target/linux/brcm2708/patches-4.1/0164-staging-fbtft-Add-reset-to-fbtft_init_display_dt.patch

   1 From 26a9afc8fb40ec61cc7b0189e96c5471e72ec83c Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
   3 Date: Sat, 11 Jul 2015 18:48:10 +0200
   4 Subject: [PATCH 164/222] staging: fbtft: Add reset to fbtft_init_display_dt()
   5 MIME-Version: 1.0
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   8
   9 When an init sequence is present in the Device Tree,
  10 fbtft_init_display_dt() is used to initialize the display.
  11 Add missing reset function call and activation of
  12 chip select for parallel bus.
  13
  14 Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
  15 ---
  16  drivers/staging/fbtft/fbtft-core.c | 5 +++++
  17  1 file changed, 5 insertions(+)
  18
  19 --- a/drivers/staging/fbtft/fbtft-core.c
  20 +++ b/drivers/staging/fbtft/fbtft-core.c
  21 @@ -1074,6 +1074,11 @@ static int fbtft_init_display_dt(struct
  22         p = of_prop_next_u32(prop, NULL, &val);
  23         if (!p)
  24                 return -EINVAL;
  25 +
  26 +       par->fbtftops.reset(par);
  27 +       if (par->gpio.cs != -1)
  28 +               gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
  29 +
  30         while (p) {
  31                 if (val & FBTFT_OF_INIT_CMD) {
  32                         val &= 0xFFFF;