linux-kernel - [PATCH v3 4/5] pmdomain: sunxi: sun20i-ppu: change to tristate and enable for ARCH

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Message-Id: <20250712074021.805953-5-wens@kernel.org>
Date: Sat, 12 Jul 2025 15:40:20 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej@...nel.org>,
	Samuel Holland <samuel@...lland.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: Andre Przywara <andre.przywara@....com>,
	linux-sunxi@...ts.linux.dev,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org
Subject: [PATCH v3 4/5] pmdomain: sunxi: sun20i-ppu: change to tristate and enable for ARCH_SUNXI

From: Chen-Yu Tsai <wens@...e.org>

There is no reason why the sun20i-ppu cannot be built as a module. So
change it to tristate.

Also enable it by default for ARCH_SUNXI since this driver is required
for some peripherals to work, and update the help text to reflect this
requirement.

This aligns it with the new PCK-600 driver.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
Changes since v2:
- New patch
---
 drivers/pmdomain/sunxi/Kconfig | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/pmdomain/sunxi/Kconfig b/drivers/pmdomain/sunxi/Kconfig
index eb1ce2dd8e53..858446594c88 100644
--- a/drivers/pmdomain/sunxi/Kconfig
+++ b/drivers/pmdomain/sunxi/Kconfig
@@ -1,13 +1,15 @@
 # SPDX-License-Identifier: GPL-2.0-only
 
 config SUN20I_PPU
-	bool "Allwinner D1 PPU power domain driver"
+	tristate "Allwinner D1 PPU power domain driver"
 	depends on ARCH_SUNXI || COMPILE_TEST
 	depends on PM
+	default ARCH_SUNXI
 	select PM_GENERIC_DOMAINS
 	help
-	  Say y to enable the PPU power domain driver. This saves power
-	  when certain peripherals, such as the video engine, are idle.
+	  Say y to enable the PPU power domain driver. This is required
+	  to enable power to certain peripherals, such as the display
+	  engine.
 
 config SUN50I_H6_PRCM_PPU
 	tristate "Allwinner H6 PRCM power domain driver"
-- 
2.39.5