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authorOlof Johansson <olof@lixom.net>2016-02-24 17:19:04 -0800
committerOlof Johansson <olof@lixom.net>2016-02-24 17:19:04 -0800
commit2bc51d76d20d7f6be064fe59755d1081de947221 (patch)
treee30e8e002041b22a8d3ba9e62d8f3b8b12f51c3a /arch/arm/boot/dts
parentf21a3c7d57b88004e5dced07106ac1691a73ce7b (diff)
parent5e72c25b40c1e9ed77650f258799514aabd17303 (diff)
downloadtalos-obmc-linux-2bc51d76d20d7f6be064fe59755d1081de947221.tar.gz
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Merge tag 'at91-ab-4.6-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/dt
DT changes for 4.6: - Addition of the ADC for sama5d2 and sama5d2_xplained * tag 'at91-ab-4.6-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: ARM: dts: at91: sama5d2 Xplained: enable the adc device ARM: dts: at91: sama5d2: add adc device Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/boot/dts')
-rw-r--r--arch/arm/boot/dts/at91-sama5d2_xplained.dts22
-rw-r--r--arch/arm/boot/dts/sama5d2.dtsi18
2 files changed, 34 insertions, 6 deletions
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index e683856c507c..5b65ffe0845a 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -267,7 +267,29 @@
};
};
+ adc: adc@fc030000 {
+ vddana-supply = <&vdd_3v3_lp_reg>;
+ vref-supply = <&vdd_3v3_lp_reg>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc_default>;
+ status = "okay";
+ };
+
pinctrl@fc038000 {
+ /*
+ * There is no real pinmux for ADC, if the pin
+ * is not requested by another peripheral then
+ * the muxing is done when channel is enabled.
+ * Requesting pins for ADC is GPIO is
+ * encouraged to prevent conflicts and to
+ * disable bias in order to be in the same
+ * state when the pin is not muxed to the adc.
+ */
+ pinctrl_adc_default: adc_default {
+ pinmux = <PIN_PD23__GPIO>;
+ bias-disable;
+ };
+
pinctrl_flx0_default: flx0_default {
pinmux = <PIN_PB28__FLEXCOM0_IO0>,
<PIN_PB29__FLEXCOM0_IO1>;
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 3f750f6170f2..46dd4308844e 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -88,12 +88,6 @@
#clock-cells = <0>;
clock-frequency = <0>;
};
-
- adc_op_clk: adc_op_clk{
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <1000000>;
- };
};
ns_sram: sram@00200000 {
@@ -1085,6 +1079,18 @@
status = "disabled";
};
+ adc: adc@fc030000 {
+ compatible = "atmel,sama5d2-adc";
+ reg = <0xfc030000 0x100>;
+ interrupts = <40 IRQ_TYPE_LEVEL_HIGH 7>;
+ clocks = <&adc_clk>;
+ clock-names = "adc_clk";
+ atmel,min-sample-rate-hz = <200000>;
+ atmel,max-sample-rate-hz = <20000000>;
+ atmel,startup-time-ms = <4>;
+ status = "disabled";
+ };
+
pioA: pinctrl@fc038000 {
compatible = "atmel,sama5d2-pinctrl";
reg = <0xfc038000 0x600>;
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