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sunxi: video: Add support for LCD panels which need to be configured via i2c

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This commits adds support for configuring a a bitbang i2c controller, which
is used on some boards to configure the LCD panel (via i2c).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede
2015-02-16 17:23:25 +01:00
parent 242e3d893d
commit 55410089cb
3 changed files with 50 additions and 0 deletions
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16
include/configs/sunxi-common.h
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@@ -183,6 +183,22 @@
#define CONFIG_SYS_I2C_MVTWSI
#define CONFIG_SYS_I2C_SPEED 400000
#define CONFIG_SYS_I2C_SLAVE 0x7f
#if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD)
#define CONFIG_SYS_I2C_SOFT
#define CONFIG_SYS_I2C_SOFT_SPEED 50000
#define CONFIG_SYS_I2C_SOFT_SLAVE 0x00
#define CONFIG_VIDEO_LCD_I2C_BUS 0 /* The lcd panel soft i2c is bus 0 */
#define CONFIG_SYS_SPD_BUS_NUM 1 /* And the axp209 i2c bus is bus 1 */
/* We use pin names in Kconfig and sunxi_name_to_gpio() */
#define CONFIG_SOFT_I2C_GPIO_SDA soft_i2c_gpio_sda
#define CONFIG_SOFT_I2C_GPIO_SCL soft_i2c_gpio_scl
#ifndef __ASSEMBLY__
extern int soft_i2c_gpio_sda;
extern int soft_i2c_gpio_scl;
#endif
#endif
#define CONFIG_CMD_I2C
/* PMU */