Hi Abhishek, On 2/3/2018 5:07 PM, Abhishek Sahu wrote: > On 2018-01-29 10:41, Sricharan R wrote: >> Signed-off-by: Sricharan R <sricharan@xxxxxxxxxxxxxx> >> --- >> arch/arm/boot/dts/Makefile | 1 + >> arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c3.dts | 14 ++++++++++++++ >> 2 files changed, 15 insertions(+) >> create mode 100644 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c3.dts >> >> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile >> index 68e4b15..0104ba2 100644 >> --- a/arch/arm/boot/dts/Makefile >> +++ b/arch/arm/boot/dts/Makefile >> @@ -727,6 +727,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \ >> qcom-ipq4019-ap.dk01.1-c2.dtb \ >> qcom-ipq4019-ap.dk04.1-c1.dtb \ >> qcom-ipq4019-ap.dk04.1-c5.dtb \ >> + qcom-ipq4019-ap.dk04.1-c3.dtb \ >> qcom-ipq8064-ap148.dtb \ >> qcom-msm8660-surf.dtb \ >> qcom-msm8960-cdp.dtb \ >> diff --git a/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c3.dts >> b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c3.dts >> new file mode 100644 >> index 0000000..7a93fc4 >> --- /dev/null >> +++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c3.dts >> @@ -0,0 +1,14 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +// Copyright (c) 2017, The Linux Foundation. All rights reserved. >> + >> +#include "qcom-ipq4019-ap.dk04.1.dtsi" >> + >> +/ { >> + model = "Qualcomm Technologies, Inc. IPQ4019/AP-DK04.1-C3"; >> + >> + soc { >> + nand: qpic-nand@79b0000 { >> + status = "disabled"; >> + }; > > Normally we need to disable in base dtsi and enable in > board dtsi so that base dtsi will always work in all the > boards. Now If We load the base dtsi in any DK04 board > other than C1, then nand failure will come. Hmm, qpic nand is not there only on C3 and available in rest of dk04-c* variants. So it should work, downstream also does it in same way. Anyways, from a readability point, feel that better to make these uncommon configurations in each board file specifically rather than putting in common file and changing like this. Regards, Sricharan -- "QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html