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[60.251.58.169]) by smtp.gmail.com with ESMTPSA id x65sm7380180pfb.171.2020.01.09.01.14.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 01:14:41 -0800 (PST) From: Ben Chuang 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 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 Message-Id: X-Mailer: git-send-email 2.24.1 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Ben Chuang Introduce a uhs2_pre_detect_init function before detect uhs2 interface. Signed-off-by: Ben Chuang --- 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); };