Return-path: Received: from mga11.intel.com ([192.55.52.93]:30902 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753962AbdFSKJQ (ORCPT ); Mon, 19 Jun 2017 06:09:16 -0400 From: Andy Shevchenko To: Samuel Ortiz , linux-wireless@vger.kernel.org, linux-nfc@lists.01.org Cc: Andy Shevchenko Subject: [PATCH v3 11/13] NFC: st-nci: Add GPIO ACPI mapping table Date: Mon, 19 Jun 2017 13:08:56 +0300 Message-Id: <20170619100858.2655-12-andriy.shevchenko@linux.intel.com> (sfid-20170619_120920_957623_A2D2133C) In-Reply-To: <20170619100858.2655-1-andriy.shevchenko@linux.intel.com> References: <20170619100858.2655-1-andriy.shevchenko@linux.intel.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: In order to make GPIO ACPI library stricter prepare users of gpiod_get_index() to correctly behave when there no mapping is provided by firmware. Here we add explicit mapping between _CRS GpioIo() resources and their names used in the driver. Signed-off-by: Andy Shevchenko --- drivers/nfc/st-nci/i2c.c | 17 +++++++++++++---- drivers/nfc/st-nci/spi.c | 17 +++++++++++++---- 2 files changed, 26 insertions(+), 8 deletions(-) diff --git a/drivers/nfc/st-nci/i2c.c b/drivers/nfc/st-nci/i2c.c index 2ee381586f14..edda253b07fe 100644 --- a/drivers/nfc/st-nci/i2c.c +++ b/drivers/nfc/st-nci/i2c.c @@ -40,8 +40,6 @@ #define ST_NCI_DRIVER_NAME "st_nci" #define ST_NCI_I2C_DRIVER_NAME "st_nci_i2c" -#define ST_NCI_GPIO_NAME_RESET "reset" - struct st_nci_i2c_phy { struct i2c_client *i2c_dev; struct llt_ndlc *ndlc; @@ -205,14 +203,25 @@ static struct nfc_phy_ops i2c_phy_ops = { .disable = st_nci_i2c_disable, }; +static const struct acpi_gpio_params reset_gpios = { 1, 0, false }; + +static const struct acpi_gpio_mapping acpi_st_nci_gpios[] = { + { "reset-gpios", &reset_gpios, 1 }, + {}, +}; + static int st_nci_i2c_acpi_request_resources(struct i2c_client *client) { struct st_nci_i2c_phy *phy = i2c_get_clientdata(client); struct device *dev = &client->dev; + int r; + + r = devm_acpi_dev_add_driver_gpios(dev, acpi_st_nci_gpios); + if (r) + return r; /* Get RESET GPIO from ACPI */ - phy->gpiod_reset = devm_gpiod_get_index(dev, ST_NCI_GPIO_NAME_RESET, - 1, GPIOD_OUT_HIGH); + phy->gpiod_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(phy->gpiod_reset)) { nfc_err(dev, "Unable to get RESET GPIO\n"); return -ENODEV; diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c index 383bf69163ef..99ecf92edc8c 100644 --- a/drivers/nfc/st-nci/spi.c +++ b/drivers/nfc/st-nci/spi.c @@ -41,8 +41,6 @@ #define ST_NCI_DRIVER_NAME "st_nci" #define ST_NCI_SPI_DRIVER_NAME "st_nci_spi" -#define ST_NCI_GPIO_NAME_RESET "reset" - struct st_nci_spi_phy { struct spi_device *spi_dev; struct llt_ndlc *ndlc; @@ -220,14 +218,25 @@ static struct nfc_phy_ops spi_phy_ops = { .disable = st_nci_spi_disable, }; +static const struct acpi_gpio_params reset_gpios = { 1, 0, false }; + +static const struct acpi_gpio_mapping acpi_st_nci_gpios[] = { + { "reset-gpios", &reset_gpios, 1 }, + {}, +}; + static int st_nci_spi_acpi_request_resources(struct spi_device *spi_dev) { struct st_nci_spi_phy *phy = spi_get_drvdata(spi_dev); struct device *dev = &spi_dev->dev; + int r; + + r = devm_acpi_dev_add_driver_gpios(dev, acpi_st_nci_gpios); + if (r) + return r; /* Get RESET GPIO from ACPI */ - phy->gpiod_reset = devm_gpiod_get_index(dev, ST_NCI_GPIO_NAME_RESET, - 1, GPIOD_OUT_HIGH); + phy->gpiod_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(phy->gpiod_reset)) { nfc_err(dev, "Unable to get RESET GPIO\n"); return PTR_ERR(phy->gpiod_reset); -- 2.11.0