diff options
| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-12-21 16:23:52 +0100 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2017-12-26 09:48:48 +0100 |
| commit | cb790819ade1d27e3c984f5357baab1ee353ec8f (patch) | |
| tree | 4b4e316cb143b4f1070a5182aa6f7005a3e8f330 /arch/arm/boot/dts | |
| parent | ARM: dts: vf610-zii-dev-rev-b: add PHYs for switch2 (diff) | |
| download | linux-cb790819ade1d27e3c984f5357baab1ee353ec8f.tar.xz linux-cb790819ade1d27e3c984f5357baab1ee353ec8f.zip | |
ARM: dts: imx51-babbage: Fix the 26MHz clock modelling
On imx51-babbage there is a 26MHz oscillator that is gated by GPIO3_1.
The output of this clock feeds audio codec clock and USB PHY clocks,
which are gated by GPIO4_26 and GPIO2_1 respectively.
Fix the clock representation by properly using gpio-gate-clock.
The clock nodes can be moved out of the 'clocks' node.
Based on a commit from Lucas Stach for imx51-zii-rdu1 board.
This also fixes the following build warning with W=1:
arch/arm/boot/dts/imx51-babbage.dtb: Warning (unit_address_vs_reg): Node /clocks/codec_clock has a reg or ranges property, but no unit name
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/imx51-babbage.dts | 67 |
1 files changed, 50 insertions, 17 deletions
diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts index c432de778850..4ac5ab614a7f 100644 --- a/arch/arm/boot/dts/imx51-babbage.dts +++ b/arch/arm/boot/dts/imx51-babbage.dts @@ -25,18 +25,41 @@ reg = <0x90000000 0x20000000>; }; - clocks { - ckih1 { - clock-frequency = <22579200>; - }; + ckih1 { + clock-frequency = <22579200>; + }; - clk_26M: codec_clock { - compatible = "fixed-clock"; - reg=<0>; - #clock-cells = <0>; - clock-frequency = <26000000>; - gpios = <&gpio4 26 GPIO_ACTIVE_LOW>; - }; + clk_osc: clk-osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <26000000>; + }; + + clk_osc_gate: clk-osc-gate { + compatible = "gpio-gate-clock"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_clk26mhz_osc>; + clocks = <&clk_osc>; + #clock-cells = <0>; + enable-gpios = <&gpio3 1 GPIO_ACTIVE_HIGH>; + }; + + clk_audio: clk-audio { + compatible = "gpio-gate-clock"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_clk26mhz_audio>; + clocks = <&clk_osc_gate>; + #clock-cells = <0>; + enable-gpios = <&gpio4 26 GPIO_ACTIVE_LOW>; + }; + + clk_usb: clk-usb { + compatible = "gpio-gate-clock"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_clk26mhz_usb>; + clocks = <&clk_osc_gate>; + #clock-cells = <0>; + enable-gpios = <&gpio2 1 GPIO_ACTIVE_LOW>; }; display1: disp1 { @@ -162,7 +185,7 @@ usbh1phy: usbh1phy@0 { compatible = "usb-nop-xceiv"; reg = <0>; - clocks = <&clks IMX5_CLK_DUMMY>; + clocks = <&clk_usb>; clock-names = "main_clk"; reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>; vcc-supply = <&vusb_reg>; @@ -345,10 +368,8 @@ sgtl5000: codec@a { compatible = "fsl,sgtl5000"; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_clkcodec>; reg = <0x0a>; - clocks = <&clk_26M>; + clocks = <&clk_audio>; VDDA-supply = <&vdig_reg>; VDDIO-supply = <&vvideo_reg>; }; @@ -441,9 +462,21 @@ >; }; - pinctrl_clkcodec: clkcodecgrp { + pinctrl_clk26mhz_audio: clk26mhzaudiocgrp { + fsl,pins = < + MX51_PAD_CSPI1_RDY__GPIO4_26 0x85 + >; + }; + + pinctrl_clk26mhz_osc: clk26mhzoscgrp { + fsl,pins = < + MX51_PAD_DI1_PIN12__GPIO3_1 0x85 + >; + }; + + pinctrl_clk26mhz_usb: clk26mhzusbgrp { fsl,pins = < - MX51_PAD_CSPI1_RDY__GPIO4_26 0x80000000 + MX51_PAD_EIM_D17__GPIO2_1 0x85 >; }; |