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Date:   Thu,  2 Jul 2020 13:15:24 +1000
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Subject: [PATCH 3/4] regulator: da9211: Implement of_map_mode
From:   Anand K Mistry <amistry@google.com>
To:     linux-mediatek@lists.infradead.org
Cc:     hsinyi@chromium.org, drinkcat@chromium.org,
        Anand K Mistry <amistry@google.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Support Opensource <support.opensource@diasemi.com>,
        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>
---

 drivers/regulator/da9211-regulator.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index 1f9b75b41346..297b3aa7c753 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -86,6 +86,20 @@ static const int da9215_current_limits[] = {
 	5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000
 };
 
+static unsigned int da9211_map_buck_mode(unsigned int mode)
+{
+	switch (mode) {
+	case DA9211_BUCK_MODE_SLEEP:
+		return REGULATOR_MODE_STANDBY;
+	case DA9211_BUCK_MODE_SYNC:
+		return REGULATOR_MODE_FAST;
+	case DA9211_BUCK_MODE_AUTO:
+		return REGULATOR_MODE_NORMAL;
+	default:
+		return REGULATOR_MODE_INVALID;
+	}
+}
+
 static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
 {
 	int id = rdev_get_id(rdev);
@@ -233,6 +247,7 @@ static const struct regulator_ops da9211_buck_ops = {
 	.vsel_reg = DA9211_REG_VBUCKA_A + DA9211_ID_##_id * 2,\
 	.vsel_mask = DA9211_VBUCK_MASK,\
 	.owner = THIS_MODULE,\
+	.of_map_mode = da9211_map_buck_mode,\
 }
 
 static struct regulator_desc da9211_regulators[] = {
@@ -242,8 +257,14 @@ static struct regulator_desc da9211_regulators[] = {
 
 #ifdef CONFIG_OF
 static struct of_regulator_match da9211_matches[] = {
-	[DA9211_ID_BUCKA] = { .name = "BUCKA" },
-	[DA9211_ID_BUCKB] = { .name = "BUCKB" },
+	[DA9211_ID_BUCKA] = {
+		.name = "BUCKA",
+		.desc = &da9211_regulators[DA9211_ID_BUCKA],
+	},
+	[DA9211_ID_BUCKB] = {
+		.name = "BUCKB",
+		.desc = &da9211_regulators[DA9211_ID_BUCKB],
+	},
 	};
 
 static struct da9211_pdata *da9211_parse_regulators_dt(
-- 
2.27.0.212.ge8ba1cc988-goog