From: Artem Shimko <a.shimko.dev@gmail.com>
To: Vinod Koul <vkoul@kernel.org>, Philipp Zabel <p.zabel@pengutronix.de>
Cc: Artem Shimko <a.shimko.dev@gmail.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Subject: [PATCH v2 0/2] dmaengine: dw-axi-dmac: PM cleanup and reset control support
Date: Mon, 13 Oct 2025 18:02:31 +0300 [thread overview]
Message-ID: <20251013150234.3200627-1-a.shimko.dev@gmail.com> (raw)
This patch series improves the dw-axi-dmac driver in two areas:
Patch 1 simplifies the power management code by using modern kernel
macros and removing redundant wrapper functions, making the code more
maintainable and aligned with current kernel practices.
Patch 2 adds proper reset control support to ensure reliable
initialization and power management, handling resets during probe,
remove, and suspend/resume operations.
ChangeLog:
v1:
* https://lore.kernel.org/all/20251012100002.2959213-1-a.shimko.dev@gmail.com/T/#t
v2:
* Remove has_resets flag and use reset_control_assert/deassert() unconditionally,
as these functions handle NULL pointers internally
* Replace devm_reset_control_array_get_exclusive() with
devm_reset_control_array_get_optional_exclusive() to handle platforms
without reset controls gracefully
* Simplify error handling by removing redundant flag checks
* Remove has_resets field from struct axi_dma_chip as it's no longer needed
Artem Shimko (2):
dmaengine: dw-axi-dmac: simplify PM functions and use modern macros
dmaengine: dw-axi-dmac: add reset control support
.../dma/dw-axi-dmac/dw-axi-dmac-platform.c | 66 ++++++++-----------
drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 +
2 files changed, 30 insertions(+), 37 deletions(-)
--
2.43.0
next reply other threads:[~2025-10-13 15:03 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-13 15:02 Artem Shimko [this message]
2025-10-13 15:02 ` [PATCH v2 1/2] dmaengine: dw-axi-dmac: simplify PM functions and use modern macros Artem Shimko
2025-10-13 15:02 ` [PATCH v2 2/2] dmaengine: dw-axi-dmac: add reset control support Artem Shimko
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