09 Aug, 2019

1 commit


17 Mar, 2019

2 commits


13 Sep, 2018

2 commits

  • In order to make use of array info obtained from gpiod_get_array() and
    speed up processing of arrays matching single GPIO chip layout, that
    information must be passed to get/set array functions. Extend the
    functions' API with that additional parameter and update all users.
    Pass NULL if a user builds an array itself from single GPIOs.

    Cc: Jonathan Corbet
    Cc: Miguel Ojeda Sandonis
    Cc: Geert Uytterhoeven
    Cc: Sebastien Bourdelin
    Cc: Lukas Wunner
    Cc: Peter Korsgaard
    Cc: Peter Rosin
    Cc: Andrew Lunn
    Cc: Florian Fainelli
    Cc: "David S. Miller"
    Cc: Rojhalat Ibrahim
    Cc: Dominik Brodowski
    Cc: Russell King
    Cc: Kishon Vijay Abraham I
    Cc: Tony Lindgren
    Cc: Lars-Peter Clausen
    Cc: Michael Hennerich
    Cc: Jonathan Cameron
    Cc: Hartmut Knaack
    Cc: Peter Meerwald-Stadler
    Cc: Greg Kroah-Hartman
    Cc: Jiri Slaby
    Cc: Yegor Yefremov
    Cc: Uwe Kleine-König
    Signed-off-by: Janusz Krzysztofik
    Acked-by: Ulf Hansson
    Signed-off-by: Linus Walleij

    Janusz Krzysztofik
     
  • Most users of get/set array functions iterate consecutive bits of data,
    usually a single integer, while processing array of results obtained
    from, or building an array of values to be passed to those functions.
    Save time wasted on those iterations by changing the functions' API to
    accept bitmaps.

    All current users are updated as well.

    More benefits from the change are expected as soon as planned support
    for accepting/passing those bitmaps directly from/to respective GPIO
    chip callbacks if applicable is implemented.

    Cc: Jonathan Corbet
    Cc: Miguel Ojeda Sandonis
    Cc: Sebastien Bourdelin
    Cc: Lukas Wunner
    Cc: Peter Korsgaard
    Cc: Peter Rosin
    Cc: Andrew Lunn
    Cc: Florian Fainelli
    Cc: "David S. Miller"
    Cc: Rojhalat Ibrahim
    Cc: Dominik Brodowski
    Cc: Russell King
    Cc: Kishon Vijay Abraham I
    Cc: Tony Lindgren
    Cc: Lars-Peter Clausen
    Cc: Michael Hennerich
    Cc: Jonathan Cameron
    Cc: Hartmut Knaack
    Cc: Peter Meerwald-Stadler
    Cc: Greg Kroah-Hartman
    Cc: Jiri Slaby
    Cc: Yegor Yefremov
    Cc: Uwe Kleine-König
    Signed-off-by: Janusz Krzysztofik
    Acked-by: Ulf Hansson
    Reviewed-by: Geert Uytterhoeven
    Tested-by: Geert Uytterhoeven
    Signed-off-by: Linus Walleij

    Janusz Krzysztofik
     

07 Jul, 2018

1 commit

  • At over 4000 #includes, is the 9th most
    #included header file in the Linux kernel. It does not need
    , so drop that header and explicitly add
    to source files that need it.

    4146 #include

    After this patch, there are 225 files that use ,
    for a reduction of around 3900 times that
    does not have to be read & parsed.

    225 #include

    This patch was build-tested on 20 different arch-es.

    It also makes these drivers SubmitChecklist#1 compliant.

    Signed-off-by: Randy Dunlap
    Reported-by: kbuild test robot # drivers/media/platform/vimc/
    Reported-by: kbuild test robot # drivers/pinctrl/pinctrl-u300.c
    Signed-off-by: Greg Kroah-Hartman

    Randy Dunlap
     

13 Apr, 2018

1 commit


08 Apr, 2017

1 commit

  • DT properties specifying physical properties should contain appropriate
    suffices indicating the units of measurement.

    Hence amend the HD44780 DT bindings to add "chars" suffixes to the
    "display-height" and "display-width" properties, and update the driver
    to parse them.

    Fixes: dd9502a9e9156dd8 ("dt-bindings: auxdisplay: Add bindings for Hitachi HD44780")
    Fixes: d47d88361feea2ce ("auxdisplay: Add HD44780 Character LCD support")
    Signed-off-by: Geert Uytterhoeven
    Acked-by: Rob Herring
    Signed-off-by: Greg Kroah-Hartman

    Geert Uytterhoeven
     

17 Mar, 2017

1 commit

  • The Hitachi HD44780 Character LCD Controller is commonly used on
    character LCDs that can display one or more lines of text.

    This driver supports character LCDs connected to GPIOs, using either a
    4-bit or 8-bit data bus, and provides access through the charlcd core
    and /dev/lcd.

    Signed-off-by: Geert Uytterhoeven
    Signed-off-by: Greg Kroah-Hartman

    Geert Uytterhoeven