This patch creates a file which holds the framebuffer and
LCD code which is common for SMDK6440 and SMDK6450.
It mainly includes:
-- Basic FB window definition.
-- platform data for FB and LCD.
-- platform_device support for LCD.
Signed-off-by: Ajay Kumar <[email protected]>
---
arch/arm/mach-s5p64x0/Kconfig | 5 ++
arch/arm/mach-s5p64x0/Makefile | 3 +
arch/arm/mach-s5p64x0/common-fb.c | 92 ++++++++++++++++++++++++
arch/arm/mach-s5p64x0/include/mach/common-fb.h | 26 +++++++
4 files changed, 126 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-s5p64x0/common-fb.c
create mode 100644 arch/arm/mach-s5p64x0/include/mach/common-fb.h
diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig
index 4fee745..ed87151 100644
--- a/arch/arm/mach-s5p64x0/Kconfig
+++ b/arch/arm/mach-s5p64x0/Kconfig
@@ -32,6 +32,11 @@ config S5P64X0_SETUP_I2C1
help
Common setup code for i2c bus 1.
+config COMMON_FB
+ bool
+ help
+ Common framebuffer and LCD code which can be shared across SMDKs.
+
# machine support
config MACH_SMDK6440
diff --git a/arch/arm/mach-s5p64x0/Makefile b/arch/arm/mach-s5p64x0/Makefile
index 487d179..e5e90f9 100644
--- a/arch/arm/mach-s5p64x0/Makefile
+++ b/arch/arm/mach-s5p64x0/Makefile
@@ -22,6 +22,9 @@ obj-$(CONFIG_CPU_S5P6450) += clock-s5p6450.o
obj-$(CONFIG_MACH_SMDK6440) += mach-smdk6440.o
obj-$(CONFIG_MACH_SMDK6450) += mach-smdk6450.o
+#common code
+obj-$(CONFIG_COMMON_FB) += common-fb.o
+
# device support
obj-y += dev-audio.o
diff --git a/arch/arm/mach-s5p64x0/common-fb.c
b/arch/arm/mach-s5p64x0/common-fb.c
new file mode 100644
index 0000000..a5531ef
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/common-fb.c
@@ -0,0 +1,92 @@
+/* linux/arch/arm/mach-s5p64x0/common-fb.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Includes definitions for variables and functions
+ * needed in order to support framebuffer.
+ * Note that this code is common across SMDK6440 and SMDK6450.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/gpio.h>
+
+#include <mach/regs-clock.h>
+#include <mach/common-fb.h>
+
+#include <plat/devs.h>
+#include <plat/regs-fb.h>
+
+/* Frame Buffer */
+struct s3c_fb_pd_win smdk64x0_fb_win0 = {
+ .win_mode = {
+ .left_margin = 8,
+ .right_margin = 13,
+ .upper_margin = 7,
+ .lower_margin = 5,
+ .hsync_len = 3,
+ .vsync_len = 1,
+ .xres = 800,
+ .yres = 480,
+ .refresh = 60,
+ },
+ .max_bpp = 32,
+ .default_bpp = 24,
+};
+
+struct s3c_fb_platdata smdk64x0_lcd_pdata __initdata = {
+ .win[0] = &smdk64x0_fb_win0,
+ .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+ .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+ .setup_gpio = s5p64x0_fb_gpio_setup_24bpp,
+};
+
+/* LCD power controller */
+void smdk64x0_lte480_reset_power(struct plat_lcd_data *pd,
+ unsigned int power)
+{
+ unsigned int cfg;
+ int err;
+
+ if (power) {
+ cfg = readl(S5P64X0_SYS_ID) & 0xf0000;
+ if (cfg == 0x40000) {
+ err = gpio_request(S5P6440_GPN(5), "GPN");
+ if (err) {
+ printk(KERN_ERR "failed to request GPN for lcd
reset\n");
+ return;
+ }
+
+ gpio_direction_output(S5P6440_GPN(5), 1);
+ gpio_set_value(S5P6440_GPN(5), 0);
+ gpio_set_value(S5P6440_GPN(5), 1);
+ gpio_free(S5P6440_GPN(5));
+ } else if (cfg == 0x50000) {
+ err = gpio_request(S5P6450_GPN(5), "GPN");
+ if (err) {
+ printk(KERN_ERR "failed to request GPN for lcd
reset\n");
+ return;
+ }
+
+ gpio_direction_output(S5P6450_GPN(5), 1);
+ gpio_set_value(S5P6450_GPN(5), 0);
+ gpio_set_value(S5P6450_GPN(5), 1);
+ gpio_free(S5P6450_GPN(5));
+ }
+ }
+}
+
+struct plat_lcd_data smdk64x0_lcd_power_data = {
+ .set_power = smdk64x0_lte480_reset_power,
+};
+
+struct platform_device smdk64x0_lcd_lte480wv = {
+ .name = "platform-lcd",
+ .dev = {
+ .parent = &s3c_device_fb.dev,
+ .platform_data = &smdk64x0_lcd_power_data,
+ }
+};
diff --git a/arch/arm/mach-s5p64x0/include/mach/common-fb.h
b/arch/arm/mach-s5p64x0/include/mach/common-fb.h
new file mode 100644
index 0000000..c239623
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/include/mach/common-fb.h
@@ -0,0 +1,26 @@
+/* linux/arch/arm/mach-s5p64x0/include/mach/common-fb.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Includes declarations for variables and functions
+ * needed in order to support framebuffer.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/fb.h>
+#include <linux/platform_device.h>
+
+#include <video/platform_lcd.h>
+
+#include <plat/fb.h>
+
+extern struct s3c_fb_pd_win smdk64x0_fb_win0;
+extern struct s3c_fb_platdata smdk64x0_lcd_pdata;
+extern struct plat_lcd_data smdk64x0_lcd_power_data;
+extern struct platform_device smdk64x0_lcd_lte480wv;
+extern void smdk64x0_lte480_reset_power(struct plat_lcd_data *pd,
+ unsigned int power);
--
1.7.0.4
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