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| author | Axel Lin <axel.lin@ingics.com> | 2014-02-10 21:51:13 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-02-11 12:07:53 +0000 |
| commit | 3c604de496d7568b3fddb9f2531630aa89908186 (patch) | |
| tree | 144628bca4f44ff1f7b429a2195e703f16a9c63f /drivers/spi/spi-tegra20-slink.c | |
| parent | 44830b4c2f978a1bc667d1557d26277a7e593cf5 (diff) | |
| download | op-kernel-dev-3c604de496d7568b3fddb9f2531630aa89908186.zip op-kernel-dev-3c604de496d7568b3fddb9f2531630aa89908186.tar.gz | |
spi: tegra20-slink: Convert to use master->max_speed_hz
Use master->max_speed_hz instead of tspi->spi_max_frequency, so spi core will
handle checking transfer speed.
In additional, since commit 052eb2d49006 'spi: core: Set max_speed_hz of
spi_device default to max_speed_hz of controller',
spi core will also set default spi->max_speed_hz if it is not set.
So remove the duplicate code in tegra_slink_setup.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-tegra20-slink.c')
| -rw-r--r-- | drivers/spi/spi-tegra20-slink.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index be3a069..9da14f2 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -171,7 +171,6 @@ struct tegra_slink_data { void __iomem *base; phys_addr_t phys; unsigned irq; - u32 spi_max_frequency; u32 cur_speed; struct spi_device *cur_spi; @@ -763,8 +762,6 @@ static int tegra_slink_setup(struct spi_device *spi) BUG_ON(spi->chip_select >= MAX_CHIP_SELECT); - /* Set speed to the spi max fequency if spi device has not set */ - spi->max_speed_hz = spi->max_speed_hz ? : tspi->spi_max_frequency; ret = pm_runtime_get_sync(tspi->dev); if (ret < 0) { dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret); @@ -999,15 +996,6 @@ static irqreturn_t tegra_slink_isr(int irq, void *context_data) return IRQ_WAKE_THREAD; } -static void tegra_slink_parse_dt(struct tegra_slink_data *tspi) -{ - struct device_node *np = tspi->dev->of_node; - - if (of_property_read_u32(np, "spi-max-frequency", - &tspi->spi_max_frequency)) - tspi->spi_max_frequency = 25000000; /* 25MHz */ -} - static const struct tegra_slink_chip_data tegra30_spi_cdata = { .cs_hold_time = true, }; @@ -1062,7 +1050,9 @@ static int tegra_slink_probe(struct platform_device *pdev) tspi->chip_data = cdata; spin_lock_init(&tspi->lock); - tegra_slink_parse_dt(tspi); + if (of_property_read_u32(tspi->dev->of_node, "spi-max-frequency", + &master->max_speed_hz)) + master->max_speed_hz = 25000000; /* 25MHz */ r = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!r) { |
