treewide: remove references to CREDITS ...

The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/mmc'

mci: omap: use IS_ENABLED() rather than #ifdef ...

While touching it propagate the errors from read/write functions instead
of silently ignoring them.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: Improve error handling ...

Return proper error code from read/write functions rather than '1'. Also
add messages printing the status register to give a glue what went
wrong.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap_hsmmc: Drop explicit devname setup code ...

Drop explicit devname setup code. Same setup will be done by
mci_of_parse().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: Add devicetree options parsing by MCI core. ...

This patch adds a callback to parsing devicetree options for MMC:
bus-width, etc..

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: replace dev_request_mem_region with dev_request_mem_resource ...

dev_request_mem_region doesn't work properly one some SoCs on which
PTR_ERR() values clash with valid return values from dev_request_mem_region.
Replace them with dev_request_mem_resource where possible.

This patch has been generated with the following semantic patch:

// <smpl>
@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
...
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
-	ret = PTR_ERR(io);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
+	ret = PTR_ERR(iores);
...
}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
identifier func;
@@
func(...) {
<+...
struct resource *iores;
-struct resource *iores;
...+>
}
// </smpl>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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>

resource: Let dev_request_mem_region return an error pointer ...

For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/omap-drivers'

mmc: omap: Add devicetree support ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mmc: omap: name mmc device after devicetree alias ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: Fix default value of mci.f_max ...

With commit c2ef47887 mci.f_max default value is
only set when pdata is available.

Fix this with always setting the mci.f_max default
value and overrite it when pdata available.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: Allow to set mmc devname via platformdata ...

To be able to get persistent names for the sd/mmc devices.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: implement device detect callback ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: omap: advertise 8 bit support ...

The driver is already capable of 8 bit buswidth support, so advertise
it to actually make use of it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: rename capabilities flags ...

Use MMC_CAP_ names instead of MMC_MODE_. This makes it more
clear that these are capabilities of host/card and do not refer
to the current mode. These are in line with the Linux Kernel
except for MMC_CAP_MMC_HIGHSPEED_52MHZ which could be fixed
later.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mfd: Using MFD_xx prefix for symbols ...

This patch provides rename MFD-related symbols for using MFD-prefix.
Additionally, sorting mfd/Kconfig and mfd/Makefile records.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Use new device_platform_driver() macro for drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM omap / mci: Fix register offsets ...

Only the OMAP4 has a register offset of 0x100 in the register space. Fix
this by using the device id mechanism. This became broken when the device
register convenience functions were introduced.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci omap_hsmmc: Fix whitespaces ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM omap hsmmc: Fix register offset ...

The hsmmc module has a 0x100 offset in its register space. The real
register space size for the module is 4K, so when we register the
device with the size 4k, we have to account for the offset in the
driver, not in the resource allocation.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

switch all platform_bus device/driver registering to platform_driver/device_register ...

now register_driver and register_device are for bus only usage.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Merge branch 'for-next/remove-fsf-address' ...

Conflicts:
	drivers/net/miidev.c
	include/miidev.h

mmc_omap: improve error message ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci: remove unused device argument from set_ios ...

This argmuent is unused in all drivers, so remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci core: replace discrete ios values with struct ios ...

As we'll need more arguments to set_ios over time put them
in a struct mci_ios like the kernel does.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

omap_hsmmc: setup mmc voltage on twl6030 ...

Support the setup of the mmc voltage, when booting OMAP4 with twl6030
from nand.

Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mci omap: do not fail on nonexistent pdata ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>