From 517c7f9302efdde86fe8ebca80bc9ef826fa62e5 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Mon, 21 Sep 2015 18:53:58 +0200 Subject: [PATCH] clk: imx25: retain early UART clocks during kernel init Make sure to keep UART clocks enabled during kernel init if earlyprintk or earlycon are active. Signed-off-by: Lucas Stach Signed-off-by: Shawn Guo --- drivers/clk/imx/clk-imx25.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c index ec1a4c1dacf1..c4c141cab444 100644 --- a/drivers/clk/imx/clk-imx25.c +++ b/drivers/clk/imx/clk-imx25.c @@ -86,6 +86,16 @@ enum mx25_clks { static struct clk *clk[clk_max]; +static struct clk ** const uart_clks[] __initconst = { + &clk[uart_ipg_per], + &clk[uart1_ipg], + &clk[uart2_ipg], + &clk[uart3_ipg], + &clk[uart4_ipg], + &clk[uart5_ipg], + NULL +}; + static int __init __mx25_clocks_init(unsigned long osc_rate, void __iomem *ccm_base) { @@ -233,6 +243,8 @@ static int __init __mx25_clocks_init(unsigned long osc_rate, */ clk_set_parent(clk[cko_sel], clk[ipg]); + imx_register_uart_clocks(uart_clks); + return 0; } -- 2.30.2