diff options
Diffstat (limited to 'drivers/clk/ingenic/jz4725b-cgu.c')
| -rw-r--r-- | drivers/clk/ingenic/jz4725b-cgu.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/clk/ingenic/jz4725b-cgu.c b/drivers/clk/ingenic/jz4725b-cgu.c index 8c38e72d14a7..94cee44c854f 100644 --- a/drivers/clk/ingenic/jz4725b-cgu.c +++ b/drivers/clk/ingenic/jz4725b-cgu.c @@ -10,7 +10,7 @@ #include <linux/delay.h> #include <linux/of.h> -#include <dt-bindings/clock/jz4725b-cgu.h> +#include <dt-bindings/clock/ingenic,jz4725b-cgu.h> #include "cgu.h" #include "pm.h" @@ -80,16 +80,21 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { "pll half", CGU_CLK_DIV, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 21, 1, 1, -1, -1, -1, + CGU_REG_CPCCR, 21, 1, 1, -1, -1, -1, 0, jz4725b_cgu_pll_half_div_table, }, }, [JZ4725B_CLK_CCLK] = { "cclk", CGU_CLK_DIV, + /* + * Disabling the CPU clock or any parent clocks will hang the + * system; mark it critical. + */ + .flags = CLK_IS_CRITICAL, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1, + CGU_REG_CPCCR, 0, 1, 4, 22, -1, -1, 0, jz4725b_cgu_cpccr_div_table, }, }, @@ -98,7 +103,7 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { "hclk", CGU_CLK_DIV, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1, + CGU_REG_CPCCR, 4, 1, 4, 22, -1, -1, 0, jz4725b_cgu_cpccr_div_table, }, }, @@ -107,16 +112,21 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { "pclk", CGU_CLK_DIV, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1, + CGU_REG_CPCCR, 8, 1, 4, 22, -1, -1, 0, jz4725b_cgu_cpccr_div_table, }, }, [JZ4725B_CLK_MCLK] = { "mclk", CGU_CLK_DIV, + /* + * Disabling MCLK or its parents will render DRAM + * inaccessible; mark it critical. + */ + .flags = CLK_IS_CRITICAL, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1, + CGU_REG_CPCCR, 12, 1, 4, 22, -1, -1, 0, jz4725b_cgu_cpccr_div_table, }, }, @@ -125,7 +135,7 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { "ipu", CGU_CLK_DIV | CGU_CLK_GATE, .parents = { JZ4725B_CLK_PLL, -1, -1, -1 }, .div = { - CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1, + CGU_REG_CPCCR, 16, 1, 4, 22, -1, -1, 0, jz4725b_cgu_cpccr_div_table, }, .gate = { CGU_REG_CLKGR, 13 }, @@ -139,11 +149,10 @@ static const struct ingenic_cgu_clk_info jz4725b_cgu_clocks[] = { }, [JZ4725B_CLK_I2S] = { - "i2s", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE, + "i2s", CGU_CLK_MUX | CGU_CLK_DIV, .parents = { JZ4725B_CLK_EXT, JZ4725B_CLK_PLL_HALF, -1, -1 }, .mux = { CGU_REG_CPCCR, 31, 1 }, .div = { CGU_REG_I2SCDR, 0, 1, 9, -1, -1, -1 }, - .gate = { CGU_REG_CLKGR, 6 }, }, [JZ4725B_CLK_SPI] = { @@ -259,6 +268,6 @@ static void __init jz4725b_cgu_init(struct device_node *np) if (retval) pr_err("%s: failed to register CGU Clocks\n", __func__); - ingenic_cgu_register_syscore_ops(cgu); + ingenic_cgu_register_syscore(cgu); } CLK_OF_DECLARE_DRIVER(jz4725b_cgu, "ingenic,jz4725b-cgu", jz4725b_cgu_init); |