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ARM: dts: am335x-baltos-ir5221: use dedicated RTS/CTS signals

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Before "tty: Add software emulated RS485 support for 8250" patch Baltos devices
relied on MCTRL_GPIO framework to handle both modem signals and RS485 mode.

With emulated RS485 support for 8250 we can now use these pins as dedicated
RTS/CTS signals taking advantage of hardware flow control etc. when operating
in RS232 mode.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Yegor Yefremov 2016-03-29 12:08:08 +02:00 committed by Tony Lindgren
parent a7cac713f9
commit 5e0884a486
1 changed files with 4 additions and 8 deletions
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12
arch/arm/boot/dts/am335x-baltos-ir5221.dts
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@ -109,8 +109,8 @@
pinctrl-single,pins = <
AM33XX_IOPAD(0x980, PIN_INPUT | MUX_MODE0) /* uart1_rxd */
AM33XX_IOPAD(0x984, PIN_INPUT | MUX_MODE0) /* uart1_txd */
AM33XX_IOPAD(0x978, PIN_INPUT_PULLDOWN | MUX_MODE7) /* uart1_ctsn, INPUT | MODE0 */
AM33XX_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* uart1_rtsn, OUTPUT | MODE0 */
AM33XX_IOPAD(0x978, PIN_INPUT_PULLDOWN | MUX_MODE0) /* uart1_ctsn */
AM33XX_IOPAD(0x97c, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart1_rtsn */
AM33XX_IOPAD(0x8e0, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* lcd_vsync.gpio2[22] DTR */
AM33XX_IOPAD(0x8e4, PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_hsync.gpio2[23] DSR */
AM33XX_IOPAD(0x8e8, PIN_INPUT_PULLDOWN | MUX_MODE7) /* lcd_pclk.gpio2[24] DCD */
@ -122,8 +122,8 @@
pinctrl-single,pins = <
AM33XX_IOPAD(0x950, PIN_INPUT | MUX_MODE1) /* spi0_sclk.uart2_rxd_mux3 */
AM33XX_IOPAD(0x954, PIN_OUTPUT | MUX_MODE1) /* spi0_d0.uart2_txd_mux3 */
AM33XX_IOPAD(0x988, PIN_INPUT_PULLDOWN | MUX_MODE7) /* i2c0_sda.uart2_ctsn_mux0 */
AM33XX_IOPAD(0x98c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* i2c0_scl.uart2_rtsn_mux0 */
AM33XX_IOPAD(0x988, PIN_INPUT_PULLDOWN | MUX_MODE2) /* i2c0_sda.uart2_ctsn_mux0 */
AM33XX_IOPAD(0x98c, PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* i2c0_scl.uart2_rtsn_mux0 */
AM33XX_IOPAD(0x830, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad12.gpio1[12] DTR */
AM33XX_IOPAD(0x834, PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad13.gpio1[13] DSR */
AM33XX_IOPAD(0x838, PIN_INPUT_PULLDOWN | MUX_MODE7) /* gpmc_ad14.gpio1[14] DCD */
@ -287,8 +287,6 @@
dsr-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
dcd-gpios = <&gpio2 24 GPIO_ACTIVE_LOW>;
rng-gpios = <&gpio2 25 GPIO_ACTIVE_LOW>;
cts-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
rts-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
status = "okay";
};
@ -300,8 +298,6 @@
dsr-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
dcd-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
rng-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
cts-gpios = <&gpio3 5 GPIO_ACTIVE_LOW>;
rts-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
status = "okay";
};