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Diffstat (limited to 'drivers/mtd/nand/raw')
-rw-r--r--drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index b06e202cdd0d..aaae000f9169 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -2256,7 +2256,7 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
void *buf_read = NULL;
const void *buf_write = NULL;
bool direct = false;
- struct completion *completion;
+ struct completion *dma_completion, *bch_completion;
unsigned long to;
if (check_only)
@@ -2353,22 +2353,24 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
this->resources.bch_regs + HW_BCH_FLASH0LAYOUT1);
}
+ desc->callback = dma_irq_callback;
+ desc->callback_param = this;
+ dma_completion = &this->dma_done;
+ bch_completion = NULL;
+
+ init_completion(dma_completion);
+
if (this->bch && buf_read) {
writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
this->resources.bch_regs + HW_BCH_CTRL_SET);
- completion = &this->bch_done;
- } else {
- desc->callback = dma_irq_callback;
- desc->callback_param = this;
- completion = &this->dma_done;
+ bch_completion = &this->bch_done;
+ init_completion(bch_completion);
}
- init_completion(completion);
-
dmaengine_submit(desc);
dma_async_issue_pending(get_dma_chan(this));
- to = wait_for_completion_timeout(completion, msecs_to_jiffies(1000));
+ to = wait_for_completion_timeout(dma_completion, msecs_to_jiffies(1000));
if (!to) {
dev_err(this->dev, "DMA timeout, last DMA\n");
gpmi_dump_info(this);
@@ -2376,6 +2378,16 @@ static int gpmi_nfc_exec_op(struct nand_chip *chip,
goto unmap;
}
+ if (this->bch && buf_read) {
+ to = wait_for_completion_timeout(bch_completion, msecs_to_jiffies(1000));
+ if (!to) {
+ dev_err(this->dev, "BCH timeout, last DMA\n");
+ gpmi_dump_info(this);
+ ret = -ETIMEDOUT;
+ goto unmap;
+ }
+ }
+
writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
this->resources.bch_regs + HW_BCH_CTRL_CLR);
gpmi_clear_bch(this);