path: root/drivers
diff options
authorStephen Warren <swarren@nvidia.com>2011-12-13 15:21:01 -0700
committerStephen Warren <swarren@nvidia.com>2012-04-18 10:26:39 -0600
commitf30d12b3ffb321c9d29bd1588940704d9bed2643 (patch)
tree0842183a866a3b45c1881210e423f4b8932b682b /drivers
parent3e215d0a19c2a0c389bd9117573b6dd8e46f96a8 (diff)
ARM: tegra: Switch to new pinctrl driver
* Rename old pinmux and new pinctrl platform driver and DT match table entries, so the new driver gets instantiated. * Re-write board-pinmux.c, so that it uses pinctrl APIs to configura the pinmux. * Re-write board-*-pinmux.c so that the pinmux configuration tables are in pinctrl format. Ventana's pin mux table needed some edits on top of the basic format conversion, since some mux options that were previously marked as reserved are now valid in the new pinctrl driver. Attempting to use the old reserved names will result in a failure. Specifically, groups lpw0, lpw2, lsc1, lsck, and lsda were changed from function rsvd4 to displaya, and group pta was changed from function rsvd2 to hdmi. All boards' pin mux tables needed some edits on top of the based format conversion, since function i2c was split into i2c1 (first general I2C controller) and i2cp (power I2C controller) to better align function definitions with HW blocks. Due to the split of mux tables into pure mux and pull/tristate tables, many entries in the separate Seaboard/Ventana tables could be merged into the common table, since the entries differed only in the portion in one of the tables, not both. Most pin groups allow configuration of mux, tri-state, and pull. However, some don't allow pull configuration, which is instead configured by new groups that only allow pull configuration. This is a reflection of the true HW capabilities, which weren't fully represented by the old pinmux driver. This required adding new pull table entries for those new groups, and setting many other entries' pull configuration to TEGRA_PINCONFIG_DONT_SET. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers')
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
index 2c98fba01ca..f6eba9c3c9e 100644
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ b/drivers/pinctrl/pinctrl-tegra.c
@@ -33,7 +33,7 @@
#include "pinctrl-tegra.h"
-#define DRIVER_NAME "tegra-pinmux-disabled"
+#define DRIVER_NAME "tegra-pinmux"
struct tegra_pmx {
struct device *dev;
@@ -599,13 +599,13 @@ static struct pinctrl_desc tegra_pinctrl_desc = {
static struct of_device_id tegra_pinctrl_of_match[] __devinitdata = {
- .compatible = "nvidia,tegra20-pinmux-disabled",
+ .compatible = "nvidia,tegra20-pinmux",
.data = tegra20_pinctrl_init,
- .compatible = "nvidia,tegra30-pinmux-disabled",
+ .compatible = "nvidia,tegra30-pinmux",
.data = tegra30_pinctrl_init,