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authorDmitry Osipenko <digetx@gmail.com>2020-02-25 02:58:34 +0300
committerThierry Reding <treding@nvidia.com>2020-03-11 15:24:15 +0100
commit2243af41115d0e36e6414df6dd2a0386e022d9f8 (patch)
tree9e74de6823d95c4af98286389980cc4af0f0810e /drivers/memory
parentbb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 (diff)
downloadlwn-2243af41115d0e36e6414df6dd2a0386e022d9f8.tar.gz
lwn-2243af41115d0e36e6414df6dd2a0386e022d9f8.zip
memory: tegra: Correct debugfs clk rate-range on Tegra20
Correctly set clk rate-range if number of available timings is zero. This fixes noisy "invalid range [4294967295, 0]" error messages during boot. Fixes: 8209eefa3d37 ("memory: tegra: Implement EMC debugfs interface on Tegra20") Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/memory')
-rw-r--r--drivers/memory/tegra/tegra20-emc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 8ae474d9bfb9..b16715e9515d 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -628,6 +628,11 @@ static void tegra_emc_debugfs_init(struct tegra_emc *emc)
emc->debugfs.max_rate = emc->timings[i].rate;
}
+ if (!emc->num_timings) {
+ emc->debugfs.min_rate = clk_get_rate(emc->clk);
+ emc->debugfs.max_rate = emc->debugfs.min_rate;
+ }
+
err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate,
emc->debugfs.max_rate);
if (err < 0) {