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Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/fsl', 'spi/topic/fsl-espi' and 'spi/topic/id-const' into spi-next

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This commit is contained in:
Mark Brown
2014-06-02 17:08:38 +01:00
parent 446fe5e2d5 bf61fb805c 7a40054361 a2cb1be182 b2fb1872d3
commit 8fb3b066a6
15 changed files with 125 additions and 209 deletions
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40
drivers/spi/spi-fsl-espi.c
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@@ -348,7 +348,7 @@ static void fsl_espi_cmd_trans(struct spi_message *m,
}
espi_trans->tx_buf = local_buf;
espi_trans->rx_buf = local_buf + espi_trans->n_tx;
espi_trans->rx_buf = local_buf;
fsl_espi_do_trans(m, espi_trans);
espi_trans->actual_length = espi_trans->len;
@@ -397,7 +397,7 @@ static void fsl_espi_rw_trans(struct spi_message *m,
espi_trans->n_rx = trans_len;
espi_trans->len = trans_len + n_tx;
espi_trans->tx_buf = local_buf;
espi_trans->rx_buf = local_buf + n_tx;
espi_trans->rx_buf = local_buf;
fsl_espi_do_trans(m, espi_trans);
memcpy(rx_buf + pos, espi_trans->rx_buf + n_tx, trans_len);
@@ -458,7 +458,7 @@ static int fsl_espi_setup(struct spi_device *spi)
return -EINVAL;
if (!cs) {
cs = kzalloc(sizeof *cs, GFP_KERNEL);
cs = devm_kzalloc(&spi->dev, sizeof(*cs), GFP_KERNEL);
if (!cs)
return -ENOMEM;
spi->controller_state = cs;
@@ -586,8 +586,10 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
struct spi_master *master;
struct mpc8xxx_spi *mpc8xxx_spi;
struct fsl_espi_reg *reg_base;
u32 regval;
int i, ret = 0;
struct device_node *nc;
const __be32 *prop;
u32 regval, csmode;
int i, len, ret = 0;
master = spi_alloc_master(dev, sizeof(struct mpc8xxx_spi));
if (!master) {
@@ -634,8 +636,32 @@ static struct spi_master * fsl_espi_probe(struct device *dev,
mpc8xxx_spi_write_reg(&reg_base->event, 0xffffffff);
/* Init eSPI CS mode register */
for (i = 0; i < pdata->max_chipselect; i++)
mpc8xxx_spi_write_reg(&reg_base->csmode[i], CSMODE_INIT_VAL);
for_each_available_child_of_node(master->dev.of_node, nc) {
/* get chip select */
prop = of_get_property(nc, "reg", &len);
if (!prop || len < sizeof(*prop))
continue;
i = be32_to_cpup(prop);
if (i < 0 || i >= pdata->max_chipselect)
continue;
csmode = CSMODE_INIT_VAL;
/* check if CSBEF is set in device tree */
prop = of_get_property(nc, "fsl,csbef", &len);
if (prop && len >= sizeof(*prop)) {
csmode &= ~(CSMODE_BEF(0xf));
csmode |= CSMODE_BEF(be32_to_cpup(prop));
}
/* check if CSAFT is set in device tree */
prop = of_get_property(nc, "fsl,csaft", &len);
if (prop && len >= sizeof(*prop)) {
csmode &= ~(CSMODE_AFT(0xf));
csmode |= CSMODE_AFT(be32_to_cpup(prop));
}
mpc8xxx_spi_write_reg(&reg_base->csmode[i], csmode);
dev_info(dev, "cs=%d, init_csmode=0x%x\n", i, csmode);
}
/* Enable SPI interface */
regval = pdata->initial_spmode | SPMODE_INIT_VAL | SPMODE_ENABLE;