diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2017-03-02 17:16:16 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-03-20 16:15:31 +0300 |
| commit | 4236e752f19d4dae372336859a18ca8a5bed9374 (patch) | |
| tree | d2f46ac57acb8adc6b8f93cc89c01a5204f60aa4 /drivers/clk/tegra/clk.c | |
| parent | 9619dba8325fce098bbc9ee2911d1b0150fec0c9 (diff) | |
| download | linux-4236e752f19d4dae372336859a18ca8a5bed9374.tar.xz | |
clk: tegra: Implement reset control reset
For completeness, also implement this reset framework API for Tegra.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra/clk.c')
| -rw-r--r-- | drivers/clk/tegra/clk.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c index b2cdd9a235f4..ba923f0d5953 100644 --- a/drivers/clk/tegra/clk.c +++ b/drivers/clk/tegra/clk.c @@ -17,6 +17,7 @@ #include <linux/clkdev.h> #include <linux/clk.h> #include <linux/clk-provider.h> +#include <linux/delay.h> #include <linux/of.h> #include <linux/clk/tegra.h> #include <linux/reset-controller.h> @@ -182,6 +183,20 @@ static int tegra_clk_rst_deassert(struct reset_controller_dev *rcdev, return -EINVAL; } +static int tegra_clk_rst_reset(struct reset_controller_dev *rcdev, + unsigned long id) +{ + int err; + + err = tegra_clk_rst_assert(rcdev, id); + if (err) + return err; + + udelay(1); + + return tegra_clk_rst_deassert(rcdev, id); +} + const struct tegra_clk_periph_regs *get_reg_bank(int clkid) { int reg_bank = clkid / 32; @@ -274,6 +289,7 @@ void __init tegra_init_from_table(struct tegra_clk_init_table *tbl, static const struct reset_control_ops rst_ops = { .assert = tegra_clk_rst_assert, .deassert = tegra_clk_rst_deassert, + .reset = tegra_clk_rst_reset, }; static struct reset_controller_dev rst_ctlr = { |