From 4178b6b1b595003cd6e04711b449797a582e44f5 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 26 Aug 2015 21:21:50 +0200 Subject: spi: fsl-(e)spi: migrate to using devm_ functions to simplify cleanup Migrate fsl-espi and fsl-spi to using the managed devm_ functions for resource handling. This simplifies the cleanup. Signed-off-by: Heiner Kallweit Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-spi.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-) (limited to 'drivers/spi/spi-fsl-spi.c') diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 60c590790854..8bfbe9e04bfd 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -561,7 +561,6 @@ static irqreturn_t fsl_spi_irq(s32 irq, void *context_data) static void fsl_spi_remove(struct mpc8xxx_spi *mspi) { - iounmap(mspi->reg_base); fsl_spi_cpm_free(mspi); } @@ -639,10 +638,10 @@ static struct spi_master * fsl_spi_probe(struct device *dev, if (ret) goto err_cpm_init; - mpc8xxx_spi->reg_base = ioremap(mem->start, resource_size(mem)); + mpc8xxx_spi->reg_base = devm_ioremap_resource(dev, mem); if (mpc8xxx_spi->reg_base == NULL) { ret = -ENOMEM; - goto err_ioremap; + goto err_probe; } if (mpc8xxx_spi->type == TYPE_GRLIB) @@ -661,11 +660,11 @@ static struct spi_master * fsl_spi_probe(struct device *dev, &mpc8xxx_spi->tx_shift, 8, 1); /* Register for SPI Interrupt */ - ret = request_irq(mpc8xxx_spi->irq, fsl_spi_irq, - 0, "fsl_spi", mpc8xxx_spi); + ret = devm_request_irq(dev, mpc8xxx_spi->irq, fsl_spi_irq, + 0, "fsl_spi", mpc8xxx_spi); if (ret != 0) - goto free_irq; + goto err_probe; reg_base = mpc8xxx_spi->reg_base; @@ -686,20 +685,16 @@ static struct spi_master * fsl_spi_probe(struct device *dev, mpc8xxx_spi_write_reg(®_base->mode, regval); - ret = spi_register_master(master); + ret = devm_spi_register_master(dev, master); if (ret < 0) - goto unreg_master; + goto err_probe; dev_info(dev, "at 0x%p (irq = %d), %s mode\n", reg_base, mpc8xxx_spi->irq, mpc8xxx_spi_strmode(mpc8xxx_spi->flags)); return master; -unreg_master: - free_irq(mpc8xxx_spi->irq, mpc8xxx_spi); -free_irq: - iounmap(mpc8xxx_spi->reg_base); -err_ioremap: +err_probe: fsl_spi_cpm_free(mpc8xxx_spi); err_cpm_init: spi_master_put(master); -- cgit v1.2.3 From 3c5395b66ff69d8d568d0b9ff8b1077e044def5b Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Wed, 26 Aug 2015 21:21:53 +0200 Subject: spi: fsl-(e)spi: simplify cleanup code Now that most cleanup is done automatically the remove functions can be significantly simplified. Signed-off-by: Heiner Kallweit Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-spi.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'drivers/spi/spi-fsl-spi.c') diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 8bfbe9e04bfd..17a9a879dcce 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -559,11 +559,6 @@ static irqreturn_t fsl_spi_irq(s32 irq, void *context_data) return ret; } -static void fsl_spi_remove(struct mpc8xxx_spi *mspi) -{ - fsl_spi_cpm_free(mspi); -} - static void fsl_spi_grlib_cs_control(struct spi_device *spi, bool on) { struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master); @@ -630,7 +625,6 @@ static struct spi_master * fsl_spi_probe(struct device *dev, master->transfer_one_message = fsl_spi_do_one_msg; mpc8xxx_spi = spi_master_get_devdata(master); - mpc8xxx_spi->spi_remove = fsl_spi_remove; mpc8xxx_spi->max_bits_per_word = 32; mpc8xxx_spi->type = fsl_spi_get_type(dev); @@ -861,11 +855,8 @@ static int of_fsl_spi_remove(struct platform_device *ofdev) { struct spi_master *master = platform_get_drvdata(ofdev); struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master); - int ret; - ret = mpc8xxx_spi_remove(&ofdev->dev); - if (ret) - return ret; + fsl_spi_cpm_free(mpc8xxx_spi); if (mpc8xxx_spi->type == TYPE_FSL) of_fsl_spi_free_chipselects(&ofdev->dev); return 0; @@ -911,7 +902,12 @@ static int plat_mpc8xxx_spi_probe(struct platform_device *pdev) static int plat_mpc8xxx_spi_remove(struct platform_device *pdev) { - return mpc8xxx_spi_remove(&pdev->dev); + struct spi_master *master = platform_get_drvdata(pdev); + struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(master); + + fsl_spi_cpm_free(mpc8xxx_spi); + + return 0; } MODULE_ALIAS("platform:mpc8xxx_spi"); -- cgit v1.2.3 From 37c5db7938093cada165146ee99bd57c97baf6a3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 30 Aug 2015 18:35:51 +0800 Subject: spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource devm_ioremap_resource() returns ERR_PTR on error. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/spi/spi-fsl-spi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/spi/spi-fsl-spi.c') diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c index 17a9a879dcce..8b290d9d7935 100644 --- a/drivers/spi/spi-fsl-spi.c +++ b/drivers/spi/spi-fsl-spi.c @@ -633,8 +633,8 @@ static struct spi_master * fsl_spi_probe(struct device *dev, goto err_cpm_init; mpc8xxx_spi->reg_base = devm_ioremap_resource(dev, mem); - if (mpc8xxx_spi->reg_base == NULL) { - ret = -ENOMEM; + if (IS_ERR(mpc8xxx_spi->reg_base)) { + ret = PTR_ERR(mpc8xxx_spi->reg_base); goto err_probe; } -- cgit v1.2.3