diff options
| author | Arend van Spriel <arend.vanspriel@broadcom.com> | 2021-07-28 23:50:31 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-08-21 18:49:03 +0300 |
| commit | 2c4fa29eceb3167470a1d391c94ad2f0b87b2af2 (patch) | |
| tree | 1e4475112f5564ff3a74d0e430c7d2b81db0d37b /drivers/net/wireless/broadcom/brcm80211 | |
| parent | c2dac3d2d3f1135c7a9b90cb014a32ff739edf44 (diff) | |
| download | linux-2c4fa29eceb3167470a1d391c94ad2f0b87b2af2.tar.xz | |
brcmfmac: use different error value for invalid ram base address
The function brcmf_chip_tcm_rambase() returns 0 as invalid ram base
address. However, upcoming chips have ram base address starting at
zero so we have to find a more appropriate invalid value to return.
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1627505434-9544-2-git-send-email-arend.vanspriel@broadcom.com
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c index 45037decba40..85653a95a60c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c @@ -139,6 +139,8 @@ struct sbconfig { u32 sbidhigh; /* identification */ }; +#define INVALID_RAMBASE ((u32)(~0)) + /* bankidx and bankinfo reg defines corerev >= 8 */ #define SOCRAM_BANKINFO_RETNTRAM_MASK 0x00010000 #define SOCRAM_BANKINFO_SZMASK 0x0000007f @@ -731,7 +733,7 @@ static u32 brcmf_chip_tcm_rambase(struct brcmf_chip_priv *ci) brcmf_err("unknown chip: %s\n", ci->pub.name); break; } - return 0; + return INVALID_RAMBASE; } int brcmf_chip_get_raminfo(struct brcmf_chip *pub) @@ -746,7 +748,7 @@ int brcmf_chip_get_raminfo(struct brcmf_chip *pub) mem_core = container_of(mem, struct brcmf_core_priv, pub); ci->pub.ramsize = brcmf_chip_tcm_ramsize(mem_core); ci->pub.rambase = brcmf_chip_tcm_rambase(ci); - if (!ci->pub.rambase) { + if (ci->pub.rambase == INVALID_RAMBASE) { brcmf_err("RAM base not provided with ARM CR4 core\n"); return -EINVAL; } @@ -757,7 +759,7 @@ int brcmf_chip_get_raminfo(struct brcmf_chip *pub) pub); ci->pub.ramsize = brcmf_chip_sysmem_ramsize(mem_core); ci->pub.rambase = brcmf_chip_tcm_rambase(ci); - if (!ci->pub.rambase) { + if (ci->pub.rambase == INVALID_RAMBASE) { brcmf_err("RAM base not provided with ARM CA7 core\n"); return -EINVAL; } |