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From: Lucas Stach <l.stach@pengutronix.de>
To: Robin Gong <yibin.gong@nxp.com>,
	"vkoul@kernel.org" <vkoul@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"broonie@kernel.org" <broonie@kernel.org>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"martin.fuzzey@flowbird.group" <martin.fuzzey@flowbird.group>,
	"u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>,
	"dan.j.williams@intel.com" <dan.j.williams@intel.com>,
	"matthias.schiffer@ew.tq-group.com" 
	<matthias.schiffer@ew.tq-group.com>,
	"frieder.schrempf@kontron.de" <frieder.schrempf@kontron.de>,
	"m.felsch@pengutronix.de" <m.felsch@pengutronix.de>,
	Clark Wang <xiaoning.wang@nxp.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v14 08/12] spi: imx: remove ERR009165 workaround on i.mx6ul
Date: Tue, 13 Jul 2021 11:30:01 +0200	[thread overview]
Message-ID: <695d47eb5dad9292d8f87e69ad1bccaa2e132a66.camel@pengutronix.de> (raw)
In-Reply-To: <VE1PR04MB66889D0BC546DE2580BF614089149@VE1PR04MB6688.eurprd04.prod.outlook.com>

Am Dienstag, dem 13.07.2021 um 09:12 +0000 schrieb Robin Gong:
> On 12/07/21 17:31 Lucas Stach <l.stach@pengutronix.de> wrote: 
> > Am Montag, dem 12.07.2021 um 03:48 +0000 schrieb Robin Gong:
> > > On 09/07/21 17:42 Lucas Stach <l.stach@pengutronix.de> wrote:
> > > > Am Mittwoch, dem 07.04.2021 um 23:30 +0800 schrieb Robin Gong:
> > > > > ERR009165 fixed on i.mx6ul/6ull/6sll. All other i.mx6/7 and
> > > > > i.mx8m/8mm still need this errata. Please refer to nxp official
> > > > > errata document from
> > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fww
> > > > w.n
> > xp.com%2F&amp;data=04%7C01%7Cyibin.gong%40nxp.com%7C48156bc93d
> > > > 
> > c84ac26e9d08d942bdc0ac%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%
> > > > 
> > 7C1%7C637614205017900475%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4
> > > > 
> > wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&a
> > > > 
> > mp;sdata=keYQubzt1jWrKhaxXr40RL41vzFuIn7x1Sasa3p%2F9Xo%3D&amp;res
> > > > erved=0 .
> > > > > 
> > > > > For removing workaround on those chips. Add new i.mx6ul type.
> > > > > 
> > > > > Signed-off-by: Robin Gong <yibin.gong@nxp.com>
> > > > > Acked-by: Mark Brown <broonie@kernel.org>
> > > > > ---
> > > > >  drivers/spi/spi-imx.c | 47
> > > > > +++++++++++++++++++++++++++++++++++++++++++----
> > > > >  1 file changed, 43 insertions(+), 4 deletions(-)
> > > > > 
> > > > > diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index
> > > > > cf235b9..d18ee25 100644
> > > > > --- a/drivers/spi/spi-imx.c
> > > > > +++ b/drivers/spi/spi-imx.c
> > > > > @@ -59,6 +59,7 @@ enum spi_imx_devtype {
> > > > >  	IMX35_CSPI,	/* CSPI on all i.mx except above */
> > > > >  	IMX51_ECSPI,	/* ECSPI on i.mx51 */
> > > > >  	IMX53_ECSPI,	/* ECSPI on i.mx53 and later */
> > > > > +	IMX6UL_ECSPI,	/* ERR009165 fix from i.mx6ul */
> > > > 
> > > > This patch could be a lot smaller if you didn't introduce a new
> > > > devtype. You could just use the IMX51_ECSPI in
> > > > imx6ul_ecspi_devtype_data, as all you care about as a relevant
> > > > difference is the tx_glitch_fixed property, which isn't tied to the devtype.
> > > I knew tx_glitch_fixed was enough but I still prefer to add new
> > > 'IMX6UL_ECSPI' because we can clearly choose the right IP which has
> > > fix the issue while legacy IMX51 if it's not fixed by dts.
> > > 
> > Sorry, I don't follow this reasoning. You are not using the new IMX6UL_ECSPI
> > devtype in any way in this patch, other than a single location, where you just
> > handle it the same as the IMX51_ECSPI devtype.
> Okay, will reuse IMX51_ECSPI as devtype, but will still keep "fsl,imx6ul-ecspi".
> 
That's exactly what I meant: have a "fsl,imx6ul-ecspi" compatible with
it's own imx6ul_ecspi_devtype_data, but reuse the IMX51_ECSPI devtype.

Glad we are on the same page now.

Regards,
Lucas



  reply	other threads:[~2021-07-13  9:30 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-07 15:30 [PATCH v14 00/12] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2021-04-07 15:30 ` [PATCH v14 01/12] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2021-04-07 15:30 ` [PATCH v14 02/12] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2021-04-07 15:30 ` [PATCH v14 03/12] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong
2021-04-07 15:30 ` [PATCH v14 04/12] dmaengine: imx-sdma: remove duplicated sdma_load_context Robin Gong
2021-04-07 15:30 ` [PATCH v14 05/12] dmaengine: dma: imx-sdma: add fw_loaded and is_ram_script Robin Gong
2021-07-09  9:24   ` Lucas Stach
2021-07-12  3:20     ` Robin Gong
2021-04-07 15:30 ` [PATCH v14 06/12] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2021-07-09  9:32   ` Lucas Stach
2021-04-07 15:30 ` [PATCH v14 07/12] spi: imx: fix ERR009165 Robin Gong
2021-07-09  9:35   ` Lucas Stach
2021-04-07 15:30 ` [PATCH v14 08/12] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2021-07-09  9:41   ` Lucas Stach
2021-07-12  3:48     ` Robin Gong
2021-07-12  9:30       ` Lucas Stach
2021-07-13  9:12         ` Robin Gong
2021-07-13  9:30           ` Lucas Stach [this message]
2021-04-07 15:30 ` [PATCH v14 09/12] dmaengine: imx-sdma: remove ERR009165 " Robin Gong
2021-07-09  9:44   ` Lucas Stach
2021-07-12  4:03     ` Robin Gong
2021-07-12  9:33       ` Lucas Stach
2021-07-13  9:14         ` Robin Gong
2021-04-07 15:30 ` [PATCH v14 10/12] dma: imx-sdma: add i.mx6ul compatible name Robin Gong
2021-04-07 15:30 ` [PATCH v14 11/12] dmaengine: imx-sdma: add uart rom script Robin Gong
2021-07-09  9:55   ` Lucas Stach
2021-04-07 15:30 ` [PATCH v14 12/12] dmaengine: imx-sdma: add terminated list for freed descriptor in worker Robin Gong
2021-04-12  9:39   ` Vinod Koul
2021-04-13  5:05     ` Robin Gong
2021-06-15  6:06   ` Vinod Koul
2021-07-09  9:55   ` Lucas Stach
2021-06-11 13:51 ` [PATCH v14 00/12] add ecspi ERR009165 for i.mx6/7 soc family Fabio Estevam
2021-06-15  1:55   ` Robin Gong
2021-06-15  6:07     ` Vinod Koul
2021-06-15  6:36       ` Robin Gong
2021-06-15 12:07         ` Vinod Koul
2021-06-15 14:10           ` Robin Gong
2021-06-16 10:16             ` Vinod Koul
2021-06-16 10:44               ` Robin Gong
2021-06-15  2:12 ` Fabio Estevam
2021-06-15  2:17   ` Robin Gong

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