From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/2] arm64: dts: renesas: Fix MSIOF1 DMA channels
Date: Thu, 17 Sep 2020 15:21:15 +0200 [thread overview]
Message-ID: <20200917132117.8515-1-geert+renesas@glider.be> (raw)
Hi all,
According to Technical Update TN-RCT-S0352A/E, MSIOF1 DMA can only be
used with SYS-DMAC0 on some SoCs. This patch series fixes the DTS files
for the affected SoCs,
I have tested this on Ebisu/4D with R-Car E3 using spidev_test and DT
overlays
- r8a77990-msiof1-dmac0-spidev.dtso
- r8a77990-msiof1-dmac1-spidev-bad.dtso
- r8a77990-msiof1-dmac2-spidev-bad.dtso
from
https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/log/?h=topic/renesas-overlays
The bad ones fail with:
spi_sh_msiof e6ea0000.spi: failed to start hardware
spidev spi0.0: SPI transfer failed: -110
I intend to queue these in renesas-devel for v5.10.
Thanks for your comments!
Geert Uytterhoeven (2):
arm64: dts: renesas: r8a77990: Fix MSIOF1 DMA channels
arm64: dts: renesas: r8a774c0: Fix MSIOF1 DMA channels
arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 5 ++---
arch/arm64/boot/dts/renesas/r8a77990.dtsi | 5 ++---
2 files changed, 4 insertions(+), 6 deletions(-)
--
2.17.1
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
next reply other threads:[~2020-09-17 13:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-17 13:21 Geert Uytterhoeven [this message]
2020-09-17 13:21 ` [PATCH 1/2] arm64: dts: renesas: r8a77990: Fix MSIOF1 DMA channels Geert Uytterhoeven
2020-09-19 9:34 ` Ulrich Hecht
2020-09-17 13:21 ` [PATCH 2/2] arm64: dts: renesas: r8a774c0: " Geert Uytterhoeven
2020-09-19 9:36 ` Ulrich Hecht
2020-09-21 7:33 ` Geert Uytterhoeven
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