linux-kernel - [PATCH v2 1/5] mfd: axp20x: AXP717: Fix missing IRQ status registers range

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Date: Thu, 18 Apr 2024 01:07:32 +0100
From: Andre Przywara <andre.przywara@....com>
To: Chen-Yu Tsai <wens@...e.org>,
	Lee Jones <lee@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-sunxi@...ts.linux.dev,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	Ryan Walklin <ryan@...ttoast.com>,
	Chris Morgan <macroalpha82@...il.com>
Subject: [PATCH v2 1/5] mfd: axp20x: AXP717: Fix missing IRQ status registers range

While we list the "IRQ status *and acknowledge*" registers as volatile,
they are missing from the writable range array, so acknowledging any
interrupts was met with an -EIO error.

Add the five registers that hold those bits to the writable array.

Fixes: b5bfc8ab2484 ("mfd: axp20x: Add support for AXP717 PMIC")
Reported-by: Chris Morgan <macromorgan@...mail.com>
Signed-off-by: Andre Przywara <andre.przywara@....com>
---
 drivers/mfd/axp20x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index 48ce6ea693cea..d8ad4e120d379 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -210,6 +210,7 @@ static const struct regmap_access_table axp313a_volatile_table = {
 
 static const struct regmap_range axp717_writeable_ranges[] = {
 	regmap_reg_range(AXP717_IRQ0_EN, AXP717_IRQ4_EN),
+	regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE),
 	regmap_reg_range(AXP717_DCDC_OUTPUT_CONTROL, AXP717_CPUSLDO_CONTROL),
 };
 
-- 
2.35.8