From 4cf986348522f4a0e9a24d13f371178e600d417d Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Thu, 27 Oct 2016 14:11:41 -0300
Subject: [PATCH] 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>
---
 arch/arm/boot/dts/exynos5250-snow-common.dtsi | 4 ++++
 arch/arm/boot/dts/exynos5420-peach-pit.dts    | 3 +++
 arch/arm/boot/dts/exynos5800-peach-pi.dts     | 3 +++
 3 files changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5250-snow-common.dtsi b/arch/arm/boot/dts/exynos5250-snow-common.dtsi
index d5d51916bb74..8f3a80430748 100644
--- 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 ec4a00f1ce01..1f964ec35c5e 100644
--- 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 01f466816fea..f9ff7f07ae0c 100644
--- 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>;
-- 
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