From: Mikko Perttunen <mperttunen@xxxxxxxxxx>
For completeness, also implement this reset framework API for Tegra.
Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
Reviewed-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx>
Reviewed-by: Arto Merilainen <amerilainen@xxxxxxxxxx>
---
drivers/clk/tegra/clk.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index b2cdd9a..ba923f0 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 = {
--
1.9.1
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