Commit graph

9 commits

Author SHA1 Message Date
Simon Glass
bcee8d6764 dm: gpio: Allow control of GPIO uclass in SPL
At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass
is included in SPL/TPL without any control for boards. Some boards may
want to disable this to reduce code size where GPIOs are not needed in
SPL or TPL.

Add a new Kconfig option to permit this. Default it to 'y' so that
existing boards work correctly.

Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to
preserve the current behaviour. Also update the 74x164 GPIO driver since
it cannot build with SPL.

This allows us to remove the hacks in config_uncmd_spl.h and
Makefile.uncmd_spl (eventually those files should be removed).

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15 08:52:29 +08:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
0a9e34056f gpio: omap: Drop 'method' parameter
The "method" parameter was part of the original port of the driver from
the kernel.  At some point this may have been added to allow for future
differentiation (as omap1 and omap2 have different GPIO IP blocks, so
this wasn't an unreasonable thing to do).  At this point however it's
just extra overhead, so drop.

Signed-off-by: Tom Rini <trini@konsulko.com>
2015-08-12 20:48:06 -04:00
Simon Glass
5915a2ad0d dm: omap: gpio: Support driver model
Add driver model support to this driver, while retaining support for the
legacy system. Driver model GPIO support is enabled with CONFIG_DM_GPIO
as usual.

Since gpio_is_valid() no longer exists, we can use the -EINVAL error
returned from gpio_request().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
2014-10-23 19:29:07 -06:00
Wolfgang Denk
bcd4d4eb2b SPDX-License-Identifier: fixing some problematic GPL-2.0 files
Unlike the other patches in this series so far, this commit fixes a
ambiguity in the license terms for some OMAP files:  the code was
originally derived from the Linux kernel sources, where it was clearly
marked as GPL-2.0 (i. e. without the "or later" part), but the U-Boot
version had a GPL-2.0+ file header added, apparently without
permission / relicensing from the original authors of the code.

Insert a GPL-2.0 SPDX-License-Identifier to fix this.

Signed-off-by: Wolfgang Denk <wd@denx.de>
cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Acked-by: Tom Rini <trini@ti.com>
2013-08-19 15:34:13 -04:00
Nikita Kiryanov
dcee1ab320 gpio: add gpio_is_valid() to omap_gpio API
Add gpio_is_valid() to omap_gpio API

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
2012-12-10 12:45:35 -07:00
Sanjeev Premi
81bdc155c7 omap: gpio: Use generic API
Convert all OMAP specific functions to use the common API
definitions in include/asm/gpio.h. In the process, made
few additional changes:
 - Use -EINVAL consistently. -1 was used in many places.
 - Removed one-liner static functions that were used only
   once. Replaced the content as necessary.
 - Combines implementation of functions omap_get_gpio_dataout()
   and omap_get_gpio_datain(). To do so, new static function
   _get_gpio_direction() was added.

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-13 08:25:15 +02:00
Joel A Fernandes
569919d8e2 OMAP: Add function to get state of a GPIO output
Read directly from OMAP_GPIO_DATAOUT to get the output state of the GPIO pin

Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com>
Signed-off-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-09-12 17:40:48 +02:00
Aneesh V
25223a68e5 omap: reuse omap3 gpio support in omap4
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-08-03 12:49:20 +02:00
Renamed from arch/arm/include/asm/arch-omap3/gpio.h (Browse further)