[PATCH v3 04/19] clk: imx: clk-imxrt1050: add set_parent() callback
Giulio Benetti
giulio.benetti at benettiengineering.com
Wed Apr 8 17:10:10 CEST 2020
Need to add set_parent() callback to allow dts assigned-clock-parents to
work so let's add it accordingly.
Signed-off-by: Giulio Benetti <giulio.benetti at benettiengineering.com>
---
V1->V2:
* introduce patch to allow clock's parent setting in dts to work
---
drivers/clk/imx/clk-imxrt1050.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/clk/imx/clk-imxrt1050.c b/drivers/clk/imx/clk-imxrt1050.c
index bb12644605..329f4580c5 100644
--- a/drivers/clk/imx/clk-imxrt1050.c
+++ b/drivers/clk/imx/clk-imxrt1050.c
@@ -71,11 +71,30 @@ static int imxrt1050_clk_enable(struct clk *clk)
return __imxrt1050_clk_enable(clk, 1);
}
+static int imxrt1050_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+ struct clk *c, *cp;
+ int ret;
+
+ debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
+
+ ret = clk_get_by_id(clk->id, &c);
+ if (ret)
+ return ret;
+
+ ret = clk_get_by_id(parent->id, &cp);
+ if (ret)
+ return ret;
+
+ return clk_set_parent(c, cp);
+}
+
static struct clk_ops imxrt1050_clk_ops = {
.set_rate = imxrt1050_clk_set_rate,
.get_rate = imxrt1050_clk_get_rate,
.enable = imxrt1050_clk_enable,
.disable = imxrt1050_clk_disable,
+ .set_parent = imxrt1050_clk_set_parent,
};
static const char * const pll_ref_sels[] = {"osc", "dummy", };
--
2.20.1
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