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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Inès Varhol" <ines.varhol@telecom-paris.fr>,
	"Alistair Francis" <alistair@alistair23.me>,
	qemu-arm@nongnu.org,
	"Arnaud Minier" <arnaud.minier@telecom-paris.fr>,
	"Damien Hedde" <damien.hedde@dahe.fr>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Luc Michel" <luc@lmichel.fr>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH-for-9.0 v3 0/3] hw/clock: Propagate clock changes when STM32L4X5 MUX is updated
Date: Mon, 25 Mar 2024 16:28:23 +0100	[thread overview]
Message-ID: <20240325152827.73817-1-philmd@linaro.org> (raw)

Since v2:
- Simpler approach

Since v1:
- Rework API to only propagate when both clock_set
  and clock_set_mul_div modified the clock params
  (Peter & Luc).
- Use that in zynq_slcr.

Per https://www.qemu.org/docs/master/devel/clocks.html#clock-multiplier-and-divider-settings:

  Note that clock_set_mul_div() does not automatically call
  clock_propagate(). If you make a runtime change to the
  multiplier or divider you must call clock_propagate() yourself.

Fix what we forgot to do that in recent commit ec7d83acbd
("hw/misc/stm32l4x5_rcc: Add an internal clock multiplexer object")

Arnaud Minier (1):
  hw/misc/stm32l4x5_rcc: Propagate period when enabling a clock

Philippe Mathieu-Daudé (2):
  hw/clock: Let clock_set_mul_div() return a boolean value
  hw/misc/stm32l4x5_rcc: Inline clock_update() in clock_mux_update()

 docs/devel/clocks.rst   | 4 ++++
 include/hw/clock.h      | 4 +++-
 hw/core/clock.c         | 8 +++++++-
 hw/misc/stm32l4x5_rcc.c | 9 +++++++--
 4 files changed, 21 insertions(+), 4 deletions(-)

-- 
2.41.0



             reply	other threads:[~2024-03-25 15:29 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-25 15:28 Philippe Mathieu-Daudé [this message]
2024-03-25 15:28 ` [PATCH-for-9.0 v3 1/3] hw/clock: Let clock_set_mul_div() return a boolean value Philippe Mathieu-Daudé
2024-03-26  4:51   ` Alistair Francis
2024-03-25 15:28 ` [PATCH-for-9.0 v3 2/3] hw/misc/stm32l4x5_rcc: Inline clock_update() in clock_mux_update() Philippe Mathieu-Daudé
2024-03-26  4:53   ` Alistair Francis
2024-03-25 15:28 ` [PATCH-for-9.0 v3 3/3] hw/misc/stm32l4x5_rcc: Propagate period when enabling a clock Philippe Mathieu-Daudé
2024-03-26  4:54   ` Alistair Francis
2024-03-26 13:16 ` [PATCH-for-9.0 v3 0/3] hw/clock: Propagate clock changes when STM32L4X5 MUX is updated Philippe Mathieu-Daudé

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