ARM: dts: exynos: Document eMMC/SD/SDIO devices in Snow and Peach boards

There's a cognitive load to figure out which mmc device node corresponds
to the eMMC flash, uSD card and WiFI SDIO module on the Snow, Peach Pi
and Pit boards.

So it's better to have comments in the DTS to make this more clear.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
[krzk: Squashed three patches into one]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
index d5d5191..8f3a804 100644 (file)
--- a/arch/arm/boot/dts/exynos5250-snow-common.dtsi
+++ b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
@@ -523,6 +523,7 @@
        status = "okay";
 };
 
+/* eMMC flash */
 &mmc_0 {
        status = "okay";
        num-slots = <1>;
@@ -536,6 +537,7 @@
        cap-mmc-highspeed;
 };
 
+/* uSD card */
 &mmc_2 {
        status = "okay";
        num-slots = <1>;
@@ -553,6 +555,8 @@
 /*
  * On Snow we've got SIP WiFi and so can keep drive strengths low to
  * reduce EMI.
+ *
+ * WiFi SDIO module
  */
 &mmc_3 {
        status = "okay";

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index ec4a00f..1f964ec 100644 (file)
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -697,6 +697,7 @@
        status = "okay";
 };
 
+/* eMMC flash */
 &mmc_0 {
        status = "okay";
        num-slots = <1>;
@@ -714,6 +715,7 @@
        bus-width = <8>;
 };
 
+/* WiFi SDIO module */
 &mmc_1 {
        status = "okay";
        num-slots = <1>;
@@ -733,6 +735,7 @@
        vqmmc-supply = <&buck10_reg>;
 };
 
+/* uSD card */
 &mmc_2 {
        status = "okay";
        num-slots = <1>;

diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 01f4668..f9ff7f0 100644 (file)
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -665,6 +665,7 @@
        status = "okay";
 };
 
+/* eMMC flash */
 &mmc_0 {
        status = "okay";
        num-slots = <1>;
@@ -683,6 +684,7 @@
        bus-width = <8>;
 };
 
+/* WiFi SDIO module */
 &mmc_1 {
        status = "okay";
        num-slots = <1>;
@@ -702,6 +704,7 @@
        vqmmc-supply = <&buck10_reg>;
 };
 
+/* uSD card */
 &mmc_2 {
        status = "okay";
        num-slots = <1>;