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>

ARM: at91: remove mach/io.h ...

Remove at91_sys_read() and at91_sys_write() since these are no longer
used. This makes mach/io.h empty so remove that aswell.

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

atmel_lcdfb: introduce driver data ...

From b1cb4bb Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Sat, 6 Jan 2018 14:33:53 +0100
Subject: [PATCH] atmel_lcdfb: introduce driver data

Introduce driver data like known from the kernel.
This allows us to get rid of the hack where the
intensity bit support was included in the lcd wiring mode.
(No longer any support for IBGR, IRBG)

It has the nice side-effect that all places where we test
for hacks can now use flags and not a set of cpu's.
So we keep all the configuration in one place.

The configuration is included for non-DT users.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_lcdfb: add DT support ...

Some boards use "have_intensity_bit". To support this the
syntax for lcd_wiring_mode was extended to include this info.
This is an extension compared to the documented bindings,
and an extension the kernel does not support (yet).

The binding documents that there can be more than one gpio to
power on/off the display but current implmentation supports only
one gpio. There are no users that requires more than one gpio
so this is good enough.

The clk name used for hclk differs from device trees and
platform data. We could rename the clocl used in platform data
but the name "hclk" is not unique.

Configure clockname based on configuration method.
Devicetree => hclk
Platform data => hck1

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_lcdfb: move dmacon, lcdcon2 to local data ...

Copy dmacon + lcdcon2 to atmel_lcdfb_info to minimize
dependency on the atmel_lcdfb_platform_data.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_lcdfb: fix so the correct guard_time is used ...

guard_time is set in platform data but was never copied
to atmel_lcdfb_info thus a guard_time of 0 have always been used.

This issue was found during code inspection and no know
bugs is fixed by this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

ARM: move DMA alloc functions to dma.h ...

This better separates the DMA from the MMU functionality.

Also move all drivers that only depends on asm/mmu.h for the alloc
functions over to the common header.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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

The FSF address has changed; The FSF site says that
address is

  Free Software Foundation
  51 Franklin Street, Fifth Floor
  Boston, MA 02110-1301
  USA

(see http://www.fsf.org/about/contact/)

Instead of updating it each time the address changes,
just drop it completely treewide.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
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>

Merge branch 'for-next/at91' ...

Conflicts:
	arch/arm/boards/at91rm9200ek/init.c
	arch/arm/boards/pm9263/init.c
	arch/arm/configs/at91sam9n12ek_defconfig
	arch/arm/mach-at91/Kconfig

atmel_lcdfb: fix warning: implicit declaration of function 'clk_get_rate' ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

atmel_lcdfb: factorise common code between lcdc and new hlcdc IP ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: add atmel lcdc frambuffer support ...

This IP is present on the at91sam9 until the sam9g45, on the sam9x5 we use a
new IP.

This driver is based on the linux one.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>