From: Faiz Abbas <faiz_abbas@ti.com>
To: <linux-omap@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>, <linux-mmc@vger.kernel.org>
Cc: <kishon@ti.com>, <adrian.hunter@intel.com>,
<mark.rutland@arm.com>, <robh+dt@kernel.org>,
<ulf.hansson@linaro.org>, <tony@atomide.com>, <faiz_abbas@ti.com>
Subject: [PATCH v4 02/11] mmc: sdhci: Factor out some operations set to their own functions
Date: Mon, 6 Jan 2020 16:31:24 +0530 [thread overview]
Message-ID: <20200106110133.13791-3-faiz_abbas@ti.com> (raw)
In-Reply-To: <20200106110133.13791-1-faiz_abbas@ti.com>
In preparation for adding external dma support, factor out data initialization,
block info and mrq_done to their own functions.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
---
drivers/mmc/host/sdhci.c | 96 +++++++++++++++++++++++-----------------
1 file changed, 55 insertions(+), 41 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 1b1c26da3fe0..f6999054abcf 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1025,18 +1025,9 @@ static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
}
}
-static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
+static void sdhci_initialize_data(struct sdhci_host *host,
+ struct mmc_data *data)
{
- struct mmc_data *data = cmd->data;
-
- host->data_timeout = 0;
-
- if (sdhci_data_line_cmd(cmd))
- sdhci_set_timeout(host, cmd);
-
- if (!data)
- return;
-
WARN_ON(host->data);
/* Sanity checks */
@@ -1048,6 +1039,36 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
host->data_early = 0;
host->data->bytes_xfered = 0;
+}
+
+static inline void sdhci_set_block_info(struct sdhci_host *host,
+ struct mmc_data *data)
+{
+
+ /* Set the DMA boundary value and block size */
+ sdhci_writew(host,
+ SDHCI_MAKE_BLKSZ(host->sdma_boundary, host->data->blksz),
+ SDHCI_BLOCK_SIZE);
+ /*
+ * For Version 4.10 onwards, if v4 mode is enabled, 32-bit Block Count
+ * can be supported, in that case 16-bit block count register must be 0.
+ */
+ if (host->version >= SDHCI_SPEC_410 && host->v4_mode &&
+ (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) {
+ if (sdhci_readw(host, SDHCI_BLOCK_COUNT))
+ sdhci_writew(host, 0, SDHCI_BLOCK_COUNT);
+ sdhci_writew(host, host->data->blocks, SDHCI_32BIT_BLK_CNT);
+ } else {
+ sdhci_writew(host, host->data->blocks, SDHCI_BLOCK_COUNT);
+ }
+}
+
+static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
+{
+ struct mmc_data *data = cmd->data;
+
+ sdhci_initialize_data(host, data);
+
if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
struct scatterlist *sg;
unsigned int length_mask, offset_mask;
@@ -1133,22 +1154,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
sdhci_set_transfer_irqs(host);
- /* Set the DMA boundary value and block size */
- sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz),
- SDHCI_BLOCK_SIZE);
-
- /*
- * For Version 4.10 onwards, if v4 mode is enabled, 32-bit Block Count
- * can be supported, in that case 16-bit block count register must be 0.
- */
- if (host->version >= SDHCI_SPEC_410 && host->v4_mode &&
- (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) {
- if (sdhci_readw(host, SDHCI_BLOCK_COUNT))
- sdhci_writew(host, 0, SDHCI_BLOCK_COUNT);
- sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT);
- } else {
- sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT);
- }
+ sdhci_set_block_info(host, data);
}
static inline bool sdhci_auto_cmd12(struct sdhci_host *host,
@@ -1245,22 +1251,10 @@ static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)
(host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)));
}
-static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)
+static void sdhci_set_mrq_done(struct sdhci_host *host, struct mmc_request *mrq)
{
int i;
- if (host->cmd && host->cmd->mrq == mrq)
- host->cmd = NULL;
-
- if (host->data_cmd && host->data_cmd->mrq == mrq)
- host->data_cmd = NULL;
-
- if (host->data && host->data->mrq == mrq)
- host->data = NULL;
-
- if (sdhci_needs_reset(host, mrq))
- host->pending_reset = true;
-
for (i = 0; i < SDHCI_MAX_MRQS; i++) {
if (host->mrqs_done[i] == mrq) {
WARN_ON(1);
@@ -1276,6 +1270,23 @@ static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)
}
WARN_ON(i >= SDHCI_MAX_MRQS);
+}
+
+static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)
+{
+ if (host->cmd && host->cmd->mrq == mrq)
+ host->cmd = NULL;
+
+ if (host->data_cmd && host->data_cmd->mrq == mrq)
+ host->data_cmd = NULL;
+
+ if (host->data && host->data->mrq == mrq)
+ host->data = NULL;
+
+ if (sdhci_needs_reset(host, mrq))
+ host->pending_reset = true;
+
+ sdhci_set_mrq_done(host, mrq);
sdhci_del_timer(host, mrq);
@@ -1390,12 +1401,15 @@ void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
}
host->cmd = cmd;
+ host->data_timeout = 0;
if (sdhci_data_line_cmd(cmd)) {
WARN_ON(host->data_cmd);
host->data_cmd = cmd;
+ sdhci_set_timeout(host, cmd);
}
- sdhci_prepare_data(host, cmd);
+ if (cmd->data)
+ sdhci_prepare_data(host, cmd);
sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT);
--
2.19.2
next prev parent reply other threads:[~2020-01-06 11:00 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-06 11:01 [PATCH v4 00/11] Port am335x and am437x devices to sdhci-omap Faiz Abbas
2020-01-06 11:01 ` [PATCH v4 01/11] dt-bindings: sdhci-omap: Add properties for using external dma Faiz Abbas
2020-01-06 11:01 ` Faiz Abbas [this message]
2020-01-07 6:34 ` [PATCH v4 02/11] mmc: sdhci: Factor out some operations set to their own functions Baolin Wang
2020-01-07 7:22 ` Faiz Abbas
2020-01-08 1:32 ` Baolin Wang
2020-01-15 10:55 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 03/11] mmc: sdhci: add support for using external DMA devices Faiz Abbas
2020-01-08 1:28 ` Baolin Wang
2020-01-08 9:20 ` Faiz Abbas
2020-01-08 9:29 ` Baolin Wang
2020-01-08 13:35 ` Peter Ujfalusi
2020-01-10 13:16 ` Faiz Abbas
2020-01-15 12:01 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 04/11] mmc: sdhci-omap: Add using external dma Faiz Abbas
2020-01-15 12:02 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 05/11] mmc: sdhci: Convert sdhci_set_timeout_irq() to non-static Faiz Abbas
2020-01-15 12:03 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 06/11] mmc: sdhci: Refactor sdhci_set_timeout() Faiz Abbas
2020-01-15 12:04 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 07/11] mmc: sdhci-omap: Disable data timeout interrupt during erase Faiz Abbas
2020-01-15 12:05 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 08/11] dt-bindings: sdhci-omap: Add documentation for ti,needs-special-reset property Faiz Abbas
2020-01-06 22:03 ` Rob Herring
2020-01-07 11:18 ` Faiz Abbas
2020-01-06 11:01 ` [PATCH v4 09/11] mmc: sdhci-omap: Add " Faiz Abbas
2020-01-15 12:14 ` Adrian Hunter
2020-01-06 11:01 ` [PATCH v4 10/11] dt-bindings: sdhci-omap: Add am335x and am437x specific bindings Faiz Abbas
2020-01-06 11:01 ` [PATCH v4 11/11] mmc: sdhci-omap: Add am335x and am437x specific compatibles Faiz Abbas
2020-01-15 12:14 ` Adrian Hunter
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