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From: Ulf Hansson <ulf.hansson@linaro.org>
To: linux-mmc@vger.kernel.org, Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>,
	Shawn Lin <shawn.lin@rock-chips.com>,
	Avri Altman <avri.altman@wdc.com>,
	Masami Hiramatsu <masami.hiramatsu@linaro.org>,
	linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 06/11] mmc: core: Prepare mmc_send_cxd_data() to be re-used for additional cmds
Date: Tue,  4 May 2021 18:12:17 +0200	[thread overview]
Message-ID: <20210504161222.101536-7-ulf.hansson@linaro.org> (raw)
In-Reply-To: <20210504161222.101536-1-ulf.hansson@linaro.org>

The function mmc_send_cxd_data() sends a data read command of ADTC type and
prepares to receive an R1 response. To make it even more re-usable, let's
extend it with another in-parameter for the command argument. While at it,
let's also rename the function to mmc_send_adtc_data() as it better
describes its purpose.

Note that, this change doesn't add any new users of the function. Instead
that is done from subsequent changes.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/mmc/core/mmc_ops.c | 11 +++++------
 drivers/mmc/core/mmc_ops.h |  2 ++
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 653627fe02a3..b1da8f1950ee 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -252,9 +252,8 @@ mmc_send_cxd_native(struct mmc_host *host, u32 arg, u32 *cxd, int opcode)
  * NOTE: void *buf, caller for the buf is required to use DMA-capable
  * buffer or on-stack buffer (with some overhead in callee).
  */
-static int
-mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
-		u32 opcode, void *buf, unsigned len)
+int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode,
+		       u32 args, void *buf, unsigned len)
 {
 	struct mmc_request mrq = {};
 	struct mmc_command cmd = {};
@@ -265,7 +264,7 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host,
 	mrq.data = &data;
 
 	cmd.opcode = opcode;
-	cmd.arg = 0;
+	cmd.arg = args;
 
 	/* NOTE HACK:  the MMC_RSP_SPI_R1 is always correct here, but we
 	 * rely on callers to never use this with "native" calls for reading
@@ -311,7 +310,7 @@ static int mmc_spi_send_cxd(struct mmc_host *host, u32 *cxd, u32 opcode)
 	if (!cxd_tmp)
 		return -ENOMEM;
 
-	ret = mmc_send_cxd_data(NULL, host, opcode, cxd_tmp, 16);
+	ret = mmc_send_adtc_data(NULL, host, opcode, 0, cxd_tmp, 16);
 	if (ret)
 		goto err;
 
@@ -359,7 +358,7 @@ int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd)
 	if (!ext_csd)
 		return -ENOMEM;
 
-	err = mmc_send_cxd_data(card, card->host, MMC_SEND_EXT_CSD, ext_csd,
+	err = mmc_send_adtc_data(card, card->host, MMC_SEND_EXT_CSD, 0, ext_csd,
 				512);
 	if (err)
 		kfree(ext_csd);
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h
index aca66c128804..2b1d730e56bf 100644
--- a/drivers/mmc/core/mmc_ops.h
+++ b/drivers/mmc/core/mmc_ops.h
@@ -26,6 +26,8 @@ int mmc_set_dsr(struct mmc_host *host);
 int mmc_go_idle(struct mmc_host *host);
 int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr);
 int mmc_set_relative_addr(struct mmc_card *card);
+int mmc_send_adtc_data(struct mmc_card *card, struct mmc_host *host, u32 opcode,
+		       u32 args, void *buf, unsigned len);
 int mmc_send_csd(struct mmc_card *card, u32 *csd);
 int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries);
 int mmc_send_status(struct mmc_card *card, u32 *status);
-- 
2.25.1


  parent reply	other threads:[~2021-05-04 16:12 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-04 16:12 [PATCH 00/11] Initital support for new power/perf features for SD cards Ulf Hansson
2021-05-04 16:12 ` [PATCH 01/11] mmc: core: Drop open coding when preparing commands with busy signaling Ulf Hansson
2021-05-06 12:50   ` Linus Walleij
2021-05-07  1:42   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 02/11] mmc: core: Take into account MMC_CAP_NEED_RSP_BUSY for eMMC HPI commands Ulf Hansson
2021-05-06 12:51   ` Linus Walleij
2021-05-07  1:44   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 03/11] mmc: core: Re-structure some code in __mmc_poll_for_busy() Ulf Hansson
2021-05-06 12:52   ` Linus Walleij
2021-05-07  1:48   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 04/11] mmc: core: Extend re-use of __mmc_poll_for_busy() Ulf Hansson
2021-05-06 12:53   ` Linus Walleij
2021-05-07  1:51   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 05/11] mmc: core: Enable eMMC sleep commands to use HW busy polling Ulf Hansson
2021-05-06 12:55   ` Linus Walleij
2021-05-07  1:52   ` Shawn Lin
2021-05-04 16:12 ` Ulf Hansson [this message]
2021-05-06 12:56   ` [PATCH 06/11] mmc: core: Prepare mmc_send_cxd_data() to be re-used for additional cmds Linus Walleij
2021-05-06 13:00   ` Linus Walleij
2021-05-07  7:30     ` Ulf Hansson
2021-05-07  1:53   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 07/11] mmc: core: Drop open coding in mmc_sd_switch() Ulf Hansson
2021-05-06 12:57   ` Linus Walleij
2021-05-07  1:54   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 08/11] mmc: core: Parse the SD SCR register for support of CMD48/49 and CMD58/59 Ulf Hansson
2021-05-06 13:01   ` Linus Walleij
2021-05-07  1:58   ` Shawn Lin
2021-05-04 16:12 ` [PATCH 09/11] mmc: core: Read the SD function extension registers for power management Ulf Hansson
2021-05-06 13:04   ` Linus Walleij
2021-05-07  2:06   ` Shawn Lin
2021-05-07  7:27     ` Ulf Hansson
2021-05-07  7:48       ` Shawn Lin
2021-05-07 11:36         ` Ulf Hansson
2021-05-04 16:12 ` [PATCH 10/11] mmc: core: Read performance enhancements registers for SD cards Ulf Hansson
2021-05-06 13:05   ` Linus Walleij
2021-05-04 16:12 ` [PATCH 11/11] mmc: core: Add support for Power Off Notification " Ulf Hansson
2021-05-06 13:07   ` Linus Walleij
2021-05-07  6:44 ` [PATCH 00/11] Initital support for new power/perf features " Avri Altman
2021-05-07  7:31   ` Ulf Hansson
2021-05-11 10:56 ` Ulf Hansson

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