From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752944AbdEQFjk (ORCPT ); Wed, 17 May 2017 01:39:40 -0400 Received: from gate2.alliedtelesis.co.nz ([202.36.163.20]:35093 "EHLO gate2.alliedtelesis.co.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751747AbdEQFja (ORCPT ); Wed, 17 May 2017 01:39:30 -0400 From: Chris Packham To: dwmw2@infradead.org, computersforpeace@gmail.com, andrew@lunn.ch, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Chris Packham , Boris Brezillon , Marek Vasut , Richard Weinberger , Cyrille Pitchen , Rob Herring , Mark Rutland , devicetree@vger.kernel.org Subject: [PATCH 1/4] mtd: mchp23k256: Add OF device ID table Date: Wed, 17 May 2017 17:39:05 +1200 Message-Id: <20170517053908.26138-2-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.11.0.24.ge6920cf In-Reply-To: <20170517053908.26138-1-chris.packham@alliedtelesis.co.nz> References: <20170517053908.26138-1-chris.packham@alliedtelesis.co.nz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This allows registering of this device via a Device Tree. Signed-off-by: Chris Packham --- .../devicetree/bindings/mtd/microchip,mchp23k256.txt | 18 ++++++++++++++++++ drivers/mtd/devices/mchp23k256.c | 8 ++++++++ 2 files changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt new file mode 100644 index 000000000000..25e5ad38b0f0 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/microchip,mchp23k256.txt @@ -0,0 +1,18 @@ +* MTD SPI driver for Microchip 23K256 (and similar) serial SRAM + +Required properties: +- #address-cells, #size-cells : Must be present if the device has sub-nodes + representing partitions. +- compatible : Must be "microchip,mchp23k256" +- reg : Chip-Select number +- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at + +Example: + + spi-sram@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "microchip,mchp23k256"; + reg = <0>; + spi-max-frequency = <20000000>; + }; diff --git a/drivers/mtd/devices/mchp23k256.c b/drivers/mtd/devices/mchp23k256.c index e237db9f1bdb..9d8306a15833 100644 --- a/drivers/mtd/devices/mchp23k256.c +++ b/drivers/mtd/devices/mchp23k256.c @@ -19,6 +19,7 @@ #include #include #include +#include struct mchp23k256_flash { struct spi_device *spi; @@ -166,9 +167,16 @@ static int mchp23k256_remove(struct spi_device *spi) return mtd_device_unregister(&flash->mtd); } +static const struct of_device_id mchp23k256_of_table[] = { + { .compatible = "microchip,mchp23k256" }, + {} +}; +MODULE_DEVICE_TABLE(of, mchp23k256_of_table); + static struct spi_driver mchp23k256_driver = { .driver = { .name = "mchp23k256", + .of_match_table = of_match_ptr(mchp23k256_of_table), }, .probe = mchp23k256_probe, .remove = mchp23k256_remove, -- 2.11.0.24.ge6920cf