From: Miquel Raynal <miquel.raynal@bootlin.com> To: Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>, Tudor Ambarus <Tudor.Ambarus@microchip.com>, Pratyush Yadav <p.yadav@ti.com>, Michael Walle <michael@walle.cc>, <linux-mtd@lists.infradead.org>, Mark Brown <broonie@kernel.org>, <linux-spi@vger.kernel.org> Cc: Julien Su <juliensu@mxic.com.tw>, Jaime Liao <jaimeliao@mxic.com.tw>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Boris Brezillon <boris.brezillon@collabora.com>, Xiangsheng Hou <xiangsheng.hou@mediatek.com>, Miquel Raynal <miquel.raynal@bootlin.com> Subject: [PATCH v5 05/13] spi: spi-mem: Export the spi_mem_generic_supports_op() helper Date: Tue, 14 Dec 2021 12:41:32 +0100 [thread overview] Message-ID: <20211214114140.54629-6-miquel.raynal@bootlin.com> (raw) In-Reply-To: <20211214114140.54629-1-miquel.raynal@bootlin.com> The combination of checks against the number of supported operations is going to increase exponentially each time we add a new parameter. So far we only had a dtr parameter. Now we are introducing an ECC parameter. We need to make this helper available for drivers with specific needs, instead of creating yet another set of helpers each time we want to check something new. In the future if we see that many different drivers use the same parameter values, we might be tempted to create a specific helper for that. But for now, let's just make the generic one available. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- drivers/spi/spi-mem.c | 7 ++++--- include/linux/spi/spi-mem.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 4c6944d7b174..df2ec2c8ce31 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -160,9 +160,9 @@ static bool spi_mem_check_buswidth(struct spi_mem *mem, return true; } -static bool spi_mem_generic_supports_op(struct spi_mem *mem, - const struct spi_mem_op *op, - struct spi_mem_controller_caps *caps) +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps) { if (!caps->dtr) { if (op->cmd.dtr || op->addr.dtr || @@ -178,6 +178,7 @@ static bool spi_mem_generic_supports_op(struct spi_mem *mem, return spi_mem_check_buswidth(mem, op); } +EXPORT_SYMBOL_GPL(spi_mem_generic_supports_op); bool spi_mem_dtr_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index f365efcfb719..a17dd5035530 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -325,6 +325,10 @@ void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, const struct spi_mem_op *op, struct sg_table *sg); +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps); + bool spi_mem_default_supports_op(struct spi_mem *mem, const struct spi_mem_op *op); @@ -347,6 +351,14 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, { } +static inline +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps) +{ + return false; +} + static inline bool spi_mem_default_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Miquel Raynal <miquel.raynal@bootlin.com> To: Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>, Tudor Ambarus <Tudor.Ambarus@microchip.com>, Pratyush Yadav <p.yadav@ti.com>, Michael Walle <michael@walle.cc>, <linux-mtd@lists.infradead.org>, Mark Brown <broonie@kernel.org>, <linux-spi@vger.kernel.org> Cc: Julien Su <juliensu@mxic.com.tw>, Jaime Liao <jaimeliao@mxic.com.tw>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, Boris Brezillon <boris.brezillon@collabora.com>, Xiangsheng Hou <xiangsheng.hou@mediatek.com>, Miquel Raynal <miquel.raynal@bootlin.com> Subject: [PATCH v5 05/13] spi: spi-mem: Export the spi_mem_generic_supports_op() helper Date: Tue, 14 Dec 2021 12:41:32 +0100 [thread overview] Message-ID: <20211214114140.54629-6-miquel.raynal@bootlin.com> (raw) In-Reply-To: <20211214114140.54629-1-miquel.raynal@bootlin.com> The combination of checks against the number of supported operations is going to increase exponentially each time we add a new parameter. So far we only had a dtr parameter. Now we are introducing an ECC parameter. We need to make this helper available for drivers with specific needs, instead of creating yet another set of helpers each time we want to check something new. In the future if we see that many different drivers use the same parameter values, we might be tempted to create a specific helper for that. But for now, let's just make the generic one available. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- drivers/spi/spi-mem.c | 7 ++++--- include/linux/spi/spi-mem.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 4c6944d7b174..df2ec2c8ce31 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -160,9 +160,9 @@ static bool spi_mem_check_buswidth(struct spi_mem *mem, return true; } -static bool spi_mem_generic_supports_op(struct spi_mem *mem, - const struct spi_mem_op *op, - struct spi_mem_controller_caps *caps) +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps) { if (!caps->dtr) { if (op->cmd.dtr || op->addr.dtr || @@ -178,6 +178,7 @@ static bool spi_mem_generic_supports_op(struct spi_mem *mem, return spi_mem_check_buswidth(mem, op); } +EXPORT_SYMBOL_GPL(spi_mem_generic_supports_op); bool spi_mem_dtr_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index f365efcfb719..a17dd5035530 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -325,6 +325,10 @@ void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, const struct spi_mem_op *op, struct sg_table *sg); +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps); + bool spi_mem_default_supports_op(struct spi_mem *mem, const struct spi_mem_op *op); @@ -347,6 +351,14 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, { } +static inline +bool spi_mem_generic_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op, + struct spi_mem_controller_caps *caps) +{ + return false; +} + static inline bool spi_mem_default_supports_op(struct spi_mem *mem, const struct spi_mem_op *op) -- 2.27.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2021-12-14 11:41 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-14 11:41 [PATCH v5 00/13] Pipelined ECC engines & Macronix support Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 01/13] mtd: nand: ecc: Provide a helper to retrieve a pilelined engine device Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 02/13] mtd: nand: mxic-ecc: Support SPI pipelined mode Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 03/13] mtd: spinand: Delay a little bit the dirmap creation Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 04/13] spi: spi-mem: Create a helper to gather all the supports_op checks Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 19:53 ` Pratyush Yadav 2021-12-14 19:53 ` Pratyush Yadav 2021-12-15 16:11 ` Miquel Raynal 2021-12-15 16:11 ` Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal [this message] 2021-12-14 11:41 ` [PATCH v5 05/13] spi: spi-mem: Export the spi_mem_generic_supports_op() helper Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 06/13] spi: spi-mem: Add an ecc_en parameter to the spi_mem_op structure Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 16:29 ` Boris Brezillon 2021-12-14 16:29 ` Boris Brezillon 2021-12-14 11:41 ` [PATCH v5 07/13] mtd: spinand: Create direct mapping descriptors for ECC operations Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 08/13] spi: mxic: Fix the transmit path Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 09/13] spi: mxic: Create a helper to configure the controller before an operation Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 10/13] spi: mxic: Create a helper to ease the start of " Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 11/13] spi: mxic: Add support for direct mapping Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 12/13] spi: mxic: Use spi_mem_generic_supports_op() Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal 2021-12-14 16:24 ` Boris Brezillon 2021-12-14 16:24 ` Boris Brezillon 2021-12-15 17:44 ` Miquel Raynal 2021-12-15 17:44 ` Miquel Raynal 2021-12-15 18:45 ` Boris Brezillon 2021-12-15 18:45 ` Boris Brezillon 2021-12-16 8:11 ` Miquel Raynal 2021-12-16 8:11 ` Miquel Raynal 2021-12-15 18:52 ` Boris Brezillon 2021-12-15 18:52 ` Boris Brezillon 2021-12-16 8:14 ` Miquel Raynal 2021-12-16 8:14 ` Miquel Raynal 2021-12-15 19:05 ` Boris Brezillon 2021-12-15 19:05 ` Boris Brezillon 2021-12-15 19:19 ` Mark Brown 2021-12-15 19:19 ` Mark Brown 2021-12-16 8:07 ` Miquel Raynal 2021-12-16 8:07 ` Miquel Raynal 2021-12-16 9:01 ` Miquel Raynal 2021-12-16 9:01 ` Miquel Raynal 2021-12-16 9:57 ` Miquel Raynal 2021-12-16 9:57 ` Miquel Raynal 2021-12-16 14:04 ` Mark Brown 2021-12-16 14:04 ` Mark Brown 2021-12-16 14:27 ` Miquel Raynal 2021-12-16 14:27 ` Miquel Raynal 2021-12-14 11:41 ` [PATCH v5 13/13] spi: mxic: Add support for pipelined ECC operations Miquel Raynal 2021-12-14 11:41 ` Miquel Raynal
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