fbdev: sh_mobile_lcdc: Add support for format changes at runtime
Implement .fb_set_par to support frame buffer format changes at runtime.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 33b0ff8..f9f420d 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -1154,6 +1154,19 @@
return 0;
}
+static int sh_mobile_set_par(struct fb_info *info)
+{
+ struct sh_mobile_lcdc_chan *ch = info->par;
+ int ret;
+
+ sh_mobile_lcdc_stop(ch->lcdc);
+ ret = sh_mobile_lcdc_start(ch->lcdc);
+ if (ret < 0)
+ dev_err(info->dev, "%s: unable to restart LCDC\n", __func__);
+
+ return ret;
+}
+
/*
* Screen blanking. Behavior is as follows:
* FB_BLANK_UNBLANK: screen unblanked, clocks enabled
@@ -1211,6 +1224,7 @@
.fb_open = sh_mobile_open,
.fb_release = sh_mobile_release,
.fb_check_var = sh_mobile_check_var,
+ .fb_set_par = sh_mobile_set_par,
};
static int sh_mobile_lcdc_update_bl(struct backlight_device *bdev)