Commit Graph

5 Commits

Author SHA1 Message Date
Erwan Gouriou 8b47e563e2 dts/Kconfig: Remove HAS_DTS_I2C
HAS_DTS_I2C is now selected by I2C and
always used as I2C && HAS_DTS_I2C.

It could then be purely removed.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2020-09-18 13:34:44 -05:00
Gerard Marull-Paretas ca9dce0d7d drivers: kscan: generalize and improve FT5336 driver
The FT5336 driver has been improved and generalized so that multiple
Focaltech touch controllers can be supported using the same single
driver. According to specifications the following list of controller
variants should be supported: FT5x06, FT5606, FT5x16, FT6x06, Ft6x36,
FT5x06i, FT5336, FT3316, FT5436i, FT5336i and FT5x46.

Tested using ER-TFTM028-4 display module (FT6X06).

Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
2020-08-12 12:35:04 +02:00
Mark Olsson f79699108a drivers: kscan: add support for the interrupt on the ft5336
The ft5336 has an interrupt that can be used instead of polling
this commit adds support for using it but as an option to maintain
compatibility. Tested on the stm32f746g_disco board.

Signed-off-by: Mark Olsson <mark@markolsson.se>
2020-04-02 16:48:15 -05:00
Ulf Magnusson eddd98f811 kconfig: Replace some single-symbol 'if's with 'depends on'
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.

There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.

The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).

Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.

Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.

Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.

The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.

(Everything above is true for choices, menus, and comments as well.)

Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 08:32:42 -05:00
Maureen Helm 6382f06aa0 drivers: kscan: Introduce ft5336 touch panel driver
Introduces a new ft5336 touch panel driver for the keyboard scan (kscan)
interface. The driver currently uses a timer to periodically poll touch
data in the system work queue, but later it can be enhanced to use a
gpio interrupt instead of a timer.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
2020-02-01 08:50:16 -05:00