diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-dw-mmio.c | 19 | ||||
| -rw-r--r-- | drivers/spi/spi-efm32.c | 8 | ||||
| -rw-r--r-- | drivers/spi/spi-fsl-lib.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi-omap-uwire.c | 11 |
4 files changed, 30 insertions, 10 deletions
diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index a5cba14ac3d2..21ce0e36fa00 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -16,7 +16,9 @@ #include <linux/spi/spi.h> #include <linux/scatterlist.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/of_gpio.h> +#include <linux/of_platform.h> #include "spi-dw.h" @@ -33,6 +35,7 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) struct dw_spi *dws; struct resource *mem; int ret; + int num_cs; dwsmmio = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_mmio), GFP_KERNEL); @@ -68,9 +71,16 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) return ret; dws->bus_num = pdev->id; - dws->num_cs = 4; + dws->max_freq = clk_get_rate(dwsmmio->clk); + num_cs = 4; + + if (pdev->dev.of_node) + of_property_read_u32(pdev->dev.of_node, "num-cs", &num_cs); + + dws->num_cs = num_cs; + if (pdev->dev.of_node) { int i; @@ -114,12 +124,19 @@ static int dw_spi_mmio_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id dw_spi_mmio_of_match[] = { + { .compatible = "snps,dw-apb-ssi", }, + { /* end of table */} +}; +MODULE_DEVICE_TABLE(of, dw_spi_mmio_of_match); + static struct platform_driver dw_spi_mmio_driver = { .probe = dw_spi_mmio_probe, .remove = dw_spi_mmio_remove, .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, + .of_match_table = dw_spi_mmio_of_match, }, }; module_platform_driver(dw_spi_mmio_driver); diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c index be44a3eeb5e8..6caeb1cac0f3 100644 --- a/drivers/spi/spi-efm32.c +++ b/drivers/spi/spi-efm32.c @@ -294,10 +294,16 @@ static void efm32_spi_probe_dt(struct platform_device *pdev, u32 location; int ret; - ret = of_property_read_u32(np, "efm32,location", &location); + ret = of_property_read_u32(np, "energymicro,location", &location); + + if (ret) + /* fall back to wrongly namespaced property */ + ret = of_property_read_u32(np, "efm32,location", &location); + if (ret) /* fall back to old and (wrongly) generic property "location" */ ret = of_property_read_u32(np, "location", &location); + if (!ret) { dev_dbg(&pdev->dev, "using location %u\n", location); } else { diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c index 95212ea96c8d..e0b773fc29cb 100644 --- a/drivers/spi/spi-fsl-lib.c +++ b/drivers/spi/spi-fsl-lib.c @@ -196,7 +196,7 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev) pinfo = devm_kzalloc(&ofdev->dev, sizeof(*pinfo), GFP_KERNEL); if (!pinfo) - return -ENOMEM; + return ret; pdata = &pinfo->pdata; dev->platform_data = pdata; diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c index 0f5a0aa3b871..8bca90a19dd1 100644 --- a/drivers/spi/spi-omap-uwire.c +++ b/drivers/spi/spi-omap-uwire.c @@ -41,14 +41,15 @@ #include <linux/err.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/device.h> #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> #include <linux/module.h> +#include <linux/io.h> #include <asm/irq.h> #include <mach/hardware.h> -#include <asm/io.h> #include <asm/mach-types.h> #include <mach/mux.h> @@ -447,7 +448,6 @@ static void uwire_off(struct uwire_spi *uwire) { uwire_write_reg(UWIRE_SR3, 0); clk_disable(uwire->ck); - clk_put(uwire->ck); spi_master_put(uwire->bitbang.master); } @@ -463,7 +463,7 @@ static int uwire_probe(struct platform_device *pdev) uwire = spi_master_get_devdata(master); - uwire_base = ioremap(UWIRE_BASE_PHYS, UWIRE_IO_SIZE); + uwire_base = devm_ioremap(&pdev->dev, UWIRE_BASE_PHYS, UWIRE_IO_SIZE); if (!uwire_base) { dev_dbg(&pdev->dev, "can't ioremap UWIRE\n"); spi_master_put(master); @@ -472,12 +472,11 @@ static int uwire_probe(struct platform_device *pdev) platform_set_drvdata(pdev, uwire); - uwire->ck = clk_get(&pdev->dev, "fck"); + uwire->ck = devm_clk_get(&pdev->dev, "fck"); if (IS_ERR(uwire->ck)) { status = PTR_ERR(uwire->ck); dev_dbg(&pdev->dev, "no functional clock?\n"); spi_master_put(master); - iounmap(uwire_base); return status; } clk_enable(uwire->ck); @@ -507,7 +506,6 @@ static int uwire_probe(struct platform_device *pdev) status = spi_bitbang_start(&uwire->bitbang); if (status < 0) { uwire_off(uwire); - iounmap(uwire_base); } return status; } @@ -520,7 +518,6 @@ static int uwire_remove(struct platform_device *pdev) spi_bitbang_stop(&uwire->bitbang); uwire_off(uwire); - iounmap(uwire_base); return 0; } |