From: Pavel Machek <pavel@denx.de>
To: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Cc: cip-dev@lists.cip-project.org,
Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
Pavel Machek <pavel@denx.de>,
Biju Das <biju.das.jz@bp.renesas.com>
Subject: Re: [PATCH 5.10.y-cip 23/24] clk: renesas: rzg2l: Add support to handle coupled clocks
Date: Fri, 17 Dec 2021 11:38:27 +0100 [thread overview]
Message-ID: <20211217103827.GC17079@amd> (raw)
In-Reply-To: <20211216125446.15451-24-prabhakar.mahadev-lad.rj@bp.renesas.com>
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Hi!
> From: Biju Das <biju.das.jz@bp.renesas.com>
>
> commit 32897e6fff196a5de4981030466ae391dfe56c7b upstream.
>
> The AXI and CHI clocks use the same register bit for controlling clock
> output. Add a new clock type for coupled clocks, which sets the
> CPG_CLKON_ETH.CLK[01]_ON bit when at least one clock is enabled, and
> clears the bit only when both clocks are disabled.
So the clocks can have different properties (frequency?), but can only
be enabled/disabled together? So we can't handle them as one clock?
Best regards,
Pavel
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DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
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next prev parent reply other threads:[~2021-12-17 10:38 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-16 12:54 [PATCH 5.10.y-cip 00/24] Add CPG and initial DTS/I for Renesas RZ/G2L SoC + SMARC EVK Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 01/24] dt-bindings: serial: renesas,scif: Document r9a07g044 bindings Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 02/24] serial: sh-sci: Add support for RZ/G2L SoC Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 03/24] dt-bindings: clock: renesas: Document RZ/G2L SoC CPG driver Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 04/24] dt-bindings: clock: Add r9a07g044 CPG Clock Definitions Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 05/24] clk: renesas: Add CPG core wrapper for RZ/G2L SoC Lad Prabhakar
2021-12-17 10:10 ` Pavel Machek
2021-12-17 11:03 ` Prabhakar Mahadev Lad
2021-12-16 12:54 ` [PATCH 5.10.y-cip 06/24] clk: renesas: Add support for R9A07G044 SoC Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 07/24] clk: renesas: r9a07g044: Rename divider table Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 08/24] clk: renesas: r9a07g044: Fix P1 Clock Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 09/24] clk: renesas: r9a07g044: Add P2 Clock support Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 10/24] clk: renesas: rzg2l: Add multi clock PM support Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 11/24] arm64: dts: renesas: Add initial DTSI for RZ/G2{L,LC} SoC's Lad Prabhakar
2021-12-17 10:19 ` Pavel Machek
2021-12-17 11:11 ` Prabhakar Mahadev Lad
2021-12-16 12:54 ` [PATCH 5.10.y-cip 12/24] arm64: dts: renesas: Add initial device tree for RZ/G2L SMARC EVK Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 13/24] arm64: dts: renesas: r9a07g044: Add SYSC node Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 14/24] dt-bindings: clock: r9a07g044-cpg: Update clock/reset definitions Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 15/24] clk: renesas: rzg2l: Remove unneeded semicolon Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 16/24] clk: renesas: rzg2l: Fix return value and unused assignment Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 17/24] clk: renesas: rzg2l: Fix a double free on error Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 18/24] clk: renesas: rzg2l: Avoid mixing error pointers and NULL Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 19/24] clk: renesas: rzg2l: Fix off-by-one check in rzg2l_cpg_clk_src_twocell_get() Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 20/24] clk: renesas: Rename renesas-rzg2l-cpg.[ch] to rzg2l-cpg.[ch] Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 21/24] clk: mux: provide devm_clk_hw_register_mux() Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 22/24] clk: renesas: rzg2l: Add support to handle MUX clocks Lad Prabhakar
2021-12-16 12:54 ` [PATCH 5.10.y-cip 23/24] clk: renesas: rzg2l: Add support to handle coupled clocks Lad Prabhakar
2021-12-17 10:38 ` Pavel Machek [this message]
2021-12-17 11:29 ` Prabhakar Mahadev Lad
2021-12-16 12:54 ` [PATCH 5.10.y-cip 24/24] clk: renesas: rzg2l: Fix clk status function Lad Prabhakar
2021-12-17 7:42 ` [cip-dev] [PATCH 5.10.y-cip 00/24] Add CPG and initial DTS/I for Renesas RZ/G2L SoC + SMARC EVK nobuhiro1.iwamatsu
2021-12-17 10:39 ` Pavel Machek
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