[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <cover.1585896945.git.baolin.wang7@gmail.com>
Date: Fri, 3 Apr 2020 15:05:25 +0800
From: Baolin Wang <baolin.wang7@...il.com>
To: adrian.hunter@...el.com, ulf.hansson@...aro.org
Cc: orsonzhai@...il.com, zhang.lyra@...il.com, baolin.wang7@...il.com,
arnd@...db.de, linux-mmc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v4 0/3] Introduce the request_atomic() for the host
This patch set introduces a new request_atomic() interface for the
MMC host controller, which is used to submit a request to host in
the atomic context, such as in the irq hard handler, to reduce the
request latency.
Any comments are welcome. Thanks.
Changes from v3:
- Move patch 3 of V3 patch set into patch 1.
- Add a warning for unexpected return value of request_atomic().
- Remove redundant checking of ops->request().
Changes from v2:
- Return busy flag if encountering unusual card busy state
instead of polling in interrupt context.
- Add a work for HSQ to try again in non-atomic context if the host
returns busy flag.
Changes from v1:
- Re-split the changes to make them more clear suggested by Ulf.
- Factor out the auto CMD23 checking into a separate function.
Baolin Wang (3):
mmc: host: Introduce the request_atomic() for the host
mmc: host: sdhci: Implement the request_atomic() API
mmc: host: sdhci-sprd: Implement the request_atomic() API
drivers/mmc/host/mmc_hsq.c | 29 ++++++++++++++++++-
drivers/mmc/host/mmc_hsq.h | 1 +
drivers/mmc/host/sdhci-sprd.c | 23 +++++++++++++--
drivers/mmc/host/sdhci.c | 65 ++++++++++++++++++++++++++++++++-----------
drivers/mmc/host/sdhci.h | 4 ++-
include/linux/mmc/host.h | 3 ++
6 files changed, 103 insertions(+), 22 deletions(-)
--
1.9.1
Powered by blists - more mailing lists