pinctrl: re-order struct pinctrl_map

The lookup key in struct pinctrl_map is (.dev_name, .name). Re-order the
struct definition to put the lookup key fields first, and the result
values afterwards. To me at least, this slightly better reflects the
lookup process.

Update the documentation in a similar fashion.

Note: PIN_MAP*() macros aren't updated; I plan to update this once later
when enhancing the mapping table format to support pin config to reduce
churn.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
[Rebased for cherry-picking]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 12 insertions, 12 deletions

diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index fa9163a..5e314ce 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -781,19 +781,19 @@ spi on the second function mapping:
 
 static const struct pinctrl_map __initdata mapping[] = {
 	{
+		.dev_name = "foo-spi.0",
 		.ctrl_dev_name = "pinctrl-foo",
 		.function = "spi0",
-		.dev_name = "foo-spi.0",
 	},
 	{
+		.dev_name = "foo-i2c.0",
 		.ctrl_dev_name = "pinctrl-foo",
 		.function = "i2c0",
-		.dev_name = "foo-i2c.0",
 	},
 	{
+		.dev_name = "foo-mmc.0",
 		.ctrl_dev_name = "pinctrl-foo",
 		.function = "mmc0",
-		.dev_name = "foo-mmc.0",
 	},
 };
 
@@ -826,18 +826,18 @@ As it is possible to map a function to different groups of pins an optional
 
 ...
 {
+	.dev_name = "foo-spi.0",
 	.name = "spi0-pos-A",
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "spi0",
 	.group = "spi0_0_grp",
-	.dev_name = "foo-spi.0",
 },
 {
+	.dev_name = "foo-spi.0",
 	.name = "spi0-pos-B",
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "spi0",
 	.group = "spi0_1_grp",
-	.dev_name = "foo-spi.0",
 },
 ...
 
@@ -852,45 +852,45 @@ case), we define a mapping like this:
 
 ...
 {
+	.dev_name = "foo-mmc.0",
 	.name = "2bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_1_grp",
-	.dev_name = "foo-mmc.0",
 },
 {
+	.dev_name = "foo-mmc.0",
 	.name = "4bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_1_grp",
-	.dev_name = "foo-mmc.0",
 },
 {
+	.dev_name = "foo-mmc.0",
 	.name = "4bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_2_grp",
-	.dev_name = "foo-mmc.0",
 },
 {
+	.dev_name = "foo-mmc.0",
 	.name = "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.group = "mmc0_1_grp",
-	.dev_name = "foo-mmc.0",
 },
 {
+	.dev_name = "foo-mmc.0",
 	.name = "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_2_grp",
-	.dev_name = "foo-mmc.0",
 },
 {
+	.dev_name = "foo-mmc.0",
 	.name = "8bit"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
 	.group = "mmc0_3_grp",
-	.dev_name = "foo-mmc.0",
 },
 ...
 
@@ -988,10 +988,10 @@ This is enabled by simply setting the .dev_name field in the map to the name
 of the pin controller itself, like this:
 
 {
+	.dev_name = "pinctrl-foo",
 	.name = "POWERMAP"
 	.ctrl_dev_name = "pinctrl-foo",
 	.function = "power_func",
-	.dev_name = "pinctrl-foo",
 },
 
 Since it may be common to request the core to hog a few always-applicable