From: Julian Scheel <julian@jusst.de>
Date: Thu, 24 Mar 2016 21:14:23 +0000 (+0100)
Subject: fbdev: ssd1307fb: Fix charge pump setting
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=80403b232b7af033bb5a2043fc4d60f16e46519f;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

fbdev: ssd1307fb: Fix charge pump setting

Make sure bit 4 is set for the charge pump setting. It is required according
to SSD1306 App Note.

Signed-off-by: Julian Scheel <julian@jusst.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index fa3480815cdb..21dafe53ca49 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -389,7 +389,7 @@ static int ssd1307fb_init(struct ssd1307fb_par *par)
 		return ret;
 
 	ret = ssd1307fb_write_cmd(par->client,
-		(par->device_info->need_chargepump & 0x1 << 2) & 0x14);
+		BIT(4) | (par->device_info->need_chargepump ? BIT(2) : 0));
 	if (ret < 0)
 		return ret;