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path: root/target/linux/brcm2708/patches-4.1/0164-staging-fbtft-Add-reset-to-fbtft_init_display_dt.patch
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From 82bd9c0d64c76c40bff8c4325df8302c8ffc6945 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Sat, 11 Jul 2015 18:48:10 +0200
Subject: [PATCH 164/203] staging: fbtft: Add reset to fbtft_init_display_dt()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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When an init sequence is present in the Device Tree,
fbtft_init_display_dt() is used to initialize the display.
Add missing reset function call and activation of
chip select for parallel bus.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
---
 drivers/staging/fbtft/fbtft-core.c | 5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -1074,6 +1074,11 @@ static int fbtft_init_display_dt(struct
 	p = of_prop_next_u32(prop, NULL, &val);
 	if (!p)
 		return -EINVAL;
+
+	par->fbtftops.reset(par);
+	if (par->gpio.cs != -1)
+		gpio_set_value(par->gpio.cs, 0);  /* Activate chip */
+
 	while (p) {
 		if (val & FBTFT_OF_INIT_CMD) {
 			val &= 0xFFFF;