From mboxrd@z Thu Jan 1 00:00:00 1970 From: l.stach@pengutronix.de (Lucas Stach) Date: Mon, 21 Sep 2015 18:54:01 +0200 Subject: [PATCH v4 5/8] clk: imx35: retain early UART clocks during kernel init In-Reply-To: <1442854444-4460-1-git-send-email-l.stach@pengutronix.de> References: <1442854444-4460-1-git-send-email-l.stach@pengutronix.de> Message-ID: <1442854444-4460-6-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-imx35.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/clk/imx/clk-imx35.c b/drivers/clk/imx/clk-imx35.c index 8623cd4e49fd..ba8b33328a8d 100644 --- a/drivers/clk/imx/clk-imx35.c +++ b/drivers/clk/imx/clk-imx35.c @@ -84,6 +84,14 @@ enum mx35_clks { static struct clk *clk[clk_max]; +static struct clk ** const uart_clks[] __initconst = { + &clk[ipg], + &clk[uart1_gate], + &clk[uart2_gate], + &clk[uart3_gate], + NULL +}; + int __init mx35_clocks_init(void) { void __iomem *base; @@ -296,6 +304,8 @@ int __init mx35_clocks_init(void) */ clk_prepare_enable(clk[scc_gate]); + imx_register_uart_clocks(uart_clks); + imx_print_silicon_rev("i.MX35", mx35_revision()); mxc_timer_init(MX35_GPT1_BASE_ADDR, MX35_INT_GPT, GPT_TYPE_IMX31); -- 2.5.1