target/linux/ramips/patches-5.10/112-gpio-mt7621-add-BGPIOF_NO_SET_ON_INPUT-flag.patch

   1 From ad65f02fd73e9a700f1693a4513ae923ca07beb0 Mon Sep 17 00:00:00 2001
   2 From: Chuanhong Guo <gch981213@gmail.com>
   3 Date: Sun, 15 Mar 2020 20:13:38 +0800
   4 Subject: [PATCH] gpio: mt7621: add BGPIOF_NO_SET_ON_INPUT flag
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 DSET/DCLR registers only works on output pins. Add corresponding
  10 BGPIOF_NO_SET_ON_INPUT flag to bgpio_init call to fix direction_out
  11 behavior.
  12
  13 Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
  14 Tested-by: René van Dorst <opensource@vdorst.com>
  15 Reviewed-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
  16 Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
  17 ---
  18  drivers/gpio/gpio-mt7621.c | 4 ++--
  19  1 file changed, 2 insertions(+), 2 deletions(-)
  20
  21 --- a/drivers/gpio/gpio-mt7621.c
  22 +++ b/drivers/gpio/gpio-mt7621.c
  23 @@ -227,8 +227,8 @@ mediatek_gpio_bank_probe(struct device *
  24         ctrl = mtk->base + GPIO_REG_DCLR + (rg->bank * GPIO_BANK_STRIDE);
  25         diro = mtk->base + GPIO_REG_CTRL + (rg->bank * GPIO_BANK_STRIDE);
  26
  27 -       ret = bgpio_init(&rg->chip, dev, 4,
  28 -                        dat, set, ctrl, diro, NULL, 0);
  29 +       ret = bgpio_init(&rg->chip, dev, 4, dat, set, ctrl, diro, NULL,
  30 +                        BGPIOF_NO_SET_ON_INPUT);
  31         if (ret) {
  32                 dev_err(dev, "bgpio_init() failed\n");
  33                 return ret;