diff options
| author |   Dmitry Osipenko <digetx@gmail.com> | 2019-12-18 21:23:04 +0300 |
|---|---|---|
| committer |   Thierry Reding <treding@nvidia.com> | 2020-01-10 15:59:43 +0100 |
| commit | 02676345e9b31ad8907af3755960e3cfef575f8d (patch) | |
| tree | ca8cff73d6e99a4b8ac6392fecbd1258000ab7d7 /drivers/soc | |
| parent | soc/tegra: fuse: Correct straps' address for older Tegra124 device trees (diff) | |
| download | wireguard-linux-02676345e9b31ad8907af3755960e3cfef575f8d.tar.xz wireguard-linux-02676345e9b31ad8907af3755960e3cfef575f8d.zip | |
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>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/tegra/fuse/tegra-apbmisc.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c index 6259390f68f4..4a737f15e401 100644 --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c @@ -158,16 +158,20 @@ void __init tegra_init_apbmisc(void) } apbmisc_base = ioremap_nocache(apbmisc.start, resource_size(&apbmisc)); - if (!apbmisc_base) + if (!apbmisc_base) { pr_err("failed to map APBMISC registers\n"); - else + } else { chipid = readl_relaxed(apbmisc_base + 4); + iounmap(apbmisc_base); + } strapping_base = ioremap_nocache(straps.start, resource_size(&straps)); - if (!strapping_base) + if (!strapping_base) { pr_err("failed to map strapping options registers\n"); - else + } else { strapping = readl_relaxed(strapping_base); + iounmap(strapping_base); + } long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code"); } |