diff mbox series

[v4,10/16] clk: qcom: clk-rcg: add clk_rcg_floor_ops ops

Message ID 20220217235703.26641-11-ansuelsmth@gmail.com
State New
Headers show
Series Multiple addition and improvement to ipq8064 gcc | expand

Commit Message

Christian Marangi Feb. 17, 2022, 11:56 p.m. UTC 
Add clk_rcg_floor_ops for clock that can't provide a stable freq and
require to use a floor freq to provide the requested frequency.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
 drivers/clk/qcom/clk-rcg.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
diff mbox series

Patch

diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c
index a9d181d6be21..88845baa7f84 100644
--- a/drivers/clk/qcom/clk-rcg.c
+++ b/drivers/clk/qcom/clk-rcg.c
@@ -526,6 +526,19 @@  static int clk_rcg_set_rate(struct clk_hw *hw, unsigned long rate,
 	return __clk_rcg_set_rate(rcg, f);
 }
 
+static int clk_rcg_set_floor_rate(struct clk_hw *hw, unsigned long rate,
+				  unsigned long parent_rate)
+{
+	struct clk_rcg *rcg = to_clk_rcg(hw);
+	const struct freq_tbl *f;
+
+	f = qcom_find_freq_floor(rcg->freq_tbl, rate);
+	if (!f)
+		return -EINVAL;
+
+	return __clk_rcg_set_rate(rcg, f);
+}
+
 static int clk_rcg_bypass_set_rate(struct clk_hw *hw, unsigned long rate,
 				unsigned long parent_rate)
 {
@@ -816,6 +829,17 @@  const struct clk_ops clk_rcg_ops = {
 };
 EXPORT_SYMBOL_GPL(clk_rcg_ops);
 
+const struct clk_ops clk_rcg_floor_ops = {
+	.enable = clk_enable_regmap,
+	.disable = clk_disable_regmap,
+	.get_parent = clk_rcg_get_parent,
+	.set_parent = clk_rcg_set_parent,
+	.recalc_rate = clk_rcg_recalc_rate,
+	.determine_rate = clk_rcg_determine_rate,
+	.set_rate = clk_rcg_set_floor_rate,
+};
+EXPORT_SYMBOL_GPL(clk_rcg_floor_ops);
+
 const struct clk_ops clk_rcg_bypass_ops = {
 	.enable = clk_enable_regmap,
 	.disable = clk_disable_regmap,