OMAP1: I2C: fix device initialization

Commit 4d17aeb1c5b2375769446d13012a98e6d265ec13 ("OMAP: I2C: split
device registration and convert OMAP2+ to omap_device") broke I2C on
OMAP1.  The following messages appear at boot:

i2c_omap i2c_omap.1: failure requesting irq 0
i2c_omap: probe of i2c_omap.1 failed with error -22

Investigation revealed that a chunk of code is missing from the
original plat-omap/i2c.c file which configured the IRQ and base address
for the I2C block on OMAP1.  Upon adding this back, the OMAP1 I2C block
seems to initialize correctly.

Thanks to Cory Maccarrone <darkstar6262@gmail.com> for reporting the bug,
and apologies for the breakage.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Tested-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index a5bff9ce7cbed901c47ce46fc0f1cc7f319591af..a6cf4e94f14c76dbfcd40a68a5c4902af5dcb964 100644 (file)
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -97,10 +97,15 @@ static inline int omap1_i2c_add_bus(int bus_id)
 {
        struct platform_device *pdev;
        struct omap_i2c_bus_platform_data *pdata;
+       struct resource *res;
 
        omap1_i2c_mux_pins(bus_id);
 
        pdev = &omap_i2c_devices[bus_id - 1];
+       res = pdev->resource;
+       res[0].start = OMAP1_I2C_BASE;
+       res[0].end = res[0].start + OMAP_I2C_SIZE;
+       res[1].start = INT_I2C;
        pdata = &i2c_pdata[bus_id - 1];
 
        return platform_device_register(pdev);