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mfd: twl4030-power: Add support for board specific configuration

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With the recommended twl4030 configuration added, we can now add
board specific changes as modifications to the recommended
configuration.

Note that the data is private to this driver, and the data must
always have a NULL resource in the sentinel.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Tony Lindgren 2014-05-20 11:17:54 -07:00 committed by Lee Jones
parent 76714d2c09
commit 482e7db160
2 changed files with 22 additions and 0 deletions
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21
drivers/mfd/twl4030-power.c
View File

@ -567,13 +567,34 @@ twl4030_power_configure_scripts(const struct twl4030_power_data *pdata)
return 0;
}
static void twl4030_patch_rconfig(struct twl4030_resconfig *common,
struct twl4030_resconfig *board)
{
while (common->resource) {
struct twl4030_resconfig *b = board;
while (b->resource) {
if (b->resource == common->resource) {
*common = *b;
break;
}
b++;
}
common++;
}
}
static int
twl4030_power_configure_resources(const struct twl4030_power_data *pdata)
{
struct twl4030_resconfig *resconfig = pdata->resource_config;
struct twl4030_resconfig *boardconf = pdata->board_config;
int err;
if (resconfig) {
if (boardconf)
twl4030_patch_rconfig(resconfig, boardconf);
while (resconfig->resource) {
err = twl4030_configure_resource(resconfig);
if (err)

1
include/linux/i2c/twl.h
View File

@ -662,6 +662,7 @@ struct twl4030_power_data {
struct twl4030_script **scripts;
unsigned num;
struct twl4030_resconfig *resource_config;
struct twl4030_resconfig *board_config;
#define TWL4030_RESCONFIG_UNDEF ((u8)-1)
bool use_poweroff; /* Board is wired for TWL poweroff */
};