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ANDROID: GKI: add vendor hook to support emmc FFU

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We need this vendor hook to support emmc FFU. Avoid init card fail
due to changes in PRV of cid in the new firmware.

Bug: 241854943
Change-Id: Ib92105264daabedcb68aa99d0b4c0d45b5b741b1
Signed-off-by: Zhenxiong Lai <zhenxiong.lai@unisoc.com>
This commit is contained in:
Zhenxiong Lai
2022-08-10 11:18:04 +08:00
committed by Treehugger Robot
parent 64ae41d79b
commit 6349c3bbd5
3 changed files with 5 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@@ -431,3 +431,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_add_page_to_lrulist);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_del_page_from_lrulist);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_page_should_be_protected);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mark_page_accessed);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmc_ffu_update_cid);

1
drivers/mmc/core/mmc.c
View File

@@ -1635,6 +1635,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
goto err;
if (oldcard) {
trace_android_vh_mmc_ffu_update_cid(host, oldcard, cid);
if (memcmp(cid, oldcard->raw_cid, sizeof(cid)) != 0) {
pr_debug("%s: Perhaps the card was replaced\n",
mmc_hostname(host));

3
include/trace/hooks/mmc.h
View File

@@ -44,6 +44,9 @@ DECLARE_HOOK(android_vh_sdhci_get_cd,
DECLARE_HOOK(android_vh_mmc_gpio_cd_irqt,
TP_PROTO(struct mmc_host *host, bool *allow),
TP_ARGS(host, allow));
DECLARE_HOOK(android_vh_mmc_ffu_update_cid,
TP_PROTO(struct mmc_host *host, struct mmc_card *card, u32 *cid),
TP_ARGS(host, card, cid));
DECLARE_RESTRICTED_HOOK(android_rvh_mmc_cache_card_properties,
TP_PROTO(struct mmc_host *host),