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>

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index d79696b2f19b8a50cf2c91f6c88225925a478d43..e2c56fc4574be517b87e437a635da83cc91e5122 100644 (file)
--- 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;
        }