[PATCH 11/11] clk: tegra: WARN if clk in the init_table has enable

From: Rhyland Klein
Date: Wed May 25 2016 - 18:26:07 EST


Enabling clocks through the init_table mechanism is deprecated. Clocks
that need to be enabled early and stay on should be marked as CRITICAL.

Signed-off-by: Rhyland Klein <rklein@xxxxxxxxxx>
---
drivers/clk/tegra/clk.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c
index b2cdd9a235f4..898fe922c742 100644
--- a/drivers/clk/tegra/clk.c
+++ b/drivers/clk/tegra/clk.c
@@ -262,6 +262,11 @@ void __init tegra_init_from_table(struct tegra_clk_init_table *tbl,
WARN_ON(1);
}

+ /* Using the init_table to enable clks at boot is
+ * deprecated. Clks that need to be enabled through early
+ * boot, they should be marked as CLK_IS_CRITICAL
+ */
+ WARN_ON_ONCE(tbl->state);
if (tbl->state)
if (clk_prepare_enable(clk)) {
pr_err("%s: Failed to enable %s\n", __func__,
--
1.9.1