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clk: imx7d: enable uart2 clock when m4 is enabled 

The UART clock used by M4 maybe turned off by Linux side, after the
initialization of the clocks. Enable the UART2 clock when M4 is enabled.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
5.4-rM2-2.2.x-imx-squashed
Richard Zhu 2019-07-22 16:01:42 +08:00 committed by Dong Aisheng
parent 2777135445
commit a065a0f3c6
1 changed files with 1 additions and 0 deletions
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drivers/clk/imx/clk-imx7d.c
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@ -891,6 +891,7 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
if (imx_src_is_m4_enabled()) {
clk_set_parent(hws[IMX7D_ARM_M4_ROOT_SRC]->clk, hws[IMX7D_PLL_SYS_MAIN_240M_CLK]->clk);
clk_prepare_enable(hws[IMX7D_ARM_M4_ROOT_CLK]->clk);
clk_prepare_enable(hws[IMX7D_UART2_ROOT_CLK]->clk);
}
/* use old gpt clk setting, gpt1 root clk must be twice as gpt counter freq */