linux-kernel - [PATCH 6/8] soc: tenstorrent: Add auxiliary device definitions for Atlantis

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Message-Id: <20260115-atlantis-clocks-v1-6-7356e671f28b@oss.tenstorrent.com>
Date: Thu, 15 Jan 2026 17:42:05 -0600
From: Anirudh Srinivasan <asrinivasan@....tenstorrent.com>
To: Drew Fustini <dfustini@....tenstorrent.com>, 
 Joel Stanley <jms@....tenstorrent.com>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, 
 Anirudh Srinivasan <asrinivasan@....tenstorrent.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org, joel@....id.au, 
 fustini@...nel.org, mpe@...nel.org, mpe@....tenstorrent.com, 
 npiggin@....tenstorrent.com, agross@...nel.org, agross@....tenstorrent.com
Subject: [PATCH 6/8] soc: tenstorrent: Add auxiliary device definitions for
 Atlantis

Reset shares the same registers as the Clock Controller, so it is
implemented as an auxiliary device of the Clock Controller.

This commit adds the auxiliary device definitions needed for this.

Signed-off-by: Anirudh Srinivasan <asrinivasan@....tenstorrent.com>
---
 include/soc/tenstorrent/atlantis-syscon.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/soc/tenstorrent/atlantis-syscon.h b/include/soc/tenstorrent/atlantis-syscon.h
index f1dc6ad33c6d..972a9b7da596 100644
--- a/include/soc/tenstorrent/atlantis-syscon.h
+++ b/include/soc/tenstorrent/atlantis-syscon.h
@@ -8,6 +8,14 @@
 #include <linux/bits.h>
 #include <linux/types.h>
 
+struct atlantis_ccu_adev {
+	struct auxiliary_device adev;
+	struct regmap *regmap;
+};
+
+#define to_atlantis_ccu_adev(_adev) \
+	container_of((_adev), struct atlantis_ccu_adev, adev)
+
 /* RCPU Clock Register Offsets */
 #define RCPU_PLL_CFG_REG 0x0000
 #define RCPU_NOCC_PLL_CFG_REG 0x0004

-- 
2.43.0