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[24.56.189.219]) by smtp.gmail.com with ESMTPSA id z30-20020a056602081e00b0068b1858c81asm6165821iow.13.2022.08.30.16.16.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Aug 2022 16:16:11 -0700 (PDT) From: Raul E Rangel To: linux-acpi@vger.kernel.org, linux-input@vger.kernel.org Cc: hdegoede@redhat.com, mario.limonciello@amd.com, timvp@google.com, rafael@kernel.org, Raul E Rangel , Dmitry Torokhov , "jingle.wu" , linux-kernel@vger.kernel.org Subject: [PATCH 1/8] Input: elan_i2c - Use PM subsystem to manage wake irq Date: Tue, 30 Aug 2022 17:15:34 -0600 Message-Id: <20220830171332.1.Id022caf53d01112188308520915798f08a33cd3e@changeid> X-Mailer: git-send-email 2.37.2.672.g94769d06f0-goog In-Reply-To: <20220830231541.1135813-1-rrangel@chromium.org> References: <20220830231541.1135813-1-rrangel@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org The Elan I2C touchpad driver is currently manually managing the wake IRQ. This change removes the explicit enable_irq_wake/disable_irq_wake and instead relies on the PM subsystem. This is done by calling dev_pm_set_wake_irq. i2c_device_probe already calls dev_pm_set_wake_irq when using device tree, so it's only required when using ACPI. The net result is that this change should be a no-op. i2c_device_remove also already calls dev_pm_clear_wake_irq, so we don't need to do that in this driver. I tested this on an ACPI system where the touchpad doesn't have _PRW defined. I verified I can still wake the system and that the wake source was the touchpad IRQ GPIO. Signed-off-by: Raul E Rangel Acked-by: Rafael J. Wysocki Acked-by: Dmitry Torokhov Reviewed-by: Tony Lindgren --- drivers/input/mouse/elan_i2c_core.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c index e1758d5ffe4218..7d997d2b56436b 100644 --- a/drivers/input/mouse/elan_i2c_core.c +++ b/drivers/input/mouse/elan_i2c_core.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include #include @@ -86,8 +87,6 @@ struct elan_tp_data { u16 fw_page_size; u32 fw_signature_address; - bool irq_wake; - u8 min_baseline; u8 max_baseline; bool baseline_ready; @@ -1337,8 +1336,10 @@ static int elan_probe(struct i2c_client *client, * Systems using device tree should set up wakeup via DTS, * the rest will configure device as wakeup source by default. */ - if (!dev->of_node) + if (!dev->of_node) { device_init_wakeup(dev, true); + dev_pm_set_wake_irq(dev, client->irq); + } return 0; } @@ -1362,8 +1363,6 @@ static int __maybe_unused elan_suspend(struct device *dev) if (device_may_wakeup(dev)) { ret = elan_sleep(data); - /* Enable wake from IRQ */ - data->irq_wake = (enable_irq_wake(client->irq) == 0); } else { ret = elan_set_power(data, false); if (ret) @@ -1394,9 +1393,6 @@ static int __maybe_unused elan_resume(struct device *dev) dev_err(dev, "error %d enabling regulator\n", error); goto err; } - } else if (data->irq_wake) { - disable_irq_wake(client->irq); - data->irq_wake = false; } error = elan_set_power(data, true);