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| author | Mian Yousaf Kaukab <ykaukab@suse.de> | 2021-04-28 15:58:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-25 15:37:29 +0300 |
| commit | 5345699a52970820b0abb25db61f5086497d2d43 (patch) | |
| tree | fe4aa0b4140a9957e095eb7e234c4190197b51b4 /arch/arm64/boot | |
| parent | cef210690a7afa6e5fd36c110cead6aa9ed6fa63 (diff) | |
| download | linux-5345699a52970820b0abb25db61f5086497d2d43.tar.xz | |
arm64: dts: ls208xa: remove bus-num from dspi node
[ Upstream commit 8240c972c1798ea013cbb407722295fc826b3584 ]
On LS2088A-RDB board, if the spi-fsl-dspi driver is built as module
then its probe fails with the following warning:
[ 10.471363] couldn't get idr
[ 10.471381] WARNING: CPU: 4 PID: 488 at drivers/spi/spi.c:2689 spi_register_controller+0x73c/0x8d0
...
[ 10.471651] fsl-dspi 2100000.spi: Problem registering DSPI ctlr
[ 10.471708] fsl-dspi: probe of 2100000.spi failed with error -16
Reason for the failure is that bus-num property is set for dspi node.
However, bus-num property is not set for the qspi node. If probe for
spi-fsl-qspi happens first then id 0 is dynamically allocated to it.
Call to spi_register_controller() from spi-fsl-dspi driver then fails.
Since commit 29d2daf2c33c ("spi: spi-fsl-dspi: Make bus-num property
optional") bus-num property is optional. Remove bus-num property from
dspi node to fix the issue.
Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi index 135ac8210871..801ba9612d36 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi @@ -929,7 +929,6 @@ QORIQ_CLK_PLL_DIV(4)>; clock-names = "dspi"; spi-num-chipselects = <5>; - bus-num = <0>; }; esdhc: esdhc@2140000 { |