mtd: gpmi-nand: make debug prints more clear

Make the error messages more debugging friendly

Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index d79696b2f19b..e2c56fc4574b 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -222,7 +222,7 @@ void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
 
                 ret = dma_map_sg(this->dev, sgl, 1, dr);
                 if (ret == 0)
-                        pr_err("map failed.\n");
+                        pr_err("DMA mapping failed.\n");
 
                 this->direct_dma_map_ok = false;
         }
@@ -456,7 +456,7 @@ static int __devinit acquire_dma_channels(struct gpmi_nand_data *this)
 
         dma_chan = dma_request_channel(mask, gpmi_dma_filter, this);
         if (!dma_chan) {
-                pr_err("dma_request_channel failed.\n");
+                pr_err("Failed to request DMA channel.\n");
                 goto acquire_err;
         }
 
@@ -625,7 +625,8 @@ static int read_page_prepare(struct gpmi_nand_data *this,
                                                 length, DMA_FROM_DEVICE);
                 if (dma_mapping_error(dev, dest_phys)) {
                         if (alt_size < length) {
-                                pr_err("Alternate buffer is too small\n");
+                                pr_err("%s, Alternate buffer is too small\n",
+                                        __func__);
                                 return -ENOMEM;
                         }
                         goto map_failed;
@@ -675,7 +676,8 @@ static int send_page_prepare(struct gpmi_nand_data *this,
                                                 DMA_TO_DEVICE);
                 if (dma_mapping_error(dev, source_phys)) {
                         if (alt_size < length) {
-                                pr_err("Alternate buffer is too small\n");
+                                pr_err("%s, Alternate buffer is too small\n",
+                                        __func__);
                                 return -ENOMEM;
                         }
                         goto map_failed;
@@ -763,7 +765,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
 
 error_alloc:
         gpmi_free_dma_buffer(this);
-        pr_err("allocate DMA buffer ret!!\n");
+        pr_err("Error allocating DMA buffers!\n");
         return -ENOMEM;
 }
 
@@ -1474,7 +1476,7 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)
         /* Set up the NFC geometry which is used by BCH. */
         ret = bch_set_geometry(this);
         if (ret) {
-                pr_err("set geometry ret : %d\n", ret);
+                pr_err("Error setting BCH geometry : %d\n", ret);
                 return ret;
         }