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| author | Paul Walmsley <paul@pwsan.com> | 2010-12-07 04:30:57 +0000 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-12-07 14:39:02 -0800 |
| commit | 00b4ade1f1968b55bb57a91c1f09a40fc33f72a0 (patch) | |
| tree | 735c088094c5bf5be0b2ae4b4cbf34069965553c | |
| parent | 52aa8c539dad56728527de664f368915ff44badf (diff) | |
| download | kernel_samsung_smdk4412-00b4ade1f1968b55bb57a91c1f09a40fc33f72a0.zip kernel_samsung_smdk4412-00b4ade1f1968b55bb57a91c1f09a40fc33f72a0.tar.gz kernel_samsung_smdk4412-00b4ade1f1968b55bb57a91c1f09a40fc33f72a0.tar.bz2 | |
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>
| -rw-r--r-- | arch/arm/plat-omap/i2c.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c index a5bff9c..a6cf4e9 100644 --- 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); |