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| author | Stephen Warren <swarren@nvidia.com> | 2013-11-06 16:42:05 -0700 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-12-11 16:44:04 -0700 |
| commit | dda9d6a8262cb1fa63eb815dc0de2a984389c71b (patch) | |
| tree | 8837f509cdff5c97f9d7bffbac165393f4d242e1 /drivers/i2c | |
| parent | 5608bd3ed23e62bba96cc019030c742c78981b59 (diff) | |
| download | linux-dda9d6a8262cb1fa63eb815dc0de2a984389c71b.tar.gz linux-dda9d6a8262cb1fa63eb815dc0de2a984389c71b.tar.bz2 linux-dda9d6a8262cb1fa63eb815dc0de2a984389c71b.zip | |
i2c: tegra: use reset framework
Tegra's clock driver now provides an implementation of the common
reset API (include/linux/reset.h). Use this instead of the old Tegra-
specific API; that will soon be removed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index e661edee4d0c..9704537aee3c 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -27,7 +27,7 @@ #include <linux/slab.h> #include <linux/of_device.h> #include <linux/module.h> -#include <linux/clk/tegra.h> +#include <linux/reset.h> #include <asm/unaligned.h> @@ -160,6 +160,7 @@ struct tegra_i2c_dev { struct i2c_adapter adapter; struct clk *div_clk; struct clk *fast_clk; + struct reset_control *rst; void __iomem *base; int cont_id; int irq; @@ -415,9 +416,9 @@ static int tegra_i2c_init(struct tegra_i2c_dev *i2c_dev) return err; } - tegra_periph_reset_assert(i2c_dev->div_clk); + reset_control_assert(i2c_dev->rst); udelay(2); - tegra_periph_reset_deassert(i2c_dev->div_clk); + reset_control_deassert(i2c_dev->rst); if (i2c_dev->is_dvc) tegra_dvc_init(i2c_dev); @@ -743,6 +744,12 @@ static int tegra_i2c_probe(struct platform_device *pdev) i2c_dev->cont_id = pdev->id; i2c_dev->dev = &pdev->dev; + i2c_dev->rst = devm_reset_control_get(&pdev->dev, "i2c"); + if (IS_ERR(i2c_dev->rst)) { + dev_err(&pdev->dev, "missing controller reset"); + return PTR_ERR(i2c_dev->rst); + } + ret = of_property_read_u32(i2c_dev->dev->of_node, "clock-frequency", &i2c_dev->bus_clk_rate); if (ret) |