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Date:   Thu,  2 Jul 2020 16:23:19 +1000
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Subject: [PATCH v2 3/4] regulator: mt6397: Implement of_map_mode
From:   Anand K Mistry <amistry@google.com>
To:     linux-mediatek@lists.infradead.org
Cc:     hsin-hsiung.wang@mediatek.com, drinkcat@chromium.org,
        Anand K Mistry <amistry@google.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Implementing of_map_mode is necessary to be able to specify operating
modes in the devicetree using 'regulator-allowed-modes', and to change
regulator modes.

Signed-off-by: Anand K Mistry <amistry@google.com>
---

Changes in v2: None

 drivers/regulator/mt6397-regulator.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/regulator/mt6397-regulator.c b/drivers/regulator/mt6397-regulator.c
index d51e98ce1138..0a30df5e414f 100644
--- a/drivers/regulator/mt6397-regulator.c
+++ b/drivers/regulator/mt6397-regulator.c
@@ -53,6 +53,7 @@ struct mt6397_regulator_info {
 		.vsel_mask = vosel_mask,				\
 		.enable_reg = enreg,					\
 		.enable_mask = BIT(0),					\
+		.of_map_mode = mt6397_map_mode,				\
 	},								\
 	.qi = BIT(13),							\
 	.vselon_reg = voselon,						\
@@ -144,6 +145,18 @@ static const unsigned int ldo_volt_table7[] = {
 	1300000, 1500000, 1800000, 2000000, 2500000, 2800000, 3000000, 3300000,
 };
 
+static unsigned int mt6397_map_mode(unsigned int mode)
+{
+	switch (mode) {
+	case MT6397_BUCK_MODE_AUTO:
+		return REGULATOR_MODE_NORMAL;
+	case MT6397_BUCK_MODE_FORCE_PWM:
+		return REGULATOR_MODE_FAST;
+	default:
+		return REGULATOR_MODE_INVALID;
+	}
+}
+
 static int mt6397_regulator_set_mode(struct regulator_dev *rdev,
 				     unsigned int mode)
 {
-- 
2.27.0.212.ge8ba1cc988-goog