Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751372Ab3HSWBk (ORCPT ); Mon, 19 Aug 2013 18:01:40 -0400 Received: from mail-oa0-f47.google.com ([209.85.219.47]:52881 "EHLO mail-oa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751137Ab3HSWBe (ORCPT ); Mon, 19 Aug 2013 18:01:34 -0400 Message-ID: <521295B9.8000607@gmail.com> Date: Mon, 19 Aug 2013 17:01:29 -0500 From: Rob Herring User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: Wolfram Sang CC: linux-i2c@vger.kernel.org, linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, davinci-linux-open-source@linux.davincidsp.com, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH RESEND] i2c: move of helpers into the core References: <1376918361-7014-1-git-send-email-wsa@the-dreams.de> <1376935183-11218-1-git-send-email-wsa@the-dreams.de> In-Reply-To: <1376935183-11218-1-git-send-email-wsa@the-dreams.de> X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 35225 Lines: 1085 On 08/19/2013 12:59 PM, Wolfram Sang wrote: > I2C of helpers used to live in of_i2c.c but experience (from SPI) shows > that it is much cleaner to have this in the core. This also removes a > circular dependency between the helpers and the core, and so we can > finally register child nodes in the core instead of doing this manually > in each driver. So, fix the drivers and documentation, too. > > Signed-off-by: Wolfram Sang > --- Glad to see this. Acked-by: Rob Herring > > Sigh, hitting the CC threshold on vger again. So resending to the lists only. > BTW this patch is based on -rc4 and was tested on an AT91 board. More tests > very welcome. Thanks! > > > Documentation/acpi/enumeration.txt | 1 - > drivers/i2c/busses/i2c-at91.c | 3 - > drivers/i2c/busses/i2c-cpm.c | 6 -- > drivers/i2c/busses/i2c-davinci.c | 2 - > drivers/i2c/busses/i2c-designware-platdrv.c | 2 - > drivers/i2c/busses/i2c-gpio.c | 3 - > drivers/i2c/busses/i2c-i801.c | 2 - > drivers/i2c/busses/i2c-ibm_iic.c | 4 - > drivers/i2c/busses/i2c-imx.c | 3 - > drivers/i2c/busses/i2c-mpc.c | 2 - > drivers/i2c/busses/i2c-mv64xxx.c | 3 - > drivers/i2c/busses/i2c-mxs.c | 3 - > drivers/i2c/busses/i2c-nomadik.c | 3 - > drivers/i2c/busses/i2c-ocores.c | 3 - > drivers/i2c/busses/i2c-octeon.c | 3 - > drivers/i2c/busses/i2c-omap.c | 3 - > drivers/i2c/busses/i2c-pnx.c | 3 - > drivers/i2c/busses/i2c-powermac.c | 9 +- > drivers/i2c/busses/i2c-pxa.c | 2 - > drivers/i2c/busses/i2c-s3c2410.c | 2 - > drivers/i2c/busses/i2c-sh_mobile.c | 2 - > drivers/i2c/busses/i2c-sirf.c | 3 - > drivers/i2c/busses/i2c-stu300.c | 2 - > drivers/i2c/busses/i2c-tegra.c | 3 - > drivers/i2c/busses/i2c-versatile.c | 2 - > drivers/i2c/busses/i2c-wmt.c | 3 - > drivers/i2c/busses/i2c-xiic.c | 3 - > drivers/i2c/i2c-core.c | 107 ++++++++++++++++++++- > drivers/i2c/i2c-mux.c | 3 - > drivers/i2c/muxes/i2c-arb-gpio-challenge.c | 1 - > drivers/i2c/muxes/i2c-mux-gpio.c | 1 - > drivers/i2c/muxes/i2c-mux-pinctrl.c | 1 - > drivers/media/platform/exynos4-is/fimc-is-i2c.c | 3 - > drivers/of/Kconfig | 6 -- > drivers/of/Makefile | 1 - > drivers/of/of_i2c.c | 114 ----------------------- > include/linux/i2c.h | 20 ++++ > include/linux/of_i2c.h | 46 --------- > 38 files changed, 130 insertions(+), 253 deletions(-) > delete mode 100644 drivers/of/of_i2c.c > delete mode 100644 include/linux/of_i2c.h > > diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt > index d9be7a9..958266e 100644 > --- a/Documentation/acpi/enumeration.txt > +++ b/Documentation/acpi/enumeration.txt > @@ -238,7 +238,6 @@ An I2C bus (controller) driver does: > if (ret) > /* handle error */ > > - of_i2c_register_devices(adapter); > /* Enumerate the slave devices behind this bus via ACPI */ > acpi_i2c_register_devices(adapter); > > diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c > index 6bb839b..fd05930 100644 > --- a/drivers/i2c/busses/i2c-at91.c > +++ b/drivers/i2c/busses/i2c-at91.c > @@ -28,7 +28,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -775,8 +774,6 @@ static int at91_twi_probe(struct platform_device *pdev) > return rc; > } > > - of_i2c_register_devices(&dev->adapter); > - > dev_info(dev->dev, "AT91 i2c bus driver.\n"); > return 0; > } > diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c > index 2e1f7eb..b2b8aa9 100644 > --- a/drivers/i2c/busses/i2c-cpm.c > +++ b/drivers/i2c/busses/i2c-cpm.c > @@ -42,7 +42,6 @@ > #include > #include > #include > -#include > #include > #include > > @@ -681,11 +680,6 @@ static int cpm_i2c_probe(struct platform_device *ofdev) > dev_dbg(&ofdev->dev, "hw routines for %s registered.\n", > cpm->adap.name); > > - /* > - * register OF I2C devices > - */ > - of_i2c_register_devices(&cpm->adap); > - > return 0; > out_shut: > cpm_i2c_shutdown(cpm); > diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c > index fa55605..62be3b3 100644 > --- a/drivers/i2c/busses/i2c-davinci.c > +++ b/drivers/i2c/busses/i2c-davinci.c > @@ -38,7 +38,6 @@ > #include > #include > #include > -#include > #include > > #include > @@ -728,7 +727,6 @@ static int davinci_i2c_probe(struct platform_device *pdev) > dev_err(&pdev->dev, "failure adding adapter\n"); > goto err_unuse_clocks; > } > - of_i2c_register_devices(adap); > > return 0; > > diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c > index 4c5fada..27ea436 100644 > --- a/drivers/i2c/busses/i2c-designware-platdrv.c > +++ b/drivers/i2c/busses/i2c-designware-platdrv.c > @@ -35,7 +35,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -172,7 +171,6 @@ static int dw_i2c_probe(struct platform_device *pdev) > dev_err(&pdev->dev, "failure adding adapter\n"); > return r; > } > - of_i2c_register_devices(adap); > acpi_i2c_register_devices(adap); > > pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); > diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c > index bc6e139..e5da9fe 100644 > --- a/drivers/i2c/busses/i2c-gpio.c > +++ b/drivers/i2c/busses/i2c-gpio.c > @@ -16,7 +16,6 @@ > #include > #include > #include > -#include > > struct i2c_gpio_private_data { > struct i2c_adapter adap; > @@ -224,8 +223,6 @@ static int i2c_gpio_probe(struct platform_device *pdev) > if (ret) > goto err_add_bus; > > - of_i2c_register_devices(adap); > - > platform_set_drvdata(pdev, priv); > > dev_info(&pdev->dev, "using pins %u (SDA) and %u (SCL%s)\n", > diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c > index 4ebceed..4296d17 100644 > --- a/drivers/i2c/busses/i2c-i801.c > +++ b/drivers/i2c/busses/i2c-i801.c > @@ -87,7 +87,6 @@ > #include > #include > #include > -#include > > #if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \ > defined CONFIG_DMI > @@ -1230,7 +1229,6 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) > goto exit_free_irq; > } > > - of_i2c_register_devices(&priv->adapter); > i801_probe_optional_slaves(priv); > /* We ignore errors - multiplexing is optional */ > i801_add_mux(priv); > diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c > index 973f516..ff3caa0 100644 > --- a/drivers/i2c/busses/i2c-ibm_iic.c > +++ b/drivers/i2c/busses/i2c-ibm_iic.c > @@ -42,7 +42,6 @@ > #include > #include > #include > -#include > > #include "i2c-ibm_iic.h" > > @@ -759,9 +758,6 @@ static int iic_probe(struct platform_device *ofdev) > dev_info(&ofdev->dev, "using %s mode\n", > dev->fast_mode ? "fast (400 kHz)" : "standard (100 kHz)"); > > - /* Now register all the child nodes */ > - of_i2c_register_devices(adap); > - > return 0; > > error_cleanup: > diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c > index e242797..bbbea6b 100644 > --- a/drivers/i2c/busses/i2c-imx.c > +++ b/drivers/i2c/busses/i2c-imx.c > @@ -50,7 +50,6 @@ > #include > #include > #include > -#include > #include > > /** Defines ******************************************************************** > @@ -570,8 +569,6 @@ static int __init i2c_imx_probe(struct platform_device *pdev) > return ret; > } > > - of_i2c_register_devices(&i2c_imx->adapter); > - > /* Set up platform driver data */ > platform_set_drvdata(pdev, i2c_imx); > > diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c > index 7607dc0..9f2513d 100644 > --- a/drivers/i2c/busses/i2c-mpc.c > +++ b/drivers/i2c/busses/i2c-mpc.c > @@ -18,7 +18,6 @@ > #include > #include > #include > -#include > #include > > #include > @@ -691,7 +690,6 @@ static int fsl_i2c_probe(struct platform_device *op) > dev_err(i2c->dev, "failed to add adapter\n"); > goto fail_add; > } > - of_i2c_register_devices(&i2c->adap); > > return result; > > diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c > index b1f42bf..8220322 100644 > --- a/drivers/i2c/busses/i2c-mv64xxx.c > +++ b/drivers/i2c/busses/i2c-mv64xxx.c > @@ -21,7 +21,6 @@ > #include > #include > #include > -#include > #include > #include > > @@ -689,8 +688,6 @@ mv64xxx_i2c_probe(struct platform_device *pd) > goto exit_free_irq; > } > > - of_i2c_register_devices(&drv_data->adapter); > - > return 0; > > exit_free_irq: > diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c > index df8ff5a..62ed07d 100644 > --- a/drivers/i2c/busses/i2c-mxs.c > +++ b/drivers/i2c/busses/i2c-mxs.c > @@ -27,7 +27,6 @@ > #include > #include > #include > -#include > #include > #include > > @@ -701,8 +700,6 @@ static int mxs_i2c_probe(struct platform_device *pdev) > return err; > } > > - of_i2c_register_devices(adap); > - > return 0; > } > > diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c > index 512dfe6..519df17 100644 > --- a/drivers/i2c/busses/i2c-nomadik.c > +++ b/drivers/i2c/busses/i2c-nomadik.c > @@ -24,7 +24,6 @@ > #include > #include > #include > -#include > #include > > #define DRIVER_NAME "nmk-i2c" > @@ -1045,8 +1044,6 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id) > goto err_add_adap; > } > > - of_i2c_register_devices(adap); > - > pm_runtime_put(&adev->dev); > > return 0; > diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c > index 0e1f824..0a52b78 100644 > --- a/drivers/i2c/busses/i2c-ocores.c > +++ b/drivers/i2c/busses/i2c-ocores.c > @@ -24,7 +24,6 @@ > #include > #include > #include > -#include > #include > > struct ocores_i2c { > @@ -435,8 +434,6 @@ static int ocores_i2c_probe(struct platform_device *pdev) > if (pdata) { > for (i = 0; i < pdata->num_devices; i++) > i2c_new_device(&i2c->adap, pdata->devices + i); > - } else { > - of_i2c_register_devices(&i2c->adap); > } > > return 0; > diff --git a/drivers/i2c/busses/i2c-octeon.c b/drivers/i2c/busses/i2c-octeon.c > index 956fe32..b929ba2 100644 > --- a/drivers/i2c/busses/i2c-octeon.c > +++ b/drivers/i2c/busses/i2c-octeon.c > @@ -15,7 +15,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -599,8 +598,6 @@ static int octeon_i2c_probe(struct platform_device *pdev) > } > dev_info(i2c->dev, "version %s\n", DRV_VERSION); > > - of_i2c_register_devices(&i2c->adap); > - > return 0; > > out: > diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c > index 142b694d..a9f0f80 100644 > --- a/drivers/i2c/busses/i2c-omap.c > +++ b/drivers/i2c/busses/i2c-omap.c > @@ -38,7 +38,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -1245,8 +1244,6 @@ omap_i2c_probe(struct platform_device *pdev) > dev_info(dev->dev, "bus %d rev%d.%d at %d kHz\n", adap->nr, > major, minor, dev->speed); > > - of_i2c_register_devices(adap); > - > pm_runtime_mark_last_busy(dev->dev); > pm_runtime_put_autosuspend(dev->dev); > > diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c > index 5f39c6d..7b57d67 100644 > --- a/drivers/i2c/busses/i2c-pnx.c > +++ b/drivers/i2c/busses/i2c-pnx.c > @@ -23,7 +23,6 @@ > #include > #include > #include > -#include > > #define I2C_PNX_TIMEOUT_DEFAULT 10 /* msec */ > #define I2C_PNX_SPEED_KHZ_DEFAULT 100 > @@ -741,8 +740,6 @@ static int i2c_pnx_probe(struct platform_device *pdev) > goto out_irq; > } > > - of_i2c_register_devices(&alg_data->adapter); > - > dev_dbg(&pdev->dev, "%s: Master at %#8x, irq %d.\n", > alg_data->adapter.name, res->start, alg_data->irq); > > diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c > index bb81773..25f25d2 100644 > --- a/drivers/i2c/busses/i2c-powermac.c > +++ b/drivers/i2c/busses/i2c-powermac.c > @@ -440,7 +440,9 @@ static int i2c_powermac_probe(struct platform_device *dev) > adapter->algo = &i2c_powermac_algorithm; > i2c_set_adapdata(adapter, bus); > adapter->dev.parent = &dev->dev; > - adapter->dev.of_node = dev->dev.of_node; > + > + /* Clear of_node to skip automatic registration of i2c child nodes */ > + adapter->dev.of_node = NULL; > rc = i2c_add_adapter(adapter); > if (rc) { > printk(KERN_ERR "i2c-powermac: Adapter %s registration " > @@ -451,9 +453,8 @@ static int i2c_powermac_probe(struct platform_device *dev) > > printk(KERN_INFO "PowerMac i2c bus %s registered\n", adapter->name); > > - /* Cannot use of_i2c_register_devices() due to Apple device-tree > - * funkyness > - */ > + /* Use custom child registration due to Apple device-tree funkyness */ > + adapter->dev.of_node = dev->dev.of_node; > i2c_powermac_register_devices(adapter, bus); > > return 0; > diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c > index fbafed2..bc65014 100644 > --- a/drivers/i2c/busses/i2c-pxa.c > +++ b/drivers/i2c/busses/i2c-pxa.c > @@ -31,7 +31,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -1185,7 +1184,6 @@ static int i2c_pxa_probe(struct platform_device *dev) > printk(KERN_INFO "I2C: Failed to add bus\n"); > goto eadapt; > } > - of_i2c_register_devices(&i2c->adap); > > platform_set_drvdata(dev, i2c); > > diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c > index cab1c91..643426e 100644 > --- a/drivers/i2c/busses/i2c-s3c2410.c > +++ b/drivers/i2c/busses/i2c-s3c2410.c > @@ -36,7 +36,6 @@ > #include > #include > #include > -#include > #include > #include > > @@ -1154,7 +1153,6 @@ static int s3c24xx_i2c_probe(struct platform_device *pdev) > return ret; > } > > - of_i2c_register_devices(&i2c->adap); > platform_set_drvdata(pdev, i2c); > > pm_runtime_enable(&pdev->dev); > diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c > index debf745..aa1268f 100644 > --- a/drivers/i2c/busses/i2c-sh_mobile.c > +++ b/drivers/i2c/busses/i2c-sh_mobile.c > @@ -27,7 +27,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -758,7 +757,6 @@ static int sh_mobile_i2c_probe(struct platform_device *dev) > "I2C adapter %d with bus speed %lu Hz (L/H=%x/%x)\n", > adap->nr, pd->bus_speed, pd->iccl, pd->icch); > > - of_i2c_register_devices(adap); > return 0; > > err_all: > diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c > index a63c7d5..0ff22e2 100644 > --- a/drivers/i2c/busses/i2c-sirf.c > +++ b/drivers/i2c/busses/i2c-sirf.c > @@ -12,7 +12,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -366,8 +365,6 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev) > > clk_disable(clk); > > - of_i2c_register_devices(adap); > - > dev_info(&pdev->dev, " I2C adapter ready to operate\n"); > > return 0; > diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c > index d1a6b20..047546c 100644 > --- a/drivers/i2c/busses/i2c-stu300.c > +++ b/drivers/i2c/busses/i2c-stu300.c > @@ -17,7 +17,6 @@ > #include > #include > #include > -#include > > /* the name of this kernel module */ > #define NAME "stu300" > @@ -936,7 +935,6 @@ stu300_probe(struct platform_device *pdev) > platform_set_drvdata(pdev, dev); > dev_info(&pdev->dev, "ST DDC I2C @ %p, irq %d\n", > dev->virtbase, dev->irq); > - of_i2c_register_devices(adap); > > return 0; > } > diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c > index 9aa1b60..c457cb4 100644 > --- a/drivers/i2c/busses/i2c-tegra.c > +++ b/drivers/i2c/busses/i2c-tegra.c > @@ -25,7 +25,6 @@ > #include > #include > #include > -#include > #include > #include > #include > @@ -802,8 +801,6 @@ static int tegra_i2c_probe(struct platform_device *pdev) > return ret; > } > > - of_i2c_register_devices(&i2c_dev->adapter); > - > return 0; > } > > diff --git a/drivers/i2c/busses/i2c-versatile.c b/drivers/i2c/busses/i2c-versatile.c > index f3a8790..6bb3a89 100644 > --- a/drivers/i2c/busses/i2c-versatile.c > +++ b/drivers/i2c/busses/i2c-versatile.c > @@ -16,7 +16,6 @@ > #include > #include > #include > -#include > > #define I2C_CONTROL 0x00 > #define I2C_CONTROLS 0x00 > @@ -108,7 +107,6 @@ static int i2c_versatile_probe(struct platform_device *dev) > ret = i2c_bit_add_numbered_bus(&i2c->adap); > if (ret >= 0) { > platform_set_drvdata(dev, i2c); > - of_i2c_register_devices(&i2c->adap); > return 0; > } > > diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c > index baaa7d1..c65da3d 100644 > --- a/drivers/i2c/busses/i2c-wmt.c > +++ b/drivers/i2c/busses/i2c-wmt.c > @@ -21,7 +21,6 @@ > #include > #include > #include > -#include > #include > #include > > @@ -439,8 +438,6 @@ static int wmt_i2c_probe(struct platform_device *pdev) > > platform_set_drvdata(pdev, i2c_dev); > > - of_i2c_register_devices(adap); > - > return 0; > } > > diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c > index 3d0f052..8823db7 100644 > --- a/drivers/i2c/busses/i2c-xiic.c > +++ b/drivers/i2c/busses/i2c-xiic.c > @@ -40,7 +40,6 @@ > #include > #include > #include > -#include > > #define DRIVER_NAME "xiic-i2c" > > @@ -752,8 +751,6 @@ static int xiic_i2c_probe(struct platform_device *pdev) > i2c_new_device(&i2c->adap, pdata->devices + i); > } > > - of_i2c_register_devices(&i2c->adap); > - > return 0; > > add_adapter_failed: > diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c > index f32ca29..321b7ca 100644 > --- a/drivers/i2c/i2c-core.c > +++ b/drivers/i2c/i2c-core.c > @@ -23,7 +23,11 @@ > SMBus 2.0 support by Mark Studebaker and > Jean Delvare > Mux support by Rodolfo Giometti and > - Michael Lawnick */ > + Michael Lawnick > + OF support is copyright (c) 2008 Jochen Friedrich > + (based on a previous patch from Jon Smirl ) and > + (c) 2013 Wolfram Sang > + */ > > #include > #include > @@ -35,7 +39,9 @@ > #include > #include > #include > +#include > #include > +#include > #include > #include > #include > @@ -954,6 +960,102 @@ static void i2c_scan_static_board_info(struct i2c_adapter *adapter) > up_read(&__i2c_board_lock); > } > > +/* of support code */ > + > +#if IS_ENABLED(CONFIG_OF) > +static void of_i2c_register_devices(struct i2c_adapter *adap) > +{ > + void *result; > + struct device_node *node; > + > + /* Only register child devices if the adapter has a node pointer set */ > + if (!adap->dev.of_node) > + return; > + > + dev_dbg(&adap->dev, "of_i2c: walking child nodes\n"); > + > + for_each_available_child_of_node(adap->dev.of_node, node) { > + struct i2c_board_info info = {}; > + struct dev_archdata dev_ad = {}; > + const __be32 *addr; > + int len; > + > + dev_dbg(&adap->dev, "of_i2c: register %s\n", node->full_name); > + > + if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) { > + dev_err(&adap->dev, "of_i2c: modalias failure on %s\n", > + node->full_name); > + continue; > + } > + > + addr = of_get_property(node, "reg", &len); > + if (!addr || (len < sizeof(int))) { > + dev_err(&adap->dev, "of_i2c: invalid reg on %s\n", > + node->full_name); > + continue; > + } > + > + info.addr = be32_to_cpup(addr); > + if (info.addr > (1 << 10) - 1) { > + dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n", > + info.addr, node->full_name); > + continue; > + } > + > + info.irq = irq_of_parse_and_map(node, 0); > + info.of_node = of_node_get(node); > + info.archdata = &dev_ad; > + > + if (of_get_property(node, "wakeup-source", NULL)) > + info.flags |= I2C_CLIENT_WAKE; > + > + request_module("%s%s", I2C_MODULE_PREFIX, info.type); > + > + result = i2c_new_device(adap, &info); > + if (result == NULL) { > + dev_err(&adap->dev, "of_i2c: Failure registering %s\n", > + node->full_name); > + of_node_put(node); > + irq_dispose_mapping(info.irq); > + continue; > + } > + } > +} > + > +static int of_dev_node_match(struct device *dev, void *data) > +{ > + return dev->of_node == data; > +} > + > +/* must call put_device() when done with returned i2c_client device */ > +struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) > +{ > + struct device *dev; > + > + dev = bus_find_device(&i2c_bus_type, NULL, node, > + of_dev_node_match); > + if (!dev) > + return NULL; > + > + return i2c_verify_client(dev); > +} > +EXPORT_SYMBOL(of_find_i2c_adapter_by_node); > + > +/* must call put_device() when done with returned i2c_adapter device */ > +struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) > +{ > + struct device *dev; > + > + dev = bus_find_device(&i2c_bus_type, NULL, node, > + of_dev_node_match); > + if (!dev) > + return NULL; > + > + return i2c_verify_adapter(dev); > +} > +EXPORT_SYMBOL(of_find_i2c_device_by_node); > +#endif /* CONFIG_OF */ > + > static int i2c_do_add_adapter(struct i2c_driver *driver, > struct i2c_adapter *adap) > { > @@ -1058,6 +1160,8 @@ static int i2c_register_adapter(struct i2c_adapter *adap) > > exit_recovery: > /* create pre-declared device nodes */ > + of_i2c_register_devices(adap); > + > if (adap->nr < __i2c_first_dynamic_bus_num) > i2c_scan_static_board_info(adap); > > @@ -1282,7 +1386,6 @@ void i2c_del_adapter(struct i2c_adapter *adap) > } > EXPORT_SYMBOL(i2c_del_adapter); > > - > /* ------------------------------------------------------------------------- */ > > int i2c_for_each_dev(void *data, int (*fn)(struct device *, void *)) > diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c > index 7409ebb..797e311 100644 > --- a/drivers/i2c/i2c-mux.c > +++ b/drivers/i2c/i2c-mux.c > @@ -25,7 +25,6 @@ > #include > #include > #include > -#include > > /* multiplexer per channel data */ > struct i2c_mux_priv { > @@ -185,8 +184,6 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent, > dev_info(&parent->dev, "Added multiplexed i2c bus %d\n", > i2c_adapter_id(&priv->adap)); > > - of_i2c_register_devices(&priv->adap); > - > return &priv->adap; > } > EXPORT_SYMBOL_GPL(i2c_add_mux_adapter); > diff --git a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c > index 210b6f7..b901638 100644 > --- a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c > +++ b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c > @@ -21,7 +21,6 @@ > #include > #include > #include > -#include > #include > #include > #include > diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c > index 5a0ce00..128a981 100644 > --- a/drivers/i2c/muxes/i2c-mux-gpio.c > +++ b/drivers/i2c/muxes/i2c-mux-gpio.c > @@ -16,7 +16,6 @@ > #include > #include > #include > -#include > #include > > struct gpiomux { > diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c > index a43c0ce..859a6d2 100644 > --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c > +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c > @@ -20,7 +20,6 @@ > #include > #include > #include > -#include > #include > #include > #include > diff --git a/drivers/media/platform/exynos4-is/fimc-is-i2c.c b/drivers/media/platform/exynos4-is/fimc-is-i2c.c > index 617a798..c283186 100644 > --- a/drivers/media/platform/exynos4-is/fimc-is-i2c.c > +++ b/drivers/media/platform/exynos4-is/fimc-is-i2c.c > @@ -12,7 +12,6 @@ > > #include > #include > -#include > #include > #include > #include > @@ -67,8 +66,6 @@ static int fimc_is_i2c_probe(struct platform_device *pdev) > pm_runtime_enable(&pdev->dev); > pm_runtime_enable(&i2c_adap->dev); > > - of_i2c_register_devices(i2c_adap); > - > return 0; > } > > diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig > index 80e5c13..78cc760 100644 > --- a/drivers/of/Kconfig > +++ b/drivers/of/Kconfig > @@ -48,12 +48,6 @@ config OF_IRQ > def_bool y > depends on !SPARC > > -config OF_I2C > - def_tristate I2C > - depends on I2C > - help > - OpenFirmware I2C accessors > - > config OF_NET > depends on NETDEVICES > def_bool y > diff --git a/drivers/of/Makefile b/drivers/of/Makefile > index 1f9c0c4..efd0510 100644 > --- a/drivers/of/Makefile > +++ b/drivers/of/Makefile > @@ -3,7 +3,6 @@ obj-$(CONFIG_OF_FLATTREE) += fdt.o > obj-$(CONFIG_OF_PROMTREE) += pdt.o > obj-$(CONFIG_OF_ADDRESS) += address.o > obj-$(CONFIG_OF_IRQ) += irq.o > -obj-$(CONFIG_OF_I2C) += of_i2c.o > obj-$(CONFIG_OF_NET) += of_net.o > obj-$(CONFIG_OF_SELFTEST) += selftest.o > obj-$(CONFIG_OF_MDIO) += of_mdio.o > diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c > deleted file mode 100644 > index b667264..0000000 > --- a/drivers/of/of_i2c.c > +++ /dev/null > @@ -1,114 +0,0 @@ > -/* > - * OF helpers for the I2C API > - * > - * Copyright (c) 2008 Jochen Friedrich > - * > - * Based on a previous patch from Jon Smirl > - * > - * This program is free software; you can redistribute it and/or modify > - * it under the terms of the GNU General Public License as published by > - * the Free Software Foundation; either version 2 of the License, or > - * (at your option) any later version. > - */ > - > -#include > -#include > -#include > -#include > -#include > -#include > - > -void of_i2c_register_devices(struct i2c_adapter *adap) > -{ > - void *result; > - struct device_node *node; > - > - /* Only register child devices if the adapter has a node pointer set */ > - if (!adap->dev.of_node) > - return; > - > - dev_dbg(&adap->dev, "of_i2c: walking child nodes\n"); > - > - for_each_available_child_of_node(adap->dev.of_node, node) { > - struct i2c_board_info info = {}; > - struct dev_archdata dev_ad = {}; > - const __be32 *addr; > - int len; > - > - dev_dbg(&adap->dev, "of_i2c: register %s\n", node->full_name); > - > - if (of_modalias_node(node, info.type, sizeof(info.type)) < 0) { > - dev_err(&adap->dev, "of_i2c: modalias failure on %s\n", > - node->full_name); > - continue; > - } > - > - addr = of_get_property(node, "reg", &len); > - if (!addr || (len < sizeof(int))) { > - dev_err(&adap->dev, "of_i2c: invalid reg on %s\n", > - node->full_name); > - continue; > - } > - > - info.addr = be32_to_cpup(addr); > - if (info.addr > (1 << 10) - 1) { > - dev_err(&adap->dev, "of_i2c: invalid addr=%x on %s\n", > - info.addr, node->full_name); > - continue; > - } > - > - info.irq = irq_of_parse_and_map(node, 0); > - info.of_node = of_node_get(node); > - info.archdata = &dev_ad; > - > - if (of_get_property(node, "wakeup-source", NULL)) > - info.flags |= I2C_CLIENT_WAKE; > - > - request_module("%s%s", I2C_MODULE_PREFIX, info.type); > - > - result = i2c_new_device(adap, &info); > - if (result == NULL) { > - dev_err(&adap->dev, "of_i2c: Failure registering %s\n", > - node->full_name); > - of_node_put(node); > - irq_dispose_mapping(info.irq); > - continue; > - } > - } > -} > -EXPORT_SYMBOL(of_i2c_register_devices); > - > -static int of_dev_node_match(struct device *dev, void *data) > -{ > - return dev->of_node == data; > -} > - > -/* must call put_device() when done with returned i2c_client device */ > -struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) > -{ > - struct device *dev; > - > - dev = bus_find_device(&i2c_bus_type, NULL, node, > - of_dev_node_match); > - if (!dev) > - return NULL; > - > - return i2c_verify_client(dev); > -} > -EXPORT_SYMBOL(of_find_i2c_device_by_node); > - > -/* must call put_device() when done with returned i2c_adapter device */ > -struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) > -{ > - struct device *dev; > - > - dev = bus_find_device(&i2c_bus_type, NULL, node, > - of_dev_node_match); > - if (!dev) > - return NULL; > - > - return i2c_verify_adapter(dev); > -} > -EXPORT_SYMBOL(of_find_i2c_adapter_by_node); > - > -MODULE_LICENSE("GPL"); > diff --git a/include/linux/i2c.h b/include/linux/i2c.h > index e988fa9..2189189 100644 > --- a/include/linux/i2c.h > +++ b/include/linux/i2c.h > @@ -542,6 +542,26 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap) > > #endif /* I2C */ > > +#if IS_ENABLED(CONFIG_OF) > +/* must call put_device() when done with returned i2c_client device */ > +extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); > + > +/* must call put_device() when done with returned i2c_adapter device */ > +extern struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node); > + > +#else > + > +static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) > +{ > + return NULL; > +} > + > +static inline struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) > +{ > + return NULL; > +} > +#endif /* CONFIG_OF */ > + > #if IS_ENABLED(CONFIG_ACPI_I2C) > extern void acpi_i2c_register_devices(struct i2c_adapter *adap); > #else > diff --git a/include/linux/of_i2c.h b/include/linux/of_i2c.h > deleted file mode 100644 > index cfb545c..0000000 > --- a/include/linux/of_i2c.h > +++ /dev/null > @@ -1,46 +0,0 @@ > -/* > - * Generic I2C API implementation for PowerPC. > - * > - * Copyright (c) 2008 Jochen Friedrich > - * > - * This program is free software; you can redistribute it and/or modify > - * it under the terms of the GNU General Public License as published by > - * the Free Software Foundation; either version 2 of the License, or > - * (at your option) any later version. > - */ > - > -#ifndef __LINUX_OF_I2C_H > -#define __LINUX_OF_I2C_H > - > -#if defined(CONFIG_OF_I2C) || defined(CONFIG_OF_I2C_MODULE) > -#include > - > -extern void of_i2c_register_devices(struct i2c_adapter *adap); > - > -/* must call put_device() when done with returned i2c_client device */ > -extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); > - > -/* must call put_device() when done with returned i2c_adapter device */ > -extern struct i2c_adapter *of_find_i2c_adapter_by_node( > - struct device_node *node); > - > -#else > -static inline void of_i2c_register_devices(struct i2c_adapter *adap) > -{ > - return; > -} > - > -static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) > -{ > - return NULL; > -} > - > -/* must call put_device() when done with returned i2c_adapter device */ > -static inline struct i2c_adapter *of_find_i2c_adapter_by_node( > - struct device_node *node) > -{ > - return NULL; > -} > -#endif /* CONFIG_OF_I2C */ > - > -#endif /* __LINUX_OF_I2C_H */ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/