msm: 9615: Add display support to board file
Add gpio, regulator configurations
Add frame buffer initialization
Change-Id: Ia1c0c0243258b81767c200a109fa0f7c88394fb2
Signed-off-by: Zhang Chang Ken <kenz@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-9615-display.c b/arch/arm/mach-msm/board-9615-display.c
new file mode 100644
index 0000000..74bc984
--- /dev/null
+++ b/arch/arm/mach-msm/board-9615-display.c
@@ -0,0 +1,169 @@
+/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/bootmem.h>
+#include <linux/ion.h>
+#include <asm/mach-types.h>
+#include <mach/msm_memtypes.h>
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/gpiomux.h>
+#include <mach/ion.h>
+#include <mach/msm_bus_board.h>
+
+#include "devices.h"
+#include "board-9615.h"
+
+/* prim = 240 x 320 x 4(bpp) x 2(pages) */
+#define MSM_FB_PRIM_BUF_SIZE roundup(240 * 320 * 4 * 2, 0x10000)
+#define MSM_FB_SIZE roundup(MSM_FB_PRIM_BUF_SIZE, 4096)
+
+#define GPIO_PIN_EBI2_LCD_A_D 21
+#define GPIO_PIN_EBI2_LCD_CS 22
+#define GPIO_PIN_EBI2_LCD_RS 24
+
+
+#ifdef CONFIG_FB_MSM
+
+static struct resource msm_fb_resources[] = {
+ {
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static int msm_fb_detect_panel(const char *name)
+{
+ return 0;
+}
+
+static struct msm_fb_platform_data msm_fb_pdata = {
+ .detect_client = msm_fb_detect_panel,
+};
+
+static struct platform_device msm_fb_device = {
+ .name = "msm_fb",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(msm_fb_resources),
+ .resource = msm_fb_resources,
+ .dev.platform_data = &msm_fb_pdata,
+};
+
+void __init mdm9615_allocate_fb_region(void)
+{
+ void *addr;
+ unsigned long size;
+
+ size = MSM_FB_SIZE;
+ addr = alloc_bootmem_align(size, 0x1000);
+ msm_fb_resources[0].start = __pa(addr);
+ msm_fb_resources[0].end = msm_fb_resources[0].start + size - 1;
+ pr_info("allocating %lu bytes at %p (%lx physical) for fb\n",
+ size, addr, __pa(addr));
+}
+
+
+static bool ebi2_power_init;
+static int ebi2_panel_power(int on)
+{
+ static struct regulator *panel_power;
+ int rc;
+
+ pr_debug("%s: on=%d\n", __func__, on);
+
+ if (!ebi2_power_init) {
+ panel_power = regulator_get(&msm_ebi2_lcdc_device.dev,
+ "VDDI2");
+ if (IS_ERR_OR_NULL(panel_power)) {
+ pr_err("could not get L14, rc = %ld\n",
+ PTR_ERR(panel_power));
+ return -ENODEV;
+ }
+
+ rc = regulator_set_voltage(panel_power, 2800000, 3800000);
+ if (rc) {
+ pr_err("set_voltage L14 failed, rc=%d\n", rc);
+ return -EINVAL;
+ }
+
+ ebi2_power_init = true;
+ }
+
+ if (on) {
+ rc = regulator_enable(panel_power);
+ if (rc) {
+ pr_err("enable L14 failed, rc=%d\n", rc);
+ return -ENODEV;
+ }
+ rc = gpio_request(GPIO_PIN_EBI2_LCD_A_D, "disp_a_d");
+ if (rc) {
+ pr_err("request gpio EBI2_LCD_A_D failed, rc=%d\n", rc);
+ goto error1;
+ }
+ rc = gpio_request(GPIO_PIN_EBI2_LCD_CS, "disp_cs");
+ if (rc) {
+ pr_err("request gpio EBI2_LCD_CS failed, rc=%d\n", rc);
+ goto error2;
+ }
+ rc = gpio_request(GPIO_PIN_EBI2_LCD_RS, "disp_rs");
+ if (rc) {
+ pr_err("request gpio EBI2_LCD_RS failed, rc=%d\n", rc);
+ goto error3;
+ }
+ } else {
+ gpio_free(GPIO_PIN_EBI2_LCD_RS);
+ gpio_free(GPIO_PIN_EBI2_LCD_CS);
+ gpio_free(GPIO_PIN_EBI2_LCD_A_D);
+
+ rc = regulator_disable(panel_power);
+ if (rc) {
+ pr_err("disable L14 failed, rc=%d\n", rc);
+ return -ENODEV;
+ }
+ }
+
+ return 0;
+error3:
+ gpio_free(GPIO_PIN_EBI2_LCD_CS);
+error2:
+ gpio_free(GPIO_PIN_EBI2_LCD_A_D);
+error1:
+ regulator_disable(panel_power);
+ return rc;
+
+}
+
+static struct lcdc_platform_data ebi2_lcdc_pdata = {
+ .lcdc_power_save = ebi2_panel_power,
+};
+
+static struct lvds_panel_platform_data ebi2_epson_s1d_pdata;
+
+static struct platform_device ebi2_epson_s1d_panel_device = {
+ .name = "ebi2_epson_s1d_qvga",
+ .id = 0,
+ .dev = {
+ .platform_data = &ebi2_epson_s1d_pdata,
+ }
+};
+
+void __init mdm9615_init_fb(void)
+{
+ platform_device_register(&msm_fb_device);
+ platform_device_register(&ebi2_epson_s1d_panel_device);
+
+ msm_fb_register_device("ebi2_lcd", &ebi2_lcdc_pdata);
+}
+#endif