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: Pawel Moll <pawel.moll@arm.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index dbea55d..e2a04bb 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -18,6 +18,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
+#include <linux/platform_data/syscon.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
@@ -119,6 +120,7 @@
static int syscon_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
+ struct syscon_platform_data *pdata = dev_get_platdata(dev);
struct syscon *syscon;
struct resource *res;
void __iomem *base;
@@ -136,6 +138,8 @@
return -ENOMEM;
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_config);
if (IS_ERR(syscon->regmap)) {