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From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Grant Likely <grant.likely@secretlab.ca>,
	David Brownell <david-b@pacbell.net>
Cc: benh@kernel.crashing.org, linux-kernel@vger.kernel.org,
	David Miller <davem@davemloft.net>
Subject: [PATCH 1/6] of/base: Add new helper of_should_create_pdev()
Date: Tue, 28 Oct 2008 20:46:11 +0300	[thread overview]
Message-ID: <20081028174611.GA25349@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <20081028174532.GA23834@oksana.dev.rtsoft.ru>

This is used to check list of devices for which we should create
a dedicated device.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
 drivers/of/base.c  |   27 +++++++++++++++++++++++++++
 include/linux/of.h |    1 +
 2 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 7c79e94..1baeee3 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -458,6 +458,33 @@ int of_modalias_node(struct device_node *node, char *modalias, int len)
 }
 EXPORT_SYMBOL_GPL(of_modalias_node);
 
+/*
+ * The list of device's compatible entries for which drivers require
+ * platform_data to be filled. For such cases we create OF platform
+ * devices.
+ */
+static const char *of_pdev_list[] = {
+};
+
+/**
+ * of_should_create_pdev - See if a node needs a full-fledged OF device
+ * @node:	pointer to a device tree node
+ *
+ * Based on the value of the compatible property, this routine will determine
+ * if a full-fledged device should be created for a node.
+ */
+bool of_should_create_pdev(struct device_node *node)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(of_pdev_list); i++) {
+		if (!of_device_is_compatible(node, of_pdev_list[i]))
+			return 1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(of_should_create_pdev);
+
 /**
  * of_parse_phandles_with_args - Find a node pointed by phandle in a list
  * @np:		pointer to a device tree node containing a list
diff --git a/include/linux/of.h b/include/linux/of.h
index e2488f5..d183533 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -71,6 +71,7 @@ extern int of_n_size_cells(struct device_node *np);
 extern const struct of_device_id *of_match_node(
 	const struct of_device_id *matches, const struct device_node *node);
 extern int of_modalias_node(struct device_node *node, char *modalias, int len);
+extern bool of_should_create_pdev(struct device_node *node);
 extern int of_parse_phandles_with_args(struct device_node *np,
 	const char *list_name, const char *cells_name, int index,
 	struct device_node **out_node, const void **out_args);
-- 
1.5.6.3


  reply	other threads:[~2008-10-28 17:46 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-16 17:12 [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Anton Vorontsov
2008-10-16 17:12 ` [PATCH 1/7] powerpc and sparc: introduce dev_archdata node accessors Anton Vorontsov
2008-10-16 22:36   ` David Miller
2008-10-16 23:02     ` Grant Likely
2008-10-16 17:12 ` [PATCH 2/7] i2c: add info->archdata field Anton Vorontsov
2008-10-17  9:21   ` Jean Delvare
2008-10-22  0:27     ` Benjamin Herrenschmidt
2008-10-22  6:50       ` Jean Delvare
2008-10-22  7:37         ` Benjamin Herrenschmidt
2008-10-22 10:08           ` Anton Vorontsov
2008-10-22 11:07             ` Jean Delvare
2008-10-22 12:50               ` Anton Vorontsov
2008-10-16 17:12 ` [PATCH 3/7] of: fill the archdata for I2C devices Anton Vorontsov
2008-10-22  4:14   ` Grant Likely
2008-10-16 17:12 ` [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:24   ` David Brownell
2008-10-17 21:29     ` Anton Vorontsov
2008-10-20  7:29       ` David Brownell
2008-10-20 15:48         ` Anton Vorontsov
2008-10-22  0:29           ` Benjamin Herrenschmidt
2008-10-22  1:03             ` Anton Vorontsov
2008-10-22  1:42               ` Anton Vorontsov
2008-10-22  2:28                 ` Benjamin Herrenschmidt
2008-10-22  4:20                   ` Grant Likely
2008-10-22  4:22                   ` David Brownell
2008-10-22 10:36                     ` Anton Vorontsov
2008-10-22 10:46                       ` Anton Vorontsov
2008-10-22 18:32                         ` Anton Vorontsov
2008-10-22 21:04                           ` David Brownell
2008-10-22 21:22                             ` Anton Vorontsov
2008-10-22 21:52                               ` David Brownell
2008-10-22 22:29                                 ` Anton Vorontsov
2008-10-23  5:19                                   ` David Brownell
2008-10-23  4:45                             ` Benjamin Herrenschmidt
2008-10-23  6:06                               ` David Brownell
2008-10-23  6:15                           ` David Brownell
2008-10-28 17:45                         ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: " Anton Vorontsov
2008-10-28 17:46                           ` Anton Vorontsov [this message]
2008-10-28 17:46                           ` [PATCH 2/6] of/of_i2c: implement of_{,un}register_i2c_device Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 3/6] of/of_i2c: add support for dedicated OF I2C devices Anton Vorontsov
2008-10-28 18:41                             ` David Miller
2008-10-28 17:46                           ` [PATCH 4/6] of/gpio: add support for two-stage registration for the of_gpio_chips Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 5/6] gpio/pca953x: pass gpio_chip pointer to the setup/teardown callbacks Anton Vorontsov
2008-10-28 17:46                           ` [PATCH 6/6] gpio: OpenFirmware bindings for the pca953x Anton Vorontsov
2008-10-28 17:53                           ` [PATCH 0/6 RFC] OF-glue devices for I2C/SPI (was: Re: [PATCH 4/7] gpiolib: implement dev_gpiochip_{add,remove} calls Grant Likely
2008-10-22  2:27               ` Benjamin Herrenschmidt
2008-10-16 17:13 ` [PATCH 5/7] of/gpio: implement of_dev_gpiochip_{add,remove} calls Anton Vorontsov
2008-10-17 20:25   ` David Brownell
2008-10-17 21:13     ` Anton Vorontsov
2008-10-16 17:13 ` [PATCH 6/7] gpio/pca953x: convert to dev_gpiochip_add and make it work with the OF Anton Vorontsov
2008-10-16 17:13 ` [PATCH 7/7] i2c/mcu_mpc8349emitx: convert to the new I2C/OF/GPIO infrastructure Anton Vorontsov
2008-10-17 16:07 ` [PATCH 0/7 RFC] Handle I2C GPIO controllers with the OF (was: pca9539 I2C gpio expander) Steven A. Falco

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