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Subject[PATCH] clk: imx8mn: Keep uart clocks on for early console
Date
From: Anson Huang <Anson.Huang@nxp.com>

Call imx_register_uart_clocks() API to keep uart clocks enabled
when earlyprintk or earlycon is active.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
drivers/clk/imx/clk-imx8mn.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index 07481a5..ecd1062 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -355,6 +355,14 @@ static const char * const imx8mn_clko2_sels[] = {"osc_24m", "sys_pll2_200m", "sy
static struct clk *clks[IMX8MN_CLK_END];
static struct clk_onecell_data clk_data;

+static struct clk ** const uart_clks[] = {
+ &clks[IMX8MN_CLK_UART1_ROOT],
+ &clks[IMX8MN_CLK_UART2_ROOT],
+ &clks[IMX8MN_CLK_UART3_ROOT],
+ &clks[IMX8MN_CLK_UART4_ROOT],
+ NULL
+};
+
static int imx8mn_clocks_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -612,6 +620,8 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
goto unregister_clks;
}

+ imx_register_uart_clocks(uart_clks);
+
return 0;

unregister_clks:
--
2.7.4
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