uart4_ipg 81 drivers/clk/imx/clk-imx25.c &clk[uart4_ipg], uart4_ipg 213 drivers/clk/imx/clk-imx25.c clk[uart4_ipg] = imx_clk_gate("uart4_ipg", "ipg", ccm(CCM_CGCR2), 17);