linux-kernel - [PATCH v4 13/18] clk: qcom: clk-krait: add enable disable ops

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Date:   Mon, 21 Mar 2022 15:48:20 +0100
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Ansuel Smith <ansuelsmth@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org
Subject: [PATCH v4 13/18] clk: qcom: clk-krait: add enable disable ops

Add enable/disable ops for krait mux. On disable the mux is set to the
safe selection.

Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
 drivers/clk/qcom/clk-krait.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/clk/qcom/clk-krait.c b/drivers/clk/qcom/clk-krait.c
index 7ba5dbc72bce..061af57b0ec2 100644
--- a/drivers/clk/qcom/clk-krait.c
+++ b/drivers/clk/qcom/clk-krait.c
@@ -85,7 +85,25 @@ static u8 krait_mux_get_parent(struct clk_hw *hw)
 	return clk_mux_val_to_index(hw, mux->parent_map, 0, sel);
 }
 
+static int krait_mux_enable(struct clk_hw *hw)
+{
+	struct krait_mux_clk *mux = to_krait_mux_clk(hw);
+
+	__krait_mux_set_sel(mux, mux->en_mask);
+
+	return 0;
+}
+
+static void krait_mux_disable(struct clk_hw *hw)
+{
+	struct krait_mux_clk *mux = to_krait_mux_clk(hw);
+
+	__krait_mux_set_sel(mux, mux->safe_sel);
+}
+
 const struct clk_ops krait_mux_clk_ops = {
+	.enable = krait_mux_enable,
+	.disable = krait_mux_disable,
 	.set_parent = krait_mux_set_parent,
 	.get_parent = krait_mux_get_parent,
 	.determine_rate = __clk_mux_determine_rate_closest,
-- 
2.34.1