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From: Paul Kocialkowski <paulk@sys-base.io>
To: Andre Przywara <andre.przywara@arm.com>
Cc: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 08/14] clk: sunxi-ng: a523: add system mod clocks
Date: Tue, 5 May 2026 17:49:15 +0200	[thread overview]
Message-ID: <afoRe6DI4GJIVtg4@shepard> (raw)
In-Reply-To: <20250307002628.10684-9-andre.przywara@arm.com>

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Hi Andre,

On Fri 07 Mar 25, 00:26, Andre Przywara wrote:
> Add the clocks driving some core system related subsystems of the SoC:
> the "CE" crypto engine, the high speed timers, the DRAM and the associated
> MBUS clock, and the PCIe clock.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  drivers/clk/sunxi-ng/ccu-sun55i-a523.c | 135 +++++++++++++++++++++++++
>  1 file changed, 135 insertions(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c
> index 17a4ffc0b7f52..c59f3f789d052 100644
> --- a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c
> +++ b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c

[...]

> +static const struct clk_parent_data hstimer_parents[] = {
> +	{ .fw_name = "hosc" },
> +	{ .fw_name = "iosc" },
> +	{ .fw_name = "losc" },
> +	{ .hw = &pll_periph0_200M_clk.hw },
> +};
> +static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(hstimer0_clk, "hstimer0",
> +				       hstimer_parents, 0x730,
> +				       0, 0,	/* M */

I was looking at the A523 ccu code and see lots of
SUNXI_CCU_MP_DATA_WITH_MUX_GATE with no M.

Was there a particular reason for not using SUNXI_CCU_M_DATA_WITH_MUX_GATE
instead? It would surely be less confusing.

One difference would be that the ops end up as ccu_div_ops instead of
ccu_mp_ops. Do you need ccu_mp_ops for some reason?

Thanks,

Paul

-- 
Paul Kocialkowski,

Independent contractor - sys-base - https://www.sys-base.io/
Free software developer - https://www.paulk.fr/

Expert in multimedia, graphics and embedded hardware support with Linux.

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  parent reply	other threads:[~2026-05-05 15:49 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-07  0:26 [PATCH v4 00/14] clk: sunxi-ng: add A523 clock support Andre Przywara
2025-03-07  0:26 ` [PATCH v4 01/14] clk: sunxi-ng: mp: introduce dual-divider clock Andre Przywara
2025-03-07  0:26 ` [PATCH v4 02/14] clk: sunxi-ng: mp: provide wrappers for setting feature flags Andre Przywara
2025-03-09  6:38   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 03/14] clk: sunxi-ng: Add support for update bit Andre Przywara
2025-03-07  0:26 ` [PATCH v4 04/14] dt-bindings: clk: sunxi-ng: document two Allwinner A523 CCUs Andre Przywara
2025-03-11 17:21   ` Rob Herring (Arm)
2025-03-07  0:26 ` [PATCH v4 05/14] clk: sunxi-ng: Add support for the A523/T527 CCU PLLs Andre Przywara
2025-03-09  6:43   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 06/14] clk: sunxi-ng: a523: Add support for bus clocks Andre Przywara
2025-03-07  0:26 ` [PATCH v4 07/14] clk: sunxi-ng: a523: add video mod clocks Andre Przywara
2025-03-09  6:49   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 08/14] clk: sunxi-ng: a523: add system " Andre Przywara
2025-03-09  6:50   ` Jernej Škrabec
2026-05-05 15:49   ` Paul Kocialkowski [this message]
2026-05-05 16:20     ` Andre Przywara
2026-05-05 16:24       ` Chen-Yu Tsai
2026-05-05 16:32       ` Paul Kocialkowski
2025-03-07  0:26 ` [PATCH v4 09/14] clk: sunxi-ng: a523: add interface " Andre Przywara
2025-03-09  6:53   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 10/14] clk: sunxi-ng: a523: add USB " Andre Przywara
2025-03-07  0:26 ` [PATCH v4 11/14] clk: sunxi-ng: a523: remaining " Andre Przywara
2025-03-09  6:54   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 12/14] clk: sunxi-ng: a523: add bus clock gates Andre Przywara
2025-03-09  6:57   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 13/14] clk: sunxi-ng: a523: add reset lines Andre Przywara
2025-03-09  7:00   ` Jernej Škrabec
2025-03-07  0:26 ` [PATCH v4 14/14] clk: sunxi-ng: add support for the A523/T527 PRCM CCU Andre Przywara
2025-03-09  7:03   ` Jernej Škrabec
2025-03-11 18:24 ` [PATCH v4 00/14] clk: sunxi-ng: add A523 clock support Chen-Yu Tsai
2025-03-12  4:03 ` Chen-Yu Tsai

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