From: Andrey Lebedev <andrey@lebedev.lt>
To: Maxime Ripard <maxime@cerno.tech>,
Andrey Lebedev <andrey.lebedev@gmail.com>
Cc: 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, linux-sunxi@googlegroups.com
Subject: Re: [PATCH 5/5] drm/sun4i: tcon: Support LVDS output on Allwinner A20
Date: Wed, 1 Apr 2020 13:59:27 +0300 [thread overview]
Message-ID: <fa780b70-f1cc-ee4c-e779-089c7e9159ab@lebedev.lt> (raw)
In-Reply-To: <20200220172512.dmjtqgyay73x3ubx@gilmour.lan>
Hello Maxime,
Since Linus' merge window is now open, do I have to do anything to get
this merged into the mainline kernel?
On 2/20/20 7:25 PM, Maxime Ripard wrote:
> On Wed, Feb 19, 2020 at 08:08:58PM +0200, Andrey Lebedev wrote:
>> From: Andrey Lebedev <andrey@lebedev.lt>
>>
>> A20 SoC (found in Cubieboard 2 among others) requires different LVDS set
>> up procedure than A33. Timing controller (tcon) driver only implements
>> sun6i-style procedure, that doesn't work on A20 (sun7i).
>>
>> Signed-off-by: Andrey Lebedev <andrey@lebedev.lt>
>> ---
>> drivers/gpu/drm/sun4i/sun4i_tcon.c | 37 +++++++++++++++++++++++++++++-
>> drivers/gpu/drm/sun4i/sun4i_tcon.h | 11 +++++++++
>> 2 files changed, 47 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
>> index b7234eef3c7b..09ee6e8c6914 100644
>> --- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
>> +++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
>> @@ -114,6 +114,30 @@ static void sun4i_tcon_channel_set_status(struct sun4i_tcon *tcon, int channel,
>> }
>> }
>>
>> +static void sun4i_tcon_setup_lvds_phy(struct sun4i_tcon *tcon,
>> + const struct drm_encoder *encoder)
>> +{
>> + regmap_write(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
>> + SUN4I_TCON0_LVDS_ANA0_CK_EN |
>> + SUN4I_TCON0_LVDS_ANA0_REG_V |
>> + SUN4I_TCON0_LVDS_ANA0_REG_C |
>> + SUN4I_TCON0_LVDS_ANA0_EN_MB |
>> + SUN4I_TCON0_LVDS_ANA0_PD |
>> + SUN4I_TCON0_LVDS_ANA0_DCHS);
>> +
>> + udelay(2); /* delay at least 1200 ns */
>> + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA1_REG,
>> + SUN4I_TCON0_LVDS_ANA1_INIT,
>> + SUN4I_TCON0_LVDS_ANA1_INIT);
>> + udelay(1); /* delay at least 120 ns */
>> + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA1_REG,
>> + SUN4I_TCON0_LVDS_ANA1_UPDATE,
>> + SUN4I_TCON0_LVDS_ANA1_UPDATE);
>> + regmap_update_bits(tcon->regs, SUN4I_TCON0_LVDS_ANA0_REG,
>> + SUN4I_TCON0_LVDS_ANA0_EN_MB,
>> + SUN4I_TCON0_LVDS_ANA0_EN_MB);
>> +}
>> +
>> static void sun6i_tcon_setup_lvds_phy(struct sun4i_tcon *tcon,
>> const struct drm_encoder *encoder)
>> {
>> @@ -1455,7 +1479,18 @@ static const struct sun4i_tcon_quirks sun6i_a31s_quirks = {
>> .dclk_min_div = 1,
>> };
>>
>> +static const struct sun4i_tcon_quirks sun7i_a20_tcon0_quirks = {
>> + .supports_lvds = true,
>> + .has_channel_0 = true,
>> + .has_channel_1 = true,
>> + .dclk_min_div = 4,
>> + /* Same display pipeline structure as A10 */
>> + .set_mux = sun4i_a10_tcon_set_mux,
>> + .setup_lvds_phy = sun4i_tcon_setup_lvds_phy,
>> +};
>> +
>> static const struct sun4i_tcon_quirks sun7i_a20_quirks = {
>> + .supports_lvds = false,
>
> False is already the default here.
>
> I've removed it while applying
>
> Maxime
>
--
Andrey Lebedev aka -.- . -.. -.. . .-.
Software engineer
Homepage: http://lebedev.lt/
next prev parent reply other threads:[~2020-04-01 10:59 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 ` [PATCH v3 1/3] drm/sun4i: tcon: Introduce LVDS setup routine setting Andrey Lebedev
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 [this message]
2020-04-01 12:14 ` Maxime Ripard
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