All of lore.kernel.org
 help / color / mirror / Atom feed
From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Oleksandr Ocheretnyi -X (oocheret - GLOBALLOGIC INC at Cisco)"
	<oocheret@cisco.com>
Cc: "tudor.ambarus@microchip.com" <tudor.ambarus@microchip.com>,
	"miquel.raynal@bootlin.com" <miquel.raynal@bootlin.com>,
	"p.yadav@ti.com" <p.yadav@ti.com>,
	"michael@walle.cc" <michael@walle.cc>,
	"richard@nod.at" <richard@nod.at>,
	"vigneshr@ti.com" <vigneshr@ti.com>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
	"mauro.lima@eclypsium.com" <mauro.lima@eclypsium.com>,
	"lee.jones@linaro.org" <lee.jones@linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"xe-linux-external(mailer list)" <xe-linux-external@cisco.com>
Subject: Re: [PATCH] mtd: spi-nor: handle unsupported FSR opcodes properly
Date: Wed, 15 Jun 2022 12:49:22 +0300	[thread overview]
Message-ID: <YqmrIsOEsFoKTwEK@lahna> (raw)
In-Reply-To: <BYAPR11MB27570F2863F7BCDFE629B3DFCDAA9@BYAPR11MB2757.namprd11.prod.outlook.com>

Hi,

On Tue, Jun 14, 2022 at 05:56:54PM +0000, Oleksandr Ocheretnyi -X (oocheret - GLOBALLOGIC INC at Cisco) wrote:
>    Hello Mika,
> 
>    in my case (I work with memory chip n25q128a13 for recent kernels) I'm
>    getting return value -ENOTSUPP from spi_mem_exec_op() call in the
>    micron_st_nor_read_fsr() method
>    [[1]https://elixir.bootlin.com/linux/v5.19-rc2/source/drivers/spi/spi-m
>    em.c#L326]. So I decided to provide the same errorcode to
>    intel_spi_hw_cycle() method because older kernel versions throw the
>    error there. It is fine to use -EOPNOTSUPP return value instead.
> 
>    I suspect we need to cover both cases to check -ENOTSUPP as well as
>    -EOPNOTSUPP to let the driver work properly.
> 
>    if (ret == -ENOTSUPP || ret == -EOPNOTSUPP)

I think we should follow the same in the Intel driver and return
-ENOTSUPP too.

______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID (diff)
From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Oleksandr Ocheretnyi -X (oocheret - GLOBALLOGIC INC at Cisco)" 
	<oocheret@cisco.com>
Cc: "tudor.ambarus@microchip.com" <tudor.ambarus@microchip.com>,
	"miquel.raynal@bootlin.com" <miquel.raynal@bootlin.com>,
	"p.yadav@ti.com" <p.yadav@ti.com>,
	"michael@walle.cc" <michael@walle.cc>,
	"richard@nod.at" <richard@nod.at>,
	"vigneshr@ti.com" <vigneshr@ti.com>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
	"mauro.lima@eclypsium.com" <mauro.lima@eclypsium.com>,
	"lee.jones@linaro.org" <lee.jones@linaro.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"xe-linux-external(mailer list)" <xe-linux-external@cisco.com>
Subject: Re: [PATCH] mtd: spi-nor: handle unsupported FSR opcodes properly
Date: Wed, 15 Jun 2022 12:49:22 +0300	[thread overview]
Message-ID: <YqmrIsOEsFoKTwEK@lahna> (raw)
In-Reply-To: <BYAPR11MB27570F2863F7BCDFE629B3DFCDAA9@BYAPR11MB2757.namprd11.prod.outlook.com>

Hi,

On Tue, Jun 14, 2022 at 05:56:54PM +0000, Oleksandr Ocheretnyi -X (oocheret - GLOBALLOGIC INC at Cisco) wrote:
>    Hello Mika,
> 
>    in my case (I work with memory chip n25q128a13 for recent kernels) I'm
>    getting return value -ENOTSUPP from spi_mem_exec_op() call in the
>    micron_st_nor_read_fsr() method
>    [[1]https://elixir.bootlin.com/linux/v5.19-rc2/source/drivers/spi/spi-m
>    em.c#L326]. So I decided to provide the same errorcode to
>    intel_spi_hw_cycle() method because older kernel versions throw the
>    error there. It is fine to use -EOPNOTSUPP return value instead.
> 
>    I suspect we need to cover both cases to check -ENOTSUPP as well as
>    -EOPNOTSUPP to let the driver work properly.
> 
>    if (ret == -ENOTSUPP || ret == -EOPNOTSUPP)

I think we should follow the same in the Intel driver and return
-ENOTSUPP too.

  parent reply	other threads:[~2022-06-15  9:53 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <BYAPR11MB27570C5DC510D0F37FC106E4CDF69@BYAPR11MB2757.namprd11.prod.outlook.com>
2022-04-25  7:55 ` mtd: spi-nor: fatal issue during the mtd_erase() calls mika.westerberg
2022-04-25  7:55   ` mika.westerberg
2022-06-10 19:15   ` [PATCH] mtd: spi-nor: handle unsupported FSR opcodes properly Oleksandr Ocheretnyi
2022-06-10 19:15     ` Oleksandr Ocheretnyi
2022-06-13  6:18     ` Mika Westerberg
2022-06-13  6:18       ` Mika Westerberg
     [not found]       ` <BYAPR11MB27570F2863F7BCDFE629B3DFCDAA9@BYAPR11MB2757.namprd11.prod.outlook.com>
2022-06-15  9:49         ` Mika Westerberg [this message]
2022-06-15  9:49           ` Mika Westerberg
2022-06-15 18:10           ` Michael Walle
2022-06-15 18:10             ` Michael Walle
2022-06-15 19:11             ` [PATCH v2] " Oleksandr Ocheretnyi
2022-06-15 19:11               ` Oleksandr Ocheretnyi
2022-06-15 19:25               ` Mark Brown
2022-06-15 19:25                 ` Mark Brown
2022-06-16  5:31               ` Mika Westerberg
2022-06-16  5:31                 ` Mika Westerberg
     [not found]                 ` <BYAPR11MB2757B1146457E3860389F4D1CDAC9@BYAPR11MB2757.namprd11.prod.outlook.com>
2022-06-16 10:35                   ` Mika Westerberg
2022-06-16 10:35                     ` Mika Westerberg
2022-06-16 12:14                     ` Oleksandr Ocheretnyi
2022-06-16 12:14                       ` Oleksandr Ocheretnyi
2022-06-16 12:33                       ` Mika Westerberg
2022-06-16 12:33                         ` Mika Westerberg
     [not found]                         ` <BYAPR11MB2757CEBE99C3A0861928CD43CDAC9@BYAPR11MB2757.namprd11.prod.outlook.com>
2022-06-16 12:59                           ` Mika Westerberg
2022-06-16 12:59                             ` Mika Westerberg
     [not found]                             ` <BYAPR11MB2757BD90C63B9F6A31E0600ACDAC9@BYAPR11MB2757.namprd11.prod.outlook.com>
2022-06-17  5:04                               ` Mika Westerberg
2022-06-17  5:04                                 ` Mika Westerberg
2022-07-19  9:12                     ` Tudor.Ambarus
2022-07-19  9:12                       ` Tudor.Ambarus
2022-06-16  5:29             ` [PATCH] " Mika Westerberg
2022-06-16  5:29               ` Mika Westerberg

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=YqmrIsOEsFoKTwEK@lahna \
    --to=mika.westerberg@linux.intel.com \
    --cc=broonie@kernel.org \
    --cc=lee.jones@linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=linux-spi@vger.kernel.org \
    --cc=mauro.lima@eclypsium.com \
    --cc=michael@walle.cc \
    --cc=miquel.raynal@bootlin.com \
    --cc=oocheret@cisco.com \
    --cc=p.yadav@ti.com \
    --cc=richard@nod.at \
    --cc=tudor.ambarus@microchip.com \
    --cc=vigneshr@ti.com \
    --cc=xe-linux-external@cisco.com \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.