From: Ben Chuang <benchuanggli@gmail.com>
To: adrian.hunter@intel.com, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
ben.chuang@genesyslogic.com.tw, takahiro.akashi@linaro.org,
greg.tu@genesyslogic.com.tw, Ben Chuang <benchuanggli@gmail.com>
Subject: [RFC PATCH V3 19/21] mmc: core: add post-mmc_attach_sd hook
Date: Fri, 10 Jul 2020 19:12:47 +0800 [thread overview]
Message-ID: <20200710111247.29937-1-benchuanggli@gmail.com> (raw)
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
This "post" hook for mmc_attach_sd() will be required to enable UHS-II
support, at least, on GL9755.
Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
drivers/mmc/core/sd.c | 6 ++++++
include/linux/mmc/host.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index c5b071bd98b3..fd4cae4ed747 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1381,6 +1381,12 @@ int mmc_attach_sd(struct mmc_host *host)
goto remove_card;
mmc_claim_host(host);
+
+ /* TODO: Is this the right place? */
+ if ((host->flags & MMC_UHS2_INITIALIZED) &&
+ host->ops->uhs2_post_attach_sd)
+ host->ops->uhs2_post_attach_sd(host);
+
return 0;
remove_card:
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 56bdb153ef16..e61e0ae62cff 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -180,6 +180,7 @@ struct mmc_host_ops {
int (*uhs2_set_reg)(struct mmc_host *host, enum uhs2_act act);
void (*uhs2_disable_clk)(struct mmc_host *host);
void (*uhs2_enable_clk)(struct mmc_host *host);
+ void (*uhs2_post_attach_sd)(struct mmc_host *host);
};
struct mmc_cqe_ops {
--
2.27.0
reply other threads:[~2020-07-10 11:12 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200710111247.29937-1-benchuanggli@gmail.com \
--to=benchuanggli@gmail.com \
--cc=adrian.hunter@intel.com \
--cc=ben.chuang@genesyslogic.com.tw \
--cc=greg.tu@genesyslogic.com.tw \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=takahiro.akashi@linaro.org \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).