From bb60424af517d6e6148505fb5ef256caa91b5b43 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 1 Mar 2012 12:30:42 -0800 Subject: [PATCH] ARM: OMAP2+: gpmc-smsc911x: only register regulator for first instance 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 Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/gpmc-smsc911x.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c index bbb870c04a5e..5e5880d6d099 100644 --- a/arch/arm/mach-omap2/gpmc-smsc911x.c +++ b/arch/arm/mach-omap2/gpmc-smsc911x.c @@ -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) { -- 2.34.1