13 Sep, 2016

1 commit

• e35b5ab0a   gpio: constify gpio_chip structures ... Browse Code »

  These structures are only used to copy into other structures, so declare
  them as const.

  The semantic patch that makes this change is as follows:
  (http://coccinelle.lip6.fr/)

  //
  @r disable optional_qualifier@
  identifier i;
  position p;
  @@
  static struct gpio_chip i@p = { ... };

  @ok@
  identifier r.i;
  expression e;
  position p;
  @@
  e = i@p;

  @bad@
  position p != {r.p,ok.p};
  identifier r.i;
  struct gpio_chip e;
  @@
  e@i@p

  @depends on !bad disable optional_qualifier@
  identifier r.i;
  @@
  static
  +const
  struct gpio_chip i = { ... };
  //

  Signed-off-by: Julia Lawall
  Acked-by: Joachim Eastwood
  Signed-off-by: Linus Walleij

  Julia Lawall

  2016-09-13 16:35:56 +0800  

31 Mar, 2016

1 commit

• 6e66a6599   gpio: tpic2810: Make sure cached buffer has consistent status with h/w status ... Browse Code »

  i2c_smbus_write_byte_data() can fail. To ensure the
  cached buffer has consistent status with h/w status, don't
  update the cached gpio->buffer if write fails.

  Also refactor the code a bit by adding a tpic2810_set_mask_bits()
  helper and use it to simplify the code.

  Signed-off-by: Axel Lin
  Reviewed-by: Alexandre Courbot
  Signed-off-by: Linus Walleij

  Axel Lin

  2016-03-31 21:14:37 +0800  

16 Feb, 2016

1 commit

• ce02d18fc   gpio: tpic2810: Make tpic2810_direction_output set proper output level ... Browse Code »

  The .direction_output callback should set proper output level.

  Signed-off-by: Axel Lin
  Signed-off-by: Linus Walleij

  Axel Lin

  2016-02-16 22:56:51 +0800  

10 Feb, 2016

1 commit

• b866526d0   gpio: Add driver for TI TPIC2810 ... Browse Code »

  Add driver for TI TPIC2810 8-Bit LED Driver with I2C Interface.

  The TPIC2810 has 8 open-drain outputs that can but used to drive
  LEDs and other low-side switched resistive loads.

  Signed-off-by: Andrew F. Davis
  Signed-off-by: Linus Walleij

  Andrew F. Davis

  2016-02-10 22:22:06 +0800