From 15c64ff7625513c551e2b50c1ae28f729b61c5d3 Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Wed, 19 Jun 2019 15:12:40 +0800 Subject: [PATCH] clk: imx8mq: Keep uart clocks on during system boot Call imx_register_uart_clocks() API to keep uart clocks enabled when earlyprintk or earlycon is active. Signed-off-by: Anson Huang Signed-off-by: Shawn Guo --- drivers/clk/imx/clk-imx8mq.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/clk/imx/clk-imx8mq.c b/drivers/clk/imx/clk-imx8mq.c index 5fbc2a7..d407a07 100644 --- a/drivers/clk/imx/clk-imx8mq.c +++ b/drivers/clk/imx/clk-imx8mq.c @@ -272,6 +272,14 @@ static const char * const imx8mq_clko2_sels[] = {"osc_25m", "sys2_pll_200m", "sy static struct clk_onecell_data clk_data; +static struct clk ** const uart_clks[] = { + &clks[IMX8MQ_CLK_UART1_ROOT], + &clks[IMX8MQ_CLK_UART2_ROOT], + &clks[IMX8MQ_CLK_UART3_ROOT], + &clks[IMX8MQ_CLK_UART4_ROOT], + NULL +}; + static int imx8mq_clocks_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -555,6 +563,8 @@ static int imx8mq_clocks_probe(struct platform_device *pdev) err = of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); WARN_ON(err); + imx_register_uart_clocks(uart_clks); + return err; } -- 2.7.4