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soc/tegra: fuse: Unmap registers once they are not needed anymore 

Both Chip ID and strapping registers are now read out during of APB MISC
initialization, the registers' mapping isn't needed anymore once registers
are read. Hence let's unmap registers once they are not needed anymore,
for consistency.

Suggested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2019-12-18 21:23:04 +03:00 committed by Thierry Reding
parent 2d9ea1934f
commit 02676345e9
1 changed files with 8 additions and 4 deletions
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12
drivers/soc/tegra/fuse/tegra-apbmisc.c
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@ -158,16 +158,20 @@ void __init tegra_init_apbmisc(void)
} }
apbmisc_base = ioremap_nocache(apbmisc.start, resource_size(&apbmisc)); apbmisc_base = ioremap_nocache(apbmisc.start, resource_size(&apbmisc));
if (!apbmisc_base) if (!apbmisc_base) {
pr_err("failed to map APBMISC registers\n"); pr_err("failed to map APBMISC registers\n");
else } else {
chipid = readl_relaxed(apbmisc_base + 4); chipid = readl_relaxed(apbmisc_base + 4);
iounmap(apbmisc_base);
}
strapping_base = ioremap_nocache(straps.start, resource_size(&straps)); strapping_base = ioremap_nocache(straps.start, resource_size(&straps));
if (!strapping_base) if (!strapping_base) {
pr_err("failed to map strapping options registers\n"); pr_err("failed to map strapping options registers\n");
else } else {
strapping = readl_relaxed(strapping_base); strapping = readl_relaxed(strapping_base);
iounmap(strapping_base);
}
long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code"); long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code");
} }