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From: Jason Lai <jasonlai.genesyslogic@gmail.com>
To: ulf.hansson@linaro.org, adrian.hunter@intel.com
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
	ben.chuang@genesyslogic.com.tw, greg.tu@genesyslogic.com.tw,
	jason.lai@genesyslogiv.com.tw,
	AKASHI Takahiro <takahiro.akashi@linaro.org>,
	Jason Lai <jason.lai@genesyslogic.com.tw>
Subject: [RFC PATCH v3.2 28/29] mmc: Remove duplicate code.
Date: Thu, 22 Jul 2021 12:01:23 +0800	[thread overview]
Message-ID: <20210722040124.7573-28-jasonlai.genesyslogic@gmail.com> (raw)
In-Reply-To: <20210722040124.7573-1-jasonlai.genesyslogic@gmail.com>

1. core.c : Use tab to replace space.
2. sdhci.c: Remove code which had been moved into sdhci_request_done_dma()

Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw>
---
 drivers/mmc/core/core.c  |  2 +-
 drivers/mmc/host/sdhci.c | 74 ----------------------------------------
 2 files changed, 1 insertion(+), 75 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index d53722c21f29..2624d7b30cd2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2248,7 +2248,7 @@ void mmc_rescan(struct work_struct *work)
 	if (mmc_card_sd_express(host)) {
 		mmc_release_host(host);
 		goto out;
-        }
+	}

 	if (host->caps & MMC_CAP_UHS2) {
 		/*
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 5356cd5f4907..ae8e3b5a38bf 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -3155,83 +3155,9 @@ bool sdhci_request_done(struct sdhci_host *host)
 			sdhci_set_mrq_done(host, mrq);
 		}

-		if (data && data->host_cookie == COOKIE_MAPPED) {
-			if (host->bounce_buffer) {
-				/*
-				 * On reads, copy the bounced data into the
-				 * sglist
-				 */
-				if (mmc_get_dma_dir(data) == DMA_FROM_DEVICE) {
-					unsigned int length = data->bytes_xfered;
-
-					if (length > host->bounce_buffer_size) {
-						pr_err("%s: bounce buffer is %u bytes but DMA claims to have transferred %u bytes\n",
-						       mmc_hostname(host->mmc),
-						       host->bounce_buffer_size,
-						       data->bytes_xfered);
-						/* Cap it down and continue */
-						length = host->bounce_buffer_size;
-					}
-					dma_sync_single_for_cpu(
-						mmc_dev(host->mmc),
-						host->bounce_addr,
-						host->bounce_buffer_size,
-						DMA_FROM_DEVICE);
-					sg_copy_from_buffer(data->sg,
-						data->sg_len,
-						host->bounce_buffer,
-						length);
-				} else {
-					/* No copying, just switch ownership */
-					dma_sync_single_for_cpu(
-						mmc_dev(host->mmc),
-						host->bounce_addr,
-						host->bounce_buffer_size,
-						mmc_get_dma_dir(data));
-				}
-			} else {
-				/* Unmap the raw data */
-				dma_unmap_sg(mmc_dev(host->mmc), data->sg,
-					     data->sg_len,
-					     mmc_get_dma_dir(data));
-			}
-			data->host_cookie = COOKIE_UNMAPPED;
-		}
-
 		sdhci_request_done_dma(host, mrq);
 	}

-	/*
-	 * The controller needs a reset of internal state machines
-	 * upon error conditions.
-	 */
-	if (sdhci_needs_reset(host, mrq)) {
-		/*
-		 * Do not finish until command and data lines are available for
-		 * reset. Note there can only be one other mrq, so it cannot
-		 * also be in mrqs_done, otherwise host->cmd and host->data_cmd
-		 * would both be null.
-		 */
-		if (host->cmd || host->data_cmd) {
-			spin_unlock_irqrestore(&host->lock, flags);
-			return true;
-		}
-
-		/* Some controllers need this kick or reset won't work here */
-		if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET)
-			/* This is to force an update */
-			host->ops->set_clock(host, host->clock);
-
-		/*
-		 * Spec says we should do both at the same time, but
-		 * Ricoh controllers do not like that.
-		 */
-		sdhci_do_reset(host, SDHCI_RESET_CMD);
-		sdhci_do_reset(host, SDHCI_RESET_DATA);
-
-		host->pending_reset = false;
-	}
-
 	host->mrqs_done[i] = NULL;

 	spin_unlock_irqrestore(&host->lock, flags);
--
2.32.0


  parent reply	other threads:[~2021-07-22  4:03 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22  4:00 [RFC PATCH v3.2 01/29] mmc: add UHS-II related definitions in public headers Jason Lai
2021-07-22  4:00 ` [RFC PATCH v3.2 02/29] mmc: core: UHS-II support, modify power-up sequence Jason Lai
2021-07-22  4:00 ` [RFC PATCH v3.2 03/29] mmc: core: UHS-II support, skip set_chip_select() Jason Lai
2021-07-22  4:00 ` [RFC PATCH v3.2 04/29] mmc: core: UHS-II support, try to select UHS-II interface Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 05/29] mmc: core: UHS-II support, skip TMODE setup in some cases Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 06/29] mmc: core: UHS-II support, generate UHS-II SD command packet Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 07/29] mmc: core: UHS-II support, set APP_CMD bit if necessary Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 08/29] mmc: sdhci: add a kernel configuration for enabling UHS-II support Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 09/29] mmc: sdhci: add UHS-II related definitions in headers Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 10/29] mmc: sdhci: add UHS-II module Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 11/29] mmc: sdhci-uhs2: dump UHS-II registers Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 12/29] mmc: sdhci-uhs2: add reset function Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 13/29] mmc: sdhci-uhs2: add set_power() to support vdd2 Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 14/29] mmc: sdhci-uhs2: skip signal_voltage_switch() Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 15/29] mmc: sdhci-uhs2: add set_timeout() Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 16/29] mmc: sdhci-uhs2: add set_ios() Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 17/29] mmc: sdhci-uhs2: add detect_init() to detect the interface Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 18/29] mmc: sdhci-uhs2: add clock operations Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 19/29] mmc: sdhci-uhs2: add set_reg() to initialise the interface Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 20/29] mmc: sdhci-uhs2: add request() and others Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 21/29] mmc: sdhci-uhs2: add irq() " Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 22/29] mmc: sdhci-uhs2: add add_host() and others to set up the driver Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 23/29] mmc: sdhci-uhs2: add pre-detect_init hook Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 24/29] mmc: core: add post-mmc_attach_sd hook Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 25/29] mmc: sdhci-uhs2: " Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 26/29] mmc: sdhci-pci: add UHS-II support framework Jason Lai
2021-07-22  4:01 ` [RFC PATCH v3.2 27/29] mmc: sdhci-pci-gli: enable UHS-II mode for GL9755 Jason Lai
2021-07-22  4:01 ` Jason Lai [this message]
2021-07-22  4:01 ` [RFC PATCH v3.2 29/29] mmc: core: Apply Ulf's patch for supporting UHS-II card Jason Lai

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