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Date: Mon, 17 Feb 2020 18:09:08 +0800 From: "Ramuthevar, Vadivel MuruganX" <vadivel.muruganx.ramuthevar@...ux.intel.com> To: Mark Brown <broonie@...nel.org>, Simon Goldschmidt <simon.k.r.goldschmidt@...il.com> Cc: linux-kernel <linux-kernel@...r.kernel.org>, linux-spi@...r.kernel.org, Vignesh R <vigneshr@...com>, Mark Rutland <mark.rutland@....com>, Rob Herring <robh+dt@...nel.org>, "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, dan.carpenter@...cle.com, cheol.yong.kim@...el.com, qi-ming.wu@...el.com Subject: Re: [PATCH v9 0/2] spi: cadence-quadpsi: Add support for the Cadence QSPI controller Hi Mark, On 14/2/2020 8:11 PM, Mark Brown wrote: > On Fri, Feb 14, 2020 at 01:02:22PM +0100, Simon Goldschmidt wrote: >> On Fri, Feb 14, 2020 at 12:46 PM Ramuthevar,Vadivel MuruganX >> <vadivel.muruganx.ramuthevar@...ux.intel.com> wrote: >>> Add support for the Cadence QSPI controller. This controller is >>> present in the Intel Lightning Mountain(LGM) SoCs, Altera and TI SoCs. >>> This driver has been tested on the Intel LGM SoCs. >> This is v9 and still, none of the altera maintainers are on CC? >> How will it be ensured that this doesn't break altera if it is merged? > Given that this is a new driver I'd be very surprised if it broke other > users? I can imagine it might not work for them and it would definitely > be much better to get their review but it shouldn't be any worse than > the current lack of support. Thanks for the clarification, Please kindly see the below discussion b/w Vignesh and Dinh in the earlier mail chain. [Vignesh] The legacy driver under drivers/mtd/spi-nor will be removed as we cannot support both SPI NOR and SPI NAND with single driver if its under spi-nor. New driver should be functionally equivalent to existing one. So I suggest you test this driver on legcay SoCFPGA products. [Dinh] I don't have the original patch series, but will monitor going forward. As long as the new driver does not break legacy SoCFPGA products that use the cadence-quadspi driver then it should be ok. Regards vadivel
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