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@@ -1,191 +0,0 @@
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-From 4e32024cbb14230af3048e249e84f8c2b25ce45a Mon Sep 17 00:00:00 2001
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-From: Phil Elwell <[email protected]>
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-Date: Thu, 28 Oct 2021 15:03:16 +0100
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-Subject: [PATCH] brcmfmac: Read alternative firmware names from DT
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-
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-Add the ability to load the names of alternative firmwares from the
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-Device Tree node. This permits separate firmwares for 43436s and 43438
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-and allows downstream firmwares to coexist with upstream.
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-
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-Signed-off-by: Phil Elwell <[email protected]>
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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 | 47 +++++++++++++++++--
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- 3 files changed, 87 insertions(+), 3 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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-@@ -11,6 +11,7 @@
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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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-@@ -175,3 +176,38 @@ 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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-@@ -5,9 +5,20 @@
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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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-+#ifdef CPTCFG_BRCMFMAC_SDIO
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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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-+#endif
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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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-+#ifdef CPTCFG_BRCMFMAC_SDIO
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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
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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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-@@ -35,6 +35,7 @@
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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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-@@ -632,7 +633,7 @@ MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "b
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- /* per-board firmware binaries */
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- MODULE_FIRMWARE(BRCMF_FW_DEFAULT_PATH "brcmfmac*-sdio.*.bin");
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-
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--static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = {
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-+static const struct brcmf_firmware_mapping sdio_fwnames[] = {
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- BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
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- BRCMF_FW_ENTRY(BRCM_CC_43241_CHIP_ID, 0x0000001F, 43241B0),
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- BRCMF_FW_ENTRY(BRCM_CC_43241_CHIP_ID, 0x00000020, 43241B4),
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-@@ -660,6 +661,9 @@ static const struct brcmf_firmware_mappi
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- BRCMF_FW_ENTRY(CY_CC_43752_CHIP_ID, 0xFFFFFFFF, 43752)
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- };
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-
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-+static const struct brcmf_firmware_mapping *brcmf_sdio_fwnames = sdio_fwnames;
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-+static u32 brcmf_sdio_fwnames_count = ARRAY_SIZE(sdio_fwnames);
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-+
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- #define TXCTL_CREDITS 2
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-
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- static void pkt_align(struct sk_buff *p, int len, int align)
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-@@ -4201,6 +4205,9 @@ static const struct brcmf_bus_ops brcmf_
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- #define BRCMF_SDIO_FW_NVRAM 1
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- #define BRCMF_SDIO_FW_CLM 2
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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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-+
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- static void brcmf_sdio_firmware_callback(struct device *dev, int err,
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- struct brcmf_fw_request *fwreq)
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- {
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-@@ -4216,6 +4223,22 @@ static void brcmf_sdio_firmware_callback
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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 && brcmf_sdio_fwnames != sdio_fwnames) {
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-+ /* Try again with the standard firmware names */
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-+ brcmf_sdio_fwnames = sdio_fwnames;
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-+ brcmf_sdio_fwnames_count = ARRAY_SIZE(sdio_fwnames);
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-+ kfree(fwreq);
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-+ fwreq = brcmf_sdio_prepare_fw_request(bus);
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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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-+ err = brcmf_fw_get_firmwares(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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- if (err)
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- goto fail;
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-
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-@@ -4426,7 +4449,7 @@ brcmf_sdio_prepare_fw_request(struct brc
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-
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- fwreq = brcmf_fw_alloc_request(bus->ci->chip, bus->ci->chiprev,
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- brcmf_sdio_fwnames,
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-- ARRAY_SIZE(brcmf_sdio_fwnames),
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-+ brcmf_sdio_fwnames_count,
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- fwnames, ARRAY_SIZE(fwnames));
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- if (!fwreq)
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- return NULL;
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-@@ -4446,6 +4469,9 @@ struct brcmf_sdio *brcmf_sdio_probe(stru
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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, *fwnames = NULL;
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-+ const int fwname_size = sizeof(struct brcmf_firmware_mapping);
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-+ u32 of_fw_count;
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-
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- brcmf_dbg(TRACE, "Enter\n");
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-
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-@@ -4528,6 +4554,21 @@ 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_fw_count);
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-+ if (of_fwnames)
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-+ fwnames = devm_kcalloc(sdiodev->dev,
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-+ of_fw_count + brcmf_sdio_fwnames_count,
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-+ fwname_size, GFP_KERNEL);
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-+
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-+ if (fwnames) {
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-+ /* The array is scanned in order, so overrides come first */
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-+ memcpy(fwnames, of_fwnames, of_fw_count * fwname_size);
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-+ memcpy(fwnames + of_fw_count, sdio_fwnames,
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-+ brcmf_sdio_fwnames_count * fwname_size);
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-+ brcmf_sdio_fwnames = fwnames;
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-+ brcmf_sdio_fwnames_count += of_fw_count;
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-+ }
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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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