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Commit 29f9b6cf authored by Pawel Moll's avatar Pawel Moll
Browse files

mfd: syscon: Add platform data with a regmap config name 



Define syscon platform data structure that can be used
to define a regmap config name. This is particularly useful
in the regmap debugfs when there is more than one syscon
device registered, to distinguish the register blocks.

Signed-off-by: default avatarPawel Moll <pawel.moll@arm.com>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
parent 3b9334ac

drivers/mfd/syscon.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/of.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_address.h>

#include <linux/of_platform.h>

#include <linux/of_platform.h>

#include <linux/platform_data/syscon.h>

#include <linux/platform_device.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>

#include <linux/regmap.h>

#include <linux/mfd/syscon.h>

#include <linux/mfd/syscon.h>
@@ -119,6 +120,7 @@ static struct regmap_config syscon_regmap_config = { 
static int syscon_probe(struct platform_device *pdev)

static int syscon_probe(struct platform_device *pdev)

{

{

	struct device *dev = &pdev->dev;

	struct device *dev = &pdev->dev;

	struct syscon_platform_data *pdata = dev_get_platdata(dev);

	struct syscon *syscon;

	struct syscon *syscon;

	struct resource *res;

	struct resource *res;

	void __iomem *base;

	void __iomem *base;
@@ -136,6 +138,8 @@ static int syscon_probe(struct platform_device *pdev) 
		return -ENOMEM;

		return -ENOMEM;





	syscon_regmap_config.max_register = res->end - res->start - 3;

	syscon_regmap_config.max_register = res->end - res->start - 3;

	if (pdata)

		syscon_regmap_config.name = pdata->label;

	syscon->regmap = devm_regmap_init_mmio(dev, base,

	syscon->regmap = devm_regmap_init_mmio(dev, base,

					&syscon_regmap_config);

					&syscon_regmap_config);

	if (IS_ERR(syscon->regmap)) {

	if (IS_ERR(syscon->regmap)) {

include/linux/platform_data/syscon.h

0 → 100644
+8 −0
Original line number Original line Diff line number Diff line 
#ifndef PLATFORM_DATA_SYSCON_H

#define PLATFORM_DATA_SYSCON_H



struct syscon_platform_data {

	const char *label;

};



#endif