From mboxrd@z Thu Jan 1 00:00:00 1970 From: l.stach@pengutronix.de (Lucas Stach) Date: Fri, 4 Sep 2015 18:00:13 +0200 Subject: [PATCH v2 2/8] clk: imx25: retain early UART clocks during kernel init In-Reply-To: <1441382419-4343-1-git-send-email-l.stach@pengutronix.de> References: <1441382419-4343-1-git-send-email-l.stach@pengutronix.de> Message-ID: <1441382419-4343-3-git-send-email-l.stach@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Make sure to keep UART clocks enabled during kernel init if earlyprintk or earlycon are active. Signed-off-by: Lucas Stach --- drivers/clk/imx/clk-imx25.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c index ec1a4c1dacf1..e55acea762fb 100644 --- a/drivers/clk/imx/clk-imx25.c +++ b/drivers/clk/imx/clk-imx25.c @@ -86,6 +86,14 @@ enum mx25_clks { static struct clk *clk[clk_max]; +static struct clk **uart_clks[] __initdata = { &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 +241,8 @@ 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; } -- 2.5.0