mb/google/kukui: Initialize display

Many devices in Kukui family will be using MIPI panels, which needs
hard-coded EDID and initialization commands. And because each device may
have its own layout and ID, there should be very few devices sharing
same panel configuration. As a result, we want to put panel data (EDID
and init commands) into board-specific modules, provided by
`get_panel_description` function.

The panel numeric ID is identified by ADC 2, and is currently available
as higher 4 bits of sku_id(). After ID is retrieved, the
get_panel_description should return a reference to the EDID and table of
init commands. The default implementation is to simply return NULL, and
the data for real devices should be provided by panel_*.c in further commits.

BUG=b:80501386,b:117254947
BRANCH=none
TEST=boot correctly on Kukui

Change-Id: I19213aee1ac0f69f42e73be9e5ab72394f412a01
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32511
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/mainboard/google/kukui/panel.h b/src/mainboard/google/kukui/panel.h
new file mode 100644
index 0000000000..e68567ddd4
--- /dev/null
+++ b/src/mainboard/google/kukui/panel.h
@@ -0,0 +1,59 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Huaqin Telecom Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MAINBOARD_GOOGLE_KUKUI_PANEL_H__
+#define __MAINBOARD_GOOGLE_KUKUI_PANEL_H__
+
+#include <edid.h>
+#include <soc/dsi.h>
+
+struct panel_description {
+	struct edid edid;  /* edid info of this panel */
+	enum lb_fb_orientation orientation;  /* panel orientation */
+	void (*power_on)(void);  /* Callback to turn on panel */
+	struct lcm_init_command init[]; /* table of init commands */
+};
+
+/* Returns the panel description from given ID. */
+extern struct panel_description *get_panel_description(int panel_id);
+
+#define INIT_DCS_CMD(...) { \
+	.cmd = LCM_DCS_CMD, \
+	.len = sizeof((u8[]){__VA_ARGS__}), \
+	.data = {__VA_ARGS__} }
+
+#define INIT_GENERIC_CMD(...) { \
+	.cmd = LCM_GENERIC_CMD, \
+	.len = sizeof((u8[]){__VA_ARGS__}), \
+	.data = {__VA_ARGS__} }
+
+#define INIT_DELAY_CMD(delay) { \
+	.cmd = LCM_DELAY_CMD,\
+	.len = delay, }
+
+#define INIT_END_CMD { .cmd = LCM_END_CMD, }
+
+/* GPIO names */
+#define GPIO_LCM_RST_1V8		GPIO(LCM_RST)		/* 45 */
+#define GPIO_MIPIBRDG_PWRDN_L_1V8	GPIO(LCM_RST)		/* 45 */
+#define GPIO_MIPIBRDG_RST_L_1V8		GPIO(BPI_BUS3)		/* 73 */
+#define GPIO_PP1200_MIPIBRDG_EN		GPIO(BPI_OLAT1)		/* 54 */
+#define GPIO_PP1800_LCM_EN		GPIO(SIM2_SRST)		/* 36 */
+#define GPIO_PP3300_LCM_EN		GPIO(SIM2_SIO)		/* 35 */
+#define GPIO_PPVARN_LCD_EN		GPIO(PERIPHERAL_EN9)	/* 166 */
+#define GPIO_PPVARP_LCD_EN		GPIO(MISC_BSI_CK_3)	/* 66 */
+#define GPIO_VDDIO_MIPIBRDG_EN		GPIO(SIM2_SCLK)		/* 37 */
+
+#endif /* __MAINBOARD_GOOGLE_KUKUI_PANEL_H__ */