ARM: tegra: allow pinmux mux option not to be set by init tables
Define enum PMUX_FUNC_DEFAULT, which indicates that a table entry passed
to pinmux_config_pingrp()/pinmux_config_pingrp_table() shouldn't change
the mux option in HW.
For pins that will be used as GPIOs, the mux option is irrelevant, so we
simply don't want to define any mux option in the pinmux initialization
table.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
diff --git a/arch/arm/cpu/tegra-common/pinmux-common.c b/arch/arm/cpu/tegra-common/pinmux-common.c
index d62618c..6d7a7d9 100644
--- a/arch/arm/cpu/tegra-common/pinmux-common.c
+++ b/arch/arm/cpu/tegra-common/pinmux-common.c
@@ -92,6 +92,9 @@
int i, mux = -1;
u32 val;
+ if (func == PMUX_FUNC_DEFAULT)
+ return;
+
/* Error check on pin and func */
assert(pmux_pingrp_isvalid(pin));
assert(pmux_func_isvalid(func));