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Message-ID: <20230529164605.3552619-3-bero@baylibre.com>
Date: Mon, 29 May 2023 18:46:02 +0200
From: Bernhard Rosenkränzer <bero@...libre.com>
To: daniel.lezcano@...aro.org, angelogioacchino.delregno@...labora.com,
rafael@...nel.org, amitk@...nel.org, rui.zhang@...el.com,
matthias.bgg@...il.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, rdunlap@...radead.org,
ye.xingchen@....com.cn, p.zabel@...gutronix.de
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
wenst@...omium.org, james.lo@...iatek.com,
rex-bc.chen@...iatek.com, nfraprado@...labora.com,
abailon@...libre.com, amergnat@...libre.com, khilman@...libre.com
Subject: [PATCH v3 2/5] thermal/drivers/mediatek/lvts_thermal: Add suspend and resume
From: Balsam CHIHI <bchihi@...libre.com>
Add suspend and resume support to LVTS driver.
Signed-off-by: Balsam CHIHI <bchihi@...libre.com>
Signed-off-by: Bernhard Rosenkränzer <bero@...libre.com>
---
drivers/thermal/mediatek/lvts_thermal.c | 34 +++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index d0a3f95b7884b..5ea8a9d569ea6 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -1169,6 +1169,38 @@ static int lvts_remove(struct platform_device *pdev)
return 0;
}
+static int lvts_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct lvts_domain *lvts_td;
+ int i;
+
+ lvts_td = platform_get_drvdata(pdev);
+
+ for (i = 0; i < lvts_td->num_lvts_ctrl; i++)
+ lvts_ctrl_set_enable(&lvts_td->lvts_ctrl[i], false);
+
+ clk_disable_unprepare(lvts_td->clk);
+
+ return 0;
+}
+
+static int lvts_resume(struct platform_device *pdev)
+{
+ struct lvts_domain *lvts_td;
+ int i, ret;
+
+ lvts_td = platform_get_drvdata(pdev);
+
+ ret = clk_prepare_enable(lvts_td->clk);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < lvts_td->num_lvts_ctrl; i++)
+ lvts_ctrl_set_enable(&lvts_td->lvts_ctrl[i], true);
+
+ return 0;
+}
+
static const struct lvts_ctrl_data mt8195_lvts_mcu_data_ctrl[] = {
{
.cal_offset = { 0x04, 0x07 },
@@ -1268,6 +1300,8 @@ MODULE_DEVICE_TABLE(of, lvts_of_match);
static struct platform_driver lvts_driver = {
.probe = lvts_probe,
.remove = lvts_remove,
+ .suspend = lvts_suspend,
+ .resume = lvts_resume,
.driver = {
.name = "mtk-lvts-thermal",
.of_match_table = lvts_of_match,
--
2.41.0.rc2
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