google/oak: Configure backlight control pins
Since backlight is controlled in depthcharge, we only configure control pins as output pin and set them power-off in the coreboot stage. BRANCH=none BUG=none TEST=Saw DEV screen during boot process. Change-Id: I3ed95e133417194ec8e774f42770bc61d879295f Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e9628781801943903ba99ba1071aa374c6fc0754 Original-Change-Id: Ifd101f3e08698561d8516d83bc7d502d210e3b66 Original-Signed-off-by: YH Huang <yh.huang@mediatek.com> Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292686 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/13093 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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@ -67,9 +67,37 @@ static void configure_audio(void)
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mt_pll_set_aud_div(48 * KHz);
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}
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/* Setup backlight control pins as output pin and power-off by default */
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static void configure_backlight(void)
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{
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switch (board_id()) {
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case 0:
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gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */
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mt6391_gpio_output(MT6391_KP_ROW3, 0); /* PANEL_POWER_EN_6397 */
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break;
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case 1:
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case 2:
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gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */
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gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */
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break;
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case 3:
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gpio_output(PAD_UCTS2, 0); /* PANEL_LCD_POWER_EN */
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gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */
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gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */
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break;
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case 4:
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default:
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gpio_output(PAD_SRCLKENAI, 0); /* PANEL_LCD_POWER_EN */
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gpio_output(PAD_DISP_PWM0, 0); /* DISP_PWM0 */
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gpio_output(PAD_PCM_TX, 0); /* PANEL_POWER_EN */
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break;
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}
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}
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static void mainboard_init(device_t dev)
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{
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configure_audio();
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configure_backlight();
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}
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static void mainboard_enable(device_t dev)
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