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path: root/drivers/memory/ti-aemif.c
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Diffstat (limited to 'drivers/memory/ti-aemif.c')
-rw-r--r--drivers/memory/ti-aemif.c74
1 files changed, 14 insertions, 60 deletions
diff --git a/drivers/memory/ti-aemif.c b/drivers/memory/ti-aemif.c
index e192db9e0e4b..d54dc3cfff73 100644
--- a/drivers/memory/ti-aemif.c
+++ b/drivers/memory/ti-aemif.c
@@ -17,7 +17,6 @@
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
-#include <linux/platform_data/ti-aemif.h>
#define TA_SHIFT 2
#define RHOLD_SHIFT 4
@@ -330,42 +329,27 @@ static int aemif_probe(struct platform_device *pdev)
int ret = -ENODEV;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
- struct device_node *child_np;
struct aemif_device *aemif;
- struct aemif_platform_data *pdata;
- struct of_dev_auxdata *dev_lookup;
aemif = devm_kzalloc(dev, sizeof(*aemif), GFP_KERNEL);
if (!aemif)
return -ENOMEM;
- pdata = dev_get_platdata(&pdev->dev);
- dev_lookup = pdata ? pdata->dev_lookup : NULL;
-
platform_set_drvdata(pdev, aemif);
- aemif->clk = devm_clk_get(dev, NULL);
- if (IS_ERR(aemif->clk)) {
- dev_err(dev, "cannot get clock 'aemif'\n");
- return PTR_ERR(aemif->clk);
- }
-
- ret = clk_prepare_enable(aemif->clk);
- if (ret)
- return ret;
+ aemif->clk = devm_clk_get_enabled(dev, NULL);
+ if (IS_ERR(aemif->clk))
+ return dev_err_probe(dev, PTR_ERR(aemif->clk),
+ "cannot get clock 'aemif'\n");
aemif->clk_rate = clk_get_rate(aemif->clk) / MSEC_PER_SEC;
if (np && of_device_is_compatible(np, "ti,da850-aemif"))
aemif->cs_offset = 2;
- else if (pdata)
- aemif->cs_offset = pdata->cs_offset;
aemif->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(aemif->base)) {
- ret = PTR_ERR(aemif->base);
- goto error;
- }
+ if (IS_ERR(aemif->base))
+ return PTR_ERR(aemif->base);
if (np) {
/*
@@ -374,17 +358,10 @@ static int aemif_probe(struct platform_device *pdev)
* functions iterate over these nodes and update the cs data
* array.
*/
- for_each_available_child_of_node(np, child_np) {
+ for_each_available_child_of_node_scoped(np, child_np) {
ret = of_aemif_parse_abus_config(pdev, child_np);
- if (ret < 0) {
- of_node_put(child_np);
- goto error;
- }
- }
- } else if (pdata && pdata->num_abus_data > 0) {
- for (i = 0; i < pdata->num_abus_data; i++, aemif->num_cs++) {
- aemif->cs_data[i].cs = pdata->abus_data[i].cs;
- aemif_get_hw_params(pdev, i);
+ if (ret < 0)
+ return ret;
}
}
@@ -393,7 +370,7 @@ static int aemif_probe(struct platform_device *pdev)
if (ret < 0) {
dev_err(dev, "Error configuring chip select %d\n",
aemif->cs_data[i].cs);
- goto error;
+ return ret;
}
}
@@ -402,41 +379,18 @@ static int aemif_probe(struct platform_device *pdev)
* child will be probed after the AEMIF timing parameters are set.
*/
if (np) {
- for_each_available_child_of_node(np, child_np) {
- ret = of_platform_populate(child_np, NULL,
- dev_lookup, dev);
- if (ret < 0) {
- of_node_put(child_np);
- goto error;
- }
- }
- } else if (pdata) {
- for (i = 0; i < pdata->num_sub_devices; i++) {
- pdata->sub_devices[i].dev.parent = dev;
- ret = platform_device_register(&pdata->sub_devices[i]);
- if (ret) {
- dev_warn(dev, "Error register sub device %s\n",
- pdata->sub_devices[i].name);
- }
+ for_each_available_child_of_node_scoped(np, child_np) {
+ ret = of_platform_populate(child_np, NULL, NULL, dev);
+ if (ret < 0)
+ return ret;
}
}
return 0;
-error:
- clk_disable_unprepare(aemif->clk);
- return ret;
-}
-
-static void aemif_remove(struct platform_device *pdev)
-{
- struct aemif_device *aemif = platform_get_drvdata(pdev);
-
- clk_disable_unprepare(aemif->clk);
}
static struct platform_driver aemif_driver = {
.probe = aemif_probe,
- .remove_new = aemif_remove,
.driver = {
.name = "ti-aemif",
.of_match_table = of_match_ptr(aemif_of_match),