Merge https://gitlab.denx.de/u-boot/custodians/u-boot-sunxi

[oweals/u-boot.git] / drivers / spi / omap3_spi.c

diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c
index b8a0bf495ae01eae92a77ddae966e470525fdcc7..ff4c700645c3c81b3dbb9a4d482f4cc62bbf2712 100644 (file)
--- a/drivers/spi/omap3_spi.c
+++ b/drivers/spi/omap3_spi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Jagan Teki <jteki@openedev.com>
  *                   Christophe Ricard <christophe.ricard@gmail.com>
@@ -13,8 +14,6 @@
  * Copyright (C) 2005, 2006 Nokia Corporation
  *
  * Modified by Ruslan Araslanov <ruslan.araslanov@vitecmm.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -416,7 +415,7 @@ static void _omap3_spi_set_wordlen(struct omap3_spi_priv *priv)
        unsigned int confr;
 
        /* McSPI individual channel configuration */
-       confr = readl(&priv->regs->channel[priv->wordlen].chconf);
+       confr = readl(&priv->regs->channel[priv->cs].chconf);
 
        /* wordlength */
        confr &= ~OMAP3_MCSPI_CHCONF_WL_MASK;
@@ -444,9 +443,6 @@ static void spi_reset(struct mcspi *regs)
 static void _omap3_spi_claim_bus(struct omap3_spi_priv *priv)
 {
        unsigned int conf;
-
-       spi_reset(priv->regs);
-
        /*
         * setup when switching from (reset default) slave mode
         * to single-channel master mode
@@ -465,11 +461,6 @@ static inline struct omap3_spi_priv *to_omap3_spi(struct spi_slave *slave)
        return container_of(slave, struct omap3_spi_priv, slave);
 }
 
-void spi_init(void)
-{
-       /* do nothing */
-}
-
 void spi_free_slave(struct spi_slave *slave)
 {
        struct omap3_spi_priv *priv = to_omap3_spi(slave);
@@ -481,6 +472,8 @@ int spi_claim_bus(struct spi_slave *slave)
 {
        struct omap3_spi_priv *priv = to_omap3_spi(slave);
 
+       spi_reset(priv->regs);
+
        _omap3_spi_claim_bus(priv);
        _omap3_spi_set_wordlen(priv);
        _omap3_spi_set_mode(priv);
@@ -493,8 +486,7 @@ void spi_release_bus(struct spi_slave *slave)
 {
        struct omap3_spi_priv *priv = to_omap3_spi(slave);
 
-       /* Reset the SPI hardware */
-       spi_reset(priv->regs);
+       writel(OMAP3_MCSPI_MODULCTRL_MS, &priv->regs->modulctrl);
 }
 
 struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
@@ -591,6 +583,8 @@ static int omap3_spi_claim_bus(struct udevice *dev)
        struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
 
        priv->cs = slave_plat->cs;
+       priv->freq = slave_plat->max_hz;
+
        _omap3_spi_claim_bus(priv);
 
        return 0;
@@ -601,8 +595,7 @@ static int omap3_spi_release_bus(struct udevice *dev)
        struct udevice *bus = dev->parent;
        struct omap3_spi_priv *priv = dev_get_priv(bus);
 
-       /* Reset the SPI hardware */
-       spi_reset(priv->regs);
+       writel(OMAP3_MCSPI_MODULCTRL_MS, &priv->regs->modulctrl);
 
        return 0;
 }
@@ -630,9 +623,14 @@ static int omap3_spi_probe(struct udevice *dev)
                (struct omap2_mcspi_platform_config*)dev_get_driver_data(dev);
 
        priv->regs = (struct mcspi *)(devfdt_get_addr(dev) + data->regs_offset);
-       priv->pin_dir = fdtdec_get_uint(blob, node, "ti,pindir-d0-out-d1-in",
-                                           MCSPI_PINDIR_D0_IN_D1_OUT);
+       if (fdtdec_get_bool(blob, node, "ti,pindir-d0-out-d1-in"))
+               priv->pin_dir = MCSPI_PINDIR_D0_OUT_D1_IN;
+       else
+               priv->pin_dir = MCSPI_PINDIR_D0_IN_D1_OUT;
        priv->wordlen = SPI_DEFAULT_WORDLEN;
+
+       spi_reset(priv->regs);
+
        return 0;
 }
 
@@ -645,27 +643,23 @@ static int omap3_spi_xfer(struct udevice *dev, unsigned int bitlen,
        return _spi_xfer(priv, bitlen, dout, din, flags);
 }
 
-static int omap3_spi_set_speed(struct udevice *bus, unsigned int speed)
+static int omap3_spi_set_speed(struct udevice *dev, unsigned int speed)
 {
-       struct udevice *bus = dev->parent;
-       struct omap3_spi_priv *priv = dev_get_priv(bus);
-       struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
 
-       priv->cs = slave_plat->cs;
-       priv->freq = slave_plat->max_hz;
+       struct omap3_spi_priv *priv = dev_get_priv(dev);
+
+       priv->freq = speed;
        _omap3_spi_set_speed(priv);
 
        return 0;
 }
 
-static int omap3_spi_set_mode(struct udevice *bus, uint mode)
+static int omap3_spi_set_mode(struct udevice *dev, uint mode)
 {
-       struct udevice *bus = dev->parent;
-       struct omap3_spi_priv *priv = dev_get_priv(bus);
-       struct dm_spi_slave_platdata *slave_plat = dev_get_parent_platdata(dev);
+       struct omap3_spi_priv *priv = dev_get_priv(dev);
+
+       priv->mode = mode;
 
-       priv->cs = slave_plat->cs;
-       priv->mode = slave_plat->mode;
        _omap3_spi_set_mode(priv);
 
        return 0;