From: Zong Li <zong.li@sifive.com>
To: robh+dt@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com,
conor.dooley@microchip.com, geert@linux-m68k.org,
bin.meng@windriver.com, green.wan@sifive.com, vkoul@kernel.org,
dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Cc: Zong Li <zong.li@sifive.com>
Subject: [PATCH 0/3] Determine number of DMA channels by 'dma-channels' property
Date: Wed, 5 Jan 2022 12:38:36 +0800 [thread overview]
Message-ID: <cover.1641289490.git.zong.li@sifive.com> (raw)
The PDMA driver currently assumes there are four channels by default, it
might cause the error if there is actually less than four channels.
Change that by getting number of channel dynamically from device tree.
This patch set contains the dts and dt-bindings change.
Zong Li (3):
riscv: dts: Add dma-channels property in dma node
dt-bindings: Add dma-channels for pdma device node
dmaengine: sf-pdma: Get number of channel by device tree
.../bindings/dma/sifive,fu540-c000-pdma.yaml | 6 ++++++
arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 1 +
arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 1 +
drivers/dma/sf-pdma/sf-pdma.c | 15 +++++++++------
drivers/dma/sf-pdma/sf-pdma.h | 8 ++------
5 files changed, 19 insertions(+), 12 deletions(-)
--
2.31.1
WARNING: multiple messages have this Message-ID
From: Zong Li <zong.li@sifive.com>
To: robh+dt@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, krzysztof.kozlowski@canonical.com,
conor.dooley@microchip.com, geert@linux-m68k.org,
bin.meng@windriver.com, green.wan@sifive.com, vkoul@kernel.org,
dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org
Cc: Zong Li <zong.li@sifive.com>
Subject: [PATCH 0/3] Determine number of DMA channels by 'dma-channels' property
Date: Wed, 5 Jan 2022 13:43:57 +0800 [thread overview]
Message-ID: <cover.1641289490.git.zong.li@sifive.com> (raw)
Message-ID: <20220105054357.reQHhzvcHr5lBu83nR6ieJptIC1oJ5nE26rryzU5kvk@z> (raw)
The PDMA driver currently assumes there are four channels by default, it
might cause the error if there is actually less than four channels.
Change that by getting number of channel dynamically from device tree.
This patch set contains the dts and dt-bindings change.
Zong Li (3):
riscv: dts: Add dma-channels property in dma node
dt-bindings: Add dma-channels for pdma device node
dmaengine: sf-pdma: Get number of channel by device tree
.../bindings/dma/sifive,fu540-c000-pdma.yaml | 6 ++++++
arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 1 +
arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 1 +
drivers/dma/sf-pdma/sf-pdma.c | 15 +++++++++------
drivers/dma/sf-pdma/sf-pdma.h | 8 ++------
5 files changed, 19 insertions(+), 12 deletions(-)
--
2.31.1
next reply other threads:[~2022-01-05 4:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-05 4:38 Zong Li [this message]
2022-01-05 5:43 ` Zong Li
2022-01-05 5:43 ` [PATCH 1/3] riscv: dts: Add dma-channels property in dma node Zong Li
2022-01-05 5:43 ` [PATCH 2/3] dt-bindings: Add dma-channels for pdma device node Zong Li
2022-01-10 9:00 ` Geert Uytterhoeven
2022-01-11 1:56 ` Zong Li
2022-01-05 5:44 ` [PATCH 3/3] dmaengine: sf-pdma: Get number of channel by device tree Zong Li
2022-01-10 8:57 ` Geert Uytterhoeven
2022-01-10 10:03 ` Zong Li
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