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From: Peng Fan <peng.fan@oss.nxp.com>
To: Marek Vasut <marek.vasut+renesas@mailbox.org>
Cc: u-boot@lists.denx.de, Peng Fan <peng.fan@nxp.com>,
	Alice Guo <alice.guo@nxp.com>,
	Patrice Chotard <patrice.chotard@foss.st.com>,
	Patrick Delaunay <patrick.delaunay@foss.st.com>,
	Sean Anderson <seanga2@gmail.com>, Tom Rini <trini@konsulko.com>,
	Valentin Caron <valentin.caron@foss.st.com>,
	Vinh Nguyen <vinh.nguyen.xz@renesas.com>
Subject: Re: [PATCH v2 4/4] clk: scmi: Defer issue of SCMI_CLOCK_ATTRIBUTES
Date: Fri, 7 Nov 2025 20:16:50 +0800	[thread overview]
Message-ID: <aQ3jMu4dW61RgbWX@nxa18884-linux> (raw)
In-Reply-To: <20251107030352.475169-4-marek.vasut+renesas@mailbox.org>

Hi Marek,

On Fri, Nov 07, 2025 at 04:01:26AM +0100, Marek Vasut wrote:
>Instead of resolving clock control flags using SCMI_CLOCK_ATTRIBUTES
>during probe for each and every clock, resolve the clock control
>flags using SCMI_CLOCK_ATTRIBUTES when the clock control flags are
>first used. Because most clock are never used by U-Boot, this allows
>reducing the amount of SCMI_CLOCK_ATTRIBUTES considerably, and this
>improve probe time of the scmi clock driver and U-Boot start up time.
>
>On Renesas X5H, with 1700+ SCMI clock, the boot time improved by 1.7s .
>
> 
> static int scmi_clk_get_ctrl_flags(struct clk *clk, u32 *ctrl_flags)
> {
>+	struct udevice *dev = clk->dev->parent;

I will change this to "clk->dev", otherwise there is CI failure.

No need to use clk->dev->parent here. The core code will
find out the scmi root device.

No need send v3, I could patch it in tree if no objections.

Thanks,
Peng.

> 	struct clk_scmi *clkscmi;
>+	u32 attributes;
> 	struct clk *c;
> 	int ret;

  reply	other threads:[~2025-11-07 14:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-07  3:01 [PATCH v2 1/4] clk: scmi: Bulk allocate all sub-driver instance data Marek Vasut
2025-11-07  3:01 ` [PATCH v2 2/4] clk: scmi: Factor out clock control flags resolution Marek Vasut
2025-11-07  3:01 ` [PATCH v2 3/4] clk: scmi: Postpone clock name resolution Marek Vasut
2025-11-07  3:01 ` [PATCH v2 4/4] clk: scmi: Defer issue of SCMI_CLOCK_ATTRIBUTES Marek Vasut
2025-11-07 12:16   ` Peng Fan [this message]
2025-11-07 23:45     ` Marek Vasut
2025-11-08  8:02       ` Peng Fan
2025-11-09  1:38         ` Marek Vasut
2025-11-07  7:15 ` [PATCH v2 1/4] clk: scmi: Bulk allocate all sub-driver instance data Peng Fan (OSS)

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