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Message-Id: <eca458ae1a0d3934d0627f90e25d294fefd4b13d.1592261248.git.robin.murphy@arm.com>
Date: Tue, 16 Jun 2020 01:09:27 +0100
From: Robin Murphy <robin.murphy@....com>
To: broonie@...nel.org, nsaenzjulienne@...e.de, f.fainelli@...il.com,
rjui@...adcom.com, sbranden@...adcom.com
Cc: bcm-kernel-feedback-list@...adcom.com, linux-spi@...r.kernel.org,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, kernel@...tin.sperl.org,
lukas@...ner.de, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] spi: bcm3835: Tidy up bcm2835_spi_reset_hw()
It doesn't need a struct spi_controller, and every callsite has
already retrieved the appropriate struct bcm2835_spi, so just pass
that directly.
Signed-off-by: Robin Murphy <robin.murphy@....com>
---
drivers/spi/spi-bcm2835.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 237bd306c268..524a91e52111 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -335,9 +335,8 @@ static inline void bcm2835_wr_fifo_blind(struct bcm2835_spi *bs, int count)
}
}
-static void bcm2835_spi_reset_hw(struct spi_controller *ctlr)
+static void bcm2835_spi_reset_hw(struct bcm2835_spi *bs)
{
- struct bcm2835_spi *bs = spi_controller_get_devdata(ctlr);
u32 cs = bcm2835_rd(bs, BCM2835_SPI_CS);
/* Disable SPI interrupts and transfer */
@@ -386,7 +385,7 @@ static irqreturn_t bcm2835_spi_interrupt(int irq, void *dev_id)
if (!bs->rx_len) {
/* Transfer complete - reset SPI HW */
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
/* wake up the framework */
complete(&ctlr->xfer_completion);
}
@@ -607,7 +606,7 @@ static void bcm2835_spi_dma_rx_done(void *data)
bcm2835_spi_undo_prologue(bs);
/* reset fifo and HW */
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
/* and mark as completed */;
complete(&ctlr->xfer_completion);
@@ -641,7 +640,7 @@ static void bcm2835_spi_dma_tx_done(void *data)
dmaengine_terminate_async(ctlr->dma_rx);
bcm2835_spi_undo_prologue(bs);
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
complete(&ctlr->xfer_completion);
}
@@ -825,14 +824,14 @@ static int bcm2835_spi_transfer_one_dma(struct spi_controller *ctlr,
if (!bs->rx_buf && !bs->tx_dma_active &&
cmpxchg(&bs->rx_dma_active, true, false)) {
dmaengine_terminate_async(ctlr->dma_rx);
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
}
/* wait for wakeup in framework */
return 1;
err_reset_hw:
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
bcm2835_spi_undo_prologue(bs);
return ret;
}
@@ -1074,7 +1073,7 @@ static int bcm2835_spi_transfer_one_poll(struct spi_controller *ctlr,
}
/* Transfer complete - reset SPI HW */
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
/* and return without waiting for completion */
return 0;
}
@@ -1182,7 +1181,7 @@ static void bcm2835_spi_handle_err(struct spi_controller *ctlr,
bcm2835_spi_undo_prologue(bs);
/* and reset */
- bcm2835_spi_reset_hw(ctlr);
+ bcm2835_spi_reset_hw(bs);
}
static int chip_match_name(struct gpio_chip *chip, void *data)
--
2.23.0.dirty
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