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path: root/drivers/memory/pl353-smc.c
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Diffstat (limited to 'drivers/memory/pl353-smc.c')
-rw-r--r--drivers/memory/pl353-smc.c57
1 files changed, 11 insertions, 46 deletions
diff --git a/drivers/memory/pl353-smc.c b/drivers/memory/pl353-smc.c
index 56e51737c81f..28a8cc56003c 100644
--- a/drivers/memory/pl353-smc.c
+++ b/drivers/memory/pl353-smc.c
@@ -74,73 +74,39 @@ static int pl353_smc_probe(struct amba_device *adev, const struct amba_id *id)
struct device_node *of_node = adev->dev.of_node;
const struct of_device_id *match = NULL;
struct pl353_smc_data *pl353_smc;
- struct device_node *child;
- int err;
pl353_smc = devm_kzalloc(&adev->dev, sizeof(*pl353_smc), GFP_KERNEL);
if (!pl353_smc)
return -ENOMEM;
- pl353_smc->aclk = devm_clk_get(&adev->dev, "apb_pclk");
- if (IS_ERR(pl353_smc->aclk)) {
- dev_err(&adev->dev, "aclk clock not found.\n");
- return PTR_ERR(pl353_smc->aclk);
- }
-
- pl353_smc->memclk = devm_clk_get(&adev->dev, "memclk");
- if (IS_ERR(pl353_smc->memclk)) {
- dev_err(&adev->dev, "memclk clock not found.\n");
- return PTR_ERR(pl353_smc->memclk);
- }
+ pl353_smc->aclk = devm_clk_get_enabled(&adev->dev, "apb_pclk");
+ if (IS_ERR(pl353_smc->aclk))
+ return dev_err_probe(&adev->dev, PTR_ERR(pl353_smc->aclk),
+ "aclk clock not found.\n");
- err = clk_prepare_enable(pl353_smc->aclk);
- if (err) {
- dev_err(&adev->dev, "Unable to enable AXI clock.\n");
- return err;
- }
-
- err = clk_prepare_enable(pl353_smc->memclk);
- if (err) {
- dev_err(&adev->dev, "Unable to enable memory clock.\n");
- goto disable_axi_clk;
- }
+ pl353_smc->memclk = devm_clk_get_enabled(&adev->dev, "memclk");
+ if (IS_ERR(pl353_smc->memclk))
+ return dev_err_probe(&adev->dev, PTR_ERR(pl353_smc->memclk),
+ "memclk clock not found.\n");
amba_set_drvdata(adev, pl353_smc);
/* Find compatible children. Only a single child is supported */
- for_each_available_child_of_node(of_node, child) {
+ for_each_available_child_of_node_scoped(of_node, child) {
match = of_match_node(pl353_smc_supported_children, child);
if (!match) {
dev_warn(&adev->dev, "unsupported child node\n");
continue;
}
+ of_platform_device_create(child, NULL, &adev->dev);
break;
}
if (!match) {
- err = -ENODEV;
dev_err(&adev->dev, "no matching children\n");
- goto disable_mem_clk;
+ return -ENODEV;
}
- of_platform_device_create(child, NULL, &adev->dev);
- of_node_put(child);
-
return 0;
-
-disable_mem_clk:
- clk_disable_unprepare(pl353_smc->memclk);
-disable_axi_clk:
- clk_disable_unprepare(pl353_smc->aclk);
-
- return err;
-}
-
-static void pl353_smc_remove(struct amba_device *adev)
-{
- struct pl353_smc_data *pl353_smc = amba_get_drvdata(adev);
-
- clk_disable_unprepare(pl353_smc->memclk);
- clk_disable_unprepare(pl353_smc->aclk);
}
static const struct amba_id pl353_ids[] = {
@@ -159,7 +125,6 @@ static struct amba_driver pl353_smc_driver = {
},
.id_table = pl353_ids,
.probe = pl353_smc_probe,
- .remove = pl353_smc_remove,
};
module_amba_driver(pl353_smc_driver);