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kernel
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linux
ARM: dts: cm-t335: add support for DVI/LCD
Add pinmux configuration for DVI/LCD.
Add DRM display driver node with timing configurations for DVI and LCD.
Add I2C GPIOs configurations for DVI and LCD enable.
Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
authored by
Uri Mashiach
and committed by
Tony Lindgren
3089e40e
98e5d898
+192
+192
arch/arm/boot/dts/am335x-sbc-t335.dts
+192
arch/arm/boot/dts/am335x-sbc-t335.dts
···
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/ {
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model = "CompuLab CM-T335 on SB-T335";
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compatible = "compulab,sbc-t335", "compulab,cm-t335", "ti,am33xx";
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+
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+
/* DRM display driver */
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+
panel {
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+
compatible = "ti,tilcdc,panel";
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status = "okay";
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pinctrl-names = "default", "sleep";
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pinctrl-0 = <&lcd_pins_default>;
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pinctrl-1 = <&lcd_pins_sleep>;
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+
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+
panel-info {
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ac-bias = <255>;
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ac-bias-intrpt = <0>;
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+
dma-burst-sz = <16>;
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+
bpp = <32>;
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+
fdd = <0x80>;
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+
sync-edge = <0>;
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sync-ctrl = <1>;
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+
raster-order = <0>;
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+
fifo-th = <0>;
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};
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+
display-timings {
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/* Timing selection performed by U-Boot */
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timing0: lcd {/* 800x480p62 */
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clock-frequency = <30000000>;
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+
hactive = <800>;
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vactive = <480>;
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+
hfront-porch = <39>;
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hback-porch = <39>;
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+
hsync-len = <47>;
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vback-porch = <29>;
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vfront-porch = <13>;
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vsync-len = <2>;
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hsync-active = <1>;
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vsync-active = <1>;
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};
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timing1: dvi { /* 1024x768p60 */
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clock-frequency = <65000000>;
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hactive = <1024>;
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hfront-porch = <24>;
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hback-porch = <160>;
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hsync-len = <136>;
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vactive = <768>;
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vfront-porch = <3>;
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vback-porch = <29>;
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vsync-len = <6>;
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hsync-active = <0>;
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vsync-active = <0>;
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};
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};
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};
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};
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+
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&am33xx_pinmux {
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/* Display */
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lcd_pins_default: lcd_pins_default {
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pinctrl-single,pins = <
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/* gpmc_ad8.lcd_data23 */
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AM33XX_IOPAD(0x820, PIN_OUTPUT | MUX_MODE1)
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/* gpmc_ad9.lcd_data22 */
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+
AM33XX_IOPAD(0x824, PIN_OUTPUT | MUX_MODE1)
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+
/* gpmc_ad10.lcd_data21 */
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AM33XX_IOPAD(0x828, PIN_OUTPUT | MUX_MODE1)
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+
/* gpmc_ad11.lcd_data20 */
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AM33XX_IOPAD(0x82c, PIN_OUTPUT | MUX_MODE1)
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+
/* gpmc_ad12.lcd_data19 */
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AM33XX_IOPAD(0x830, PIN_OUTPUT | MUX_MODE1)
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/* gpmc_ad13.lcd_data18 */
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AM33XX_IOPAD(0x834, PIN_OUTPUT | MUX_MODE1)
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+
/* gpmc_ad14.lcd_data17 */
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AM33XX_IOPAD(0x838, PIN_OUTPUT | MUX_MODE1)
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+
/* gpmc_ad15.lcd_data16 */
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AM33XX_IOPAD(0x83c, PIN_OUTPUT | MUX_MODE1)
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+
/* lcd_data0.lcd_data0 */
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AM33XX_IOPAD(0x8a0, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data1.lcd_data1 */
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AM33XX_IOPAD(0x8a4, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data2.lcd_data2 */
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AM33XX_IOPAD(0x8a8, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data3.lcd_data3 */
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AM33XX_IOPAD(0x8ac, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data4.lcd_data4 */
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AM33XX_IOPAD(0x8b0, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data5.lcd_data5 */
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AM33XX_IOPAD(0x8b4, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data6.lcd_data6 */
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AM33XX_IOPAD(0x8b8, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data7.lcd_data7 */
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AM33XX_IOPAD(0x8bc, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data8.lcd_data8 */
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AM33XX_IOPAD(0x8c0, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data9.lcd_data9 */
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+
AM33XX_IOPAD(0x8c4, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data10.lcd_data10 */
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+
AM33XX_IOPAD(0x8c8, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data11.lcd_data11 */
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+
AM33XX_IOPAD(0x8cc, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data12.lcd_data12 */
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+
AM33XX_IOPAD(0x8d0, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data13.lcd_data13 */
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AM33XX_IOPAD(0x8d4, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_data14.lcd_data14 */
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AM33XX_IOPAD(0x8d8, PIN_OUTPUT | MUX_MODE0)
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/* lcd_data15.lcd_data15 */
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AM33XX_IOPAD(0x8dc, PIN_OUTPUT | MUX_MODE0)
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+
/* lcd_vsync.lcd_vsync */
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AM33XX_IOPAD(0x8e0, PIN_OUTPUT | MUX_MODE0)
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/* lcd_hsync.lcd_hsync */
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AM33XX_IOPAD(0x8e4, PIN_OUTPUT | MUX_MODE0)
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/* lcd_pclk.lcd_pclk */
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AM33XX_IOPAD(0x8e8, PIN_OUTPUT | MUX_MODE0)
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/* lcd_ac_bias_en.lcd_ac_bias_en */
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AM33XX_IOPAD(0x8ec, PIN_OUTPUT | MUX_MODE0)
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>;
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};
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+
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lcd_pins_sleep: lcd_pins_sleep {
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pinctrl-single,pins = <
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/* gpmc_ad8.lcd_data23 */
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AM33XX_IOPAD(0x820, PIN_INPUT_PULLDOWN | MUX_MODE7)
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+
/* gpmc_ad9.lcd_data22 */
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AM33XX_IOPAD(0x824, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad10.lcd_data21 */
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AM33XX_IOPAD(0x828, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad11.lcd_data20 */
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AM33XX_IOPAD(0x82c, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad12.lcd_data19 */
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AM33XX_IOPAD(0x830, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad13.lcd_data18 */
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AM33XX_IOPAD(0x834, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad14.lcd_data17 */
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AM33XX_IOPAD(0x838, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* gpmc_ad15.lcd_data16 */
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AM33XX_IOPAD(0x83c, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* lcd_data0.lcd_data0 */
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AM33XX_IOPAD(0x8a0, PULL_DISABLE | MUX_MODE7)
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/* lcd_data1.lcd_data1 */
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AM33XX_IOPAD(0x8a4, PULL_DISABLE | MUX_MODE7)
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/* lcd_data2.lcd_data2 */
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AM33XX_IOPAD(0x8a8, PULL_DISABLE | MUX_MODE7)
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/* lcd_data3.lcd_data3 */
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AM33XX_IOPAD(0x8ac, PULL_DISABLE | MUX_MODE7)
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/* lcd_data4.lcd_data4 */
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AM33XX_IOPAD(0x8b0, PULL_DISABLE | MUX_MODE7)
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/* lcd_data5.lcd_data5 */
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AM33XX_IOPAD(0x8b4, PULL_DISABLE | MUX_MODE7)
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/* lcd_data6.lcd_data6 */
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AM33XX_IOPAD(0x8b8, PULL_DISABLE | MUX_MODE7)
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/* lcd_data7.lcd_data7 */
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AM33XX_IOPAD(0x8bc, PULL_DISABLE | MUX_MODE7)
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/* lcd_data8.lcd_data8 */
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AM33XX_IOPAD(0x8c0, PULL_DISABLE | MUX_MODE7)
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/* lcd_data9.lcd_data9 */
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AM33XX_IOPAD(0x8c4, PULL_DISABLE | MUX_MODE7)
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/* lcd_data10.lcd_data10 */
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AM33XX_IOPAD(0x8c8, PULL_DISABLE | MUX_MODE7)
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/* lcd_data11.lcd_data11 */
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AM33XX_IOPAD(0x8cc, PULL_DISABLE | MUX_MODE7)
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/* lcd_data12.lcd_data12 */
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AM33XX_IOPAD(0x8d0, PULL_DISABLE | MUX_MODE7)
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/* lcd_data13.lcd_data13 */
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AM33XX_IOPAD(0x8d4, PULL_DISABLE | MUX_MODE7)
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/* lcd_data14.lcd_data14 */
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AM33XX_IOPAD(0x8d8, PULL_DISABLE | MUX_MODE7)
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/* lcd_data15.lcd_data15 */
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AM33XX_IOPAD(0x8dc, PULL_DISABLE | MUX_MODE7)
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/* lcd_vsync.lcd_vsync */
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AM33XX_IOPAD(0x8e0, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* lcd_hsync.lcd_hsync */
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AM33XX_IOPAD(0x8e4, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* lcd_pclk.lcd_pclk */
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AM33XX_IOPAD(0x8e8, PIN_INPUT_PULLDOWN | MUX_MODE7)
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/* lcd_ac_bias_en.lcd_ac_bias_en */
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AM33XX_IOPAD(0x8ec, PIN_INPUT_PULLDOWN | MUX_MODE7)
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>;
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};
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};
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&i2c0 {
···
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gpio-controller;
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#gpio-cells = <2>;
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reg = <0x26>;
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dvi_ena {
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gpio-hog;
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gpios = <13 GPIO_ACTIVE_HIGH>;
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output-high;
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line-name = "dvi-enable";
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};
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lcd_ena {
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gpio-hog;
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gpios = <11 GPIO_ACTIVE_HIGH>;
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output-high;
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line-name = "lcd-enable";
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};
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};
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};
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/* Display */
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&lcdc {
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status = "okay";
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};