Commit 5c678cdd authored by Lucas Stach's avatar Lucas Stach Committed by Shawn Guo
Browse files

clk: imx31: 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: default avatarLucas Stach <l.stach@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 6f187131

drivers/clk/imx/clk-imx31.c

+12 −0
Original line number Diff line number Diff line
@@ -62,6 +62,16 @@ enum mx31_clks { 
static struct clk *clk[clk_max];

static struct clk_onecell_data clk_data;



static struct clk ** const uart_clks[] __initconst = {

	&clk[ipg],

	&clk[uart1_gate],

	&clk[uart2_gate],

	&clk[uart3_gate],

	&clk[uart4_gate],

	&clk[uart5_gate],

	NULL

};



int __init mx31_clocks_init(unsigned long fref)

{

	void __iomem *base;
@@ -200,6 +210,8 @@ int __init mx31_clocks_init(unsigned long fref) 
	mx31_revision();

	clk_disable_unprepare(clk[iim_gate]);



	imx_register_uart_clocks(uart_clks);



	mxc_timer_init(MX31_GPT1_BASE_ADDR, MX31_INT_GPT, GPT_TYPE_IMX31);



	return 0;