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mtd: nand/fsmc: Use dev_err to report error scenario 

fsmc controller takes time to calculate the bch8 codes and the error offsets.
The calculate logic checks for completion upto a timeout. This patch adds a
error print when this timer expires and the ecc or error offsets are not yet
calculated.

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Vipin Kumar 2012-03-14 11:47:16 +05:30 committed by David Woodhouse
parent 82b9dbe2e0
commit 712c4add03
1 changed files with 7 additions and 0 deletions
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7
drivers/mtd/nand/fsmc_nand.c
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@ -296,6 +296,7 @@ struct fsmc_nand_data {
struct fsmc_eccplace *ecc_place;
unsigned int bank;
struct device *dev;
struct clk *clk;
struct fsmc_nand_timings *dev_timings;
@ -457,6 +458,11 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data,
cond_resched();
} while (!time_after_eq(jiffies, deadline));
if (time_after_eq(jiffies, deadline)) {
dev_err(host->dev, "calculate ecc timed out\n");
return -ETIMEDOUT;
}
ecc_tmp = readl(&regs->bank_regs[bank].ecc1);
ecc[0] = (uint8_t) (ecc_tmp >> 0);
ecc[1] = (uint8_t) (ecc_tmp >> 8);
@ -793,6 +799,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
host->select_chip = pdata->select_bank;
host->partitions = pdata->partitions;
host->nr_partitions = pdata->nr_partitions;
host->dev = &pdev->dev;
host->dev_timings = pdata->nand_timings;
regs = host->regs_va;