linux-kernel - Re: [PATCH v1] fbtft: fb_st7789v: added reset on init

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Message-ID: <YRYrPfEHrcvDL4va@kroah.com>
Date:   Fri, 13 Aug 2021 10:20:13 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Oliver Graute <oliver.graute@...oconnector.com>
Cc:     oliver.graute@...il.com, Carlis <zhangxuezhi1@...ong.com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] fbtft: fb_st7789v: added reset on init_display()

On Fri, Aug 13, 2021 at 08:25:10AM +0200, Oliver Graute wrote:
> staging: fbtft: fb_st7789v: reset display before initialization

What is this line here, and why is this not your subject line instead?

> 
> In rare cases the display is flipped or mirrored. This was observed more
> often in a low temperature environment. A clean reset on init_display()
> should help to get registers in a sane state.
> 
> Signed-off-by: Oliver Graute <oliver.graute@...oconnector.com>

What commit does this fix?

thanks,

greg k-h