Re: [PATCH v2] ARM: dts: da850: add the mstpri and ddrctl nodes

From: David Lechner
Date: Wed Nov 23 2016 - 11:20:03 EST


On 11/23/2016 04:27 AM, Bartosz Golaszewski wrote:
2016-11-22 23:23 GMT+01:00 David Lechner <david@xxxxxxxxxxxxxx>:
On 11/15/2016 05:00 AM, Bartosz Golaszewski wrote:

Add the nodes for the MSTPRI configuration and DDR2/mDDR memory
controller drivers to da850.dtsi.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
v1 -> v2:
- moved the priority controller node above the cfgchip node
- renamed added nodes to better reflect their purpose

arch/arm/boot/dts/da850.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 1bb1f6d..412eec6 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -210,6 +210,10 @@
};

};
+ prictrl: priority-controller@14110 {
+ compatible = "ti,da850-mstpri";
+ reg = <0x14110 0x0c>;


I think we should add status = "disabled"; here and let boards opt in.

+ };
cfgchip: chip-controller@1417c {
compatible = "ti,da830-cfgchip", "syscon",
"simple-mfd";
reg = <0x1417c 0x14>;
@@ -451,4 +455,8 @@
1 0 0x68000000 0x00008000>;
status = "disabled";
};
+ memctrl: memory-controller@b0000000 {
+ compatible = "ti,da850-ddr-controller";
+ reg = <0xb0000000 0xe8>;


same here. status = "disabled";

+ };
};


Hi David,

I did that initially[1][2] and it was rejected by Kevin[3] and Laurent[4].

FYI this patch has already been queued by Sekhar.

Thanks. I did not see those threads.

FYI to maintainers, having these enabled by default causes error messages in the kernel log for other boards that are not supported by the drivers. Since there is only one board that is supported and soon to be 2 that are not, I would rather have this disabled by default to avoid the error messages.


Best regards,
Bartosz Golaszewski

[1] https://www.spinics.net/lists/arm-kernel/msg539638.html
[2] http://www.spinics.net/lists/devicetree/msg148575.html
[3] http://www.spinics.net/lists/devicetree/msg148667.html
[4] http://www.spinics.net/lists/devicetree/msg148655.html