From 5cc73ff7a3524d4ce9a8bde0da6e34fb54fed45b Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Fri, 20 Apr 2018 15:38:10 +0800 Subject: [PATCH] clk: imx6sx: add missing lvds2 clock to the clock tree i.MX6SX has lvds2 (analog clock2), an I/O clock like lvds1. And this lvds2, along with lvds1, can be used to provide external clock source to the internal pll, such as pll4_audio and pll5_video. This patch mainly adds the lvds2 to the clock tree and fix its relationship with pll accordingly. Signed-off-by: Anson Huang Signed-off-by: Shengjiu Wang Reviewed-by: Rob Herring Acked-by: Shawn Guo Signed-off-by: Stephen Boyd --- drivers/clk/imx/clk-imx6sx.c | 10 +++++++--- include/dt-bindings/clock/imx6sx-clock.h | 6 +++++- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/clk/imx/clk-imx6sx.c b/drivers/clk/imx/clk-imx6sx.c index bc3f9ebf2d9e..0178ee26a53a 100644 --- a/drivers/clk/imx/clk-imx6sx.c +++ b/drivers/clk/imx/clk-imx6sx.c @@ -80,7 +80,7 @@ static const char *lvds_sels[] = { "arm", "pll1_sys", "dummy", "dummy", "dummy", "dummy", "dummy", "pll5_video_div", "dummy", "dummy", "pcie_ref_125m", "dummy", "usbphy1", "usbphy2", }; -static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; +static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", "lvds2_in", "dummy", }; static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; @@ -158,8 +158,9 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_IPP_DI0] = of_clk_get_by_name(ccm_node, "ipp_di0"); clks[IMX6SX_CLK_IPP_DI1] = of_clk_get_by_name(ccm_node, "ipp_di1"); - /* Clock source from external clock via CLK1 PAD */ - clks[IMX6SX_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); + /* Clock source from external clock via CLK1/2 PAD */ + clks[IMX6SX_CLK_ANACLK1] = of_clk_get_by_name(ccm_node, "anaclk1"); + clks[IMX6SX_CLK_ANACLK2] = of_clk_get_by_name(ccm_node, "anaclk2"); np = of_find_compatible_node(NULL, NULL, "fsl,imx6sx-anatop"); base = of_iomap(np, 0); @@ -228,7 +229,9 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) clks[IMX6SX_CLK_PCIE_REF_125M] = imx_clk_gate("pcie_ref_125m", "pcie_ref", base + 0xe0, 19); clks[IMX6SX_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); + clks[IMX6SX_CLK_LVDS2_OUT] = imx_clk_gate_exclusive("lvds2_out", "lvds2_sel", base + 0x160, 11, BIT(13)); clks[IMX6SX_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); + clks[IMX6SX_CLK_LVDS2_IN] = imx_clk_gate_exclusive("lvds2_in", "anaclk2", base + 0x160, 13, BIT(11)); clks[IMX6SX_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, @@ -270,6 +273,7 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node) /* name reg shift width parent_names num_parents */ clks[IMX6SX_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); + clks[IMX6SX_CLK_LVDS2_SEL] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); np = ccm_node; base = of_iomap(np, 0); diff --git a/include/dt-bindings/clock/imx6sx-clock.h b/include/dt-bindings/clock/imx6sx-clock.h index 36f0324902a5..cd2d6c570e86 100644 --- a/include/dt-bindings/clock/imx6sx-clock.h +++ b/include/dt-bindings/clock/imx6sx-clock.h @@ -275,6 +275,10 @@ #define IMX6SX_PLL6_BYPASS 262 #define IMX6SX_PLL7_BYPASS 263 #define IMX6SX_CLK_SPDIF_GCLK 264 -#define IMX6SX_CLK_CLK_END 265 +#define IMX6SX_CLK_LVDS2_SEL 265 +#define IMX6SX_CLK_LVDS2_OUT 266 +#define IMX6SX_CLK_LVDS2_IN 267 +#define IMX6SX_CLK_ANACLK2 268 +#define IMX6SX_CLK_CLK_END 269 #endif /* __DT_BINDINGS_CLOCK_IMX6SX_H */