From: Shawn Guo <shawnguo@kernel.org>
To: Trent Piepho <tpiepho@impinj.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>,
Sascha Hauer <kernel@pengutronix.de>,
linux-arm-kernel@lists.infradead.org, linux-spi@vger.kernel.org
Subject: Re: [PATCH v5] ARM: imx: Update spi_imx platform data to reflect current state
Date: Wed, 18 Apr 2018 11:12:00 +0800 [thread overview]
Message-ID: <20180418031159.GR25429@dragon> (raw)
In-Reply-To: <20180402200605.13050-1-tpiepho@impinj.com>
On Mon, Apr 02, 2018 at 01:06:05PM -0700, Trent Piepho wrote:
> The docs for the spi_imx platform data still refer to a -32 offset used to
> specify a native chip select. This was removed in commit 602c8f4485cd
> ("spi: imx: fix use of native chip-selects with devicetree") and no
> longer works as documented. Update documentation.
>
> The macro MXC_SPI_CS() is no longer is needed.
>
> If a board uses all native chip selects, then it's not necessary to
> specify a chip select array at all, as all native is the default (this is
> how device-tree configured SPI masters work too). Most of the spi-imx
> platform data users have their chip select arrays removed by this patch.
>
> This patch also fixes a bug in mx31moboard introduced in the '602 commit.
> When that board was updated in commit 901f26bce64a ("ARM: imx: set
> correct chip_select in platform setup") to reflect the SPI change, only
> SPI bus 2 was updated and SPI bus 1 was left with non-sequential chip
> selects. The mc13783 spi device on bus 1 had its chip select updated as
> if it were on bus 2.
>
> CC: Shawn Guo <shawnguo@kernel.org>
> CC: Sascha Hauer <kernel@pengutronix.de>
> CC: Fabio Estevam <fabio.estevam@nxp.com>
> Acked-by: Greg Ungerer <gerg@linux-m68k.org>
> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
> Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Applied, thanks.
prev parent reply other threads:[~2018-04-18 3:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-02 20:06 [PATCH v5] ARM: imx: Update spi_imx platform data to reflect current state Trent Piepho
2018-04-18 3:12 ` Shawn Guo [this message]
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