[PATCH v1 2/3] memory: tegra: Correct debugfs clk rate-range on Tegra30

[Dmitry Osipenko <digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Correctly set clk rate-range if number of available timings is zero.
This fixes noisy "invalid range [4294967295, 0]" error messages during
boot.

Fixes: 8cee32b40040 ("memory: tegra: Implement EMC debugfs interface on Tegra30")
Signed-off-by: Dmitry Osipenko <digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/memory/tegra/tegra30-emc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c
index d8372051963f..681fe2dde05d 100644
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@ -1264,6 +1264,11 @@ 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) {
-- 
2.24.0