Re: [PATCH v7 2/2] arm64: dts: qcom: sc7280: add lpass lpi pin controller node

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On 4/13/2022 5:29 AM, Matthias Kaehlcke wrote:
Thanks for your time and valuable suggestions Matthias!!!
On Tue, Apr 12, 2022 at 06:41:25PM +0530, Srinivasa Rao Mandadapu wrote:
On 4/12/2022 6:18 PM, Srinivasa Rao Mandadapu wrote:
On 4/12/2022 1:02 AM, Matthias Kaehlcke wrote:
Thanks for your time Matthias!!!
On Mon, Apr 11, 2022 at 07:23:04PM +0530, Srinivasa Rao Mandadapu wrote:
Add LPASS LPI pinctrl node required for Audio functionality on sc7280
based platforms.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@xxxxxxxxxxx>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@xxxxxxxxxxx>
---
   arch/arm64/boot/dts/qcom/sc7280-idp.dtsi |  84
++++++++++++++++++++++++
   arch/arm64/boot/dts/qcom/sc7280.dtsi     | 107
+++++++++++++++++++++++++++++++
   2 files changed, 191 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 4ba2274..ea751dc 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -238,6 +238,90 @@
       modem-init;
   };
   +&dmic01 {
Shouldn't these nodes be in the PINCTRL section at their respective
positions in alphabetical order?
These are not part of tlmm pin control section. These are part of
lpass_tlmm section.

In your previous comment you asked to remove &lpass_tlmm. Hence brought
out.

nit: since you are keeping the groups the group names are a bit
generic IMO.
e.g. it is fairly obvious that 'dmic01_clk' refers to a clock pin,
however
just 'dmic01' is a bit vague. You could consider adding the prefix
'lpass_'
to the group names for more clarity.
as dmic01 has both clk and data section, I don't think keeping clk is
appropriate here.
As these nodes are part of SC7280, i.e. qcom specific chipset, I feel lpass_
is redundant.
It helps to provide some context about the pins which might not be evident
from their short names like 'dmic01' or 'rx_swr'. A nice side effect is that
the pins/groups would grouped automatically together in alphabetic ordering.

In terms of 'redundancy' it is similar to 'qup_' prefix for the I2C/SPI/UART
pins.
Agree. Will change accordingly. similarly will append lpass_ torx/tx/va mcro device node names.

If we add lpass_ to all dmic nodes, some node names are too lengthy.
The longest would be like 'lpass_dmic01_sleep' or 'lpass_rx_swr_sleep', which
doesn't seem outrageous.

In any case it's not super important. If it bothers someone enough later
on they can always send a patch that changes it.
Okay.



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