On Mon, 13 Apr 2020 at 04:46, Baolin Wang <baolin.wang7@xxxxxxxxx> wrote: > > 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. > > Note, this patch set is based on Adrian's patch set: > https://www.spinics.net/lists/linux-mmc/msg58529.html > > Any comments are welcome. Thanks. > > Changes from v4: > - Remove redundant checking when warning the return value of request_atomic(). > - Add acked tag from Adrian for patch 1. > - Re-implement the request_atomic() based on the Adrian's patch set. > > 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 | 34 ++++++++++++++++++++++++++++++++++ > drivers/mmc/host/sdhci.h | 1 + > include/linux/mmc/host.h | 3 +++ > 6 files changed, 87 insertions(+), 4 deletions(-) > > -- > 2.17.1 > Applied for next, thanks! Kind regards Uffe
