LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Aisheng Dong <aisheng.dong@nxp.com>
To: Peng Fan <peng.fan@nxp.com>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	Leonard Crestez <leonard.crestez@nxp.com>,
	"sboyd@kernel.org" <sboyd@kernel.org>,
	Abel Vesa <abel.vesa@nxp.com>
Cc: "kernel@pengutronix.de" <kernel@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>,
	dl-linux-imx <linux-imx@nxp.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Anson Huang <anson.huang@nxp.com>,
	Daniel Baluta <daniel.baluta@nxp.com>,
	"aford173@gmail.com" <aford173@gmail.com>,
	Jacky Bai <ping.bai@nxp.com>, Jun Li <jun.li@nxp.com>,
	"l.stach@pengutronix.de" <l.stach@pengutronix.de>,
	"andrew.smirnov@gmail.com" <andrew.smirnov@gmail.com>,
	"agx@sigxcpu.org" <agx@sigxcpu.org>,
	"angus@akkea.ca" <angus@akkea.ca>,
	"heiko@sntech.de" <heiko@sntech.de>,
	Andy Duan <fugang.duan@nxp.com>,
	"linux-clk@vger.kernel.org" <linux-clk@vger.kernel.org>
Subject: RE: [PATCH V2 02/10] clk: imx8m: drop clk_hw_set_parent for A53
Date: Sun, 26 Apr 2020 03:54:32 +0000	[thread overview]
Message-ID: <AM6PR04MB49667AF484D4609B5B5436B080AE0@AM6PR04MB4966.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <1584008384-11578-3-git-send-email-peng.fan@nxp.com>

> From: Peng Fan <peng.fan@nxp.com>
> Sent: Thursday, March 12, 2020 6:20 PM
> 
> The parent settings have been moved to dtsi, we no need to set parent here. And
> clk_hw_set_parent will trigger lockdep warning, because this api not have
> prepare_lock.
> 
> Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>

For the patch:
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>

BTW, What kind of lockdep warning? 
Do you mean it's generic issue that we can't use clk_hw_set_parent in clock driver?

Regards
Aisheng

> ---
>  drivers/clk/imx/clk-imx8mm.c | 3 ---
>  drivers/clk/imx/clk-imx8mn.c | 3 ---
>  drivers/clk/imx/clk-imx8mp.c | 3 ---
>  drivers/clk/imx/clk-imx8mq.c | 3 ---
>  4 files changed, 12 deletions(-)
> 
> diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c index
> 925670438f23..5435042a06e3 100644
> --- a/drivers/clk/imx/clk-imx8mm.c
> +++ b/drivers/clk/imx/clk-imx8mm.c
> @@ -614,9 +614,6 @@ static int imx8mm_clocks_probe(struct
> platform_device *pdev)
>  					   hws[IMX8MM_ARM_PLL_OUT]->clk,
>  					   hws[IMX8MM_CLK_A53_DIV]->clk);
> 
> -	clk_hw_set_parent(hws[IMX8MM_CLK_A53_SRC],
> hws[IMX8MM_SYS_PLL1_800M]);
> -	clk_hw_set_parent(hws[IMX8MM_CLK_A53_CORE],
> hws[IMX8MM_ARM_PLL_OUT]);
> -
>  	imx_check_clk_hws(hws, IMX8MM_CLK_END);
> 
>  	ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data);
> diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c index
> 0bc7070235bd..6cac6ca03e12 100644
> --- a/drivers/clk/imx/clk-imx8mn.c
> +++ b/drivers/clk/imx/clk-imx8mn.c
> @@ -565,9 +565,6 @@ static int imx8mn_clocks_probe(struct platform_device
> *pdev)
>  					   hws[IMX8MN_ARM_PLL_OUT]->clk,
>  					   hws[IMX8MN_CLK_A53_DIV]->clk);
> 
> -	clk_hw_set_parent(hws[IMX8MN_CLK_A53_SRC],
> hws[IMX8MN_SYS_PLL1_800M]);
> -	clk_hw_set_parent(hws[IMX8MN_CLK_A53_CORE],
> hws[IMX8MN_ARM_PLL_OUT]);
> -
>  	imx_check_clk_hws(hws, IMX8MN_CLK_END);
> 
>  	ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data);
> diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c index
> 41469e2cc3de..e05ec56df285 100644
> --- a/drivers/clk/imx/clk-imx8mp.c
> +++ b/drivers/clk/imx/clk-imx8mp.c
> @@ -735,9 +735,6 @@ static int imx8mp_clocks_probe(struct platform_device
> *pdev)
>  					     hws[IMX8MP_ARM_PLL_OUT]->clk,
>  					     hws[IMX8MP_CLK_A53_DIV]->clk);
> 
> -	clk_hw_set_parent(hws[IMX8MP_CLK_A53_SRC],
> hws[IMX8MP_SYS_PLL1_800M]);
> -	clk_hw_set_parent(hws[IMX8MP_CLK_A53_CORE],
> hws[IMX8MP_ARM_PLL_OUT]);
> -
>  	imx_check_clk_hws(hws, IMX8MP_CLK_END);
> 
>  	of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data); diff
> --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c index
> fdc68db68de5..201c7bbb201f 100644
> --- a/drivers/clk/imx/clk-imx8mq.c
> +++ b/drivers/clk/imx/clk-imx8mq.c
> @@ -599,9 +599,6 @@ static int imx8mq_clocks_probe(struct platform_device
> *pdev)
>  					   hws[IMX8MQ_ARM_PLL_OUT]->clk,
>  					   hws[IMX8MQ_CLK_A53_DIV]->clk);
> 
> -	clk_hw_set_parent(hws[IMX8MQ_CLK_A53_SRC],
> hws[IMX8MQ_SYS1_PLL_800M]);
> -	clk_hw_set_parent(hws[IMX8MQ_CLK_A53_CORE],
> hws[IMX8MQ_ARM_PLL_OUT]);
> -
>  	imx_check_clk_hws(hws, IMX8MQ_CLK_END);
> 
>  	err = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data);
> --
> 2.16.4


  reply	other threads:[~2020-04-26  3:54 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-12 10:19 [PATCH V2 00/10] clk: imx: fixes and improve for i.MX8M peng.fan
2020-03-12 10:19 ` [PATCH V2 01/10] arm64: dts: imx8m: assign clocks for A53 peng.fan
2020-04-26  3:51   ` Aisheng Dong
2020-03-12 10:19 ` [PATCH V2 02/10] clk: imx8m: drop clk_hw_set_parent " peng.fan
2020-04-26  3:54   ` Aisheng Dong [this message]
2020-03-12 10:19 ` [PATCH V2 03/10] clk: imx: imx8mp: fix pll mux bit peng.fan
2020-04-26  4:23   ` Aisheng Dong
2020-03-12 10:19 ` [PATCH V2 04/10] clk: imx8mp: Define gates for pll1/2 fixed dividers peng.fan
2020-04-26  4:29   ` Aisheng Dong
2020-03-12 10:19 ` [PATCH V2 05/10] clk: imx8mp: use imx8m_clk_hw_composite_core to simplify code peng.fan
2020-04-26  4:38   ` Aisheng Dong
2020-04-27  8:57     ` Peng Fan
2020-03-12 10:19 ` [PATCH V2 06/10] clk: imx8m: migrate A53 clk root to use composite core peng.fan
2020-04-26  4:43   ` Aisheng Dong
2020-04-27  8:58     ` Peng Fan
2020-03-12 10:19 ` [PATCH V2 07/10] clk: imx: add mux ops for i.MX8M composite clk peng.fan
2020-04-24 19:29   ` Leonard Crestez
2020-04-27  9:15     ` Peng Fan
2020-04-27 19:34       ` Leonard Crestez
2020-04-28  1:08         ` Peng Fan
2020-04-26  5:08   ` Aisheng Dong
2020-04-27  9:11     ` Peng Fan
2020-04-30 10:00       ` Abel Vesa
2020-04-30 12:56         ` Peng Fan
2020-03-12 10:19 ` [PATCH V2 08/10] clk: imx: add imx8m_clk_hw_composite_bus peng.fan
2020-03-12 10:19 ` [PATCH V2 09/10] clk: imx: use imx8m_clk_hw_composite_bus for i.MX8M bus clk slice peng.fan
2020-03-12 10:19 ` [PATCH V2 10/10] clk: imx8mp: mark memrepair clock as critical peng.fan
2020-03-19 10:04 ` [PATCH V2 00/10] clk: imx: fixes and improve for i.MX8M Peng Fan
2020-04-18 13:45 ` Peng Fan
2020-04-24 19:30   ` Leonard Crestez

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=AM6PR04MB49667AF484D4609B5B5436B080AE0@AM6PR04MB4966.eurprd04.prod.outlook.com \
    --to=aisheng.dong@nxp.com \
    --cc=abel.vesa@nxp.com \
    --cc=aford173@gmail.com \
    --cc=agx@sigxcpu.org \
    --cc=andrew.smirnov@gmail.com \
    --cc=angus@akkea.ca \
    --cc=anson.huang@nxp.com \
    --cc=daniel.baluta@nxp.com \
    --cc=festevam@gmail.com \
    --cc=fugang.duan@nxp.com \
    --cc=heiko@sntech.de \
    --cc=jun.li@nxp.com \
    --cc=kernel@pengutronix.de \
    --cc=l.stach@pengutronix.de \
    --cc=leonard.crestez@nxp.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-clk@vger.kernel.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peng.fan@nxp.com \
    --cc=ping.bai@nxp.com \
    --cc=s.hauer@pengutronix.de \
    --cc=sboyd@kernel.org \
    --cc=shawnguo@kernel.org \
    --subject='RE: [PATCH V2 02/10] clk: imx8m: drop clk_hw_set_parent for A53' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).