Re: [EXT] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for QSPI flash

On Fri, Oct 1, 2021 at 12:30 AM Kuldeep Singh [off-list ref] wrote:

Hi Leo,

quoted

-----Original Message-----
From: Li Yang <redacted>
Sent: Friday, October 1, 2021 5:34 AM
To: Shawn Guo <shawnguo@kernel.org>; Rob Herring
[off-list ref]; devicetree@vger.kernel.org; Oleksij Rempel
[off-list ref]; linux-arm-kernel@lists.infradead.org; linux-
kernel@vger.kernel.org
Cc: Leo Li <redacted>
Subject: [EXT] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for QSPI
flash

Caution: EXT Email

Add the missing node for qspi flash.

Signed-off-by: Li Yang <redacted>
---
 arch/arm/boot/dts/ls1021a-qds.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm/boot/dts/ls1021a-qds.dts

b/arch/arm/boot/dts/ls1021a-qds.dts
index e2aa569ff404..522e1dc51059 100644

--- a/arch/arm/boot/dts/ls1021a-qds.dts
+++ b/arch/arm/boot/dts/ls1021a-qds.dts

@@ -286,6 +286,21 @@ tbi0: tbi-phy@8 {
        };
 };

+&qspi {
+       num-cs = <2>;

Please drop "num-cs" property as it is not used by qspi driver.

quoted

+       status = "okay";
+
+       qflash0: flash@0 {

Can we have flash chip name instead of qflash?
There is no hard requirement, it will help in aligning node properties with other board properties such as LX2160A-RDB, LS1046A-RDB etc.

Thanks for the review.  I find that there is no reference to the label
at all.  I don't know why we added it in the first place.  Probably we
can just remove it?

With above fixed,
Reviewed-by: Kuldeep Singh <redacted>

quoted

+               compatible = "jedec,spi-nor";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               spi-max-frequency = <20000000>;
+               reg = <0>;
+               spi-rx-bus-width = <4>;
+               spi-tx-bus-width = <4>;
+       };
+};
+
 &sai2 {
        status = "okay";
 };
--
2.25.1

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