Linux-mtd Archive on lore.kernel.org
 help / color / Atom feed
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 2/3] spi: spi-mem: add callback function to spi-mem device
Date: Mon, 29 Jul 2019 17:25:03 +0300
Message-ID: <20190729142504.188336-3-tmaimon77@gmail.com> (raw)
In-Reply-To: <20190729142504.188336-1-tmaimon77@gmail.com>

Add callback function support to the spi-mem device
for passing an argument from the spi-mem layer
to the spi layer.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
---
 include/linux/spi/spi-mem.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
index 5f7d20bd2b09..b9841a9030be 100644
--- a/include/linux/spi/spi-mem.h
+++ b/include/linux/spi/spi-mem.h
@@ -13,6 +13,8 @@
 
 #include <linux/spi/spi.h>
 
+typedef size_t (*spi_mem_callback)(void *spi_mem_param);
+
 #define SPI_MEM_OP_CMD(__opcode, __buswidth)			\
 	{							\
 		.buswidth = __buswidth,				\
@@ -172,6 +174,9 @@ struct spi_mem_dirmap_desc {
  * @spi: the underlying SPI device
  * @drvpriv: spi_mem_driver private data
  * @name: name of the SPI memory device
+ * @callback: routine for passing an argument from the
+ *            spi-mem layer to the spi layer.
+ * @callback_param: general parameter to pass to the callback routine
  *
  * Extra information that describe the SPI memory device and may be needed by
  * the controller to properly handle this device should be placed here.
@@ -183,6 +188,8 @@ struct spi_mem {
 	struct spi_device *spi;
 	void *drvpriv;
 	const char *name;
+	spi_mem_callback callback;
+	void *callback_param;
 };
 
 /**
-- 
2.18.0


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  parent reply index

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 ` Tomer Maimon [this message]
2019-07-29 14:25 ` [RFC v1 3/3] mtd: m25p80: add get Flash size callback support Tomer Maimon
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

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190729142504.188336-3-tmaimon77@gmail.com \
    --to=tmaimon77@gmail.com \
    --cc=bbrezillon@kernel.org \
    --cc=broonie@kernel.org \
    --cc=computersforpeace@gmail.com \
    --cc=dwmw2@infradead.org \
    --cc=frieder.schrempf@exceet.de \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=linux-spi@vger.kernel.org \
    --cc=marek.vasut@gmail.com \
    --cc=miquel.raynal@bootlin.com \
    --cc=richard@nod.at \
    --cc=tglx@linutronix.de \
    --cc=tudor.ambarus@microchip.com \
    --cc=vigneshr@ti.com \
    --cc=yogeshnarayan.gaur@nxp.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-mtd Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-mtd/0 linux-mtd/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-mtd linux-mtd/ https://lore.kernel.org/linux-mtd \
		linux-mtd@lists.infradead.org linux-mtd@archiver.kernel.org
	public-inbox-index linux-mtd

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-mtd


AGPL code for this site: git clone https://public-inbox.org/ public-inbox