From: Clark Wang <xiaoning.wang@nxp.com>
To: Aisheng Dong <aisheng.dong@nxp.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>
Cc: "kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>,
dl-linux-imx <linux-imx@nxp.com>,
"sumit.semwal@linaro.org" <sumit.semwal@linaro.org>,
"christian.koenig@amd.com" <christian.koenig@amd.com>,
"linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 05/11] i2c: imx-lpi2c: add debug message when i2c peripheral clk doesn't work
Date: Fri, 19 Mar 2021 07:07:19 +0000 [thread overview]
Message-ID: <AM6PR04MB5623984B4F80963E33793262F3689@AM6PR04MB5623.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <AM6PR04MB4966E686EEE0FE022996B26880689@AM6PR04MB4966.eurprd04.prod.outlook.com>
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> -----Original Message-----
> From: Aisheng Dong <aisheng.dong@nxp.com>
> Sent: Friday, March 19, 2021 12:57
> To: Clark Wang <xiaoning.wang@nxp.com>; shawnguo@kernel.org;
> s.hauer@pengutronix.de
> Cc: kernel@pengutronix.de; festevam@gmail.com; dl-linux-imx <linux-
> imx@nxp.com>; sumit.semwal@linaro.org; christian.koenig@amd.com;
> linux-i2c@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-
> kernel@vger.kernel.org
> Subject: RE: [PATCH 05/11] i2c: imx-lpi2c: add debug message when i2c
> peripheral clk doesn't work
>
> > From: Clark Wang <xiaoning.wang@nxp.com>
> > Sent: Wednesday, March 17, 2021 2:54 PM
> >
> > add debug message when i2c peripheral clk rate is 0, then directly
> > return -EINVAL.
> >
> > Signed-off-by: Gao Pan <pandy.gao@nxp.com>
> > Reviewed-by: Andy Duan <fugang.duan@nxp.com>
>
> Drop old review when patch is changed
>
> > ---
> > drivers/i2c/busses/i2c-imx-lpi2c.c | 7 ++++++-
> > 1 file changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/i2c/busses/i2c-imx-lpi2c.c
> > b/drivers/i2c/busses/i2c-imx-lpi2c.c
> > index e718bb6b2387..8f9dd3dd2951 100644
> > --- a/drivers/i2c/busses/i2c-imx-lpi2c.c
> > +++ b/drivers/i2c/busses/i2c-imx-lpi2c.c
> > @@ -209,7 +209,12 @@ static int lpi2c_imx_config(struct
> > lpi2c_imx_struct
> > *lpi2c_imx)
> >
> > lpi2c_imx_set_mode(lpi2c_imx);
> >
> > - clk_rate = clk_get_rate(lpi2c_imx->clk);
>
> I guess the kernel can't compile right before this patch because lpi2c_imx-
> >clk was Removed In former patch You need double check not break bisect
Oh, sorry, I miss this clk definition here.
I will fix this in V2.
>
> > + clk_rate = clk_get_rate(lpi2c_imx->clk_per);
> > + if (!clk_rate) {
> > + dev_dbg(&lpi2c_imx->adapter.dev, "clk_per rate is 0\n");
>
> s/dev_dbg/dev_err
Will change to dev_err.
Thanks.
Best Regards,
Clark Wang
>
> > + return -EINVAL;
> > + }
> > +
> > if (lpi2c_imx->mode == HS || lpi2c_imx->mode == ULTRA_FAST)
> > filt = 0;
> > else
> > --
> > 2.25.1
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next prev parent reply other threads:[~2021-03-19 7:10 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-17 6:53 [PATCH 00/11] i2c: imx-lpi2c: New features and bug fixes Clark Wang
2021-03-17 6:53 ` [PATCH 01/11] i2c: imx-lpi2c: directly retrun ISR when detect a NACK Clark Wang
2021-03-19 4:25 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 02/11] i2c: imx-lpi2c: add runtime pm support Clark Wang
2021-03-19 4:40 ` Aisheng Dong
2021-03-19 5:33 ` Clark Wang
2021-03-19 6:16 ` Clark Wang
2021-03-19 8:00 ` Clark Wang
2021-03-19 10:26 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 03/11] i2c: imx-lpi2c: add ipg clk for lpi2c driver Clark Wang
2021-03-19 4:46 ` Aisheng Dong
2021-03-19 6:23 ` Clark Wang
2021-03-19 9:18 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 04/11] i2c: imx-lpi2c: manage irq resource request/release in runtime pm Clark Wang
2021-03-19 4:53 ` Aisheng Dong
2021-03-19 7:03 ` Clark Wang
2021-03-19 10:12 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 05/11] i2c: imx-lpi2c: add debug message when i2c peripheral clk doesn't work Clark Wang
2021-03-19 4:56 ` Aisheng Dong
2021-03-19 7:07 ` Clark Wang [this message]
2021-03-17 6:53 ` [PATCH 06/11] i2c: imx-lpi2c: improve i2c driver probe priority Clark Wang
2021-03-19 5:05 ` Aisheng Dong
2021-03-19 5:38 ` Wolfram Sang
2021-03-19 7:39 ` [EXT] " Clark Wang
2021-03-17 6:53 ` [PATCH 07/11] i2c: imx-lpi2c: increase PM timeout to avoid operate clk frequently Clark Wang
2021-03-19 5:10 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 08/11] i2c: imx-lpi2c: add bus recovery feature Clark Wang
2021-03-19 5:11 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 09/11] i2c: imx-lpi2c: fix i2c timing issue Clark Wang
2021-03-19 5:15 ` Aisheng Dong
2021-03-19 7:21 ` Clark Wang
2021-03-17 6:53 ` [PATCH 10/11] i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle Clark Wang
2021-03-19 5:16 ` Aisheng Dong
2021-03-17 6:53 ` [PATCH 11/11] i2c: imx-lpi2c: add edma mode support Clark Wang
2021-03-19 5:28 ` Aisheng Dong
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