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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Tudor Ambarus <Tudor.Ambarus@microchip.com>,
	<linux-mtd@lists.infradead.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Michal Simek <monstr@monstr.eu>,
	Naga Sureshkumar Relli <nagasure@xilinx.com>,
	Amit Kumar Mahapatra <akumarma@xilinx.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>
Subject: [PATCH 01/22] mtd: rawnand: Add a helper to clarify the interface configuration
Date: Wed,  5 May 2021 23:37:29 +0200	[thread overview]
Message-ID: <20210505213750.257417-2-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20210505213750.257417-1-miquel.raynal@bootlin.com>

Name it nand_interface_is_sdr() which will make even more sense when
nand_interface_is_nvddr() will be introduced.

Use it when relevant.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 drivers/mtd/nand/raw/atmel/nand-controller.c |  2 +-
 include/linux/mtd/rawnand.h                  | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
index 8aab1017b460..53b3a11b9952 100644
--- a/drivers/mtd/nand/raw/atmel/nand-controller.c
+++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
@@ -1246,7 +1246,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand,
 	nc = to_nand_controller(nand->base.controller);
 
 	/* DDR interface not supported. */
-	if (conf->type != NAND_SDR_IFACE)
+	if (!nand_interface_is_sdr(conf))
 		return -ENOTSUPP;
 
 	/*
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 29df2f43dcb5..39b31f8e03b7 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -496,6 +496,15 @@ struct nand_interface_config {
 	} timings;
 };
 
+/**
+ * nand_interface_is_sdr - get the interface type
+ * @conf:	The data interface
+ */
+static bool nand_interface_is_sdr(const struct nand_interface_config *conf)
+{
+	return conf->type == NAND_SDR_IFACE;
+}
+
 /**
  * nand_get_sdr_timings - get SDR timing from data interface
  * @conf:	The data interface
@@ -503,7 +512,7 @@ struct nand_interface_config {
 static inline const struct nand_sdr_timings *
 nand_get_sdr_timings(const struct nand_interface_config *conf)
 {
-	if (conf->type != NAND_SDR_IFACE)
+	if (!nand_interface_is_sdr(conf))
 		return ERR_PTR(-EINVAL);
 
 	return &conf->timings.sdr;
-- 
2.27.0


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  reply	other threads:[~2021-05-05 21:39 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-05 21:37 [PATCH 00/22] mtd: rawnand: NV-DDR support Miquel Raynal
2021-05-05 21:37 ` Miquel Raynal [this message]
2021-05-26  9:05   ` [PATCH 01/22] mtd: rawnand: Add a helper to clarify the interface configuration Miquel Raynal
2021-05-05 21:37 ` [PATCH 02/22] mtd: rawnand: arasan: Check the proposed data interface is supported Miquel Raynal
2021-05-26  9:05   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 03/22] mtd: rawnand: atmel: " Miquel Raynal
2021-05-26  9:05   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 04/22] mtd: rawnand: onfi: Use the BIT() macro when possible Miquel Raynal
2021-05-26  9:05   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 05/22] mtd: rawnand: Update dead URL Miquel Raynal
2021-05-26  9:05   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 06/22] mtd: rawnand: Use more recent ONFI specification wording Miquel Raynal
2021-05-26  9:05   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 07/22] mtd: rawnand: Clarify the NV-DDR entries in the ONFI structure Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 08/22] mtd: rawnand: Add NV-DDR timings Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 09/22] mtd: rawnand: Retrieve NV-DDR timing modes from the ONFI parameter page Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 10/22] mtd: rawnand: Add an indirection on onfi_fill_interface_config() Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 11/22] mtd: rawnand: Add onfi_fill_nvddr_interface_config() helper Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 12/22] mtd: rawnand: Avoid accessing NV-DDR timings from legacy code Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 13/22] mtd: rawnand: Access SDR and NV-DDR timings through a common macro Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 14/22] mtd: rawnand: Handle the double bytes in NV-DDR mode Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 15/22] mtd: rawnand: Add a helper to find the closest ONFI " Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 16/22] mtd: rawnand: Support enabling NV-DDR through SET_FEATURES Miquel Raynal
2021-05-05 21:37 ` [PATCH 17/22] mtd: rawnand: Allow SDR timings to be nacked Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 18/22] mtd: rawnand: Choose the best timings, NV-DDR included Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 19/22] MAINTAINERS: Add myself as co-maintainer of the Arasan NAND controller driver Miquel Raynal
2021-05-26  9:04   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 20/22] mtd: rawnand: arasan: Fix a macro parameter Miquel Raynal
2021-05-26  9:03   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 21/22] mtd: rawnand: arasan: Workaround a misbehaving prog type with NV-DDR Miquel Raynal
2021-05-26  9:03   ` Miquel Raynal
2021-05-05 21:37 ` [PATCH 22/22] mtd: rawnand: arasan: Support NV-DDR interface Miquel Raynal
2021-05-26  9:03   ` Miquel Raynal

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