Blackfin SPI driver: move hard coded pin_req to board file

Remove some sort of bloaty code, try to get these pin_req arrays built at compile-time

 - move this static things to the blackfin board file
 - add pin_req array to struct bfin5xx_spi_master
 - tested on BF537/BF548 with SPI flash

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 8 insertions, 21 deletions

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 6a02bd3ef9fd..d6e9812538c4 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -80,6 +80,9 @@ struct driver_data {
         /* Regs base of SPI controller */
         void __iomem *regs_base;
 
+        /* Pin request list */
+        u16 *pin_req;
+
         /* BFIN hookup */
         struct bfin5xx_spi_master *master_info;
 
@@ -1255,25 +1258,6 @@ static inline int destroy_queue(struct driver_data *drv_data)
         return 0;
 }
 
-static int setup_pin_mux(int action, int bus_num)
-{
-
-        u16 pin_req[3][4] = {
-                {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
-                {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
-                {P_SPI2_SCK, P_SPI2_MISO, P_SPI2_MOSI, 0},
-        };
-
-        if (action) {
-                if (peripheral_request_list(pin_req[bus_num], DRV_NAME))
-                        return -EFAULT;
-        } else {
-                peripheral_free_list(pin_req[bus_num]);
-        }
-
-        return 0;
-}
-
 static int __init bfin5xx_spi_probe(struct platform_device *pdev)
 {
         struct device *dev = &pdev->dev;
@@ -1296,6 +1280,7 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
         drv_data->master = master;
         drv_data->master_info = platform_info;
         drv_data->pdev = pdev;
+        drv_data->pin_req = platform_info->pin_req;
 
         master->bus_num = pdev->id;
         master->num_chipselect = platform_info->num_chipselect;
@@ -1346,7 +1331,8 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
                 goto out_error_queue_alloc;
         }
 
-        if (setup_pin_mux(1, master->bus_num)) {
+        status = peripheral_request_list(drv_data->pin_req, DRV_NAME);
+        if (status != 0) {
                 dev_err(&pdev->dev, ": Requesting Peripherals failed\n");
                 goto out_error;
         }
@@ -1394,7 +1380,7 @@ static int __devexit bfin5xx_spi_remove(struct platform_device *pdev)
         /* Disconnect from the SPI framework */
         spi_unregister_master(drv_data->master);
 
-        setup_pin_mux(0, drv_data->master->bus_num);
+        peripheral_free_list(drv_data->pin_req);
 
         /* Prevent double remove */
         platform_set_drvdata(pdev, NULL);
diff --git a/include/asm-blackfin/bfin5xx_spi.h b/include/asm-blackfin/bfin5xx_spi.h
index d4485b37d8e2..1a0b57f6a3d4 100644
--- a/include/asm-blackfin/bfin5xx_spi.h
+++ b/include/asm-blackfin/bfin5xx_spi.h
@@ -152,6 +152,7 @@
 struct bfin5xx_spi_master {
         u16 num_chipselect;
         u8 enable_dma;
+        u16 pin_req[4];
 };
 
 /* spi_board_info.controller_data for SPI slave devices,