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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 <Anson.Huang@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Anson Huang 2018-04-20 15:38:10 +08:00 committed by Stephen Boyd
parent 60cc43fc88
commit 5cc73ff7a3
2 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/clk/imx/clk-imx6sx.c
View File

@ -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);

6
include/dt-bindings/clock/imx6sx-clock.h
View File

@ -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 */