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ARM: OMAP2+: gpmc-smsc911x: only register regulator for first instance

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commit e4b0b2cbbb (ARM: OMAP2+: gpmc-smsc911x: add required smsc911x
regulators) added regulators which are registered during
gpmc_smsc911x_init().  However, some platforms (OMAP3/Overo) have more
than one instance of the SMSC911x and result in attempting to register
the same regulator more than once which causes a panic().

Fix this by only registering the regulator when the platform_data id
field is zero, indicating its the first instance.

Cc: Matt Porter <mporter@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Kevin Hilman 2012-03-01 12:30:42 -08:00 committed by Tony Lindgren
parent cc4ad9072c
commit bb60424af5
1 changed files with 7 additions and 4 deletions
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11
arch/arm/mach-omap2/gpmc-smsc911x.c
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@ -101,10 +101,13 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *board_data)
gpmc_cfg = board_data;
ret = platform_device_register(&gpmc_smsc911x_regulator);
if (ret < 0) {
pr_err("Unable to register smsc911x regulators: %d\n", ret);
return;
if (!gpmc_cfg->id) {
ret = platform_device_register(&gpmc_smsc911x_regulator);
if (ret < 0) {
pr_err("Unable to register smsc911x regulators: %d\n",
ret);
return;
}
}
if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) {