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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>
This commit is contained in:
Stephen Warren 2013-11-06 16:42:05 -07:00
parent 5608bd3ed2
commit dda9d6a826
1 changed files with 10 additions and 3 deletions
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13
drivers/i2c/busses/i2c-tegra.c
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@ -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)