-----Original Message-----
From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@canonical.com]
Sent: Monday, January 17, 2022 7:20 PM
To: Alim Akhtar <alim.akhtar@samsung.com>; linux-arm-
kernel@lists.infradead.org; linux-kernel@vger.kernel.org
Cc: soc@kernel.org; linux-clk@vger.kernel.org; devicetree@vger.kernel.org;
olof@lixom.net; linus.walleij@linaro.org; catalin.marinas@arm.com;
robh+dt@kernel.org; s.nawrocki@samsung.com; linux-samsung-
soc@vger.kernel.org; pankaj.dubey@samsung.com; linux-fsd@tesla.com;
'Shashank Prashar' [off-list ref]; 'Aswani Reddy'
[off-list ref]
Subject: Re: [PATCH 15/23] arm64: dts: fsd: Add initial pinctrl support

On 17/01/2022 14:44, Alim Akhtar wrote:

quoted

Hi Krzysztof

quoted

-----Original Message-----
From: Krzysztof Kozlowski [mailto:krzysztof.kozlowski@canonical.com]
Sent: Thursday, January 13, 2022 6:50 PM
To: Alim Akhtar <alim.akhtar@samsung.com>; linux-arm-
kernel@lists.infradead.org; linux-kernel@vger.kernel.org
Cc: soc@kernel.org; linux-clk@vger.kernel.org;
devicetree@vger.kernel.org; olof@lixom.net; linus.walleij@linaro.org;
catalin.marinas@arm.com;
robh+dt@kernel.org; s.nawrocki@samsung.com; linux-samsung-
soc@vger.kernel.org; pankaj.dubey@samsung.com; linux-fsd@tesla.com;
Shashank Prashar [off-list ref]; Aswani Reddy
[off-list ref]
Subject: Re: [PATCH 15/23] arm64: dts: fsd: Add initial pinctrl
support

On 13/01/2022 13:11, Alim Akhtar wrote:

quoted

Add initial pin configuration nodes for FSD SoC.

Cc: linux-fsd@tesla.com
Signed-off-by: Shashank Prashar <redacted>
Signed-off-by: Aswani Reddy <redacted>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
---
 arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 338

+++++++++++++++++++++

quoted

 arch/arm64/boot/dts/tesla/fsd.dtsi         |  22 ++
 2 files changed, 360 insertions(+)
 create mode 100644 arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi

diff --git a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi

b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
new file mode 100644
index 000000000000..ec8d944af636

--- /dev/null
+++ b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi

@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tesla Full Self-Driving SoC device tree source
+ *
+ * Copyright (c) 2017-2021 Samsung Electronics Co., Ltd.
+ *		https://www.samsung.com
+ * Copyright (c) 2017-2021 Tesla, Inc.
+ *		https://www.tesla.com
+ */
+
+#include <dt-bindings/pinctrl/samsung.h>
+
+&pinctrl_fsys0 {
+

No need for empty line.

Noted

quoted

quoted

+	gpf0: gpf0 {

FYI:
It's ok now, but the nodes will have to be renamed to "xxx-gpio-bank"

later.

quoted

quoted

Have rebased my v2 on your pinmux schema update, so these and below

comments are addressed.

quoted

Thanks

OK, but have in mind that -gpio-bank suffix is not needed now. This depends
on support in the pinctrl driver, which will be applied after the merge window
to different tree or branches than DTS is going to.
Therefore if I apply your DTS with "-gpio-bank" to my next/dt64, the kernel
won't find GPIo banks and won't properly boot. The linux-next will be fine,
just my next/dt64 won't be.

Thanks, got it, for now let me send v2 on linux-next (as of today).
As required I will rebase to your next/dt64 and send again.
Which also means that my v2 will not be based on your new pinmux schema.
Probably we will move to that after the merge window.

If you're fine with it - use "-gpio-bank" suffix. If you prefer my
next/dt64 to have a fully working Tesla SoC DTS, then stick to old node naming
and let's replace it later.

Best regards,
Krzysztof

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