diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-09-20 00:14:38 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-10-01 09:31:19 -0500 |
| commit | af3848757204a16670d7da94f72beb45564955cc (patch) | |
| tree | 610a8cf402a97addcadea54b19abd4e52ea7c4d7 /drivers/usb/musb/am35x.c | |
| parent | d1d7e3f537d3cddc79f51c2f0285991446fb6837 (diff) | |
| download | linux-af3848757204a16670d7da94f72beb45564955cc.tar.bz2 | |
usb: musb: use platform_device_register_full() to avoid directly messing with dma masks
Use platform_device_register_full() for those drivers which can, to
avoid messing directly with DMA masks. This can only be done when
the driver does not need to access the allocated musb platform device
from within its callbacks, which may be called during the musb
device probing.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/am35x.c')
| -rw-r--r-- | drivers/usb/musb/am35x.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 5c310c664218..790b22b296b1 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -89,7 +89,6 @@ struct am35x_glue { struct clk *phy_clk; struct clk *clk; }; -#define glue_to_musb(g) platform_get_drvdata(g->musb) /* * am35x_musb_enable - enable interrupts @@ -452,14 +451,18 @@ static const struct musb_platform_ops am35x_ops = { .set_vbus = am35x_musb_set_vbus, }; -static u64 am35x_dmamask = DMA_BIT_MASK(32); +static const struct platform_device_info am35x_dev_info = { + .name = "musb-hdrc", + .id = PLATFORM_DEVID_AUTO, + .dma_mask = DMA_BIT_MASK(32), +}; static int am35x_probe(struct platform_device *pdev) { struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct am35x_glue *glue; - + struct platform_device_info pinfo; struct clk *phy_clk; struct clk *clk; @@ -471,12 +474,6 @@ static int am35x_probe(struct platform_device *pdev) goto err0; } - musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); - if (!musb) { - dev_err(&pdev->dev, "failed to allocate musb device\n"); - goto err1; - } - phy_clk = clk_get(&pdev->dev, "fck"); if (IS_ERR(phy_clk)) { dev_err(&pdev->dev, "failed to get PHY clock\n"); @@ -503,12 +500,7 @@ static int am35x_probe(struct platform_device *pdev) goto err6; } - musb->dev.parent = &pdev->dev; - musb->dev.dma_mask = &am35x_dmamask; - musb->dev.coherent_dma_mask = am35x_dmamask; - glue->dev = &pdev->dev; - glue->musb = musb; glue->phy_clk = phy_clk; glue->clk = clk; @@ -516,22 +508,17 @@ static int am35x_probe(struct platform_device *pdev) platform_set_drvdata(pdev, glue); - ret = platform_device_add_resources(musb, pdev->resource, - pdev->num_resources); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto err7; - } - - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); - if (ret) { - dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err7; - } - - ret = platform_device_add(musb); - if (ret) { - dev_err(&pdev->dev, "failed to register musb device\n"); + pinfo = am35x_dev_info; + pinfo.parent = &pdev->dev; + pinfo.res = pdev->resource; + pinfo.num_res = pdev->num_resources; + pinfo.data = pdata; + pinfo.size_data = sizeof(*pdata); + + glue->musb = musb = platform_device_register_full(&pinfo); + if (IS_ERR(musb)) { + ret = PTR_ERR(musb); + dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); goto err7; } @@ -550,9 +537,6 @@ err4: clk_put(phy_clk); err3: - platform_device_put(musb); - -err1: kfree(glue); err0: |