From 90110e0eab5ac6ab714109ce1fd8873c858dd552 Mon Sep 17 00:00:00 2001 From: Nick Thompson Date: Sat, 12 Dec 2009 12:10:51 -0500 Subject: Davinci: Table driven pinmux configuration Davinci: Table driven pinmux configuration Add code to allow pinmux_config tables to be grouped and configured as a single resource. This removes multiple calls to the pinmux configuration code from board_init and allows pinmuxes to be individually configured and added by data manipulation only. All related #ifdefs can the be removed from board_init code and since the compiler optimises away statics, #ifdefs can be reduced in the data definitions as well. Signed-off-by: Nick Thompson --- board/davinci/common/misc.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'board/davinci/common/misc.c') diff --git a/board/davinci/common/misc.c b/board/davinci/common/misc.c index 9fab76f..25ca326 100644 --- a/board/davinci/common/misc.c +++ b/board/davinci/common/misc.c @@ -155,3 +155,34 @@ int davinci_configure_pin_mux(const struct pinmux_config *pins, return 0; } + +/* + * Configure multiple pinmux resources. + * + * Takes an pinmux_resource array of pinmux_config and pin counts: + * + * const struct pinmux_resource pinmuxes[] = { + * PINMUX_ITEM(uart_pins), + * PINMUX_ITEM(i2c_pins), + * }; + * + * The number of items in the array must be passed (ARRAY_SIZE can provide + * this value conveniently). + * + * Each item entry is configured in the defined order. If configuration + * of any item fails, -1 is returned and none of the following items are + * configured. On success, 0 is returned. + */ +int davinci_configure_pin_mux_items(const struct pinmux_resource *item, + const int n_items) +{ + int i; + + for (i = 0; i < n_items; i++) { + if (davinci_configure_pin_mux(item[i].pins, + item[i].n_pins) != 0) + return -1; + } + + return 0; +} -- cgit v1.1