linux-kernel - [PATCH 15/41] mtd: spi-nor: add SNOR_ID() and SNOR

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Message-Id: <20230807-mtd-flash-info-db-rework-v1-15-3d3d5bef4ba4@kernel.org>
Date:   Mon, 07 Aug 2023 15:21:09 +0200
From:   Michael Walle <mwalle@...nel.org>
To:     Tudor Ambarus <tudor.ambarus@...aro.org>,
        Pratyush Yadav <pratyush@...nel.org>,
        Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        Michael Walle <mwalle@...nel.org>
Subject: [PATCH 15/41] mtd: spi-nor: add SNOR_ID() and SNOR_OTP()

After all the preparation, it is now time to introduce the new macros to
specify flashes in our database: SNOR_ID() and SNOR_OTP(). An flash_info
entry might now look like:
    {
        .id = SNOR_ID(0xef, 0x60, 0x16),
        .otp = SNOR_OTP(256, 3, 0x1000, 0x1000),
        .flags = SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB,
    }

Signed-off-by: Michael Walle <mwalle@...nel.org>
---
 drivers/mtd/spi-nor/core.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index e26a17d11c14..d0e83bfb847c 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -559,6 +559,20 @@ struct flash_info {
 	const struct spi_nor_fixups *fixups;
 };
 
+#define SNOR_ID(...)							\
+	(&(const struct spi_nor_id){					\
+		.bytes = (const u8[]){ __VA_ARGS__ },			\
+		.len = sizeof((u8[]){ __VA_ARGS__ }),			\
+	})
+
+#define SNOR_OTP(_len, _n_regions, _base, _offset)			\
+	(&(const struct spi_nor_otp_organization){			\
+		.len = (_len),						\
+		.base = (_base),					\
+		.offset = (_offset),					\
+		.n_regions = (_n_regions),				\
+	})
+
 #define SPI_NOR_ID_2ITEMS(_id) ((_id) >> 8) & 0xff, (_id) & 0xff
 #define SPI_NOR_ID_3ITEMS(_id) ((_id) >> 16) & 0xff, SPI_NOR_ID_2ITEMS(_id)
 

-- 
2.39.2