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			66 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From 666bdfc027cde41a171862dc698987a378c8b66a Mon Sep 17 00:00:00 2001
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| From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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| Date: Mon, 9 Feb 2015 18:00:42 +0100
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| Subject: [PATCH RFC] bcma: use two different initcalls if built-in
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| MIME-Version: 1.0
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| Content-Type: text/plain; charset=UTF-8
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| Content-Transfer-Encoding: 8bit
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| 
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| This is needed as we can't initialize bus during fs_initcall.
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| Initialization requires SPROM which depends on NVRAM which depends on
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| mtd. Since mtd, spi, nand, spi-nor use standard module_init, we have to
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| do the same in bcma.
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| Without this we'll try to initialize SPROM without having a ready SPROM
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| proviver registered using bcma_arch_register_fallback_sprom.
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| 
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| Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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| ---
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| While this patch seems to work and I can compile bcma as built-in and
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| module, I'm not too proud of it. I don't really like these #if(n)def
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| tricks and I'm afraid bcma_modinit may be called even if
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| bcma_modinit_early failed.
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| 
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| Do you see any better idea of solving this?
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| ---
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|  drivers/bcma/main.c | 16 ++++++++++++++--
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|  1 file changed, 14 insertions(+), 2 deletions(-)
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| 
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| --- a/drivers/bcma/main.c
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| +++ b/drivers/bcma/main.c
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| @@ -637,13 +637,25 @@ static int bcma_device_uevent(struct dev
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|  			      core->id.rev, core->id.class);
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|  }
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|  
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| +/* Bus has to be registered early, before any bcma driver */
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| +static int __init bcma_modinit_early(void)
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| +{
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| +	return bus_register(&bcma_bus_type);
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| +}
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| +#ifndef MODULE
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| +fs_initcall(bcma_modinit_early);
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| +#endif
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| +
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| +/* Initialization has to be done later with SPI/mtd/NAND/SPROM available */
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|  static int __init bcma_modinit(void)
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|  {
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|  	int err;
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|  
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| -	err = bus_register(&bcma_bus_type);
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| +#ifdef MODULE
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| +	err = bcma_modinit_early();
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|  	if (err)
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|  		return err;
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| +#endif
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|  
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|  	err = bcma_host_soc_register_driver();
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|  	if (err) {
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| @@ -660,7 +672,7 @@ static int __init bcma_modinit(void)
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|  
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|  	return err;
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|  }
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| -fs_initcall(bcma_modinit);
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| +module_init(bcma_modinit);
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|  
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|  static void __exit bcma_modexit(void)
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|  {
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