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			186 lines
		
	
	
	
		
			5.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			186 lines
		
	
	
	
		
			5.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From c41443ed9e433b74ad4db7fdccb002431583f264 Mon Sep 17 00:00:00 2001
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| From: Phil Elwell <phil@raspberrypi.com>
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| Date: Mon, 12 Jun 2023 15:22:20 +0100
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| Subject: [PATCH] Revert "brcmfmac: Read alternative firmware names from DT"
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| 
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| This reverts commit 5dba6ec6f4f2ac9ed8556116481b107e50e15251.
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| 
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| With careful use of qualified firmware names there is no need for the
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| ability to override the device names based on Device Tree properties.
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| 
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| Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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| ---
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|  .../wireless/broadcom/brcm80211/brcmfmac/of.c | 36 -------------
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|  .../wireless/broadcom/brcm80211/brcmfmac/of.h |  7 ---
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|  .../broadcom/brcm80211/brcmfmac/sdio.c        | 52 ++-----------------
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|  3 files changed, 4 insertions(+), 91 deletions(-)
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| 
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| --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
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| +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
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| @@ -11,7 +11,6 @@
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|  #include "debug.h"
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|  #include "core.h"
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|  #include "common.h"
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| -#include "firmware.h"
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|  #include "of.h"
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|  
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|  static int brcmf_of_get_country_codes(struct device *dev,
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| @@ -137,38 +136,3 @@ void brcmf_of_probe(struct device *dev,
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|  	sdio->oob_irq_nr = irq;
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|  	sdio->oob_irq_flags = irqf;
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|  }
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| -
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| -struct brcmf_firmware_mapping *
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| -brcmf_of_fwnames(struct device *dev, u32 *fwname_count)
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| -{
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| -	struct device_node *np = dev->of_node;
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| -	struct brcmf_firmware_mapping *fwnames;
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| -	struct device_node *map_np, *fw_np;
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| -	int of_count;
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| -	int count = 0;
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| -
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| -	map_np = of_get_child_by_name(np, "firmwares");
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| -	of_count = of_get_child_count(map_np);
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| -	if (!of_count)
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| -		return NULL;
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| -
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| -	fwnames = devm_kcalloc(dev, of_count,
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| -			       sizeof(struct brcmf_firmware_mapping),
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| -			       GFP_KERNEL);
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| -
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| -	for_each_child_of_node(map_np, fw_np)
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| -	{
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| -		struct brcmf_firmware_mapping *cur = &fwnames[count];
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| -
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| -		if (of_property_read_u32(fw_np, "chipid", &cur->chipid) ||
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| -		    of_property_read_u32(fw_np, "revmask", &cur->revmask))
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| -			continue;
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| -		cur->fw_base = of_get_property(fw_np, "fw_base", NULL);
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| -		if (cur->fw_base)
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| -			count++;
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| -	}
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| -
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| -	*fwname_count = count;
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| -
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| -	return count ? fwnames : NULL;
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| -}
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| --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.h
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| +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.h
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| @@ -5,16 +5,9 @@
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|  #ifdef CONFIG_OF
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|  void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
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|  		    struct brcmf_mp_device *settings);
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| -struct brcmf_firmware_mapping *
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| -brcmf_of_fwnames(struct device *dev, u32 *map_count);
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|  #else
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|  static void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
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|  			   struct brcmf_mp_device *settings)
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|  {
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|  }
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| -static struct brcmf_firmware_mapping *
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| -brcmf_of_fwnames(struct device *dev, u32 *map_count)
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| -{
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| -	return NULL;
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| -}
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|  #endif /* CONFIG_OF */
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| --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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| +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
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| @@ -35,7 +35,6 @@
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|  #include "core.h"
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|  #include "common.h"
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|  #include "bcdc.h"
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| -#include "of.h"
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|  
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|  #define DCMD_RESP_TIMEOUT	msecs_to_jiffies(2500)
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|  #define CTL_DONE_TIMEOUT	msecs_to_jiffies(2500)
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| @@ -4409,9 +4408,7 @@ fail:
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|  }
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|  
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|  static struct brcmf_fw_request *
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| -brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus,
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| -			      const struct brcmf_firmware_mapping *fwmap,
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| -			      int fwmap_count)
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| +brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
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|  {
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|  	struct brcmf_fw_request *fwreq;
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|  	struct brcmf_fw_name fwnames[] = {
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| @@ -4421,7 +4418,8 @@ brcmf_sdio_prepare_fw_request(struct brc
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|  	};
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|  
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|  	fwreq = brcmf_fw_alloc_request(bus->ci->chip, bus->ci->chiprev,
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| -				       fwmap, fwmap_count,
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| +				       brcmf_sdio_fwnames,
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| +				       ARRAY_SIZE(brcmf_sdio_fwnames),
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|  				       fwnames, ARRAY_SIZE(fwnames));
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|  	if (!fwreq)
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|  		return NULL;
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| @@ -4435,44 +4433,12 @@ brcmf_sdio_prepare_fw_request(struct brc
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|  	return fwreq;
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|  }
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|  
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| -static void brcmf_sdio_of_firmware_callback(struct device *dev, int err,
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| -					    struct brcmf_fw_request *fwreq)
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| -{
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| -	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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| -	struct brcmf_sdio_dev *sdiod = bus_if->bus_priv.sdio;
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| -	struct brcmf_sdio *bus = sdiod->bus;
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| -
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| -	brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err);
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| -
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| -	if (err) {
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| -		/* Try again with the standard firmware names */
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| -		kfree(fwreq);
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| -		fwreq = brcmf_sdio_prepare_fw_request(bus,
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| -						      brcmf_sdio_fwnames,
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| -						      ARRAY_SIZE(brcmf_sdio_fwnames));
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| -		if (!fwreq) {
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| -			err = -ENOMEM;
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| -			goto fail;
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| -		}
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| -
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| -		err = brcmf_fw_get_firmwares(sdiod->dev, fwreq,
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| -				     brcmf_sdio_firmware_callback);
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| -		if (!err)
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| -			return;
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| -	}
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| -
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| -fail:
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| -	brcmf_sdio_firmware_callback(dev, err, fwreq);
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| -}
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| -
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|  struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
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|  {
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|  	int ret;
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|  	struct brcmf_sdio *bus;
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|  	struct workqueue_struct *wq;
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|  	struct brcmf_fw_request *fwreq;
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| -	struct brcmf_firmware_mapping *of_fwnames;
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| -	u32 of_fwcount;
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|  
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|  	brcmf_dbg(TRACE, "Enter\n");
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|  
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| @@ -4555,23 +4521,13 @@ struct brcmf_sdio *brcmf_sdio_probe(stru
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|  
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|  	brcmf_dbg(INFO, "completed!!\n");
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|  
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| -	of_fwnames = brcmf_of_fwnames(sdiodev->dev, &of_fwcount);
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| -
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| -	if (of_fwnames)
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| -		fwreq = brcmf_sdio_prepare_fw_request(bus, of_fwnames,
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| -						      of_fwcount);
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| -	else
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| -		fwreq = brcmf_sdio_prepare_fw_request(bus, brcmf_sdio_fwnames,
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| -						      ARRAY_SIZE(brcmf_sdio_fwnames));
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| -
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| +	fwreq = brcmf_sdio_prepare_fw_request(bus);
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|  	if (!fwreq) {
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|  		ret = -ENOMEM;
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|  		goto fail;
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|  	}
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|  
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|  	ret = brcmf_fw_get_firmwares(sdiodev->dev, fwreq,
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| -				     of_fwnames ?
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| -				     brcmf_sdio_of_firmware_callback :
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|  				     brcmf_sdio_firmware_callback);
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|  	if (ret != 0) {
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|  		brcmf_err("async firmware request failed: %d\n", ret);
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