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authorEnric Balletbo i Serra <eballetbo@gmail.com>2010-10-08 10:22:51 -0700
committerTony Lindgren <tony@atomide.com>2010-10-08 10:22:51 -0700
commit91d139cf3630eff73f161494ee0c596472c11fef (patch)
tree5f22ffde4ad8c7f47c887b7e077bf201f10b5fe6 /arch/arm/mach-omap2
parent5a9fcc9980ae741c4657029c7e92d914072f824a (diff)
omap3: Add i2c eeprom driver to read EDID on IGEP v2
Add i2c eeprom driver to access monitor EDID binary information from user space, something that is required by 'decode-edid' and 'parse-edid'. Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/board-igep0020.c33
1 files changed, 24 insertions, 9 deletions
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 22f73b4e0b43..cfd67bf0acd9 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -542,7 +542,7 @@ static struct twl4030_platform_data igep2_twldata = {
};
-static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
+static struct i2c_board_info __initdata igep2_i2c1_boardinfo[] = {
{
I2C_BOARD_INFO("twl4030", 0x48),
.flags = I2C_CLIENT_WAKE,
@@ -551,14 +551,29 @@ static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
},
};
-static int __init igep2_i2c_init(void)
+static struct i2c_board_info __initdata igep2_i2c3_boardinfo[] = {
+ {
+ I2C_BOARD_INFO("eeprom", 0x50),
+ },
+};
+
+static void __init igep2_i2c_init(void)
{
- omap_register_i2c_bus(1, 2600, igep2_i2c_boardinfo,
- ARRAY_SIZE(igep2_i2c_boardinfo));
- /* Bus 3 is attached to the DVI port where devices like the pico DLP
- * projector don't work reliably with 400kHz */
- omap_register_i2c_bus(3, 100, NULL, 0);
- return 0;
+ int ret;
+
+ ret = omap_register_i2c_bus(1, 2600, igep2_i2c1_boardinfo,
+ ARRAY_SIZE(igep2_i2c1_boardinfo));
+ if (ret)
+ pr_warning("IGEP2: Could not register I2C1 bus (%d)\n", ret);
+
+ /*
+ * Bus 3 is attached to the DVI port where devices like the pico DLP
+ * projector don't work reliably with 400kHz
+ */
+ ret = omap_register_i2c_bus(3, 100, igep2_i2c3_boardinfo,
+ ARRAY_SIZE(igep2_i2c3_boardinfo));
+ if (ret)
+ pr_warning("IGEP2: Could not register I2C3 bus (%d)\n", ret);
}
static struct omap_musb_board_data musb_board_data = {
@@ -636,7 +651,7 @@ static void __init igep2_init(void)
/* Get IGEP2 hardware revision */
igep2_get_revision();
-
+ /* Register I2C busses and drivers */
igep2_i2c_init();
platform_add_devices(igep2_devices, ARRAY_SIZE(igep2_devices));
omap_serial_init();