associated with the MMC controller.
+ * @dev: Device associated with the MMC controller.
  * @pdata: Platform data associated with the MMC controller.
  * @slot: Slots sharing this MMC controller.
  * @fifo_depth: depth of FIFO.
@@ -87,6 +87,8 @@ struct mmc_data;
  * @push_data: Pointer to FIFO push function.
  * @pull_data: Pointer to FIFO pull function.
  * @quirks: Set of quirks that apply to specific versions of the IP.
+ * @irq_flags: The flags to be passed to request_irq.
+ * @irq: The irq value to be passed to request_irq.
  *
  * Locking
  * =======
@@ -153,7 +155,7 @@ struct dw_mci {
         u32                     fifoth_val;
         u16                     verid;
         u16                     data_offset;
-        struct platform_device  *pdev;
+        struct device           dev;
         struct dw_mci_board     *pdata;
         struct dw_mci_slot      *slot[MAX_MCI_SLOTS];
 
@@ -174,6 +176,8 @@ struct dw_mci {
         u32                     quirks;
 
         struct regulator        *vmmc;  /* Power regulator */
+        unsigned long           irq_flags; /* IRQ flags */
+        unsigned int            irq;
 };
 
 /* DMA ops for Internal/External DMAC interface */