[RESEND][PATCH v5] mfd: simple-mfd-i2c: add a reboot cell for the SpacemiT P1 chip

From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Lee Jones <lee@kernel.org>,
	Yixun Lan <dlan@kernel.org>,
	linux-riscv@lists.infradead.org (open list:RISC-V SPACEMIT SoC
	Support:Keyword:spacemit),
	spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC
	Support:Keyword:spacemit)
Cc: Aurelien Jarno <aurelien@aurel32.net>
Subject: [RESEND][PATCH v5] mfd: simple-mfd-i2c: add a reboot cell for the SpacemiT P1 chip
Date: Wed,  1 Apr 2026 18:50:37 +0200	[thread overview]
Message-ID: <20260401165437.1048786-3-aurelien@aurel32.net> (raw)

Add a "spacemit-p1-reboot" cell for the SpacemiT P1 chip.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 drivers/mfd/simple-mfd-i2c.c | 1 +
 1 file changed, 1 insertion(+)

Note that the spacemit-p1-reboot driver requires PIO support in the
spacemit i2C driver [1]. This hasn't been merged despite being ready for
weeks.

That said it's not a hard dependency, in most cases reboot will just
work, which is an improvement over no reboot driver. The PIO supports
just makes the reboot driver reliable.

[1] https://lore.kernel.org/lkml/20260207-b4-k3-i2c-pio-v7-2-626942d94d91@linux.spacemit.com/

diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c
index 7315fad618e44..52c81b18750e1 100644
--- a/drivers/mfd/simple-mfd-i2c.c
+++ b/drivers/mfd/simple-mfd-i2c.c
@@ -105,6 +105,7 @@ static const struct regmap_config spacemit_p1_regmap_config = {
 };
 
 static const struct mfd_cell spacemit_p1_cells[] = {
+	{ .name = "spacemit-p1-reboot", },
 	{ .name = "spacemit-p1-regulator", },
 	{ .name = "spacemit-p1-rtc", },
 };
-- 
2.51.0


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
