From: Sam Ravnborg <sam@ravnborg.org>
To: Konstantin Sudakov <k.sudakov@integrasources.com>
Cc: bbrezillon@kernel.org, Maxime Ripard <maxime.ripard@bootlin.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
dri-devel@lists.freedesktop.org,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>, Sean Paul <seanpaul@chromium.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Jagan Teki <jagan@openedev.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 4/4] drm/panel: Add Rondo RB070D30 panel
Date: Sun, 27 Jan 2019 08:33:22 +0100 [thread overview]
Message-ID: <20190127073321.GA9954@ravnborg.org> (raw)
In-Reply-To: <1548566815.202603076@f339.i.mail.ru>
Hi Konstantin
> >> + ctx->gpios.updn = devm_gpiod_get(&dsi->dev, "updn", GPIOD_OUT_LOW);
> >> + if (IS_ERR(ctx->gpios.updn)) {
> >> + dev_err(&dsi->dev, "Couldn't get our updn GPIO\n");
> >> + return PTR_ERR(ctx->gpios.updn);
> >> + }
> > This gpio is never used, it is only read from DT
> The gpio is initialized with low state. The state may be inverted by DT. The same for the "shlr".
> It is a vertical / horizontal inversion.
Ohh, then it makes sense again.
Consider adding a comment so this becomes more obvious
Sam
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WARNING: multiple messages have this Message-ID (diff)
From: Sam Ravnborg <sam@ravnborg.org>
To: Konstantin Sudakov <k.sudakov@integrasources.com>
Cc: bbrezillon@kernel.org, Maxime Ripard <maxime.ripard@bootlin.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
dri-devel@lists.freedesktop.org,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>, Sean Paul <seanpaul@chromium.org>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Jagan Teki <jagan@openedev.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 4/4] drm/panel: Add Rondo RB070D30 panel
Date: Sun, 27 Jan 2019 08:33:22 +0100 [thread overview]
Message-ID: <20190127073321.GA9954@ravnborg.org> (raw)
In-Reply-To: <1548566815.202603076@f339.i.mail.ru>
Hi Konstantin
> >> + ctx->gpios.updn = devm_gpiod_get(&dsi->dev, "updn", GPIOD_OUT_LOW);
> >> + if (IS_ERR(ctx->gpios.updn)) {
> >> + dev_err(&dsi->dev, "Couldn't get our updn GPIO\n");
> >> + return PTR_ERR(ctx->gpios.updn);
> >> + }
> > This gpio is never used, it is only read from DT
> The gpio is initialized with low state. The state may be inverted by DT. The same for the "shlr".
> It is a vertical / horizontal inversion.
Ohh, then it makes sense again.
Consider adding a comment so this becomes more obvious
Sam
next prev parent reply other threads:[~2019-01-27 7:34 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-23 15:54 [PATCH 0/4] drm/sun4i: dsi: Add burst mode support Maxime Ripard
2019-01-23 15:54 ` Maxime Ripard
2019-01-23 15:54 ` [PATCH 1/4] drm/sun4i: dsi: Restrict DSI tcon clock divider Maxime Ripard
2019-01-23 15:54 ` Maxime Ripard
2019-01-28 12:08 ` Jagan Teki
2019-01-28 12:08 ` Jagan Teki
2019-01-29 15:39 ` Paul Kocialkowski
2019-01-29 15:39 ` Paul Kocialkowski
2019-01-23 15:54 ` [PATCH 2/4] drm/sun4i: dsi: Change the start delay calculation Maxime Ripard
2019-01-23 15:54 ` Maxime Ripard
2019-01-29 15:40 ` Paul Kocialkowski
2019-01-29 15:40 ` Paul Kocialkowski
2019-01-30 3:23 ` Chen-Yu Tsai
2019-01-30 3:23 ` Chen-Yu Tsai
2019-02-05 16:48 ` Chen-Yu Tsai
2019-02-05 16:48 ` Chen-Yu Tsai
2019-02-06 14:12 ` Maxime Ripard
2019-02-06 14:12 ` Maxime Ripard
2019-02-06 14:32 ` Chen-Yu Tsai
2019-02-06 14:32 ` Chen-Yu Tsai
2019-01-23 15:54 ` [PATCH 3/4] drm/sun4i: dsi: Add burst support Maxime Ripard
2019-01-23 15:54 ` Maxime Ripard
2019-02-05 18:28 ` Chen-Yu Tsai
2019-02-05 18:28 ` Chen-Yu Tsai
2019-02-07 14:27 ` Maxime Ripard
2019-02-07 14:27 ` Maxime Ripard
2019-01-23 15:54 ` [PATCH 4/4] drm/panel: Add Rondo RB070D30 panel Maxime Ripard
2019-01-23 15:54 ` Maxime Ripard
2019-01-26 15:39 ` Sam Ravnborg
2019-01-26 15:39 ` Sam Ravnborg
2019-01-27 5:26 ` Re[2]: " Konstantin Sudakov
2019-01-27 7:33 ` Sam Ravnborg [this message]
2019-01-27 7:33 ` Sam Ravnborg
2019-01-29 15:37 ` Maxime Ripard
2019-01-29 15:37 ` Maxime Ripard
2019-01-29 15:48 ` Sam Ravnborg
2019-01-29 15:48 ` Sam Ravnborg
2019-02-05 15:31 ` Maxime Ripard
2019-02-05 15:31 ` Maxime Ripard
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