From: Andrey Lebedev <andrey.lebedev@gmail.com>
To: mripard@kernel.org, wens@csie.org, airlied@linux.ie,
daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Cc: Andrey Lebedev <andrey@lebedev.lt>, linux-sunxi@googlegroups.com
Subject: [PATCH v3 1/3] drm/sun4i: tcon: Introduce LVDS setup routine setting
Date: Thu, 13 Feb 2020 22:18:53 +0200 [thread overview]
Message-ID: <20200213201854.810-1-andrey.lebedev@gmail.com> (raw)
In-Reply-To: <20200210195633.GA21832@kedthinkpad>
From: Andrey Lebedev <andrey@lebedev.lt>
Different sunxi flavors require slightly different sequence for enabling
LVDS output. This allows to differentiate between them.
Signed-off-by: Andrey Lebedev <andrey@lebedev.lt>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 68 ++++++++++++++++--------------
drivers/gpu/drm/sun4i/sun4i_tcon.h | 3 ++
2 files changed, 39 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index c81cdce6ed55..cc6b05ca2c69 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -114,46 +114,48 @@ static void sun4i_tcon_channel_set_status(struct sun4i_tcon *tcon, int channel,
}
}
+static void sun6i_tcon_setup_lvds_phy(struct sun4i_tcon *tcon,
+ const struct drm_encoder *encoder)
+{
+ u8 val;
+
+ regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
+ SUN6I_TCON0_LVDS_ANA0_C(2) |
+ SUN6I_TCON0_LVDS_ANA0_V(3) |
+ SUN6I_TCON0_LVDS_ANA0_PD(2) |
+ SUN6I_TCON0_LVDS_ANA0_EN_LDO);
+ udelay(2);
+
+ regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
+ SUN6I_TCON0_LVDS_ANA0_EN_MB,
+ SUN6I_TCON0_LVDS_ANA0_EN_MB);
+ udelay(2);
+
+ regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
+ SUN6I_TCON0_LVDS_ANA0_EN_DRVC,
+ SUN6I_TCON0_LVDS_ANA0_EN_DRVC);
+
+ if (sun4i_tcon_get_pixel_depth(encoder) == 18)
+ val = 7;
+ else
+ val = 0xf;
+
+ regmap_write_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
+ SUN6I_TCON0_LVDS_ANA0_EN_DRVD(0xf),
+ SUN6I_TCON0_LVDS_ANA0_EN_DRVD(val));
+
+}
+
static void sun4i_tcon_lvds_set_status(struct sun4i_tcon *tcon,
const struct drm_encoder *encoder,
bool enabled)
{
if (enabled) {
- u8 val;
-
regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_IF_REG,
SUN4I_TCON0_LVDS_IF_EN,
SUN4I_TCON0_LVDS_IF_EN);
-
- /*
- * As their name suggest, these values only apply to the A31
- * and later SoCs. We'll have to rework this when merging
- * support for the older SoCs.
- */
- regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
- SUN6I_TCON0_LVDS_ANA0_C(2) |
- SUN6I_TCON0_LVDS_ANA0_V(3) |
- SUN6I_TCON0_LVDS_ANA0_PD(2) |
- SUN6I_TCON0_LVDS_ANA0_EN_LDO);
- udelay(2);
-
- regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
- SUN6I_TCON0_LVDS_ANA0_EN_MB,
- SUN6I_TCON0_LVDS_ANA0_EN_MB);
- udelay(2);
-
- regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
- SUN6I_TCON0_LVDS_ANA0_EN_DRVC,
- SUN6I_TCON0_LVDS_ANA0_EN_DRVC);
-
- if (sun4i_tcon_get_pixel_depth(encoder) == 18)
- val = 7;
- else
- val = 0xf;
-
- regmap_write_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
- SUN6I_TCON0_LVDS_ANA0_EN_DRVD(0xf),
- SUN6I_TCON0_LVDS_ANA0_EN_DRVD(val));
+ if (tcon->quirks->setup_lvds_phy)
+ tcon->quirks->setup_lvds_phy(tcon, encoder);
} else {
regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_IF_REG,
SUN4I_TCON0_LVDS_IF_EN, 0);
@@ -1465,12 +1467,14 @@ static const struct sun4i_tcon_quirks sun8i_a33_quirks = {
.has_channel_0 = true,
.has_lvds_alt = true,
.dclk_min_div = 1,
+ .setup_lvds_phy = sun6i_tcon_setup_lvds_phy,
};
static const struct sun4i_tcon_quirks sun8i_a83t_lcd_quirks = {
.supports_lvds = true,
.has_channel_0 = true,
.dclk_min_div = 1,
+ .setup_lvds_phy = sun6i_tcon_setup_lvds_phy,
};
static const struct sun4i_tcon_quirks sun8i_a83t_tv_quirks = {
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h
index a62ec826ae71..2974e59ef9f2 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h
@@ -228,6 +228,9 @@ struct sun4i_tcon_quirks {
/* callback to handle tcon muxing options */
int (*set_mux)(struct sun4i_tcon *, const struct drm_encoder *);
+ /* handler for LVDS setup routine */
+ void (*setup_lvds_phy)(struct sun4i_tcon *tcon,
+ const struct drm_encoder *encoder);
};
struct sun4i_tcon {
--
2.20.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-02-13 20:19 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 19:56 [PATCH 1/1] Support LVDS output on Allwinner A20 Andrey Lebedev
2020-02-11 7:20 ` Maxime Ripard
2020-02-11 20:48 ` Andrey Lebedev
2020-02-12 12:53 ` Maxime Ripard
2020-02-12 22:46 ` Andrey Lebedev
2020-02-13 9:24 ` Maxime Ripard
2020-02-13 18:11 ` Andrey Lebedev
2020-02-14 7:58 ` Maxime Ripard
2020-02-12 22:23 ` [PATCH v2 1/2] ARM: sun7i: " andrey.lebedev
2020-02-13 9:32 ` Maxime Ripard
2020-02-12 22:23 ` [PATCH v2 2/2] ARM: sun7i: dts: Add LVDS panel support on A20 andrey.lebedev
2020-02-13 9:43 ` Maxime Ripard
2020-02-13 20:08 ` Andrey Lebedev
2020-02-14 7:52 ` Maxime Ripard
2020-02-14 8:43 ` Andrey Lebedev
2020-02-14 8:53 ` Maxime Ripard
2020-02-14 21:32 ` Andrey Lebedev
2020-02-17 17:51 ` Maxime Ripard
2020-02-18 17:50 ` Andrey Lebedev
2020-02-19 12:06 ` Maxime Ripard
2020-02-13 20:18 ` Andrey Lebedev [this message]
2020-02-13 20:18 ` [PATCH v3 2/3] drm/sun4i: tcon: Support LVDS output on Allwinner A20 Andrey Lebedev
2020-02-13 20:18 ` [PATCH v3 3/3] ARM: dts: sun7i: Add LVDS panel support on A20 Andrey Lebedev
2020-02-14 8:55 ` Maxime Ripard
2020-02-19 18:08 ` PATCH v4 Andrey Lebedev
2020-02-19 18:08 ` [PATCH 1/5] drm/sun4i: tcon: Introduce LVDS setup routine setting Andrey Lebedev
2020-02-20 17:21 ` Maxime Ripard
2020-02-20 18:19 ` Andrey Lebedev
2020-02-19 18:08 ` [PATCH 2/5] drm/sun4i: tcon: Separate quirks for tcon0 and tcon1 on A20 Andrey Lebedev
2020-02-20 17:22 ` Maxime Ripard
2020-02-19 18:08 ` [PATCH 3/5] ARM: dts: sun7i: Add LVDS panel support " Andrey Lebedev
2020-02-20 17:23 ` Maxime Ripard
2020-02-19 18:08 ` [PATCH 4/5] dt-bindings: display: sun4i: New compatibles for A20 tcons Andrey Lebedev
2020-02-20 17:24 ` Maxime Ripard
2020-02-19 18:08 ` [PATCH 5/5] drm/sun4i: tcon: Support LVDS output on Allwinner A20 Andrey Lebedev
2020-02-20 17:25 ` Maxime Ripard
2020-04-01 10:59 ` Andrey Lebedev
2020-04-01 12:14 ` Maxime Ripard
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200213201854.810-1-andrey.lebedev@gmail.com \
--to=andrey.lebedev@gmail.com \
--cc=airlied@linux.ie \
--cc=andrey@lebedev.lt \
--cc=daniel@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=mripard@kernel.org \
--cc=wens@csie.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).