diff options
Diffstat (limited to 'drivers/memory/pl353-smc.c')
-rw-r--r-- | drivers/memory/pl353-smc.c | 57 |
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); |