From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Samuel Holland <samuel@sholland.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Maxime Ripard <maxime@cerno.tech>,
Sasha Levin <sashal@kernel.org>,
mripard@kernel.org, wens@csie.org, airlied@linux.ie,
daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev
Subject: [PATCH AUTOSEL 5.4 20/55] drm/sun4i: Add support for D1 TCONs
Date: Mon, 30 May 2022 09:46:26 -0400 [thread overview]
Message-ID: <20220530134701.1935933-20-sashal@kernel.org> (raw)
In-Reply-To: <20220530134701.1935933-1-sashal@kernel.org>
From: Samuel Holland <samuel@sholland.org>
[ Upstream commit b9b52d2f4aafa2bd637ace0f24615bdad8e49f01 ]
D1 has a TCON TOP, so its quirks are similar to those for the R40 TCONs.
While there are some register changes, the part of the TCON TV supported
by the driver matches the R40 quirks, so that quirks structure can be
reused. D1 has the first supported TCON LCD with a TCON TOP, so the TCON
LCD needs a new quirks structure.
D1's TCON LCD hardware supports LVDS; in fact it provides dual-link LVDS
from a single TCON. However, it comes with a brand new LVDS PHY. Since
this PHY has not been tested, leave out LVDS driver support for now.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220424162633.12369-14-samuel@sholland.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index eb3b2350687f..9687f2b9652d 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -1509,6 +1509,12 @@ static const struct sun4i_tcon_quirks sun9i_a80_tcon_tv_quirks = {
.needs_edp_reset = true,
};
+static const struct sun4i_tcon_quirks sun20i_d1_lcd_quirks = {
+ .has_channel_0 = true,
+ .dclk_min_div = 1,
+ .set_mux = sun8i_r40_tcon_tv_set_mux,
+};
+
/* sun4i_drv uses this list to check if a device node is a TCON */
const struct of_device_id sun4i_tcon_of_table[] = {
{ .compatible = "allwinner,sun4i-a10-tcon", .data = &sun4i_a10_quirks },
@@ -1526,6 +1532,8 @@ const struct of_device_id sun4i_tcon_of_table[] = {
{ .compatible = "allwinner,sun8i-v3s-tcon", .data = &sun8i_v3s_quirks },
{ .compatible = "allwinner,sun9i-a80-tcon-lcd", .data = &sun9i_a80_tcon_lcd_quirks },
{ .compatible = "allwinner,sun9i-a80-tcon-tv", .data = &sun9i_a80_tcon_tv_quirks },
+ { .compatible = "allwinner,sun20i-d1-tcon-lcd", .data = &sun20i_d1_lcd_quirks },
+ { .compatible = "allwinner,sun20i-d1-tcon-tv", .data = &sun8i_r40_tv_quirks },
{ }
};
MODULE_DEVICE_TABLE(of, sun4i_tcon_of_table);
--
2.35.1
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next parent reply other threads:[~2022-05-30 14:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220530134701.1935933-1-sashal@kernel.org>
2022-05-30 13:46 ` Sasha Levin [this message]
2022-05-30 13:46 ` [PATCH AUTOSEL 5.4 22/55] arm64/sme: Add ID_AA64SMFR0_EL1 to __read_sysreg_by_encoding() Sasha Levin
2022-05-30 13:46 ` [PATCH AUTOSEL 5.4 25/55] arm64: compat: Do not treat syscall number as ESR_ELx for a bad syscall Sasha Levin
2022-05-30 13:46 ` [PATCH AUTOSEL 5.4 36/55] spi: stm32-qspi: Fix wait_cmd timeout in APM mode Sasha Levin
2022-05-30 13:46 ` [PATCH AUTOSEL 5.4 49/55] media: exynos4-is: Fix compile warning Sasha Levin
2022-05-30 13:46 ` [PATCH AUTOSEL 5.4 51/55] ARM: 9201/1: spectre-bhb: rely on linker to emit cross-section literal loads Sasha Levin
2022-05-30 13:52 ` Ard Biesheuvel
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