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* [PATCH 1/4] spi: fsl-espi: simplify fsl_espi_setup_transfer
@ 2016-09-13 21:15 Heiner Kallweit
       [not found] ` <b3d6f046-0331-3482-ca87-9205ffd380d4-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
  0 siblings, 1 reply; 3+ messages in thread
From: Heiner Kallweit @ 2016-09-13 21:15 UTC (permalink / raw)
  To: Mark Brown; +Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

If t is not null then the SPI core takes care that bits_per_word and
speed_hz are populated. This allows to simplify fsl_espi_setup_transfer.

Signed-off-by: Heiner Kallweit <hkallweit1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/spi/spi-fsl-espi.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index bef0676..060624f 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -176,23 +176,11 @@ static void fsl_espi_setup_transfer(struct spi_device *spi,
 					struct spi_transfer *t)
 {
 	struct mpc8xxx_spi *mpc8xxx_spi = spi_master_get_devdata(spi->master);
-	int bits_per_word = 0;
+	int bits_per_word = t ? t->bits_per_word : spi->bits_per_word;
+	u32 hz = t ? t->speed_hz : spi->max_speed_hz;
 	u8 pm;
-	u32 hz = 0;
 	struct spi_mpc8xxx_cs *cs = spi->controller_state;
 
-	if (t) {
-		bits_per_word = t->bits_per_word;
-		hz = t->speed_hz;
-	}
-
-	/* spi_transfer level calls that work per-word */
-	if (!bits_per_word)
-		bits_per_word = spi->bits_per_word;
-
-	if (!hz)
-		hz = spi->max_speed_hz;
-
 	cs->rx_shift = 0;
 	cs->tx_shift = 0;
 	cs->get_rx = mpc8xxx_spi_rx_buf_u32;
-- 
2.9.2

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^ permalink raw reply related	[flat|nested] 3+ messages in thread
* [PATCH 21/23] spi: fsl-espi: simplify fsl_espi_setup_transfer
@ 2016-08-25  4:51 Heiner Kallweit
       [not found] ` <b65bdf36-d8cd-dc67-54ad-64672e367d2f-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
  0 siblings, 1 reply; 3+ messages in thread
From: Heiner Kallweit @ 2016-08-25  4:51 UTC (permalink / raw)
  To: Mark Brown; +Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org

Simplify fsl_espi_setup_transfer a little.

Signed-off-by: Heiner Kallweit <hkallweit1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/spi/spi-fsl-espi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index d348a66..a5a67ce 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -210,12 +210,10 @@ static void fsl_espi_setup_transfer(struct spi_device *spi,
 	mpc8xxx_spi->get_rx = cs->get_rx;
 	mpc8xxx_spi->get_tx = cs->get_tx;
 
-	bits_per_word = bits_per_word - 1;
-
 	/* mask out bits we are going to set */
 	cs->hw_mode &= ~(CSMODE_LEN(0xF) | CSMODE_DIV16 | CSMODE_PM(0xF));
 
-	cs->hw_mode |= CSMODE_LEN(bits_per_word);
+	cs->hw_mode |= CSMODE_LEN(bits_per_word - 1);
 
 	if ((mpc8xxx_spi->spibrg / hz) > 64) {
 		cs->hw_mode |= CSMODE_DIV16;
-- 
2.9.2


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^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-09-14 17:25 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2016-09-13 21:15 [PATCH 1/4] spi: fsl-espi: simplify fsl_espi_setup_transfer Heiner Kallweit
     [not found] ` <b3d6f046-0331-3482-ca87-9205ffd380d4-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-09-14 17:25   ` Applied "spi: fsl-espi: simplify fsl_espi_setup_transfer" to the spi tree Mark Brown
  -- strict thread matches above, loose matches on Subject: below --
2016-08-25  4:51 [PATCH 21/23] spi: fsl-espi: simplify fsl_espi_setup_transfer Heiner Kallweit
     [not found] ` <b65bdf36-d8cd-dc67-54ad-64672e367d2f-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-09-06 11:29   ` Applied "spi: fsl-espi: simplify fsl_espi_setup_transfer" to the spi tree Mark Brown

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