From: "Markus Schneider-Pargmann (TI)" <msp@baylibre.com>
To: Vinod Koul <vkoul@kernel.org>, Frank Li <Frank.Li@kernel.org>,
Tony Lindgren <tony@atomide.com>, Daniel Mack <zonque@gmail.com>
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
Julien Panis <jpanis@baylibre.com>, "Mendez, Judith" <jm@ti.com>,
"Francis, Sebin" <sebin.francis@ti.com>,
"Markus Schneider-Pargmann (TI)" <msp@baylibre.com>,
stable@vger.kernel.org
Subject: [PATCH 0/4] dmaengine: ti: cppi41: Fix suspend/resume issues
Date: Tue, 03 Nov 2026 20:37:27 +0100 [thread overview]
Message-ID: <20261103-v7-3-topic-am335lpm-cppi41-v1-0-d7213446c5f5@baylibre.com> (raw)
Hi,
there are some issues with cppi41 regarding suspend/resume. This series
fixes suspend/resume when the device is currently runtime suspended. It
also fixes an incomplete restore of QMGR_MEMCTRL during resume. To make
the restore on resume more reliable the last patch unifies the register
writes for init and resume.
I tested this series with am335x-evm
Best,
Markus
Signed-off-by: Markus Schneider-Pargmann (TI) <msp@baylibre.com>
---
Markus Schneider-Pargmann (TI) (4):
dmaengine: ti: cppi41: Use td_queue to restore DMA_TDFDQ
dmaengine: ti: cppi41: Fix register access in suspend_late
dmaengine: ti: cppi41: Restore QMGR_MEMCTRL in resume
dmaengine: ti: cppi41: Share register setup with resume
drivers/dma/ti/cppi41.c | 74 ++++++++++++++++++++++++++++---------------------
1 file changed, 43 insertions(+), 31 deletions(-)
---
base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
change-id: 20261030-v7-3-topic-am335lpm-cppi41-b180a2d62987
Best regards,
--
Markus Schneider-Pargmann (TI) <msp@baylibre.com>
next reply other threads:[~2026-11-03 19:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-03 19:37 Markus Schneider-Pargmann (TI) [this message]
2026-11-03 19:37 ` [PATCH 1/4] dmaengine: ti: cppi41: Use td_queue to restore DMA_TDFDQ Markus Schneider-Pargmann (TI)
2026-11-03 19:37 ` [PATCH 2/4] dmaengine: ti: cppi41: Fix register access in suspend_late Markus Schneider-Pargmann (TI)
2026-11-03 19:37 ` [PATCH 3/4] dmaengine: ti: cppi41: Restore QMGR_MEMCTRL in resume Markus Schneider-Pargmann (TI)
2026-11-03 19:37 ` [PATCH 4/4] dmaengine: ti: cppi41: Share register setup with resume Markus Schneider-Pargmann (TI)
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