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| author | Olof Johansson <olof@lixom.net> | 2012-12-12 16:10:45 -0800 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-12-12 16:10:45 -0800 |
| commit | 9c7466b217af784280d9fc841bbd559ef3bf33e9 (patch) | |
| tree | c21ee243e48912201b4041fbf3f9bd9165603bd8 /arch/arm/mach-omap2/i2c.c | |
| parent | 4a76411ea3f1da9032e031f8fff8894b97d141b2 (diff) | |
| parent | 48d224d1efec98b0b78e511150b4f5752beceb7c (diff) | |
ARM: arm-soc: Merge branch 'next/pm2' into next/pm
Another smaller branch merged into next/pm before pull request.
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-omap2/i2c.c')
| -rw-r--r-- | arch/arm/mach-omap2/i2c.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c index be092e8e5d8..fbb9b152cd5 100644 --- a/arch/arm/mach-omap2/i2c.c +++ b/arch/arm/mach-omap2/i2c.c @@ -107,6 +107,19 @@ int omap_i2c_reset(struct omap_hwmod *oh) return 0; } +static int __init omap_i2c_nr_ports(void) +{ + int ports = 0; + + if (cpu_is_omap24xx()) + ports = 2; + else if (cpu_is_omap34xx()) + ports = 3; + else if (cpu_is_omap44xx()) + ports = 4; + return ports; +} + static const char name[] = "omap_i2c"; int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata, @@ -119,6 +132,9 @@ int __init omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata, struct omap_i2c_bus_platform_data *pdata; struct omap_i2c_dev_attr *dev_attr; + if (bus_id > omap_i2c_nr_ports()) + return -EINVAL; + omap2_i2c_mux_pins(bus_id); l = snprintf(oh_name, MAX_OMAP_I2C_HWMOD_NAME_LEN, "i2c%d", bus_id); |