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 d5d51916bb742ca988e2eb6f937b2b2d6ae46699..8f3a804307488575fbf6b98e8252a7b0a92306ee 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 ec4a00f1ce01e7a607844dcfb38a951e4d49eec4..1f964ec35c5ec87d9ed433a38f07d3bcea146886 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 01f466816fea714f1056c041965205dead9db615..f9ff7f07ae0c4c171a96fb75c6cc13725e06da74 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>;