diff options
| author | Baolin Wang <baolin.wang7@gmail.com> | 2020-04-13 05:46:05 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-28 12:20:59 +0300 |
| commit | 61ab64e2f54f4c607428667f83f411cb659843a3 (patch) | |
| tree | 3020dc34e522ddfee8616cece20da5fa1c55da33 /drivers/mmc/host/sdhci-sprd.c | |
| parent | 48ef8a2a1e5e6a2a189009e880e341ddb452971d (diff) | |
| download | linux-61ab64e2f54f4c607428667f83f411cb659843a3.tar.xz | |
mmc: host: sdhci-sprd: Implement the request_atomic() API
Implement the request_atomic() API for nonremovable cards, that means
we can submit next request in the irq hard handler context to reduce
latency.
Moreover factor out the AUTO CMD23 checking into a separate function
to reduce duplicate code.
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/60142fe6c6c1dbba2696e775564ae2166786f0bc.1586744073.git.baolin.wang7@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-sprd.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-sprd.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c index d10797a8775e..a910cb461ed7 100644 --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -406,7 +406,8 @@ static struct sdhci_ops sdhci_sprd_ops = { .request_done = sdhci_sprd_request_done, }; -static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq) +static void sdhci_sprd_check_auto_cmd23(struct mmc_host *mmc, + struct mmc_request *mrq) { struct sdhci_host *host = mmc_priv(mmc); struct sdhci_sprd_host *sprd_host = TO_SPRD_HOST(host); @@ -422,10 +423,23 @@ static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq) mrq->sbc && (mrq->sbc->arg & SDHCI_SPRD_ARG2_STUFF) && (host->flags & SDHCI_AUTO_CMD23)) host->flags &= ~SDHCI_AUTO_CMD23; +} + +static void sdhci_sprd_request(struct mmc_host *mmc, struct mmc_request *mrq) +{ + sdhci_sprd_check_auto_cmd23(mmc, mrq); sdhci_request(mmc, mrq); } +static int sdhci_sprd_request_atomic(struct mmc_host *mmc, + struct mmc_request *mrq) +{ + sdhci_sprd_check_auto_cmd23(mmc, mrq); + + return sdhci_request_atomic(mmc, mrq); +} + static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios) { struct sdhci_host *host = mmc_priv(mmc); @@ -562,6 +576,11 @@ static int sdhci_sprd_probe(struct platform_device *pdev) if (ret) goto pltfm_free; + if (!mmc_card_is_removable(host->mmc)) + host->mmc_host_ops.request_atomic = sdhci_sprd_request_atomic; + else + host->always_defer_done = true; + sprd_host = TO_SPRD_HOST(host); sdhci_sprd_phy_param_parse(sprd_host, pdev->dev.of_node); @@ -655,8 +674,6 @@ static int sdhci_sprd_probe(struct platform_device *pdev) if (ret) goto err_cleanup_host; - host->always_defer_done = true; - ret = __sdhci_add_host(host); if (ret) goto err_cleanup_host; |