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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
commitd0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch)
tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/clk/hisilicon/clk.c
parente914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff)
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/clk/hisilicon/clk.c')
-rw-r--r--drivers/clk/hisilicon/clk.c89
1 files changed, 79 insertions, 10 deletions
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index 9b15adbfc..9ba2d91f4 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -37,6 +37,35 @@
static DEFINE_SPINLOCK(hisi_clk_lock);
+struct hisi_clock_data *hisi_clk_alloc(struct platform_device *pdev,
+ int nr_clks)
+{
+ struct hisi_clock_data *clk_data;
+ struct resource *res;
+ struct clk **clk_table;
+
+ clk_data = devm_kmalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL);
+ if (!clk_data)
+ return NULL;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ clk_data->base = devm_ioremap(&pdev->dev,
+ res->start, resource_size(res));
+ if (!clk_data->base)
+ return NULL;
+
+ clk_table = devm_kmalloc(&pdev->dev, sizeof(struct clk *) * nr_clks,
+ GFP_KERNEL);
+ if (!clk_table)
+ return NULL;
+
+ clk_data->clk_data.clks = clk_table;
+ clk_data->clk_data.clk_num = nr_clks;
+
+ return clk_data;
+}
+EXPORT_SYMBOL_GPL(hisi_clk_alloc);
+
struct hisi_clock_data *hisi_clk_init(struct device_node *np,
int nr_clks)
{
@@ -73,7 +102,7 @@ err:
}
EXPORT_SYMBOL_GPL(hisi_clk_init);
-void hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
+int hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
int nums, struct hisi_clock_data *data)
{
struct clk *clk;
@@ -87,14 +116,22 @@ void hisi_clk_register_fixed_rate(const struct hisi_fixed_rate_clock *clks,
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ goto err;
}
data->clk_data.clks[clks[i].id] = clk;
}
+
+ return 0;
+
+err:
+ while (i--)
+ clk_unregister_fixed_rate(data->clk_data.clks[clks[i].id]);
+
+ return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_fixed_rate);
-void hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *clks,
+int hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *clks,
int nums,
struct hisi_clock_data *data)
{
@@ -109,14 +146,22 @@ void hisi_clk_register_fixed_factor(const struct hisi_fixed_factor_clock *clks,
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ goto err;
}
data->clk_data.clks[clks[i].id] = clk;
}
+
+ return 0;
+
+err:
+ while (i--)
+ clk_unregister_fixed_factor(data->clk_data.clks[clks[i].id]);
+
+ return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_fixed_factor);
-void hisi_clk_register_mux(const struct hisi_mux_clock *clks,
+int hisi_clk_register_mux(const struct hisi_mux_clock *clks,
int nums, struct hisi_clock_data *data)
{
struct clk *clk;
@@ -135,7 +180,7 @@ void hisi_clk_register_mux(const struct hisi_mux_clock *clks,
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ goto err;
}
if (clks[i].alias)
@@ -143,10 +188,18 @@ void hisi_clk_register_mux(const struct hisi_mux_clock *clks,
data->clk_data.clks[clks[i].id] = clk;
}
+
+ return 0;
+
+err:
+ while (i--)
+ clk_unregister_mux(data->clk_data.clks[clks[i].id]);
+
+ return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_mux);
-void hisi_clk_register_divider(const struct hisi_divider_clock *clks,
+int hisi_clk_register_divider(const struct hisi_divider_clock *clks,
int nums, struct hisi_clock_data *data)
{
struct clk *clk;
@@ -165,7 +218,7 @@ void hisi_clk_register_divider(const struct hisi_divider_clock *clks,
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ goto err;
}
if (clks[i].alias)
@@ -173,10 +226,18 @@ void hisi_clk_register_divider(const struct hisi_divider_clock *clks,
data->clk_data.clks[clks[i].id] = clk;
}
+
+ return 0;
+
+err:
+ while (i--)
+ clk_unregister_divider(data->clk_data.clks[clks[i].id]);
+
+ return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_divider);
-void hisi_clk_register_gate(const struct hisi_gate_clock *clks,
+int hisi_clk_register_gate(const struct hisi_gate_clock *clks,
int nums, struct hisi_clock_data *data)
{
struct clk *clk;
@@ -194,7 +255,7 @@ void hisi_clk_register_gate(const struct hisi_gate_clock *clks,
if (IS_ERR(clk)) {
pr_err("%s: failed to register clock %s\n",
__func__, clks[i].name);
- continue;
+ goto err;
}
if (clks[i].alias)
@@ -202,6 +263,14 @@ void hisi_clk_register_gate(const struct hisi_gate_clock *clks,
data->clk_data.clks[clks[i].id] = clk;
}
+
+ return 0;
+
+err:
+ while (i--)
+ clk_unregister_gate(data->clk_data.clks[clks[i].id]);
+
+ return PTR_ERR(clk);
}
EXPORT_SYMBOL_GPL(hisi_clk_register_gate);