Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755369AbcK2Dqy (ORCPT ); Mon, 28 Nov 2016 22:46:54 -0500 Received: from mail-pg0-f43.google.com ([74.125.83.43]:35274 "EHLO mail-pg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752577AbcK2Dqm (ORCPT ); Mon, 28 Nov 2016 22:46:42 -0500 From: tnhuynh@apm.com To: Wolfram Sang , Peter Rosin Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, Loc Ho , Thang Nguyen , Phong Vo , patches@apm.com, Tin Huynh Subject: [PATCH V3] i2c: mux: pca954x: Add ACPI support for pca954x Date: Tue, 29 Nov 2016 10:46:29 +0700 Message-Id: <1480391189-1775-1-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: 2356 Lines: 79 From: Tin Huynh This patch enables ACPI support for mux-pca954x driver. Signed-off-by: Tin Huynh --- drivers/i2c/muxes/i2c-mux-pca954x.c | 25 ++++++++++++++++++++++++- 1 files changed, 24 insertions(+), 1 deletions(-) Change from V2: -Remove CONFIG_ACPI. Change from V1: -Don't shadow id variable. -Include sorted header. -Redefine acpi_device_id. -Add CONFIG_ACPI. diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c index 1091346..f80191e 100644 --- a/drivers/i2c/muxes/i2c-mux-pca954x.c +++ b/drivers/i2c/muxes/i2c-mux-pca954x.c @@ -35,6 +35,7 @@ * warranty of any kind, whether express or implied. */ +#include #include #include #include @@ -120,6 +121,19 @@ struct pca954x { }; MODULE_DEVICE_TABLE(i2c, pca954x_id); +static const struct acpi_device_id pca954x_acpi_ids[] = { + { .id = "PCA9540", .driver_data = pca_9540 }, + { .id = "PCA9542", .driver_data = pca_9540 }, + { .id = "PCA9543", .driver_data = pca_9543 }, + { .id = "PCA9544", .driver_data = pca_9544 }, + { .id = "PCA9545", .driver_data = pca_9545 }, + { .id = "PCA9546", .driver_data = pca_9545 }, + { .id = "PCA9547", .driver_data = pca_9547 }, + { .id = "PCA9548", .driver_data = pca_9548 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, pca954x_acpi_ids); + #ifdef CONFIG_OF static const struct of_device_id pca954x_of_match[] = { { .compatible = "nxp,pca9540", .data = &chips[pca_9540] }, @@ -245,8 +259,16 @@ static int pca954x_probe(struct i2c_client *client, match = of_match_device(of_match_ptr(pca954x_of_match), &client->dev); if (match) data->chip = of_device_get_match_data(&client->dev); - else + else if (id) data->chip = &chips[id->driver_data]; + else { + const struct acpi_device_id *acpi_id; + + acpi_id = acpi_match_device(pca954x_acpi_ids, &client->dev); + if (!acpi_id) + return -ENODEV; + data->chip = &chips[acpi_id->driver_data]; + } data->last_chan = 0; /* force the first selection */ @@ -321,6 +343,7 @@ static int pca954x_resume(struct device *dev) .name = "pca954x", .pm = &pca954x_pm, .of_match_table = of_match_ptr(pca954x_of_match), + .acpi_match_table = ACPI_PTR(pca954x_acpi_ids), }, .probe = pca954x_probe, .remove = pca954x_remove, -- 1.7.1