#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <linux/gpio.h>
+#include <linux/of.h>
#ifdef CONFIG_SUPERH
#include <asm/sh_bios.h>
desc = s->desc_rx[new];
if (dma_async_is_tx_complete(s->chan_rx, s->active_rx, NULL, NULL) !=
- DMA_SUCCESS) {
+ DMA_COMPLETE) {
/* Handle incomplete DMA receive */
struct dma_chan *chan = s->chan_rx;
struct shdma_desc *sh_desc = container_of(desc,
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id of_sci_match[] = {
+ { .compatible = "renesas,sci-SCI-uart",
+ .data = (void *)PORT_SCI },
+ { .compatible = "renesas,sci-SCIF-uart",
+ .data = (void *)PORT_SCIF },
+ { .compatible = "renesas,sci-IRDA-uart",
+ .data = (void *)PORT_IRDA },
+ { .compatible = "renesas,sci-SCIFA-uart",
+ .data = (void *)PORT_SCIFA },
+ { .compatible = "renesas,sci-SCIFB-uart",
+ .data = (void *)PORT_SCIFB },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_sci_match);
+
+static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
+ int *dev_id)
+{
+ struct plat_sci_port *p;
+ struct device_node *np = pdev->dev.of_node;
+ const struct of_device_id *match;
+ struct resource *res;
+ const __be32 *prop;
+ int i, irq, val;
+
+ match = of_match_node(of_sci_match, pdev->dev.of_node);
+ if (!match || !match->data) {
+ dev_err(&pdev->dev, "OF match error\n");
+ return NULL;
+ }
+
+ p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL);
+ if (!p) {
+ dev_err(&pdev->dev, "failed to allocate DT config data\n");
+ return NULL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "failed to get I/O memory\n");
+ return NULL;
+ }
+ p->mapbase = res->start;
+
+ for (i = 0; i < SCIx_NR_IRQS; i++) {
+ irq = platform_get_irq(pdev, i);
+ if (irq < 0) {
+ dev_err(&pdev->dev, "failed to get irq data %d\n", i);
+ return NULL;
+ }
+ p->irqs[i] = irq;
+ }
+
+ prop = of_get_property(np, "cell-index", NULL);
+ if (!prop) {
+ dev_err(&pdev->dev, "required DT prop cell-index missing\n");
+ return NULL;
+ }
+ *dev_id = be32_to_cpup(prop);
+
+ prop = of_get_property(np, "renesas,scscr", NULL);
+ if (!prop) {
+ dev_err(&pdev->dev, "required DT prop scscr missing\n");
+ return NULL;
+ }
+ p->scscr = be32_to_cpup(prop);
+
+ prop = of_get_property(np, "renesas,scbrr-algo-id", NULL);
+ if (!prop) {
+ dev_err(&pdev->dev, "required DT prop scbrr-algo-id missing\n");
+ return NULL;
+ }
+ val = be32_to_cpup(prop);
+ if (val <= SCBRR_ALGO_INVALID || val >= SCBRR_NR_ALGOS) {
+ dev_err(&pdev->dev, "DT prop scbrr-algo-id out of range\n");
+ return NULL;
+ }
+ p->scbrr_algo_id = val;
+
+ p->flags = UPF_IOREMAP;
+ if (of_get_property(np, "renesas,autoconf", NULL))
+ p->flags |= UPF_BOOT_AUTOCONF;
+
+ prop = of_get_property(np, "renesas,regtype", NULL);
+ if (prop) {
+ val = be32_to_cpup(prop);
+ if (val < SCIx_PROBE_REGTYPE || val >= SCIx_NR_REGTYPES) {
+ dev_err(&pdev->dev, "DT prop regtype out of range\n");
+ return NULL;
+ }
+ p->regtype = val;
+ }
+
+ p->type = (unsigned int)match->data;
+
+ return p;
+}
+#else
+static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
+ int *dev_id)
+{
+ return NULL;
+}
+#endif /* CONFIG_OF */
+
static int sci_probe_single(struct platform_device *dev,
unsigned int index,
struct plat_sci_port *p,
static int sci_probe(struct platform_device *dev)
{
- struct plat_sci_port *p = dev_get_platdata(&dev->dev);
- struct sci_port *sp = &sci_ports[dev->id];
- int ret;
+ struct plat_sci_port *p;
+ struct sci_port *sp;
+ int ret, dev_id = dev->id;
/*
* If we've come here via earlyprintk initialization, head off to
if (is_early_platform_device(dev))
return sci_probe_earlyprintk(dev);
+ if (dev->dev.of_node)
+ p = sci_parse_dt(dev, &dev_id);
+ else
+ p = dev_get_platdata(&dev->dev);
+
+ if (!p) {
+ dev_err(&dev->dev, "no setup data supplied\n");
+ return -EINVAL;
+ }
+
+ sp = &sci_ports[dev_id];
platform_set_drvdata(dev, sp);
- ret = sci_probe_single(dev, dev->id, p, sp);
+ ret = sci_probe_single(dev, dev_id, p, sp);
if (ret)
return ret;
.name = "sh-sci",
.owner = THIS_MODULE,
.pm = &sci_dev_pm_ops,
+ .of_match_table = of_match_ptr(of_sci_match),
},
};