linux-kernel - [PATCH v2 2/3] reset: reset-meson: Add support for Amlogic T7 SoC reset controller

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Date: Mon, 22 Apr 2024 19:11:44 +0800
From: Kelvin Zhang via B4 Relay <devnull+kelvin.zhang.amlogic.com@...nel.org>
To: Philipp Zabel <p.zabel@...gutronix.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Zelong Dong <zelong.dong@...ogic.com>, 
 Kelvin Zhang <kelvin.zhang@...ogic.com>
Subject: [PATCH v2 2/3] reset: reset-meson: Add support for Amlogic T7 SoC
 reset controller

From: Zelong Dong <zelong.dong@...ogic.com>

There are 7 sets of Reset Source in Amlogic T7 SoC reset controller,
and the offset between base and level registers is 0x40.
Add a new compatible string and struct meson_reset_param to support
the reset controller on T7 SoC.

Signed-off-by: Zelong Dong <zelong.dong@...ogic.com>
Signed-off-by: Kelvin Zhang <kelvin.zhang@...ogic.com>
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 drivers/reset/reset-meson.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/reset/reset-meson.c b/drivers/reset/reset-meson.c
index f78be97898bc..1e9fca3e30e8 100644
--- a/drivers/reset/reset-meson.c
+++ b/drivers/reset/reset-meson.c
@@ -102,6 +102,11 @@ static const struct meson_reset_param meson_s4_param = {
 	.level_offset	= 0x40,
 };
 
+static const struct meson_reset_param t7_param = {
+	.reg_count      = 7,
+	.level_offset   = 0x40,
+};
+
 static const struct of_device_id meson_reset_dt_ids[] = {
 	 { .compatible = "amlogic,meson8b-reset",    .data = &meson8b_param},
 	 { .compatible = "amlogic,meson-gxbb-reset", .data = &meson8b_param},
@@ -109,6 +114,7 @@ static const struct of_device_id meson_reset_dt_ids[] = {
 	 { .compatible = "amlogic,meson-a1-reset",   .data = &meson_a1_param},
 	 { .compatible = "amlogic,meson-s4-reset",   .data = &meson_s4_param},
 	 { .compatible = "amlogic,c3-reset",   .data = &meson_s4_param},
+	 { .compatible = "amlogic,t7-reset",   .data = &t7_param},
 	 { /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, meson_reset_dt_ids);

-- 
2.37.1