This patch disables devices initially(status = "disabled").
Devices will only be probed, if the devices are
present in the board file(status = "okay").
Signed-off-by: Sourav Poddar <sourav.poddar@xxxxxx>
---
v1->v2:
change approach to disabling devices in dtsi and
enable it in respective board file.
arch/arm/boot/dts/omap5-uevm.dts | 43 ++++++++++++++++++++-----------------
arch/arm/boot/dts/omap5.dtsi | 24 +++++++++++++++++++++
2 files changed, 47 insertions(+), 20 deletions(-)
diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 65d7b60..08d6bc1 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -235,30 +235,26 @@
};
&mmc1 {
+ status = "okay";
vmmc-supply = <&ldo9_reg>;
bus-width = <4>;
};
&mmc2 {
+ status = "okay";
vmmc-supply = <&vmmcsd_fixed>;
bus-width = <8>;
ti,non-removable;
};
&mmc3 {
+ status = "okay";
bus-width = <4>;
ti,non-removable;
};
-&mmc4 {
- status = "disabled";
-};
-
-&mmc5 {
- status = "disabled";
-};
-
&i2c1 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
@@ -451,14 +447,19 @@
};
&i2c5 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c5_pins>;
clock-frequency = <400000>;
};
-&mcbsp3 {
- status = "disabled";
+&mcbsp1 {
+ status = "okay";
+};
+
+&mcbsp2 {
+ status = "okay";
};
&usbhshost {
@@ -470,36 +471,38 @@
phys = <0 &hsusb2_phy &hsusb3_phy>;
};
-&mcspi1 {
-
-};
-
&mcspi2 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mcspi2_pins>;
};
&mcspi3 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mcspi3_pins>;
};
&mcspi4 {
+ status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&mcspi4_pins>;
};
&uart1 {
- pinctrl-names = "default";
- pinctrl-0 = <&uart1_pins>;
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
};
&uart3 {
- pinctrl-names = "default";
- pinctrl-0 = <&uart3_pins>;
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins>;
};
&uart5 {
- pinctrl-names = "default";
- pinctrl-0 = <&uart5_pins>;
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart5_pins>;
};
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 8500beb..96aa7ba 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -259,6 +259,7 @@
ti,hwmods = "i2c1";
clocks = <&func_96m_fclk>;
clock-names = "fck";
+ status = "disabled";
};
i2c2: i2c@48072000 {
@@ -270,6 +271,7 @@
ti,hwmods = "i2c2";
clocks = <&func_96m_fclk>;
clock-names = "fck";
+ status = "disabled";
};
i2c3: i2c@48060000 {
@@ -281,6 +283,7 @@
ti,hwmods = "i2c3";
clocks = <&func_96m_fclk>;
clock-names = "fck";
+ status = "disabled";
};
i2c4: i2c@4807a000 {
@@ -292,6 +295,7 @@
ti,hwmods = "i2c4";
clocks = <&func_96m_fclk>;
clock-names = "fck";
+ status = "disabled";
};
i2c5: i2c@4807c000 {
@@ -303,6 +307,7 @@
ti,hwmods = "i2c5";
clocks = <&func_96m_fclk>;
clock-names = "fck";
+ status = "disabled";
};
mcspi1: spi@48098000 {
@@ -325,6 +330,7 @@
<&sdma 42>;
dma-names = "tx0", "rx0", "tx1", "rx1",
"tx2", "rx2", "tx3", "rx3";
+ status = "disabled";
};
mcspi2: spi@4809a000 {
@@ -342,6 +348,7 @@
<&sdma 45>,
<&sdma 46>;
dma-names = "tx0", "rx0", "tx1", "rx1";
+ status = "disabled";
};
mcspi3: spi@480b8000 {
@@ -356,6 +363,7 @@
ti,spi-num-cs = <2>;
dmas = <&sdma 15>, <&sdma 16>;
dma-names = "tx0", "rx0";
+ status = "disabled";
};
mcspi4: spi@480ba000 {
@@ -370,6 +378,7 @@
ti,spi-num-cs = <1>;
dmas = <&sdma 70>, <&sdma 71>;
dma-names = "tx0", "rx0";
+ status = "disabled";
};
uart1: serial@4806a000 {
@@ -380,6 +389,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
uart2: serial@4806c000 {
@@ -390,6 +400,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
uart3: serial@48020000 {
@@ -400,6 +411,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
uart4: serial@4806e000 {
@@ -410,6 +422,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
uart5: serial@48066000 {
@@ -420,6 +433,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
uart6: serial@48068000 {
@@ -430,6 +444,7 @@
clocks = <&func_48m_fclk>;
clock-names = "fck";
clock-frequency = <48000000>;
+ status = "disabled";
};
mmc1: mmc@4809c000 {
@@ -443,6 +458,7 @@
ti,needs-special-reset;
dmas = <&sdma 61>, <&sdma 62>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mmc2: mmc@480b4000 {
@@ -455,6 +471,7 @@
ti,needs-special-reset;
dmas = <&sdma 47>, <&sdma 48>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mmc3: mmc@480ad000 {
@@ -467,6 +484,7 @@
ti,needs-special-reset;
dmas = <&sdma 77>, <&sdma 78>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mmc4: mmc@480d1000 {
@@ -479,6 +497,7 @@
ti,needs-special-reset;
dmas = <&sdma 57>, <&sdma 58>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mmc5: mmc@480d5000 {
@@ -491,6 +510,7 @@
ti,needs-special-reset;
dmas = <&sdma 59>, <&sdma 60>;
dma-names = "tx", "rx";
+ status = "disabled";
};
keypad: keypad@4ae1c000 {
@@ -499,6 +519,7 @@
ti,hwmods = "kbd";
clocks = <&sys_32k_ck>;
clock-names = "fck";
+ status = "disabled";
};
mcpdm: mcpdm@40132000 {
@@ -542,6 +563,7 @@
dmas = <&sdma 33>,
<&sdma 34>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mcbsp2: mcbsp@40124000 {
@@ -558,6 +580,7 @@
dmas = <&sdma 17>,
<&sdma 18>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mcbsp3: mcbsp@40126000 {
@@ -574,6 +597,7 @@
dmas = <&sdma 19>,
<&sdma 20>;
dma-names = "tx", "rx";
+ status = "disabled";
};
mailbox: mailbox@4a0f4000 {
--
1.7.1
--
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