From 5efc5476184173996dfcce780c2bb5e727df674e Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 22 Jun 2009 20:41:30 +0000 Subject: ACPI: EC: move acpi_ec_start() after acpi_ec_add() This patch rearranges ec_install_handlers() and acpi_ec_start() so acpi_ec_start() ends up just after acpi_ec_add(). A subsequent patch will merge them. Code movement only; no functional change. Signed-off-by: Bjorn Helgaas CC: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 112 +++++++++++++++++++++++++++--------------------------- 1 file changed, 56 insertions(+), 56 deletions(-) (limited to 'drivers/acpi/ec.c') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 391f331674c7..8b387a48e843 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -788,6 +788,42 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval) return AE_CTRL_TERMINATE; } +static int ec_install_handlers(struct acpi_ec *ec) +{ + acpi_status status; + if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) + return 0; + status = acpi_install_gpe_handler(NULL, ec->gpe, + ACPI_GPE_EDGE_TRIGGERED, + &acpi_ec_gpe_handler, ec); + if (ACPI_FAILURE(status)) + return -ENODEV; + acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); + acpi_enable_gpe(NULL, ec->gpe); + status = acpi_install_address_space_handler(ec->handle, + ACPI_ADR_SPACE_EC, + &acpi_ec_space_handler, + NULL, ec); + if (ACPI_FAILURE(status)) { + if (status == AE_NOT_FOUND) { + /* + * Maybe OS fails in evaluating the _REG object. + * The AE_NOT_FOUND error will be ignored and OS + * continue to initialize EC. + */ + printk(KERN_ERR "Fail in evaluating the _REG object" + " of EC device. Broken bios is suspected.\n"); + } else { + acpi_remove_gpe_handler(NULL, ec->gpe, + &acpi_ec_gpe_handler); + return -ENODEV; + } + } + + set_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags); + return 0; +} + static void ec_remove_handlers(struct acpi_ec *ec) { if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, @@ -842,6 +878,26 @@ static int acpi_ec_add(struct acpi_device *device) return 0; } +static int acpi_ec_start(struct acpi_device *device) +{ + struct acpi_ec *ec; + int ret = 0; + + if (!device) + return -EINVAL; + + ec = acpi_driver_data(device); + + if (!ec) + return -EINVAL; + + ret = ec_install_handlers(ec); + + /* EC is fully operational, allow queries */ + clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); + return ret; +} + static int acpi_ec_remove(struct acpi_device *device, int type) { struct acpi_ec *ec; @@ -888,62 +944,6 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context) return AE_OK; } -static int ec_install_handlers(struct acpi_ec *ec) -{ - acpi_status status; - if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) - return 0; - status = acpi_install_gpe_handler(NULL, ec->gpe, - ACPI_GPE_EDGE_TRIGGERED, - &acpi_ec_gpe_handler, ec); - if (ACPI_FAILURE(status)) - return -ENODEV; - acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); - acpi_enable_gpe(NULL, ec->gpe); - status = acpi_install_address_space_handler(ec->handle, - ACPI_ADR_SPACE_EC, - &acpi_ec_space_handler, - NULL, ec); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - /* - * Maybe OS fails in evaluating the _REG object. - * The AE_NOT_FOUND error will be ignored and OS - * continue to initialize EC. - */ - printk(KERN_ERR "Fail in evaluating the _REG object" - " of EC device. Broken bios is suspected.\n"); - } else { - acpi_remove_gpe_handler(NULL, ec->gpe, - &acpi_ec_gpe_handler); - return -ENODEV; - } - } - - set_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags); - return 0; -} - -static int acpi_ec_start(struct acpi_device *device) -{ - struct acpi_ec *ec; - int ret = 0; - - if (!device) - return -EINVAL; - - ec = acpi_driver_data(device); - - if (!ec) - return -EINVAL; - - ret = ec_install_handlers(ec); - - /* EC is fully operational, allow queries */ - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - return ret; -} - static int acpi_ec_stop(struct acpi_device *device, int type) { struct acpi_ec *ec; -- cgit v1.2.3 From d02be04707b8ff5375a76c027327e8708877da39 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 22 Jun 2009 20:41:35 +0000 Subject: ACPI: EC: remove .start() method This patch folds the .start() method into .add(). acpi_ec_start() is always called immediately after acpi_ec_add(), so there's no need to have it be a separate method. Signed-off-by: Bjorn Helgaas Reviewed-by: Alex Chiang CC: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) (limited to 'drivers/acpi/ec.c') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8b387a48e843..1feedcea2d40 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -838,9 +838,8 @@ static void ec_remove_handlers(struct acpi_ec *ec) static int acpi_ec_add(struct acpi_device *device) { struct acpi_ec *ec = NULL; + int ret; - if (!device) - return -EINVAL; strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_EC_CLASS); @@ -875,21 +874,6 @@ static int acpi_ec_add(struct acpi_device *device) ec->gpe, ec->command_addr, ec->data_addr); pr_info(PREFIX "driver started in %s mode\n", (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll"); - return 0; -} - -static int acpi_ec_start(struct acpi_device *device) -{ - struct acpi_ec *ec; - int ret = 0; - - if (!device) - return -EINVAL; - - ec = acpi_driver_data(device); - - if (!ec) - return -EINVAL; ret = ec_install_handlers(ec); @@ -1077,7 +1061,6 @@ static struct acpi_driver acpi_ec_driver = { .ops = { .add = acpi_ec_add, .remove = acpi_ec_remove, - .start = acpi_ec_start, .stop = acpi_ec_stop, .suspend = acpi_ec_suspend, .resume = acpi_ec_resume, -- cgit v1.2.3 From cf745ec7a1222a661b2c5f0e8c2c4be81300d2a4 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Mon, 22 Jun 2009 20:41:40 +0000 Subject: ACPI: EC: remove .stop() method This patch folds the .stop() method into .remove(). acpi_ec_stop() is only called via acpi_device_probe() and acpi_device_remove(), and in both cases it is called immediately before acpi_ec_remove(), so there's no need to have it be a separate method. Signed-off-by: Bjorn Helgaas Reviewed-by: Alex Chiang CC: Alexey Starikovskiy Signed-off-by: Len Brown --- drivers/acpi/ec.c | 15 +-------------- 1 file changed, 1 insertion(+), 14 deletions(-) (limited to 'drivers/acpi/ec.c') diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 1feedcea2d40..d6bf0578737b 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -891,6 +891,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type) return -EINVAL; ec = acpi_driver_data(device); + ec_remove_handlers(ec); mutex_lock(&ec->lock); list_for_each_entry_safe(handler, tmp, &ec->list, node) { list_del(&handler->node); @@ -928,19 +929,6 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context) return AE_OK; } -static int acpi_ec_stop(struct acpi_device *device, int type) -{ - struct acpi_ec *ec; - if (!device) - return -EINVAL; - ec = acpi_driver_data(device); - if (!ec) - return -EINVAL; - ec_remove_handlers(ec); - - return 0; -} - int __init acpi_boot_ec_enable(void) { if (!boot_ec || test_bit(EC_FLAGS_HANDLERS_INSTALLED, &boot_ec->flags)) @@ -1061,7 +1049,6 @@ static struct acpi_driver acpi_ec_driver = { .ops = { .add = acpi_ec_add, .remove = acpi_ec_remove, - .stop = acpi_ec_stop, .suspend = acpi_ec_suspend, .resume = acpi_ec_resume, }, -- cgit v1.2.3