From: Oliver Graute <oliver.graute@gmail.com>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: gregkh@linuxfoundation.org, devel@driverdev.osuosl.org,
linux-fbdev@vger.kernel.org,
Oliver Graute <oliver.graute@kococonnector.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v1] staging: fbtft: fb_st7789v: Initialize the Display
Date: Mon, 27 Apr 2020 10:36:42 +0200 [thread overview]
Message-ID: <20200427083642.GD18436@portage> (raw)
In-Reply-To: <20200409102013.GP2001@kadam>
On 09/04/20, Dan Carpenter wrote:
> On Thu, Apr 09, 2020 at 11:25:32AM +0200, Oliver Graute wrote:
> > From: Oliver Graute <oliver.graute@kococonnector.com>
> >
> > Set Gamma Values and Register Values for the HSD20_IPS
> >
> > Signed-off-by: Oliver Graute <oliver.graute@kococonnector.com>
> > ---
> > drivers/staging/fbtft/fb_st7789v.c | 12 ++++++------
> > 1 file changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c
> > index 84c5af2dc9a0..b0aa96b703a8 100644
> > --- a/drivers/staging/fbtft/fb_st7789v.c
> > +++ b/drivers/staging/fbtft/fb_st7789v.c
> > @@ -17,8 +17,8 @@
> > #define DRVNAME "fb_st7789v"
> >
> > #define DEFAULT_GAMMA \
> > - "70 2C 2E 15 10 09 48 33 53 0B 19 18 20 25\n" \
> > - "70 2C 2E 15 10 09 48 33 53 0B 19 18 20 25"
> > + "D0 05 0A 09 08 05 2E 44 45 0F 17 16 2B 33\n" \
> > + "D0 05 0A 09 08 05 2E 43 45 0F 16 16 2B 33"
>
> How do you know this won't break someone else's setup?
Should I declare an extra define for my values?
+#define HSD20_IPS_GAMMA \
+ "D0 05 0A 09 08 05 2E 44 45 0F 17 16 2B 33\n" \
+ "D0 05 0A 09 08 05 2E 43 45 0F 16 16 2B 33"
>
> Without knowing anything at all about this driver, it feels like this
> should be:
>
> if (new_hardware)
> write_reg(par, PORCTRL, 0x05, 0x05, 0x00, 0x33, 0x33);
> else
> write_reg(par, PORCTRL, 0x08, 0x08, 0x00, 0x22, 0x22);
ok, I'll update this.
Best regards,
Oliver
next prev parent reply other threads:[~2020-04-27 8:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-09 9:25 [PATCH v1] staging: fbtft: fb_st7789v: Initialize the Display Oliver Graute
2020-04-09 10:22 ` Dan Carpenter
2020-04-27 8:36 ` Oliver Graute [this message]
2020-04-27 9:33 ` Dan Carpenter
2020-04-27 12:36 ` Oliver Graute
2020-04-28 18:59 ` Dan Carpenter
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