Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934190AbcKWInd (ORCPT ); Wed, 23 Nov 2016 03:43:33 -0500 Received: from mail-pg0-f53.google.com ([74.125.83.53]:33779 "EHLO mail-pg0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933548AbcKWIn2 (ORCPT ); Wed, 23 Nov 2016 03:43:28 -0500 From: tnhuynh@apm.com To: Richard Purdie , Jacek Anaszewski , linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Loc Ho , Thang Nguyen , Phong Vo , patches@apm.com, Tin Huynh Subject: [PATCH V1] leds: pca955x: Add ACPI support for pca955x Date: Wed, 23 Nov 2016 15:42:26 +0700 Message-Id: <1479890546-22644-1-git-send-email-tnhuynh@apm.com> X-Mailer: git-send-email 1.7.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1906 Lines: 69 From: Tin Huynh This patch enables ACPI support for leds-pca955x driver. Signed-off-by: Tin Huynh --- drivers/leds/leds-pca955x.c | 26 +++++++++++++++++++++++++- 1 files changed, 25 insertions(+), 1 deletions(-) diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index 840401a..8770090 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -40,6 +40,7 @@ * bits the chip supports. */ +#include #include #include #include @@ -100,6 +101,17 @@ struct pca955x_chipdef { }; MODULE_DEVICE_TABLE(i2c, pca955x_id); +#ifdef CONFIG_ACPI +static const struct acpi_device_id pca955x_acpi_ids[] = { + { .id = "PCA9550", .driver_data = pca9550 }, + { .id = "PCA9551", .driver_data = pca9551 }, + { .id = "PCA9552", .driver_data = pca9552 }, + { .id = "PCA9553", .driver_data = pca9553 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, pca955x_acpi_ids); +#endif + struct pca955x { struct mutex lock; struct pca955x_led *leds; @@ -250,7 +262,18 @@ static int pca955x_probe(struct i2c_client *client, struct led_platform_data *pdata; int i, err; - chip = &pca955x_chipdefs[id->driver_data]; + if (id) + chip = &pca955x_chipdefs[id->driver_data]; +#ifdef CONFIG_ACPI + else { + const struct acpi_device_id *acpi_id; + + acpi_id = acpi_match_device(pca955x_acpi_ids, &client->dev); + if (!acpi_id) + return -ENODEV; + chip = &pca955x_chipdefs[acpi_id->driver_data]; + } +#endif adapter = to_i2c_adapter(client->dev.parent); pdata = dev_get_platdata(&client->dev); @@ -358,6 +381,7 @@ static int pca955x_remove(struct i2c_client *client) static struct i2c_driver pca955x_driver = { .driver = { .name = "leds-pca955x", + .acpi_match_table = ACPI_PTR(pca955x_acpi_ids), }, .probe = pca955x_probe, .remove = pca955x_remove, -- 1.7.1