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From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-renesas-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/2] arm64: dts: renesas: r8a779g0: Add DMA and MSIOF support
Date: Mon, 26 Sep 2022 17:26:22 +0200	[thread overview]
Message-ID: <cover.1664204771.git.geert+renesas@glider.be> (raw)

	Hi all,

This patch series adds support for DMA on the R-Car V4H SoC, to be used
(for now) by:
  - I2C,
  - the HSCIF0 serial port,
  - the newly-added MSIOF SPI support.

HSCIF0 DMA was tested on the White Hawk development board by removing
the uart_console() check from sci_request_dma().
MSIOF1 and MSIOF2 were tested on the MSIOF Pin Headers on the White Hawk
development board using a logic analyzer, and internal and external
loopback with the spi-loopback-test module, cfr. the DT overlays at [1].
Unfortunately I don't know how to test I2C DMA: all transfers used by
the AT24 EEPROM driver seem to be either too small, or unsafe for DMA.
Anyone who knows a good test client?

I plan to queue these in renesas-devel-for-v6.2.

Thanks!

[1] https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=topic/renesas-overlays&id=88f65e516d426aaa105416557f8157a38147cb21

Geert Uytterhoeven (2):
  arm64: dts: renesas: r8a779g0: Add DMA support
  arm64: dts: renesas: r8a779g0: Add MSIOF nodes

 arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 187 ++++++++++++++++++++++
 1 file changed, 187 insertions(+)

-- 
2.25.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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WARNING: multiple messages have this Message-ID (diff)
From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
	linux-renesas-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/2] arm64: dts: renesas: r8a779g0: Add DMA and MSIOF support
Date: Mon, 26 Sep 2022 17:26:22 +0200	[thread overview]
Message-ID: <cover.1664204771.git.geert+renesas@glider.be> (raw)

	Hi all,

This patch series adds support for DMA on the R-Car V4H SoC, to be used
(for now) by:
  - I2C,
  - the HSCIF0 serial port,
  - the newly-added MSIOF SPI support.

HSCIF0 DMA was tested on the White Hawk development board by removing
the uart_console() check from sci_request_dma().
MSIOF1 and MSIOF2 were tested on the MSIOF Pin Headers on the White Hawk
development board using a logic analyzer, and internal and external
loopback with the spi-loopback-test module, cfr. the DT overlays at [1].
Unfortunately I don't know how to test I2C DMA: all transfers used by
the AT24 EEPROM driver seem to be either too small, or unsafe for DMA.
Anyone who knows a good test client?

I plan to queue these in renesas-devel-for-v6.2.

Thanks!

[1] https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/commit/?h=topic/renesas-overlays&id=88f65e516d426aaa105416557f8157a38147cb21

Geert Uytterhoeven (2):
  arm64: dts: renesas: r8a779g0: Add DMA support
  arm64: dts: renesas: r8a779g0: Add MSIOF nodes

 arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 187 ++++++++++++++++++++++
 1 file changed, 187 insertions(+)

-- 
2.25.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

             reply	other threads:[~2022-09-26 15:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26 15:26 Geert Uytterhoeven [this message]
2022-09-26 15:26 ` [PATCH 0/2] arm64: dts: renesas: r8a779g0: Add DMA and MSIOF support Geert Uytterhoeven
2022-09-26 15:26 ` [PATCH 1/2] arm64: dts: renesas: r8a779g0: Add DMA support Geert Uytterhoeven
2022-09-26 15:26   ` Geert Uytterhoeven
2022-09-26 15:26 ` [PATCH 2/2] arm64: dts: renesas: r8a779g0: Add MSIOF nodes Geert Uytterhoeven
2022-09-26 15:26   ` Geert Uytterhoeven

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