Thread (6 messages) 6 messages, 2 authors, 2021-01-04
STALE2029d LANDED

[PATCH 1/3] clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: 2020-12-26 12:20:32
Also in: linux-amlogic, linux-clk, lkml
Subsystem: arm/amlogic meson soc clock framework, common clk framework, the rest · Maintainers: Neil Armstrong, Jerome Brunet, Michael Turquette, Stephen Boyd, Linus Torvalds

The "rate" parameter in meson_clk_pll_set_rate() contains the new rate.
Retrieve the old rate with clk_hw_get_rate() so we don't inifinitely try
to switch from the new rate to the same ratte again.

Fixes: 7a29a869434e8b ("clk: meson: Add support for Meson clock controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 drivers/clk/meson/clk-pll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index b17a13e9337c..9404609b5ebf 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -371,7 +371,7 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 	if (parent_rate == 0 || rate == 0)
 		return -EINVAL;
 
-	old_rate = rate;
+	old_rate = clk_hw_get_rate(hw);
 
 	ret = meson_clk_get_pll_settings(rate, parent_rate, &m, &n, pll);
 	if (ret)
-- 
2.29.2


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