diff options
| author | Caesar Wang <wxt@rock-chips.com> | 2016-07-27 22:24:04 +0800 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2016-08-23 19:05:03 +0100 |
| commit | 543852af8e5902aee8f7c72c89e1513663e0f696 (patch) | |
| tree | a0dec27218598952eb683f3461331d4f8e8e623c /Documentation | |
| parent | 7ac61a062f3147dc23e3f12b9dfe7c4dd35f9cb8 (diff) | |
| download | linux-543852af8e5902aee8f7c72c89e1513663e0f696.tar.bz2 | |
iio: adc: rockchip_saradc: reset saradc controller before programming it
SARADC controller needs to be reset before programming it, otherwise
it will not function properly.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-iio@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt index bf99e2f24788..205593f56fe7 100644 --- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt +++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt @@ -16,6 +16,11 @@ Required properties: - vref-supply: The regulator supply ADC reference voltage. - #io-channel-cells: Should be 1, see ../iio-bindings.txt +Optional properties: +- resets: Must contain an entry for each entry in reset-names if need support + this option. See ../reset/reset.txt for details. +- reset-names: Must include the name "saradc-apb". + Example: saradc: saradc@2006c000 { compatible = "rockchip,saradc"; @@ -23,6 +28,8 @@ Example: interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>; clock-names = "saradc", "apb_pclk"; + resets = <&cru SRST_SARADC>; + reset-names = "saradc-apb"; #io-channel-cells = <1>; vref-supply = <&vcc18>; }; |