diff options
Diffstat (limited to 'drivers/mtd/spi-nor/fsl-quadspi.c')
-rw-r--r-- | drivers/mtd/spi-nor/fsl-quadspi.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 2fb07eced2ba..39763b94f67d 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -719,16 +719,10 @@ static int fsl_qspi_read(struct spi_nor *nor, loff_t from, { struct fsl_qspi *q = nor->priv; u8 cmd = nor->read_opcode; - int ret; dev_dbg(q->dev, "cmd [%x],read from (0x%p, 0x%.8x, 0x%.8x),len:%d\n", cmd, q->ahb_base, q->chip_base_addr, (unsigned int)from, len); - /* Wait until the previous command is finished. */ - ret = nor->wait_till_ready(nor); - if (ret) - return ret; - /* Read out the data directly from the AHB buffer.*/ memcpy(buf, q->ahb_base + q->chip_base_addr + from, len); @@ -744,16 +738,6 @@ static int fsl_qspi_erase(struct spi_nor *nor, loff_t offs) dev_dbg(nor->dev, "%dKiB at 0x%08x:0x%08x\n", nor->mtd->erasesize / 1024, q->chip_base_addr, (u32)offs); - /* Wait until finished previous write command. */ - ret = nor->wait_till_ready(nor); - if (ret) - return ret; - - /* Send write enable, then erase commands. */ - ret = nor->write_reg(nor, SPINOR_OP_WREN, NULL, 0, 0); - if (ret) - return ret; - ret = fsl_qspi_runcmd(q, nor->erase_opcode, offs, 0); if (ret) return ret; @@ -849,9 +833,8 @@ static int fsl_qspi_probe(struct platform_device *pdev) ret = clk_prepare_enable(q->clk); if (ret) { - clk_disable_unprepare(q->clk_en); dev_err(dev, "can not enable the qspi clock\n"); - goto map_failed; + goto clk_failed; } /* find the irq */ @@ -905,7 +888,8 @@ static int fsl_qspi_probe(struct platform_device *pdev) nor->prepare = fsl_qspi_prep; nor->unprepare = fsl_qspi_unprep; - if (of_modalias_node(np, modalias, sizeof(modalias)) < 0) + ret = of_modalias_node(np, modalias, sizeof(modalias)); + if (ret < 0) goto map_failed; ret = of_property_read_u32(np, "spi-max-frequency", @@ -964,6 +948,7 @@ last_init_failed: irq_failed: clk_disable_unprepare(q->clk); +clk_failed: clk_disable_unprepare(q->clk_en); map_failed: dev_err(dev, "Freescale QuadSPI probe failed\n"); |