[PATCH v2 3/3] Input: sun4i-lradc-keys: Add support for R329 and D1

From: Samuel Holland <samuel@sholland.org>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Hans de Goede <hdegoede@redhat.com>
Cc: Samuel Holland <samuel@sholland.org>,
	Maxime Ripard <maxime@cerno.tech>, Rob Herring <robh@kernel.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Maxime Ripard <mripard@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH v2 3/3] Input: sun4i-lradc-keys: Add support for R329 and D1
Date: Wed, 13 Apr 2022 19:23:48 -0500	[thread overview]
Message-ID: <20220414002349.24332-3-samuel@sholland.org> (raw)
In-Reply-To: <20220414002349.24332-1-samuel@sholland.org>

This LRADC variant uses the same 3/4*AVCC reference voltage as the A83T
variant. The R329 and D1 LRADCs appear to be identical, so D1 support is
accomplished through having the R329 LRADC as a fallback compatible.

Signed-off-by: Samuel Holland <samuel@sholland.org>
---

Changes in v2:
 - Set the new flag for the R329 variant.

 drivers/input/keyboard/sun4i-lradc-keys.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/input/keyboard/sun4i-lradc-keys.c b/drivers/input/keyboard/sun4i-lradc-keys.c
index 5630334a6c09..8f9bfb05244d 100644
--- a/drivers/input/keyboard/sun4i-lradc-keys.c
+++ b/drivers/input/keyboard/sun4i-lradc-keys.c
@@ -78,6 +78,12 @@ static const struct lradc_variant r_lradc_variant_a83t = {
 	.divisor_denominator = 4
 };
 
+static const struct lradc_variant lradc_variant_r329 = {
+	.divisor_numerator = 3,
+	.divisor_denominator = 4,
+	.has_clock_reset = true,
+};
+
 struct sun4i_lradc_keymap {
 	u32 voltage;
 	u32 keycode;
@@ -323,6 +329,8 @@ static const struct of_device_id sun4i_lradc_of_match[] = {
 		.data = &lradc_variant_a10 },
 	{ .compatible = "allwinner,sun8i-a83t-r-lradc",
 		.data = &r_lradc_variant_a83t },
+	{ .compatible = "allwinner,sun50i-r329-lradc",
+		.data = &lradc_variant_r329 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sun4i_lradc_of_match);
-- 
2.35.1

