linux-kernel - [PATCH v4 4/5] regulator: rk808: Support apply_bit for rk808_set_suspend_voltage

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Date: Tue, 16 Apr 2024 18:12:36 +0200
From: Alex Bee <knaerzche@...il.com>
To: Lee Jones <lee@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Linus Walleij <linus.walleij@...aro.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Sebastian Reichel <sebastian.reichel@...labora.com>
Cc: Chris Zhong <zyw@...k-chips.com>,
	Zhang Qing <zhangqing@...k-chips.com>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	Alex Bee <knaerzche@...il.com>
Subject: [PATCH v4 4/5] regulator: rk808: Support apply_bit for rk808_set_suspend_voltage_range

rk808_set_suspend_voltage_range currently does not account the existence of
apply_bit/apply_reg.

This adds support for those in same way it is done in
regulator_set_voltage_sel_regmap and is required for the upcoming RK816
support

Signed-off-by: Alex Bee <knaerzche@...il.com>
---
changes since v1:
  - none

 drivers/regulator/rk808-regulator.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index d89ae7f16d7a..a6a563e402d0 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -534,15 +534,25 @@ static int rk808_set_suspend_voltage_range(struct regulator_dev *rdev, int uv)
 {
 	unsigned int reg;
 	int sel = regulator_map_voltage_linear_range(rdev, uv, uv);
+	int ret;
 
 	if (sel < 0)
 		return -EINVAL;
 
 	reg = rdev->desc->vsel_reg + RK808_SLP_REG_OFFSET;
 
-	return regmap_update_bits(rdev->regmap, reg,
-				  rdev->desc->vsel_mask,
-				  sel);
+	ret = regmap_update_bits(rdev->regmap, reg,
+				 rdev->desc->vsel_mask,
+				 sel);
+	if (ret)
+		return ret;
+
+	if (rdev->desc->apply_bit)
+		ret = regmap_update_bits(rdev->regmap, rdev->desc->apply_reg,
+					 rdev->desc->apply_bit,
+					 rdev->desc->apply_bit);
+
+	return ret;
 }
 
 static int rk805_set_suspend_enable(struct regulator_dev *rdev)
-- 
2.43.2