Commit 3af4df65 authored by Lucas Stach's avatar Lucas Stach Committed by Shawn Guo
Browse files

clk: imx8mn: add clkout1/2 support 



clkout1 and clkout2 allow to supply clocks from the SoC to the board,
which is used by some board designs to provide reference clocks.

Signed-off-by: default avatarLucas Stach <l.stach@pengutronix.de>
Reviewed-by: default avatarAbel Vesa <abel.vesa@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent c1ae5c6f

drivers/clk/imx/clk-imx8mn.c

+12 −0
Original line number Diff line number Diff line
@@ -281,6 +281,11 @@ static const char * const imx8mn_clko2_sels[] = {"osc_24m", "sys_pll2_200m", "sy 
						 "sys_pll2_166m", "sys_pll3_out", "audio_pll1_out",

						 "video_pll1_out", "osc_32k", };



static const char * const clkout_sels[] = {"audio_pll1_out", "audio_pll2_out", "video_pll1_out",

					   "dummy", "dummy", "gpu_pll_out", "dummy",

					   "arm_pll_out", "sys_pll1", "sys_pll2", "sys_pll3",

					   "dummy", "dummy", "osc_24m", "dummy", "osc_32k"};



static struct clk_hw_onecell_data *clk_hw_data;

static struct clk_hw **hws;
@@ -405,6 +410,13 @@ static int imx8mn_clocks_probe(struct platform_device *pdev) 
	hws[IMX8MN_SYS_PLL2_500M] = imx_clk_hw_fixed_factor("sys_pll2_500m", "sys_pll2_500m_cg", 1, 2);

	hws[IMX8MN_SYS_PLL2_1000M] = imx_clk_hw_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1);



	hws[IMX8MN_CLK_CLKOUT1_SEL] = imx_clk_hw_mux("clkout1_sel", base + 0x128, 4, 4, clkout_sels, ARRAY_SIZE(clkout_sels));

	hws[IMX8MN_CLK_CLKOUT1_DIV] = imx_clk_hw_divider("clkout1_div", "clkout1_sel", base + 0x128, 0, 4);

	hws[IMX8MN_CLK_CLKOUT1] = imx_clk_hw_gate("clkout1", "clkout1_div", base + 0x128, 8);

	hws[IMX8MN_CLK_CLKOUT2_SEL] = imx_clk_hw_mux("clkout2_sel", base + 0x128, 20, 4, clkout_sels, ARRAY_SIZE(clkout_sels));

	hws[IMX8MN_CLK_CLKOUT2_DIV] = imx_clk_hw_divider("clkout2_div", "clkout2_sel", base + 0x128, 16, 4);

	hws[IMX8MN_CLK_CLKOUT2] = imx_clk_hw_gate("clkout2", "clkout2_div", base + 0x128, 24);



	np = dev->of_node;

	base = devm_platform_ioremap_resource(pdev, 0);

	if (WARN_ON(IS_ERR(base))) {

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

+8 −1
Original line number Diff line number Diff line
@@ -234,6 +234,13 @@ 


#define IMX8MN_CLK_A53_CORE			214



#define IMX8MN_CLK_END				215

#define IMX8MN_CLK_CLKOUT1_SEL			215

#define IMX8MN_CLK_CLKOUT1_DIV			216

#define IMX8MN_CLK_CLKOUT1			217

#define IMX8MN_CLK_CLKOUT2_SEL			218

#define IMX8MN_CLK_CLKOUT2_DIV			219

#define IMX8MN_CLK_CLKOUT2			220



#define IMX8MN_CLK_END				221



#endif