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Commit 01f0e78e authored by Dale Farnsworth's avatar Dale Farnsworth Committed by Paul Mackerras
Browse files

[POWERPC] Create Marvell mv64x60 I2C platform_data 



This patch creates platform_device entries for the Marvell mv64x60
I2C ports, based on information contained in device tree.

This driver (like the other mv64x60 drivers) are unusual in that it
works on both the MIPS and PowerPC architectures.  Because of that,
the drivers do not support the normal PowerPC of_platform_bus_type.
They support platform_bus_type instead.

Signed-off-by: default avatarDale Farnsworth <dale@farnsworth.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 649c8e02

arch/powerpc/sysdev/mv64x60_dev.c

+72 −0
Original line number Diff line number Diff line
@@ -323,6 +323,72 @@ error: 
	return err;

}



/*

 * Create mv64x60_i2c platform devices

 */

static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)

{

	struct resource r[2];

	struct platform_device *pdev;

	struct mv64xxx_i2c_pdata pdata;

	const unsigned int *prop;

	int err;



	memset(r, 0, sizeof(r));



	err = of_address_to_resource(np, 0, &r[0]);

	if (err)

		return err;



	of_irq_to_resource(np, 0, &r[1]);



	memset(&pdata, 0, sizeof(pdata));



	prop = of_get_property(np, "freq_m", NULL);

	if (!prop)

		return -ENODEV;

	pdata.freq_m = *prop;



	prop = of_get_property(np, "freq_n", NULL);

	if (!prop)

		return -ENODEV;

	pdata.freq_n = *prop;



	prop = of_get_property(np, "timeout", NULL);

	if (prop)

		pdata.timeout = *prop;

	else

		pdata.timeout = 1000;	/* 1 second */



	prop = of_get_property(np, "retries", NULL);

	if (prop)

		pdata.retries = *prop;

	else

		pdata.retries = 1;



	pdev = platform_device_alloc(MV64XXX_I2C_CTLR_NAME, id);

	if (!pdev)

		return -ENOMEM;



	err = platform_device_add_resources(pdev, r, 2);

	if (err)

		goto error;



	err = platform_device_add_data(pdev, &pdata, sizeof(pdata));

	if (err)

		goto error;



	err = platform_device_add(pdev);

	if (err)

		goto error;



	return 0;



error:

	platform_device_put(pdev);

	return err;

}



static int __init mv64x60_device_setup(void)

{

	struct device_node *np = NULL;
@@ -341,6 +407,12 @@ static int __init mv64x60_device_setup(void) 
		if ((err = mv64x60_eth_device_setup(np, id)))

			goto error;



	for (id = 0;

	     (np = of_find_compatible_node(np, "i2c", "marvell,mv64x60-i2c"));

	     id++)

		if ((err = mv64x60_i2c_device_setup(np, id)))

			goto error;



	return 0;



error: