* [PATCH 2/3] spi: coldfire-qspi: Remove unused dev field from struct mcfqspi
2014-02-14 1:53 [PATCH 1/3] spi: coldfire-qspi: Fix getting correct address for *mcfqspi Axel Lin
@ 2014-02-14 1:54 ` Axel Lin
2014-02-14 1:55 ` [RFT][PATCH 3/3] spi: coldfire-qspi: Use core message handling Axel Lin
2014-02-23 4:10 ` [PATCH 1/3] spi: coldfire-qspi: Fix getting correct address for *mcfqspi Mark Brown
2 siblings, 0 replies; 4+ messages in thread
From: Axel Lin @ 2014-02-14 1:54 UTC (permalink / raw)
To: Mark Brown; +Cc: Steven King, linux-spi-u79uwXL29TY76Z2rM5mHXA
Also remove unused *res variable in mcfqspi_remove().
Signed-off-by: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
---
drivers/spi/spi-coldfire-qspi.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index 8e4f1c9c..0fcec3b 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -77,8 +77,6 @@ struct mcfqspi {
struct mcfqspi_cs_control *cs_control;
wait_queue_head_t waitq;
-
- struct device *dev;
};
static void mcfqspi_wr_qmr(struct mcfqspi *mcfqspi, u16 val)
@@ -430,7 +428,6 @@ static int mcfqspi_probe(struct platform_device *pdev)
}
init_waitqueue_head(&mcfqspi->waitq);
- mcfqspi->dev = &pdev->dev;
master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
@@ -445,7 +442,7 @@ static int mcfqspi_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "spi_register_master failed\n");
goto fail2;
}
- pm_runtime_enable(mcfqspi->dev);
+ pm_runtime_enable(&pdev->dev);
dev_info(&pdev->dev, "Coldfire QSPI bus driver\n");
@@ -467,9 +464,8 @@ static int mcfqspi_remove(struct platform_device *pdev)
{
struct spi_master *master = platform_get_drvdata(pdev);
struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
- struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- pm_runtime_disable(mcfqspi->dev);
+ pm_runtime_disable(&pdev->dev);
/* disable the hardware (set the baud rate to 0) */
mcfqspi_wr_qmr(mcfqspi, MCFQSPI_QMR_MSTR);
--
1.8.1.2
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^ permalink raw reply related [flat|nested] 4+ messages in thread* [RFT][PATCH 3/3] spi: coldfire-qspi: Use core message handling
2014-02-14 1:53 [PATCH 1/3] spi: coldfire-qspi: Fix getting correct address for *mcfqspi Axel Lin
2014-02-14 1:54 ` [PATCH 2/3] spi: coldfire-qspi: Remove unused dev field from struct mcfqspi Axel Lin
@ 2014-02-14 1:55 ` Axel Lin
2014-02-23 4:10 ` [PATCH 1/3] spi: coldfire-qspi: Fix getting correct address for *mcfqspi Mark Brown
2 siblings, 0 replies; 4+ messages in thread
From: Axel Lin @ 2014-02-14 1:55 UTC (permalink / raw)
To: Mark Brown; +Cc: Steven King, linux-spi-u79uwXL29TY76Z2rM5mHXA
Convert to use default implementation of transfer_one_message().
Signed-off-by: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
---
Hi Steven,
I don't have this h/w, can you help testing if this patch works.
Thanks,
Axel
drivers/spi/spi-coldfire-qspi.c | 81 +++++++++++++++++------------------------
1 file changed, 34 insertions(+), 47 deletions(-)
diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index 0fcec3b..c29bbb0 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -298,58 +298,44 @@ static void mcfqspi_transfer_msg16(struct mcfqspi *mcfqspi, unsigned count,
}
}
-static int mcfqspi_transfer_one_message(struct spi_master *master,
- struct spi_message *msg)
+static void mcfqspi_set_cs(struct spi_device *spi, bool enable)
{
- struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
- struct spi_device *spi = msg->spi;
- struct spi_transfer *t;
- int status = 0;
-
- list_for_each_entry(t, &msg->transfers, transfer_list) {
- bool cs_high = spi->mode & SPI_CS_HIGH;
- u16 qmr = MCFQSPI_QMR_MSTR;
-
- qmr |= t->bits_per_word << 10;
- if (spi->mode & SPI_CPHA)
- qmr |= MCFQSPI_QMR_CPHA;
- if (spi->mode & SPI_CPOL)
- qmr |= MCFQSPI_QMR_CPOL;
- if (t->speed_hz)
- qmr |= mcfqspi_qmr_baud(t->speed_hz);
- else
- qmr |= mcfqspi_qmr_baud(spi->max_speed_hz);
- mcfqspi_wr_qmr(mcfqspi, qmr);
+ struct mcfqspi *mcfqspi = spi_master_get_devdata(spi->master);
+ bool cs_high = spi->mode & SPI_CS_HIGH;
+ if (enable)
mcfqspi_cs_select(mcfqspi, spi->chip_select, cs_high);
+ else
+ mcfqspi_cs_deselect(mcfqspi, spi->chip_select, cs_high);
+}
- mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE);
- if (t->bits_per_word == 8)
- mcfqspi_transfer_msg8(mcfqspi, t->len, t->tx_buf,
- t->rx_buf);
- else
- mcfqspi_transfer_msg16(mcfqspi, t->len / 2, t->tx_buf,
- t->rx_buf);
- mcfqspi_wr_qir(mcfqspi, 0);
-
- if (t->delay_usecs)
- udelay(t->delay_usecs);
- if (t->cs_change) {
- if (!list_is_last(&t->transfer_list, &msg->transfers))
- mcfqspi_cs_deselect(mcfqspi, spi->chip_select,
- cs_high);
- } else {
- if (list_is_last(&t->transfer_list, &msg->transfers))
- mcfqspi_cs_deselect(mcfqspi, spi->chip_select,
- cs_high);
- }
- msg->actual_length += t->len;
- }
- msg->status = status;
- spi_finalize_current_message(master);
+static int mcfqspi_transfer_one(struct spi_master *master,
+ struct spi_device *spi,
+ struct spi_transfer *t)
+{
+ struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
+ u16 qmr = MCFQSPI_QMR_MSTR;
+
+ qmr |= t->bits_per_word << 10;
+ if (spi->mode & SPI_CPHA)
+ qmr |= MCFQSPI_QMR_CPHA;
+ if (spi->mode & SPI_CPOL)
+ qmr |= MCFQSPI_QMR_CPOL;
+ if (t->speed_hz)
+ qmr |= mcfqspi_qmr_baud(t->speed_hz);
+ else
+ qmr |= mcfqspi_qmr_baud(spi->max_speed_hz);
+ mcfqspi_wr_qmr(mcfqspi, qmr);
- return status;
+ mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE);
+ if (t->bits_per_word == 8)
+ mcfqspi_transfer_msg8(mcfqspi, t->len, t->tx_buf, t->rx_buf);
+ else
+ mcfqspi_transfer_msg16(mcfqspi, t->len / 2, t->tx_buf,
+ t->rx_buf);
+ mcfqspi_wr_qir(mcfqspi, 0);
+ return 0;
}
static int mcfqspi_setup(struct spi_device *spi)
@@ -432,7 +418,8 @@ static int mcfqspi_probe(struct platform_device *pdev)
master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
master->setup = mcfqspi_setup;
- master->transfer_one_message = mcfqspi_transfer_one_message;
+ master->set_cs = mcfqspi_set_cs;
+ master->transfer_one = mcfqspi_transfer_one;
master->auto_runtime_pm = true;
platform_set_drvdata(pdev, master);
--
1.8.1.2
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^ permalink raw reply related [flat|nested] 4+ messages in thread