MXC IOMUX-V3 replace struct pad_desc with bitmapped cookie (step 2)

This patch actually replaces the 'struct pad_desc' with a u64 cookie
to facilitate adding platform specific pad_ctrl settings to an
existing pad definition.

So, instead of:
	iomux_v3_cfg_t power_key = MX51_PAD_EIM_A27__GPIO_2_21;
	power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2;
	mxc_iomux_v3_setup_pad(&power_key);
one can write:
	mxc_iomux_v3_setup_pad((MX51_PAD_EIM_A27__GPIO_2_21 & ~MUX_PAD_CTRL_MASK) | MX51_GPIO_PAD_CTRL_2);

Patch applies to branch 'imx-for-2.6.38' of git://git.pengutronix.de/git/imx/linux-2.6

Signed-Off-By: Lothar Waßmann <LW@KARO-electronics.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 37 insertions, 53 deletions

diff --git a/arch/arm/plat-mxc/include/mach/iomux-v3.h b/arch/arm/plat-mxc/include/mach/iomux-v3.h
index 811716fbfbe6..1462a1c18940 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-v3.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-v3.h
@@ -42,58 +42,42 @@
  * If <padname> or <padmode> refers to a GPIO, it is named
  * GPIO_<unit>_<num>
  *
- */
-
-typedef struct deprecated_pad_desc {
-        unsigned mux_ctrl_ofs:12; /* IOMUXC_SW_MUX_CTL_PAD offset */
-        unsigned mux_mode:8;
-        unsigned pad_ctrl_ofs:12; /* IOMUXC_SW_PAD_CTRL offset */
-#define NO_PAD_CTRL     (1 << 16)
-        unsigned pad_ctrl:17;
-        unsigned select_input_ofs:12; /* IOMUXC_SELECT_INPUT offset */
-        unsigned select_input:3;
-} iomux_v3_cfg_t;
-
-static inline unsigned int MUX_CTRL_OFS(iomux_v3_cfg_t *pad)
-{
-        return pad->mux_ctrl_ofs;
-}
-
-static inline unsigned int MUX_MODE(iomux_v3_cfg_t *pad)
-{
-        return pad->mux_mode;
-}
-
-static inline unsigned int MUX_SELECT_INPUT_OFS(iomux_v3_cfg_t *pad)
-{
-        return pad->select_input_ofs;
-}
-
-static inline unsigned int MUX_SELECT_INPUT(iomux_v3_cfg_t *pad)
-{
-        return pad->select_input;
-}
-
-static inline unsigned int MUX_PAD_CTRL_OFS(iomux_v3_cfg_t *pad)
-{
-        return pad->pad_ctrl_ofs;
-}
-
-static inline unsigned int MUX_PAD_CTRL(iomux_v3_cfg_t *pad)
-{
-        return pad->pad_ctrl;
-}
-
-#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _select_input_ofs, \
-                _select_input, _pad_ctrl)                               \
-                {                                                       \
-                        .mux_ctrl_ofs     = _mux_ctrl_ofs,              \
-                        .mux_mode         = _mux_mode,                  \
-                        .pad_ctrl_ofs     = _pad_ctrl_ofs,              \
-                        .pad_ctrl         = _pad_ctrl,                  \
-                        .select_input_ofs = _select_input_ofs,          \
-                        .select_input     = _select_input,              \
-                }
+ * IOMUX/PAD Bit field definitions
+ *
+ * MUX_CTRL_OFS:            0..11 (12)
+ * PAD_CTRL_OFS:           12..23 (12)
+ * SEL_INPUT_OFS:          24..35 (12)
+ * MUX_MODE + SION:        36..40  (5)
+ * PAD_CTRL + NO_PAD_CTRL: 41..57 (17)
+ * SEL_INP:                58..61  (4)
+ * reserved:                 63    (1)
+*/
+
+typedef u64 iomux_v3_cfg_t;
+
+#define MUX_CTRL_OFS_SHIFT      0
+#define MUX_CTRL_OFS_MASK       ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT)
+#define MUX_PAD_CTRL_OFS_SHIFT  12
+#define MUX_PAD_CTRL_OFS_MASK   ((iomux_v3_cfg_t)0xfff << MUX_PAD_CTRL_OFS_SHIFT)
+#define MUX_SEL_INPUT_OFS_SHIFT 24
+#define MUX_SEL_INPUT_OFS_MASK  ((iomux_v3_cfg_t)0xfff << MUX_SEL_INPUT_OFS_SHIFT)
+
+#define MUX_MODE_SHIFT          36
+#define MUX_MODE_MASK           ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT)
+#define MUX_PAD_CTRL_SHIFT      41
+#define MUX_PAD_CTRL_MASK       ((iomux_v3_cfg_t)0x1ffff << MUX_PAD_CTRL_SHIFT)
+#define NO_PAD_CTRL             ((iomux_v3_cfg_t)1 << (MUX_PAD_CTRL_SHIFT + 16))
+#define MUX_SEL_INPUT_SHIFT     58
+#define MUX_SEL_INPUT_MASK      ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)
+
+#define IOMUX_PAD(_pad_ctrl_ofs, _mux_ctrl_ofs, _mux_mode, _sel_input_ofs, \
+                _sel_input, _pad_ctrl)                                  \
+        (((iomux_v3_cfg_t)(_mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) |      \
+                ((iomux_v3_cfg_t)(_mux_mode) << MUX_MODE_SHIFT) |       \
+                ((iomux_v3_cfg_t)(_pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \
+                ((iomux_v3_cfg_t)(_pad_ctrl) << MUX_PAD_CTRL_SHIFT) |   \
+                ((iomux_v3_cfg_t)(_sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT) | \
+                ((iomux_v3_cfg_t)(_sel_input) << MUX_SEL_INPUT_SHIFT))
 
 /*
  * Use to set PAD control
@@ -137,7 +121,7 @@ static inline unsigned int MUX_PAD_CTRL(iomux_v3_cfg_t *pad)
 /*
  * setups a single pad in the iomuxer
  */
-int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t *pad);
+int mxc_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
 
 /*
  * setups mutliple pads