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[PATCH-for-9.0?,v2,7/8] hw/misc/stm32l4x5_rcc: Propagate period when enabling a clock

Message ID 20240325133259.57235-8-philmd@linaro.org
State New
Headers show
Series hw/clock: Propagate clock changes when STM32L4X5 MUX is updated | expand

Commit Message

Philippe Mathieu-Daudé March 25, 2024, 1:32 p.m. UTC 
From: Arnaud Minier <arnaud.minier@telecom-paris.fr>

The "clock_set_mul_div" function doesn't propagate the clock period
to the children if it is changed (e.g. by enabling/disabling a clock
multiplexer).
This was overlooked during the implementation due to late changes.

This commit propagates the change if the multiplier or divider changes.

Fixes: ec7d83acbd ("hw/misc/stm32l4x5_rcc: Add an internal clock multiplexer object")
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-ID: <20240317103918.44375-2-arnaud.minier@telecom-paris.fr>
[PMD: Pass argument to clock_set_mul_div()]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/misc/stm32l4x5_rcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/hw/misc/stm32l4x5_rcc.c b/hw/misc/stm32l4x5_rcc.c
index 8852b434db..166c727e52 100644
--- a/hw/misc/stm32l4x5_rcc.c
+++ b/hw/misc/stm32l4x5_rcc.c
@@ -61,7 +61,7 @@  static void clock_mux_update(RccClockMuxState *mux, bool bypass_source)
         freq_multiplier = mux->divider;
     }
 
-    clock_set_mul_div(mux->out, freq_multiplier, mux->multiplier, NULL);
+    clock_set_mul_div(mux->out, freq_multiplier, mux->multiplier, &clk_changed);
     clock_set(mux->out, clock_get(current_source), &clk_changed);
     if (clk_changed) {
         clock_propagate(mux->out);