There are clock assignments in all i.MX7D dtb files for UART1,
below is the example in imx7d-sdb.dts, so setting UART1 clock
in clock driver is NOT necessary, actually, module clocks setting
should be done in module driver.

&uart1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_uart1>;
        assigned-clocks = <&clks IMX7D_UART1_ROOT_SRC>;
        assigned-clock-parents = <&clks IMX7D_PLL_SYS_MAIN_240M_CLK>;
        status = "okay";
};

Signed-off-by: Anson Huang <[email protected]>
---
 drivers/clk/imx/clk-imx7d.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/clk/imx/clk-imx7d.c b/drivers/clk/imx/clk-imx7d.c
index adb08f6..06c105d 100644
--- a/drivers/clk/imx/clk-imx7d.c
+++ b/drivers/clk/imx/clk-imx7d.c
@@ -886,9 +886,6 @@ static void __init imx7d_clocks_init(struct device_node 
*ccm_node)
        /* use old gpt clk setting, gpt1 root clk must be twice as gpt counter 
freq */
        clk_set_parent(clks[IMX7D_GPT1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
 
-       /* set uart module clock's parent clock source that must be great then 
80MHz */
-       clk_set_parent(clks[IMX7D_UART1_ROOT_SRC], clks[IMX7D_OSC_24M_CLK]);
-
        /* Set clock rate for USBPHY, the USB_PLL at CCM is from USBOTG2 */
        clks[IMX7D_USB1_MAIN_480M_CLK] = 
imx_clk_fixed_factor("pll_usb1_main_clk", "osc", 20, 1);
        clks[IMX7D_USB_MAIN_480M_CLK] = 
imx_clk_fixed_factor("pll_usb_main_clk", "osc", 20, 1);
-- 
2.7.4

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