From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Wed, 10 Jan 2018 19:59:40 +0100
Subject: drm/tinydrm/mipi-dbi: Change reset active time
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Git-commit: 10399b22c1a0e0bbbf56460447e7e602737b0058
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The MIPI DBI spec states that reset active/low time should be more
than 9us. Change from 20ms to 20us.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: David Lechner <david@lechnology.com>
Tested-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180110185940.53841-8-noralf@tronnes.org

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/tinydrm/mipi-dbi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/tinydrm/mipi-dbi.c
+++ b/drivers/gpu/drm/tinydrm/mipi-dbi.c
@@ -414,7 +414,7 @@ void mipi_dbi_hw_reset(struct mipi_dbi *
 		return;
 
 	gpiod_set_value_cansleep(mipi->reset, 0);
-	msleep(20);
+	usleep_range(20, 1000);
 	gpiod_set_value_cansleep(mipi->reset, 1);
 	msleep(120);
 }