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Tue, 17 Oct 2023 12:05:49 -0700 (PDT) Received: from ryzen9.fritz.box ([2a01:2a8:8f03:b001:fe65:a70:2777:ab31]) by smtp.gmail.com with ESMTPSA id bq14-20020a056402214e00b00537963f692esm1637990edb.0.2023.10.17.12.05.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Oct 2023 12:05:48 -0700 (PDT) From: =?utf-8?q?Bernhard_Rosenkr=C3=A4nzer?= To: daniel.lezcano@linaro.org, angelogioacchino.delregno@collabora.com, rafael@kernel.org, amitk@kernel.org, rui.zhang@intel.com, matthias.bgg@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, dunlap@infradead.org, e.xingchen@zte.com.cn, p.zabel@pengutronix.de Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, wenst@chromium.org, ames.lo@mediatek.com, rex-bc.chen@mediatek.com, nfraprado@collabora.com, abailon@baylibre.com, amergnat@baylibre.com, khilman@baylibre.com Subject: [PATCH v5 2/5] thermal/drivers/mediatek/lvts_thermal: Add suspend and resume Date: Tue, 17 Oct 2023 21:05:42 +0200 Message-ID: <20231017190545.157282-3-bero@baylibre.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231017190545.157282-1-bero@baylibre.com> References: <20231017190545.157282-1-bero@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231017_120553_503341_93969874 X-CRM114-Status: GOOD ( 14.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Balsam CHIHI Add suspend and resume support to LVTS driver. Signed-off-by: Balsam CHIHI [bero@baylibre.com: suspend/resume in noirq phase] Co-developed-by: Bernhard Rosenkränzer Signed-off-by: Bernhard Rosenkränzer Reviewed-by: Matthias Brugger Reviewed-by: Alexandre Mergnat Reviewed-by: AngeloGioacchino Del Regno --- drivers/thermal/mediatek/lvts_thermal.c | 37 +++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c index 877a0e5ac3fd3..c5a03bdf63e9d 100644 --- a/drivers/thermal/mediatek/lvts_thermal.c +++ b/drivers/thermal/mediatek/lvts_thermal.c @@ -1254,6 +1254,38 @@ static void lvts_remove(struct platform_device *pdev) lvts_debugfs_exit(lvts_td); } +static int lvts_suspend(struct device *dev) +{ + struct lvts_domain *lvts_td; + int i; + + lvts_td = dev_get_drvdata(dev); + + 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 device *dev) +{ + struct lvts_domain *lvts_td; + int i, ret; + + lvts_td = dev_get_drvdata(dev); + + 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 }, @@ -1350,12 +1382,17 @@ static const struct of_device_id lvts_of_match[] = { }; MODULE_DEVICE_TABLE(of, lvts_of_match); +static const struct dev_pm_ops lvts_pm_ops = { + NOIRQ_SYSTEM_SLEEP_PM_OPS(lvts_suspend, lvts_resume) +}; + static struct platform_driver lvts_driver = { .probe = lvts_probe, .remove_new = lvts_remove, .driver = { .name = "mtk-lvts-thermal", .of_match_table = lvts_of_match, + .pm = &lvts_pm_ops, }, }; module_platform_driver(lvts_driver);