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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-11-15 10:49:30 +0200
committerLee Jones <lee.jones@linaro.org>2020-01-24 07:33:56 +0000
commitf2a19c5b78670af5986ab0a625631f8f8a6adac1 (patch)
treee712cb54de64b77f82b098f947be60b69efd8996 /drivers/mfd
parent18490cdb9e321a62a9c2cac6fb506843cbc84926 (diff)
downloadlinux-f2a19c5b78670af5986ab0a625631f8f8a6adac1.tar.bz2
mfd: syscon: Re-use resource_size() to count max_register
Instead of open coded variant use resource_size() and replace weird '- 3' to more understandable '- 4'. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/syscon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index e22197c832e8..13626bb2d432 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -245,7 +245,7 @@ static int syscon_probe(struct platform_device *pdev)
if (!base)
return -ENOMEM;
- syscon_config.max_register = res->end - res->start - 3;
+ syscon_config.max_register = resource_size(res) - 4;
if (pdata)
syscon_config.name = pdata->label;
syscon->regmap = devm_regmap_init_mmio(dev, base, &syscon_config);