[V5,3/5] clk: imx: Add API for clk unregister when driver probe fail

Commit Message

Anson Huang June 14, 2019, 8:37 a.m. UTC

From: Anson Huang <[e-mail]>

For i.MX clock drivers probe fail case, clks should be unregistered
in the return path, this patch adds a common API for i.MX clock
drivers to unregister clocks when fail.

Signed-off-by: Anson Huang <[e-mail]>
---
New patch.
---
 drivers/clk/imx/clk.c | 8 ++++++++
 drivers/clk/imx/clk.h | 1 +
 2 files changed, 9 insertions(+)

Patch

diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index f241189..14a6161 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -13,6 +13,14 @@ 
 
 DEFINE_SPINLOCK(imx_ccm_lock);
 
+void imx_unregister_clocks(struct clk *clks[], unsigned int count)
+{
+	unsigned int i;
+
+	for (i = 0; i < count; i++)
+		clk_unregister(clks[i]);
+}
+
 void __init imx_mmdc_mask_handshake(void __iomem *ccm_base,
 				    unsigned int chn)
 {
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 19d7b8b..bb4ec1b 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -12,6 +12,7 @@  void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count);
 void imx_register_uart_clocks(struct clk ** const clks[]);
 void imx_register_uart_clocks_hws(struct clk_hw ** const hws[]);
 void imx_mmdc_mask_handshake(void __iomem *ccm_base, unsigned int chn);
+void imx_unregister_clocks(struct clk *clks[], unsigned int count);
 
 extern void imx_cscmr1_fixup(u32 *val);