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authorLaurent Meunier <laurent.meunier@st.com>2013-02-06 09:09:44 +0100
committerLinus Walleij <linus.walleij@linaro.org>2013-02-10 21:11:54 +0100
commit6f9e41f4e673bf9ae6a5c0831b1524a91ea1c440 (patch)
tree9cff86fdcbbefdbca5520cc1746163d7ad9534a6 /drivers/pinctrl/core.c
parentpinctrl: samsung: remove duplicated line (diff)
downloadlinux-6f9e41f4e673bf9ae6a5c0831b1524a91ea1c440.tar.xz
linux-6f9e41f4e673bf9ae6a5c0831b1524a91ea1c440.zip
pinctrl/pinconfig: add debug interface
This update adds a debugfs interface to modify a pin configuration for a given state in the pinctrl map. This allows to modify the configuration for a non-active state, typically sleep state. This configuration is not applied right away, but only when the state will be entered. This solution is mandated for us by HW validation: in order to test and verify several pin configurations during sleep without recompiling the software. Signed-off-by: Laurent Meunier <laurent.meunier@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/core.c')
-rw-r--r--drivers/pinctrl/core.c18
1 files changed, 1 insertions, 17 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index b0a8e9a38393..b0de6e7f1fdb 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -32,17 +32,6 @@
#include "pinmux.h"
#include "pinconf.h"
-/**
- * struct pinctrl_maps - a list item containing part of the mapping table
- * @node: mapping table list node
- * @maps: array of mapping table entries
- * @num_maps: the number of entries in @maps
- */
-struct pinctrl_maps {
- struct list_head node;
- struct pinctrl_map const *maps;
- unsigned num_maps;
-};
static bool pinctrl_dummy_state;
@@ -56,13 +45,8 @@ LIST_HEAD(pinctrldev_list);
static LIST_HEAD(pinctrl_list);
/* List of pinctrl maps (struct pinctrl_maps) */
-static LIST_HEAD(pinctrl_maps);
+LIST_HEAD(pinctrl_maps);
-#define for_each_maps(_maps_node_, _i_, _map_) \
- list_for_each_entry(_maps_node_, &pinctrl_maps, node) \
- for (_i_ = 0, _map_ = &_maps_node_->maps[_i_]; \
- _i_ < _maps_node_->num_maps; \
- _i_++, _map_ = &_maps_node_->maps[_i_])
/**
* pinctrl_provide_dummies() - indicate if pinctrl provides dummy state support