84 lines
2.3 KiB
Diff
84 lines
2.3 KiB
Diff
From a1d874ef3376295ee8ed89b3b5315f4c840ff00b Mon Sep 17 00:00:00 2001
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From: Balsam CHIHI <bchihi@baylibre.com>
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Date: Tue, 17 Oct 2023 21:05:42 +0200
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Subject: [PATCH 40/42] thermal/drivers/mediatek/lvts_thermal: Add suspend and
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resume
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Add suspend and resume support to LVTS driver.
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Signed-off-by: Balsam CHIHI <bchihi@baylibre.com>
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[bero@baylibre.com: suspend/resume in noirq phase]
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Co-developed-by: Bernhard Rosenkränzer <bero@baylibre.com>
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Signed-off-by: Bernhard Rosenkränzer <bero@baylibre.com>
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Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
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Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
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Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Link: https://lore.kernel.org/r/20231017190545.157282-3-bero@baylibre.com
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---
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drivers/thermal/mediatek/lvts_thermal.c | 37 +++++++++++++++++++++++++
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1 file changed, 37 insertions(+)
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--- a/drivers/thermal/mediatek/lvts_thermal.c
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+++ b/drivers/thermal/mediatek/lvts_thermal.c
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@@ -1299,6 +1299,38 @@ static const struct lvts_ctrl_data mt798
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}
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};
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+static int lvts_suspend(struct device *dev)
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+{
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+ struct lvts_domain *lvts_td;
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+ int i;
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+
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+ lvts_td = dev_get_drvdata(dev);
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+
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+ for (i = 0; i < lvts_td->num_lvts_ctrl; i++)
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+ lvts_ctrl_set_enable(&lvts_td->lvts_ctrl[i], false);
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+
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+ clk_disable_unprepare(lvts_td->clk);
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+
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+ return 0;
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+}
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+
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+static int lvts_resume(struct device *dev)
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+{
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+ struct lvts_domain *lvts_td;
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+ int i, ret;
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+
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+ lvts_td = dev_get_drvdata(dev);
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+
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+ ret = clk_prepare_enable(lvts_td->clk);
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+ if (ret)
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+ return ret;
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+
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+ for (i = 0; i < lvts_td->num_lvts_ctrl; i++)
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+ lvts_ctrl_set_enable(&lvts_td->lvts_ctrl[i], true);
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+
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+ return 0;
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+}
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+
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static const struct lvts_ctrl_data mt8195_lvts_mcu_data_ctrl[] = {
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{
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.cal_offset = { 0x04, 0x07 },
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@@ -1407,12 +1439,17 @@ static const struct of_device_id lvts_of
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};
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MODULE_DEVICE_TABLE(of, lvts_of_match);
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+static const struct dev_pm_ops lvts_pm_ops = {
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+ NOIRQ_SYSTEM_SLEEP_PM_OPS(lvts_suspend, lvts_resume)
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+};
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+
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static struct platform_driver lvts_driver = {
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.probe = lvts_probe,
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.remove_new = lvts_remove,
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.driver = {
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.name = "mtk-lvts-thermal",
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.of_match_table = lvts_of_match,
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+ .pm = &lvts_pm_ops,
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},
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};
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module_platform_driver(lvts_driver);
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