On Tue, Oct 16, 2012 at 8:53 PM, Sebastien Guiriec <s-guiriec@xxxxxx> wrote: > Some GPIO expanders need some early pin control muxing. Due to > legacy boards sometimes the driver uses subsys_initcall instead of > module_init. This patch takes advantage of defer probe feature > and pin control in order to wait until pin control probing before > GPIO driver probing. It has been tested on OMAP5 board with TCA6424 > driver. > > log: > > [0.482299] omap_i2c i2c.15: could not find pctldev for node /ocp/pinmux@4a00 > 2840/pinmux_i2c5_pins, deferring probe > [0.482330] platform i2c.15: Driver omap_i2c requests probe deferral > [0.484466] Advanced Linux Sound Architecture Driver Initialized. > > [4.746917] omap_i2c i2c.15: bus 4 rev2.4.0 at 100 kHz > [4.755279] gpiochip_find_base: found new base at 477 > [4.761169] gpiochip_add: registered GPIOs 477 to 500 on device: tca6424a > Thanks, Acked-by: Shubhrajyoti D <shubhrajyoti@xxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
