From: Benedikt Spranger <[email protected]> The Flexcard offers a Flexray network synchronized counter with a selectable resolution of 1us, 100ns or 10ns. Add an appropriate MFD-cell to use the counter.
Signed-off-by: Holger Dengler <[email protected]> Signed-off-by: Benedikt Spranger <[email protected]> cc: Samuel Ortiz <[email protected]> cc: Lee Jones <[email protected]> --- drivers/mfd/flexcard/core.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/mfd/flexcard/core.c b/drivers/mfd/flexcard/core.c index 6477019..c73ae5c 100644 --- a/drivers/mfd/flexcard/core.c +++ b/drivers/mfd/flexcard/core.c @@ -28,6 +28,29 @@ static DEFINE_IDA(flexcard_ida); static const char drv_name[] = "flexcard"; +static struct resource flexcard_clk_res[] = { + { + .name = "flexcard-clksrc", + .start = 0x700, + .end = 0x713, + .flags = IORESOURCE_MEM, + }, { + .name = "flexcard-reset", + .start = 0x144, + .end = 0x147, + .flags = IORESOURCE_MEM, + }, +}; + +static struct mfd_cell flexcard_clk_dev[] = { + { + .id = 0, + .name = "flexcard-clksrc", + .num_resources = ARRAY_SIZE(flexcard_clk_res), + .resources = flexcard_clk_res, + }, +}; + static int flexcard_tiny_can(struct flexcard_device *priv, int idx, int id, u32 offset) { @@ -111,6 +134,21 @@ static int flexcard_tiny_probe(struct flexcard_device *priv) return mfd_add_devices(&pdev->dev, 0, priv->cells, nr, NULL, 0, NULL); } +static int flexcard_clk_setup(struct flexcard_device *priv) +{ + struct pci_dev *pdev = priv->pdev; + int i; + + for (i = 0; i < ARRAY_SIZE(flexcard_clk_res); i++) + flexcard_clk_res[i].parent = &pdev->resource[0]; + + flexcard_clk_dev[0].id = priv->cardnr; + + return mfd_add_devices(&pdev->dev, 0, flexcard_clk_dev, + ARRAY_SIZE(flexcard_clk_dev), + &pdev->resource[0], 0, NULL); +} + static int flexcard_misc_open(struct inode *inode, struct file *filp) { struct flexcard_device *priv = @@ -233,6 +271,12 @@ static int flexcard_probe(struct pci_dev *pdev, goto out_unmap; } + ret = flexcard_clk_setup(priv); + if (ret) { + dev_err(&pdev->dev, "unable to register clksrc: %d\n", ret); + goto out_remove; + } + ret = misc_register(&priv->dev); if (ret) { dev_err(&pdev->dev, "unable to register miscdevice: %d\n", ret); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
