diff options
Diffstat (limited to 'drivers/clk/ingenic/jz4770-cgu.c')
| -rw-r--r-- | drivers/clk/ingenic/jz4770-cgu.c | 67 |
1 files changed, 30 insertions, 37 deletions
diff --git a/drivers/clk/ingenic/jz4770-cgu.c b/drivers/clk/ingenic/jz4770-cgu.c index dfce740c25a8..eebc1bea3841 100644 --- a/drivers/clk/ingenic/jz4770-cgu.c +++ b/drivers/clk/ingenic/jz4770-cgu.c @@ -9,9 +9,9 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/of.h> -#include <linux/syscore_ops.h> #include <dt-bindings/clock/jz4770-cgu.h> #include "cgu.h" +#include "pm.h" /* * CPM registers offset address definition @@ -38,9 +38,6 @@ #define CGU_REG_MSC2CDR 0xA8 #define CGU_REG_BCHCDR 0xAC -/* bits within the LCR register */ -#define LCR_LPM BIT(0) /* Low Power Mode */ - /* bits within the OPCR register */ #define OPCR_SPENDH BIT(5) /* UHC PHY suspend */ @@ -87,6 +84,10 @@ static const s8 pll_od_encoding[8] = { 0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3, }; +static const u8 jz4770_cgu_cpccr_div_table[] = { + 1, 2, 3, 4, 6, 8, 12, +}; + static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { /* External clocks */ @@ -144,34 +145,52 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { [JZ4770_CLK_CCLK] = { "cclk", CGU_CLK_DIV, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, }, [JZ4770_CLK_H0CLK] = { "h0clk", CGU_CLK_DIV, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, }, [JZ4770_CLK_H1CLK] = { "h1clk", CGU_CLK_DIV | CGU_CLK_GATE, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 24, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, .gate = { CGU_REG_CLKGR1, 7 }, }, [JZ4770_CLK_H2CLK] = { "h2clk", CGU_CLK_DIV, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, }, [JZ4770_CLK_C1CLK] = { "c1clk", CGU_CLK_DIV | CGU_CLK_GATE, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, .gate = { CGU_REG_OPCR, 31, true }, // disable CCLK stop on idle }, [JZ4770_CLK_PCLK] = { "pclk", CGU_CLK_DIV, .parents = { JZ4770_CLK_PLL0, }, - .div = { CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1 }, + .div = { + CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1, + jz4770_cgu_cpccr_div_table, + }, }, /* Those divided clocks can connect to PLL0 or PLL1 */ @@ -407,30 +426,6 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = { }, }; -#if IS_ENABLED(CONFIG_PM_SLEEP) -static int jz4770_cgu_pm_suspend(void) -{ - u32 val; - - val = readl(cgu->base + CGU_REG_LCR); - writel(val | LCR_LPM, cgu->base + CGU_REG_LCR); - return 0; -} - -static void jz4770_cgu_pm_resume(void) -{ - u32 val; - - val = readl(cgu->base + CGU_REG_LCR); - writel(val & ~LCR_LPM, cgu->base + CGU_REG_LCR); -} - -static struct syscore_ops jz4770_cgu_pm_ops = { - .suspend = jz4770_cgu_pm_suspend, - .resume = jz4770_cgu_pm_resume, -}; -#endif /* CONFIG_PM_SLEEP */ - static void __init jz4770_cgu_init(struct device_node *np) { int retval; @@ -444,9 +439,7 @@ static void __init jz4770_cgu_init(struct device_node *np) if (retval) pr_err("%s: failed to register CGU Clocks\n", __func__); -#if IS_ENABLED(CONFIG_PM_SLEEP) - register_syscore_ops(&jz4770_cgu_pm_ops); -#endif + ingenic_cgu_register_syscore_ops(cgu); } /* We only probe via devicetree, no need for a platform driver */ |