clk: imx8mn: Add GIC clock

This is enabled by default but if it's not explicitly defined and marked
as critical then its parent might get turned off.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

drivers/clk/imx/clk-imx8mn.c

@@ -271,6 +271,10 @@ static const char * const imx8mn_usb_phy_sels[] = {"osc_24m", "sys_pll1_100m", "
 						   "sys_pll2_100m", "sys_pll2_200m", "clk_ext2",
 						   "clk_ext3", "audio_pll2_out", };
 
+static const char * const imx8mn_gic_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_40m",
+					"sys_pll2_100m", "sys_pll1_800m", "clk_ext2",
+					"clk_ext4", "audio_pll2_out" };
+
 static const char * const imx8mn_ecspi1_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_40m",
 						  "sys_pll1_160m", "sys_pll1_800m", "sys_pll3_out",
 						  "sys_pll2_250m", "audio_pll2_out", };
@@ -524,6 +528,7 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
 	clks[IMX8MN_CLK_UART4] = imx8m_clk_composite("uart4", imx8mn_uart4_sels, base + 0xb080);
 	clks[IMX8MN_CLK_USB_CORE_REF] = imx8m_clk_composite("usb_core_ref", imx8mn_usb_core_sels, base + 0xb100);
 	clks[IMX8MN_CLK_USB_PHY_REF] = imx8m_clk_composite("usb_phy_ref", imx8mn_usb_phy_sels, base + 0xb180);
+	clks[IMX8MN_CLK_GIC] = imx8m_clk_composite_critical("gic", imx8mn_gic_sels, base + 0xb200);
 	clks[IMX8MN_CLK_ECSPI1] = imx8m_clk_composite("ecspi1", imx8mn_ecspi1_sels, base + 0xb280);
 	clks[IMX8MN_CLK_ECSPI2] = imx8m_clk_composite("ecspi2", imx8mn_ecspi2_sels, base + 0xb300);
 	clks[IMX8MN_CLK_PWM1] = imx8m_clk_composite("pwm1", imx8mn_pwm1_sels, base + 0xb380);

include/dt-bindings/clock/imx8mn-clock.h

@@ -209,7 +209,8 @@
 #define IMX8MN_CLK_ARM				191
 #define IMX8MN_CLK_NAND_USDHC_BUS_RAWNAND_CLK	192
 #define IMX8MN_CLK_GPU_CORE_ROOT		193
+#define IMX8MN_CLK_GIC				194
 
-#define IMX8MN_CLK_END				194
+#define IMX8MN_CLK_END				195
 
 #endif