linux-kernel - [PATCH 0/4] cache: sifive_ccache: Auxiliary device support

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Date: Wed, 10 Apr 2024 16:22:02 -0700
From: Samuel Holland <samuel.holland@...ive.com>
To: Conor Dooley <conor@...nel.org>,
	linux-riscv@...ts.infradead.org
Cc: Samuel Holland <samuel.holland@...ive.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] cache: sifive_ccache: Auxiliary device support

As of commit c90847bcbfb6 ("cache: sifive_ccache: Partially convert to a
platform driver"), the cache subsystem binds a platform driver to the
Composable Cache's DT node. This prevents the perf subsystem from doing
the same for the new PMU driver[1]. To allow using both drivers at the
same time without conflicts or module linkage dependencies, attach the
PMU driver to the auxiliary device bus. While at it, prepare to use the
auxiliary device bus for the EDAC driver as well, which significantly
simplifies that driver. The actual EDAC driver conversion has to wait
another development cycle to avoid dependencies between git trees.

[1]: https://lore.kernel.org/linux-riscv/20240216000837.1868917-3-samuel.holland@sifive.com/

Samuel Holland (4):
  cache: sifive_ccache: Silence unused variable warning
  cache: sifive_ccache: Use of_iomap() helper
  cache: sifive_ccache: Export base address for child drivers
  cache: sifive_ccache: Add EDAC and PMU as auxiliary devices

 drivers/cache/Kconfig              |  1 +
 drivers/cache/sifive_ccache.c      | 94 +++++++++++++++++++++---------
 include/soc/sifive/sifive_ccache.h |  8 +++
 3 files changed, 74 insertions(+), 29 deletions(-)

-- 
2.44.0