From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Frieder Schrempf <frieder.schrempf@exceet.de>
Cc: linux-mtd@lists.infradead.org, linux-spi@vger.kernel.org,
dwmw2@infradead.org, computersforpeace@gmail.com,
marek.vasut@gmail.com, richard@nod.at, miquel.raynal@bootlin.com,
broonie@kernel.org, david.wolfe@nxp.com, fabio.estevam@nxp.com,
prabhakar.kushwaha@nxp.com, yogeshnarayan.gaur@nxp.com,
han.xu@nxp.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 03/11] spi: Add a driver for the Freescale/NXP QuadSPI controller
Date: Wed, 30 May 2018 16:58:16 +0200 [thread overview]
Message-ID: <20180530165816.371dc39c@bbrezillon> (raw)
In-Reply-To: <1527686082-15142-4-git-send-email-frieder.schrempf@exceet.de>
Hi Frieder,
On Wed, 30 May 2018 15:14:32 +0200
Frieder Schrempf <frieder.schrempf@exceet.de> wrote:
> +
> +static const char *fsl_qspi_get_name(struct spi_mem *mem)
> +{
> + struct fsl_qspi *q = spi_controller_get_devdata(mem->spi->master);
> + struct device *dev = &mem->spi->dev;
> + const char *name;
> +
> + /*
> + * In order to keep mtdparts compatible with the old MTD driver at
> + * mtd/spi-nor/fsl-quadspi.c, we set a custom name derived from the
> + * platform_device of the controller.
> + */
> + if (of_get_available_child_count(q->dev->of_node) == 1)
> + name = dev_name(q->dev);
> + else
> + name = devm_kasprintf(dev, GFP_KERNEL,
> + "%s-%d", dev_name(q->dev),
> + mem->spi->chip_select);
> +
> + if (!name) {
> + dev_err(dev, "failed to get memory for custom flash name\n");
> + return dev_name(q->dev);
Hm, not sure that's what we want. We should probably fail when the
allocation fails.
How about letting ->get_name() return an error pointer or NULL in case
of error. With the other I made suggestion in my review of patch 1
(calling ->get_name() at probe time) you could refuse to probe the
device when ->get_name() fails.
> + }
> +
> + return name;
> +}
> +
Regards,
Boris
next prev parent reply other threads:[~2018-05-30 14:58 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1527686082-15142-1-git-send-email-frieder.schrempf@exceet.de>
2018-05-30 13:14 ` [PATCH 01/11] spi: spi-mem: Extend the SPI mem interface to set a custom memory name Frieder Schrempf
2018-05-30 14:32 ` Boris Brezillon
2018-05-30 15:12 ` Frieder Schrempf
2018-05-30 13:14 ` [PATCH 02/11] mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name Frieder Schrempf
2018-05-30 13:14 ` [PATCH 03/11] spi: Add a driver for the Freescale/NXP QuadSPI controller Frieder Schrempf
2018-05-30 13:50 ` Yogesh Narayan Gaur
2018-05-30 14:24 ` Boris Brezillon
2018-06-01 9:14 ` Frieder Schrempf
2018-05-30 14:58 ` Boris Brezillon [this message]
2018-05-30 15:13 ` Frieder Schrempf
2018-06-05 15:00 ` Boris Brezillon
2018-06-08 11:54 ` Yogesh Narayan Gaur
2018-06-08 12:51 ` Boris Brezillon
2018-06-11 6:31 ` Yogesh Narayan Gaur
2018-06-11 7:46 ` Boris Brezillon
2018-06-11 9:38 ` Yogesh Narayan Gaur
2018-06-11 10:16 ` Boris Brezillon
2018-06-11 10:21 ` Yogesh Narayan Gaur
2018-06-12 6:42 ` Yogesh Narayan Gaur
2018-06-12 7:13 ` Boris Brezillon
2018-06-12 8:51 ` Yogesh Narayan Gaur
2018-06-15 12:50 ` Boris Brezillon
2018-06-15 13:42 ` Yogesh Narayan Gaur
2018-06-15 13:55 ` Boris Brezillon
2018-06-15 13:58 ` Boris Brezillon
2018-06-18 13:32 ` Yogesh Narayan Gaur
2018-06-18 19:15 ` Boris Brezillon
2018-06-19 7:10 ` Yogesh Narayan Gaur
2018-06-19 7:28 ` Boris Brezillon
2018-06-19 8:31 ` Yogesh Narayan Gaur
2018-06-19 8:46 ` Boris Brezillon
2018-06-26 8:58 ` Frieder Schrempf
2018-06-08 20:27 ` Andy Shevchenko
2018-06-26 12:26 ` Frieder Schrempf
2018-06-26 13:18 ` Andy Shevchenko
2018-06-26 13:47 ` Boris Brezillon
2018-06-26 15:42 ` Andy Shevchenko
2018-06-18 19:27 ` Boris Brezillon
2018-05-30 13:14 ` [PATCH 04/11] dt-bindings: spi: Move and adjust the bindings for the fsl-qspi driver Frieder Schrempf
2018-05-30 15:06 ` Boris Brezillon
2018-05-30 15:14 ` Frieder Schrempf
2018-05-30 13:14 ` [PATCH 05/11] ARM: dts: Reflect change of FSL QSPI driver and remove unused properties Frieder Schrempf
2018-05-30 15:10 ` Boris Brezillon
2018-06-01 9:27 ` Frieder Schrempf
2018-05-30 13:14 ` [PATCH 06/11] arm64: " Frieder Schrempf
2018-05-30 13:14 ` [PATCH 07/11] ARM: defconfig: Use the new FSL QSPI driver under the SPI framework Frieder Schrempf
2018-05-30 13:14 ` [PATCH 08/11] mtd: fsl-quadspi: Remove the driver as it was replaced by spi-fsl-qspi.c Frieder Schrempf
2018-05-30 13:14 ` [PATCH 09/11] ARM: dts: ls1021a: Remove fsl,qspi-has-second-chip as it is not used Frieder Schrempf
2018-05-30 13:14 ` [PATCH 10/11] ARM64: dts: ls1046a: " Frieder Schrempf
2018-05-30 13:14 ` [PATCH 11/11] MAINTAINERS: Move the Freescale QSPI driver to the SPI framework Frieder Schrempf
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