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From: Tomer Maimon <tmaimon77@gmail.com>
To: broonie@kernel.org, dwmw2@infradead.org,
	computersforpeace@gmail.com, marek.vasut@gmail.com,
	miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com,
	bbrezillon@kernel.org, yogeshnarayan.gaur@nxp.com,
	tudor.ambarus@microchip.com, gregkh@linuxfoundation.org,
	frieder.schrempf@exceet.de, tglx@linutronix.de
Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	Tomer Maimon <tmaimon77@gmail.com>,
	linux-spi@vger.kernel.org
Subject: [RFC v1 3/3] mtd: m25p80: add get Flash size callback support
Date: Mon, 29 Jul 2019 17:25:04 +0300
Message-ID: <20190729142504.188336-4-tmaimon77@gmail.com> (raw)
In-Reply-To: <20190729142504.188336-1-tmaimon77@gmail.com>

Add get Flash size function support for
passing Flash size through callback use
to the spi layer.

Add get Flash size function support

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
---
 drivers/mtd/devices/m25p80.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index c50888670250..fd14c8c6d8d8 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -151,6 +151,15 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
 	return len;
 }
 
+/* Sending Flash size thourgh callback function to spi layer */
+size_t	m25p80_get_flash_size(void *param)
+{
+	struct spi_mem *spimem = param;
+	struct m25p *flash = spi_mem_get_drvdata(spimem);
+
+	return (u32)(flash->spi_nor.mtd.size >> 10) * 1024;
+}
+
 /*
  * board specific setup should have ensured the SPI clock used here
  * matches what the READ command supports, at least until this driver
@@ -188,6 +197,9 @@ static int m25p_probe(struct spi_mem *spimem)
 	spi_nor_set_flash_node(nor, spi->dev.of_node);
 	nor->priv = flash;
 
+	spimem->callback = m25p80_get_flash_size;
+	spimem->callback_param = spimem;
+
 	spi_mem_set_drvdata(spimem, flash);
 	flash->spimem = spimem;
 
-- 
2.18.0


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Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-29 14:25 [RFC v1 0/3] *spi-mem: adding setup and callback function Tomer Maimon
2019-07-29 14:25 ` [RFC v1 1/3] spi: spi-mem: add spi-mem setup function Tomer Maimon
2019-07-29 14:25 ` [RFC v1 2/3] spi: spi-mem: add callback function to spi-mem device Tomer Maimon
2019-07-29 14:25 ` Tomer Maimon [this message]
2019-07-29 15:28 ` [RFC v1 0/3] *spi-mem: adding setup and callback function Boris Brezillon
     [not found]   ` <CAP6Zq1iPXDX_Gtz6ZWYm3JoHgHjdapotVLGw-Lq4tc2X-6eAug@mail.gmail.com>
2019-07-30  6:54     ` Boris Brezillon
2019-07-30 16:53       ` Sergei Shtylyov
2019-07-30 17:48       ` Vignesh Raghavendra
2019-07-30 18:04         ` Boris Brezillon
     [not found]           ` <CAP6Zq1hfVoS8+VU0rAtKAX7D22qTVHDMosiCRMKV8sQB_m0qOQ@mail.gmail.com>
2019-08-01  6:42             ` Vignesh Raghavendra

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