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barebox/drivers/ata
Antony Pavlov 377d261708 of: use 'const void *' for struct of_device_id.data
Since 2011 barebox' of_device_id struct uses unsigned long type for data field:

    struct of_device_id {
            char *compatible;
            unsigned long data;
    };

Almost always struct of_device_id.data field are used as pointer
and need 'unsigned long' casting.

E.g. see 'git grep -A 4 of_device_id drivers/' output:

    drivers/ata/sata-imx.c:static __maybe_unused struct of_device_id imx_sata_dt_ids[] = {
    drivers/ata/sata-imx.c- {
    drivers/ata/sata-imx.c-         .compatible = "fsl,imx6q-ahci",
    drivers/ata/sata-imx.c-         .data = (unsigned long)&data_imx6,
    drivers/ata/sata-imx.c- }, {

Here is of_device_id struct in linux kernel v4.0:

    struct of_device_id {
            char name[32];
            char type[32];
            char compatible[128];
            const void *data;
    };

Changing of_device_id.data type to 'const void *data' will increase
barebox' linux kernel compatibility and decrease number of 'unsigned
long' casts.

Part of the patch was done using the 'coccinelle' tool with the
following semantic patch:

    @rule1@
    identifier dev;
    identifier type;
    identifier func;
    @@
    func(...) {
    <...
    - dev_get_drvdata(dev, (unsigned long *)&type)
    + dev_get_drvdata(dev, (const void **)&type)
    ...>
    }
    @rule2@
    identifier dev;
    identifier type;
    identifier func;
    identifier data;
    @@
    func(...) {
    <...
    - dev_get_drvdata(dev, (unsigned long *)&type->data)
    + dev_get_drvdata(dev, (const void **)&type->data)
    ...>
    }

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2015-04-30 08:12:57 +02:00
..
Kconfig sandbox: allow "make ARCH=sandbox allyesconfig" 2014-07-22 21:29:57 +02:00
Makefile ata: Add i.MX AHCI driver 2012-12-07 12:19:45 +01:00
ahci.c AHCI: convert to streaming DMA ops 2015-03-06 07:52:02 +01:00
ahci.h treewide: remove address of the Free Software Foundation 2014-06-11 08:35:25 +02:00
disk_ata_drive.c ata: Make 'already initialized' a debug message 2013-06-21 07:40:47 +02:00
disk_bios_drive.c switch all platform_bus device/driver registering to platform_driver/device_register 2012-10-04 15:19:12 +02:00
ide-sff.c x86: Add support for IDE on the legacy I/O ports 2014-04-08 08:17:55 +02:00
intf_platform_ide.c resource: Let dev_request_mem_region return an error pointer 2014-09-16 08:32:10 +02:00
pata-imx.c resource: Let dev_request_mem_region return an error pointer 2014-09-16 08:32:10 +02:00
sata-imx.c of: use 'const void *' for struct of_device_id.data 2015-04-30 08:12:57 +02:00