mac80211: brcmfmac: add early (& hacky) patch for storing country codes

This allows some basic region switching on Netgear R8000. More devices &
codes may be added. Ideally it should be converted into DT info & patch.

Signed-off-by: Rafał Miłecki <[email protected]>

package/kernel/mac80211/patches/863-brcmfmac-add-in-driver-tables-with-country-codes.patch

@@ -0,0 +1,60 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Subject: [PATCH] brcmfmac: add in-driver tables with country codes
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This adds early support for changing region. Ideally this data should
+be stored in DT as all these mappings are devices specific.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+---
+
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
+@@ -23,6 +23,36 @@
+ #include "common.h"
+ #include "of.h"
+ 
++/* TODO: FIXME: Use DT */
++static void brcmf_of_probe_cc(struct device *dev,
++			      struct brcmf_mp_device *settings)
++{
++	static struct brcmfmac_pd_cc_entry netgear_r8000_cc_ent[] = {
++		{ "JP", "JP", 78 },
++		{ "US", "Q2", 86 },
++	};
++	struct brcmfmac_pd_cc_entry *cc_ent;
++	int table_size;
++
++	if (of_machine_is_compatible("netgear,r8000")) {
++		cc_ent = netgear_r8000_cc_ent;
++		table_size = ARRAY_SIZE(netgear_r8000_cc_ent);
++	}
++
++	if (cc_ent && table_size) {
++		struct brcmfmac_pd_cc *cc;
++		size_t memsize;
++
++		memsize = table_size * sizeof(struct brcmfmac_pd_cc_entry);
++		cc = devm_kzalloc(dev, sizeof(*cc) + memsize, GFP_KERNEL);
++		if (!cc)
++			return;
++		cc->table_size = table_size;
++		memcpy(cc->table, cc_ent, memsize);
++		settings->country_codes = cc;
++	}
++}
++
+ void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
+ 		    struct brcmf_mp_device *settings)
+ {
+@@ -32,6 +62,8 @@ void brcmf_of_probe(struct device *dev,
+ 	u32 irqf;
+ 	u32 val;
+ 
++	brcmf_of_probe_cc(dev, settings);
++
+ 	if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
+ 	    !of_device_is_compatible(np, "brcm,bcm4329-fmac"))
+ 		return;