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[PATCH 0/3] of/spi/eeprom: Configure at25 from device tree and autoload

To: devicetree-discuss@lists.ozlabs.org, Grant Likely <grant.likely@secretlab.ca>, Rob Herring <rob.herring@calxeda.com>, spi-devel-general@lists.sourceforge.net
Subject: [PATCH 0/3] of/spi/eeprom: Configure at25 from device tree and autoload its driver.
From: David Daney <ddaney.cavm@gmail.com>
Date: Fri, 11 May 2012 15:05:20 -0700
Cc: linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, linux-doc@vger.kernel.org, David Daney <david.daney@cavium.com>
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Sender: linux-mips-bounce@linux-mips.org
From: David Daney <david.daney@cavium.com>

As per the Subject, given a device tree fragment like this:

        spi@1070000001000 {
                compatible = "cavium,octeon-3010-spi";
                reg = <0x10700 0x00001000 0x0 0x100>;
                interrupts = <0 58>;
                #address-cells = <1>;
                #size-cells = <0>;

                eeprom@0 {
                        compatible = "st,m95256", "atmel,at25";
                        reg = <0>;
                        spi-max-frequency = <5000000>;
                        spi-cpha;
                        spi-cpol;

                        pagesize = <64>;
                        size = <32768>;
                        address-width = <16>;
                };
        };

The at25 module is autoloaded and configured from the device tree data.

1/3) Make of_modalias_node() work better for auto loading drivers.

2/3) Use MODALIAS prefixed with "spi:" for SPI drivers so modprobe can
     find the proper driver module.

3/3) Use standard eeprom device tree binding to configure at25,
     convert MODULE_ALIAS(), to equivalent MODULE_DEVICE_TABLE().

David Daney (3):
  of: Add prefix parameter to of_modalias_node().
  spi: Use consistent MODALIAS values.
  eeprom/of: Add device tree bindings to at25.

 drivers/misc/eeprom/at25.c   |   61 +++++++++++++++++++++++++++++++++++++++---
 drivers/of/base.c            |   22 +++++++++++----
 drivers/of/of_i2c.c          |    2 +-
 drivers/of/of_spi.c          |    2 +-
 drivers/spi/spi.c            |   39 +++++++++++++++++++++++---
 include/linux/of.h           |    3 +-
 sound/soc/fsl/mpc8610_hpcd.c |    2 +-
 sound/soc/fsl/p1022_ds.c     |    2 +-
 8 files changed, 113 insertions(+), 20 deletions(-)

-- 
1.7.2.3


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