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From: Vladimir Oltean <olteanv@gmail.com>
To: broonie@kernel.org
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
	eha@deif.com, angelo@sysam.it, andrew.smirnov@gmail.com,
	gustavo@embeddedor.com, weic@nvidia.com, mhosny@nvidia.com
Subject: [PATCH 02/12] spi: spi-fsl-dspi: Remove unused chip->void_write_data
Date: Thu,  5 Mar 2020 00:00:34 +0200	[thread overview]
Message-ID: <20200304220044.11193-3-olteanv@gmail.com> (raw)
In-Reply-To: <20200304220044.11193-1-olteanv@gmail.com>

From: Vladimir Oltean <vladimir.oltean@nxp.com>

This variable has been present since the initial submission of the
driver, and held, for some reason, the value of zero, to be sent on the
wire in the case there wasn't any TX buffer for the current transfer.

Since quite a while now, however, it isn't doing anything at all.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
 drivers/spi/spi-fsl-dspi.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 896d7a0f45b0..63ec1d634d08 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -110,7 +110,6 @@
 
 struct chip_data {
 	u32			ctar_val;
-	u16			void_write_data;
 };
 
 enum dspi_trans_mode {
@@ -235,7 +234,6 @@ struct fsl_dspi {
 	const void				*tx;
 	void					*rx;
 	void					*rx_end;
-	u16					void_write_data;
 	u16					tx_cmd;
 	u8					bits_per_word;
 	u8					bytes_per_word;
@@ -795,8 +793,6 @@ static int dspi_transfer_one_message(struct spi_controller *ctlr,
 				dspi->tx_cmd |= SPI_PUSHR_CMD_CONT;
 		}
 
-		dspi->void_write_data = dspi->cur_chip->void_write_data;
-
 		dspi->tx = transfer->tx_buf;
 		dspi->rx = transfer->rx_buf;
 		dspi->rx_end = dspi->rx + transfer->len;
@@ -897,8 +893,6 @@ static int dspi_setup(struct spi_device *spi)
 		sck_cs_delay = pdata->sck_cs_delay;
 	}
 
-	chip->void_write_data = 0;
-
 	clkrate = clk_get_rate(dspi->clk);
 	hz_to_spi_baud(&pbr, &br, spi->max_speed_hz, clkrate);
 
-- 
2.17.1

  parent reply	other threads:[~2020-03-04 22:00 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-04 22:00 [PATCH 00/12] TCFQ to XSPI migration for NXP DSPI driver Vladimir Oltean
2020-03-04 22:00 ` [PATCH 01/12] spi: spi-fsl-dspi: Simplify bytes_per_word gymnastics Vladimir Oltean
     [not found]   ` <20200304220044.11193-2-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:38     ` Applied "spi: spi-fsl-dspi: Simplify bytes_per_word gymnastics" to the spi tree Mark Brown
2020-03-04 22:00 ` Vladimir Oltean [this message]
     [not found]   ` <20200304220044.11193-3-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Remove unused chip->void_write_data" " Mark Brown
2020-03-04 22:00 ` [PATCH 03/12] spi: spi-fsl-dspi: Don't mask off undefined bits Vladimir Oltean
     [not found]   ` <20200304220044.11193-4-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Don't mask off undefined bits" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 04/12] spi: spi-fsl-dspi: Add comments around dspi_pop_tx and dspi_push_rx functions Vladimir Oltean
     [not found]   ` <20200304220044.11193-5-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Add comments around dspi_pop_tx and dspi_push_rx functions" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 05/12] spi: spi-fsl-dspi: Rename fifo_{read,write} and {tx,cmd}_fifo_write Vladimir Oltean
     [not found]   ` <20200304220044.11193-6-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Rename fifo_{read,write} and {tx,cmd}_fifo_write" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 06/12] spi: spi-fsl-dspi: Implement .max_message_size method for EOQ mode Vladimir Oltean
     [not found]   ` <20200304220044.11193-7-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Implement .max_message_size method for EOQ mode" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 07/12] spi: Do spi_take_timestamp_pre for as many times as necessary Vladimir Oltean
     [not found]   ` <20200304220044.11193-8-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 12:12     ` Mark Brown
2020-03-05 13:00       ` Vladimir Oltean
     [not found]         ` <CA+h21hq8c50AjuzgpxyPQDCFiAdezJuqgY0+u26qBRx9FnYnig-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-03-05 13:04           ` Mark Brown
     [not found]             ` <20200305130448.GC4046-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2020-03-05 13:13               ` Vladimir Oltean
     [not found]                 ` <CA+h21hrSe-jT_R9jCW1XA6aZ=vjMX=b7HLq3KJdfxi9OOFW5ag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2020-03-05 13:16                   ` Mark Brown
2020-03-05 14:37     ` Applied "spi: Do spi_take_timestamp_pre for as many times as necessary" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 08/12] spi: spi-fsl-dspi: Convert TCFQ users to XSPI FIFO mode Vladimir Oltean
2020-03-05 14:37   ` Applied "spi: spi-fsl-dspi: Convert TCFQ users to XSPI FIFO mode" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 09/12] spi: spi-fsl-dspi: Accelerate transfers using larger word size if possible Vladimir Oltean
     [not found]   ` <20200304220044.11193-10-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Accelerate transfers using larger word size if possible" to the spi tree Mark Brown
2020-03-04 22:00 ` [PATCH 10/12] spi: spi-fsl-dspi: Optimize dspi_setup_accel for lowest interrupt count Vladimir Oltean
     [not found]   ` <20200304220044.11193-11-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Optimize dspi_setup_accel for lowest interrupt count" to the spi tree Mark Brown
     [not found] ` <20200304220044.11193-1-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-04 22:00   ` [PATCH 11/12] spi: spi-fsl-dspi: Use EOQ for last word in buffer even for XSPI mode Vladimir Oltean
2020-03-05 14:37     ` Applied "spi: spi-fsl-dspi: Use EOQ for last word in buffer even for XSPI mode" to the spi tree Mark Brown
2020-03-04 22:00   ` [PATCH 12/12] spi: spi-fsl-dspi: Take software timestamp in dspi_fifo_write Vladimir Oltean
     [not found]     ` <20200304220044.11193-13-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-05 14:37       ` Applied "spi: spi-fsl-dspi: Take software timestamp in dspi_fifo_write" to the spi tree Mark Brown

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