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64 lines
2.1 KiB
64 lines
2.1 KiB
From a4b122f945c564e47a42a9665b484785e86648de Mon Sep 17 00:00:00 2001
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From: Axel Lin <axel.lin@ingics.com>
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Date: Fri, 21 Feb 2014 09:34:16 +0800
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Subject: [PATCH 068/182] spi: qup: Convert ot let spi core handle checking
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transfer speed
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Set master->max_speed_hz then spi core will handle checking transfer speed.
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So we can remove the same checking in this driver.
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Also remove checking spi->chip_select in spi_qup_setup(), the checking is done
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by spi core.
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Signed-off-by: Axel Lin <axel.lin@ingics.com>
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Acked-by: Ivan T. Ivanov <iivanov@mm-sol.com>
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Signed-off-by: Mark Brown <broonie@linaro.org>
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---
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drivers/spi/spi-qup.c | 15 +--------------
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1 file changed, 1 insertion(+), 14 deletions(-)
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--- a/drivers/spi/spi-qup.c
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+++ b/drivers/spi/spi-qup.c
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@@ -134,7 +134,6 @@ struct spi_qup {
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struct clk *cclk; /* core clock */
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struct clk *iclk; /* interface clock */
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int irq;
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- u32 max_speed_hz;
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spinlock_t lock;
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int in_fifo_sz;
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@@ -517,18 +516,6 @@ static int spi_qup_setup(struct spi_devi
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struct spi_qup *controller = spi_master_get_devdata(spi->master);
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struct spi_qup_device *chip = spi_get_ctldata(spi);
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- if (spi->chip_select >= spi->master->num_chipselect) {
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- dev_err(controller->dev, "invalid chip_select %d\n",
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- spi->chip_select);
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- return -EINVAL;
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- }
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-
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- if (spi->max_speed_hz > controller->max_speed_hz) {
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- dev_err(controller->dev, "invalid max_speed_hz %d\n",
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- spi->max_speed_hz);
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- return -EINVAL;
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- }
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-
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if (!chip) {
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/* First setup */
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chip = kzalloc(sizeof(*chip), GFP_KERNEL);
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@@ -629,6 +616,7 @@ static int spi_qup_probe(struct platform
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master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
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master->num_chipselect = SPI_NUM_CHIPSELECTS;
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master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32);
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+ master->max_speed_hz = max_freq;
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master->setup = spi_qup_setup;
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master->cleanup = spi_qup_cleanup;
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master->set_cs = spi_qup_set_cs;
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@@ -645,7 +633,6 @@ static int spi_qup_probe(struct platform
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controller->iclk = iclk;
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controller->cclk = cclk;
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controller->irq = irq;
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- controller->max_speed_hz = max_freq;
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spin_lock_init(&controller->lock);
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init_completion(&controller->done);
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