From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Subject: [PATCH 6/7] sony-laptop: use .notify method instead of installing handler directly Date: Tue, 07 Apr 2009 09:37:32 -0600 Message-ID: <20090407153732.21399.29566.stgit@bob.kio> References: <20090407153532.21399.92051.stgit@bob.kio> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from g4t0015.houston.hp.com ([15.201.24.18]:39583 "EHLO g4t0015.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755593AbZDGPhc (ORCPT ); Tue, 7 Apr 2009 11:37:32 -0400 In-Reply-To: <20090407153532.21399.92051.stgit@bob.kio> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown Cc: Tony Vroon , Mattia Dongili , Carlos Corbacho , Harald Welte , Jonathan Woithe , linux-acpi@vger.kernel.org, Zhang Rui This patch adds a .notify() method. The presence of .notify() causes Linux/ACPI to manage event handlers and notify handlers on our behalf, so we don't have to install and remove them ourselves. Signed-off-by: Bjorn Helgaas CC: Mattia Dongili --- drivers/platform/x86/sony-laptop.c | 30 ++++-------------------------- 1 files changed, 4 insertions(+), 26 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index a90ec5c..d3c92d7 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -914,7 +914,7 @@ static struct sony_nc_event sony_127_events[] = { /* * ACPI callbacks */ -static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) +static void sony_nc_notify(struct acpi_device *device, u32 event) { u32 ev = event; @@ -933,7 +933,7 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) struct sony_nc_event *key_event; if (sony_call_snc_handle(key_handle, 0x200, &result)) { - dprintk("sony_acpi_notify, unable to decode" + dprintk("sony_nc_notify, unable to decode" " event 0x%.2x 0x%.2x\n", key_handle, ev); /* restore the original event */ @@ -968,7 +968,7 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) } else sony_laptop_report_input_event(ev); - dprintk("sony_acpi_notify, event: 0x%.2x\n", ev); + dprintk("sony_nc_notify, event: 0x%.2x\n", ev); acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev); } @@ -1276,15 +1276,6 @@ static int sony_nc_add(struct acpi_device *device) goto outwalk; } - status = acpi_install_notify_handler(sony_nc_acpi_handle, - ACPI_DEVICE_NOTIFY, - sony_acpi_notify, NULL); - if (ACPI_FAILURE(status)) { - printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status); - result = -ENODEV; - goto outinput; - } - if (acpi_video_backlight_support()) { printk(KERN_INFO DRV_PFX "brightness ignored, must be " "controlled by ACPI video driver\n"); @@ -1362,13 +1353,6 @@ static int sony_nc_add(struct acpi_device *device) if (sony_backlight_device) backlight_device_unregister(sony_backlight_device); - status = acpi_remove_notify_handler(sony_nc_acpi_handle, - ACPI_DEVICE_NOTIFY, - sony_acpi_notify); - if (ACPI_FAILURE(status)) - printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); - - outinput: sony_laptop_remove_input(); outwalk: @@ -1378,7 +1362,6 @@ static int sony_nc_add(struct acpi_device *device) static int sony_nc_remove(struct acpi_device *device, int type) { - acpi_status status; struct sony_nc_value *item; if (sony_backlight_device) @@ -1386,12 +1369,6 @@ static int sony_nc_remove(struct acpi_device *device, int type) sony_nc_acpi_device = NULL; - status = acpi_remove_notify_handler(sony_nc_acpi_handle, - ACPI_DEVICE_NOTIFY, - sony_acpi_notify); - if (ACPI_FAILURE(status)) - printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n"); - for (item = sony_nc_values; item->name; ++item) { device_remove_file(&sony_pf_device->dev, &item->devattr); } @@ -1425,6 +1402,7 @@ static struct acpi_driver sony_nc_driver = { .add = sony_nc_add, .remove = sony_nc_remove, .resume = sony_nc_resume, + .notify = sony_nc_notify, }, };