From: Simon Glass <sjg@chromium.org>
Date: Sun, 19 Apr 2015 15:05:40 +0000 (-0600)
Subject: dm: spi: Correct SPI claim/release_bus() methods
X-Git-Tag: v2025.01-rc5-pxa1908~13111^2~5
X-Git-Url: http://git.dujemihanovic.xyz/contact?a=commitdiff_plain;h=9694b724421b88acf7d553a55e4a43fa4e25e7be;p=u-boot.git
dm: spi: Correct SPI claim/release_bus() methods
These methods should be passed a slave device, not a bus. This matches the
old SPI interface. It is important to know which device is claiming the bus
so passing a bus is not that useful.
Reported-by: Haikun Wang <haikun.wang@freescale.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Peng Fan <Peng.Fan@freescale.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
---
diff --git a/drivers/spi/exynos_spi.c b/drivers/spi/exynos_spi.c
index a46d8c1876..67f6b2d7cd 100644
--- a/drivers/spi/exynos_spi.c
+++ b/drivers/spi/exynos_spi.c
@@ -296,8 +296,9 @@ static int exynos_spi_probe(struct udevice *bus)
return 0;
}
-static int exynos_spi_claim_bus(struct udevice *bus)
+static int exynos_spi_claim_bus(struct udevice *dev)
{
+ struct udevice *bus = dev->parent;
struct exynos_spi_priv *priv = dev_get_priv(bus);
exynos_pinmux_config(priv->periph_id, PINMUX_FLAG_NONE);
@@ -308,8 +309,9 @@ static int exynos_spi_claim_bus(struct udevice *bus)
return 0;
}
-static int exynos_spi_release_bus(struct udevice *bus)
+static int exynos_spi_release_bus(struct udevice *dev)
{
+ struct udevice *bus = dev->parent;
struct exynos_spi_priv *priv = dev_get_priv(bus);
spi_flush_fifo(priv->regs);
diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c
index 866c48f243..83fe8e0d69 100644
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -67,7 +67,7 @@ int spi_claim_bus(struct spi_slave *slave)
if (ret)
return ret;
- return ops->claim_bus ? ops->claim_bus(bus) : 0;
+ return ops->claim_bus ? ops->claim_bus(dev) : 0;
}
void spi_release_bus(struct spi_slave *slave)
@@ -77,7 +77,7 @@ void spi_release_bus(struct spi_slave *slave)
struct dm_spi_ops *ops = spi_get_ops(bus);
if (ops->release_bus)
- ops->release_bus(bus);
+ ops->release_bus(dev);
}
int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c
index 53ff9ea221..4bec66309e 100644
--- a/drivers/spi/tegra114_spi.c
+++ b/drivers/spi/tegra114_spi.c
@@ -153,8 +153,9 @@ static int tegra114_spi_probe(struct udevice *bus)
return 0;
}
-static int tegra114_spi_claim_bus(struct udevice *bus)
+static int tegra114_spi_claim_bus(struct udevice *dev)
{
+ struct udevice *bus = dev->parent;
struct tegra114_spi_priv *priv = dev_get_priv(bus);
struct spi_regs *regs = priv->regs;
diff --git a/drivers/spi/tegra20_sflash.c b/drivers/spi/tegra20_sflash.c
index 78c74cdf37..82c1b84f3b 100644
--- a/drivers/spi/tegra20_sflash.c
+++ b/drivers/spi/tegra20_sflash.c
@@ -125,8 +125,9 @@ static int tegra20_sflash_probe(struct udevice *bus)
return 0;
}
-static int tegra20_sflash_claim_bus(struct udevice *bus)
+static int tegra20_sflash_claim_bus(struct udevice *dev)
{
+ struct udevice *bus = dev->parent;
struct tegra20_sflash_priv *priv = dev_get_priv(bus);
struct spi_regs *regs = priv->regs;
u32 reg;
diff --git a/drivers/spi/tegra20_slink.c b/drivers/spi/tegra20_slink.c
index 597d6ad5cc..f6fb89b393 100644
--- a/drivers/spi/tegra20_slink.c
+++ b/drivers/spi/tegra20_slink.c
@@ -141,8 +141,9 @@ static int tegra30_spi_probe(struct udevice *bus)
return 0;
}
-static int tegra30_spi_claim_bus(struct udevice *bus)
+static int tegra30_spi_claim_bus(struct udevice *dev)
{
+ struct udevice *bus = dev->parent;
struct tegra30_spi_priv *priv = dev_get_priv(bus);
struct spi_regs *regs = priv->regs;
u32 reg;
diff --git a/include/spi.h b/include/spi.h
index 78290633a1..9495ca53c9 100644
--- a/include/spi.h
+++ b/include/spi.h
@@ -386,12 +386,12 @@ struct dm_spi_ops {
* allowed to claim the same bus for several slaves without releasing
* the bus in between.
*
- * @bus: The SPI slave
+ * @dev: The SPI slave
*
* Returns: 0 if the bus was claimed successfully, or a negative value
* if it wasn't.
*/
- int (*claim_bus)(struct udevice *bus);
+ int (*claim_bus)(struct udevice *dev);
/**
* Release the SPI bus
@@ -400,9 +400,9 @@ struct dm_spi_ops {
* all transfers have finished. It may disable any SPI hardware as
* appropriate.
*
- * @bus: The SPI slave
+ * @dev: The SPI slave
*/
- int (*release_bus)(struct udevice *bus);
+ int (*release_bus)(struct udevice *dev);
/**
* Set the word length for SPI transactions
@@ -414,7 +414,7 @@ struct dm_spi_ops {
*
* Returns: 0 on success, -ve on failure.
*/
- int (*set_wordlen)(struct udevice *bus, unsigned int wordlen);
+ int (*set_wordlen)(struct udevice *dev, unsigned int wordlen);
/**
* SPI transfer