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,
greg.tu@genesyslogic.com.tw, ben.chuang@genesyslogic.com.tw,
Ben Chuang <benchuanggli@gmail.com>
Subject: [RFC PATCH v2 5/6] mmc: sdhci-uhs2: Introduce a uhs2_pre_detect_init function
Date: Thu, 9 Jan 2020 17:15:05 +0800 [thread overview]
Message-ID: <cbbfc14fe23c9cd2541c5307f6a1356332e6bc35.1578560282.git.benchuanggli@gmail.com> (raw)
In-Reply-To: <cover.1578560282.git.benchuanggli@gmail.com>
From: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Introduce a uhs2_pre_detect_init function before detect uhs2 interface.
Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
---
drivers/mmc/host/sdhci-uhs2.c | 3 +++
drivers/mmc/host/sdhci.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/mmc/host/sdhci-uhs2.c b/drivers/mmc/host/sdhci-uhs2.c
index e9c42894185a..9f53b7b938b9 100644
--- a/drivers/mmc/host/sdhci-uhs2.c
+++ b/drivers/mmc/host/sdhci-uhs2.c
@@ -506,6 +506,9 @@ int sdhci_uhs2_do_detect_init(struct sdhci_host *host)
DBG("%s: begin UHS2 init.\n", __func__);
spin_lock_irqsave(&host->lock, flags);
+ if (host->ops && host->ops->uhs2_pre_detect_init)
+ host->ops->uhs2_pre_detect_init(host);
+
if (sdhci_uhs2_interface_detect(host)) {
pr_warn("%s: cannot detect UHS2 interface.\n",
mmc_hostname(host->mmc));
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 7f779ac81931..08ee4c805474 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -906,6 +906,7 @@ struct sdhci_ops {
void (*voltage_switch)(struct sdhci_host *host);
void (*adma_write_desc)(struct sdhci_host *host, void **desc,
dma_addr_t addr, int len, unsigned int cmd);
+ void (*uhs2_pre_detect_init)(struct sdhci_host *host);
void (*uhs2_post_attach_sd)(struct sdhci_host *host);
};
--
2.24.1
next prev parent reply other threads:[~2020-01-09 9:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 9:13 [RFC PATCH v2 0/6] Add support UHS-II for GL9755 Ben Chuang
2020-01-09 9:14 ` [RFC PATCH v2 1/6] mmc: Add UHS-II support in public headers Ben Chuang
2020-01-09 9:14 ` [RFC PATCH v2 2/6] mmc: core: Add UHS-II support in core layer Ben Chuang
2020-01-09 9:14 ` [RFC PATCH v2 3/6] mmc: host: Add UHS-II support in host layer Ben Chuang
2020-03-17 8:17 ` Adrian Hunter
2020-03-18 6:53 ` Ben Chuang
2020-01-09 9:14 ` [RFC PATCH v2 4/6] mmc: uhs2: Introduce a uhs2_post_attach_sd function Ben Chuang
2020-01-09 9:15 ` Ben Chuang [this message]
2020-01-09 9:15 ` [RFC PATCH v2 6/6] mmc: sdhci-pci-gli: Fix power/reset/ZC/timeout for GL9755 UHS-II mode Ben Chuang
2020-01-21 9:36 ` [RFC PATCH v2 0/6] Add support UHS-II for GL9755 Ben Chuang
2020-01-21 12:01 ` Ulf Hansson
2020-01-22 13:36 ` Ben Chuang
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