diff options
Diffstat (limited to 'drivers/clk/mvebu/cp110-system-controller.c')
| -rw-r--r-- | drivers/clk/mvebu/cp110-system-controller.c | 63 |
1 files changed, 48 insertions, 15 deletions
diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c index 081f089d2656..ae3d81263304 100644 --- a/drivers/clk/mvebu/cp110-system-controller.c +++ b/drivers/clk/mvebu/cp110-system-controller.c @@ -213,9 +213,9 @@ static struct clk_hw *cp110_of_clk_get(struct of_phandle_args *clkspec, return ERR_PTR(-EINVAL); } -static char *cp110_unique_name(struct device *dev, const char *name) +static char *cp110_unique_name(struct device *dev, struct device_node *np, + const char *name) { - struct device_node *np = dev->of_node; const __be32 *reg; u64 addr; @@ -229,7 +229,8 @@ static char *cp110_unique_name(struct device *dev, const char *name) (unsigned long long)addr, name); } -static int cp110_syscon_clk_probe(struct platform_device *pdev) +static int cp110_syscon_common_probe(struct platform_device *pdev, + struct device_node *syscon_node) { struct regmap *regmap; struct device *dev = &pdev->dev; @@ -241,7 +242,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) int i, ret; char *gate_name[ARRAY_SIZE(gate_base_names)]; - regmap = syscon_node_to_regmap(np); + regmap = syscon_node_to_regmap(syscon_node); if (IS_ERR(regmap)) return PTR_ERR(regmap); @@ -260,7 +261,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) cp110_clk_data->num = CP110_CLK_NUM; /* Register the APLL which is the root of the hw tree */ - apll_name = cp110_unique_name(dev, "apll"); + apll_name = cp110_unique_name(dev, syscon_node, "apll"); hw = clk_hw_register_fixed_rate(NULL, apll_name, NULL, 0, 1000 * 1000 * 1000); if (IS_ERR(hw)) { @@ -271,7 +272,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) cp110_clks[CP110_CORE_APLL] = hw; /* PPv2 is APLL/3 */ - ppv2_name = cp110_unique_name(dev, "ppv2-core"); + ppv2_name = cp110_unique_name(dev, syscon_node, "ppv2-core"); hw = clk_hw_register_fixed_factor(NULL, ppv2_name, apll_name, 0, 1, 3); if (IS_ERR(hw)) { ret = PTR_ERR(hw); @@ -281,7 +282,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) cp110_clks[CP110_CORE_PPV2] = hw; /* EIP clock is APLL/2 */ - eip_name = cp110_unique_name(dev, "eip"); + eip_name = cp110_unique_name(dev, syscon_node, "eip"); hw = clk_hw_register_fixed_factor(NULL, eip_name, apll_name, 0, 1, 2); if (IS_ERR(hw)) { ret = PTR_ERR(hw); @@ -291,7 +292,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) cp110_clks[CP110_CORE_EIP] = hw; /* Core clock is EIP/2 */ - core_name = cp110_unique_name(dev, "core"); + core_name = cp110_unique_name(dev, syscon_node, "core"); hw = clk_hw_register_fixed_factor(NULL, core_name, eip_name, 0, 1, 2); if (IS_ERR(hw)) { ret = PTR_ERR(hw); @@ -300,7 +301,7 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) cp110_clks[CP110_CORE_CORE] = hw; /* NAND can be either APLL/2.5 or core clock */ - nand_name = cp110_unique_name(dev, "nand-core"); + nand_name = cp110_unique_name(dev, syscon_node, "nand-core"); if (nand_clk_ctrl & NF_CLOCK_SEL_400_MASK) hw = clk_hw_register_fixed_factor(NULL, nand_name, apll_name, 0, 2, 5); @@ -316,7 +317,8 @@ static int cp110_syscon_clk_probe(struct platform_device *pdev) /* create the unique name for all the gate clocks */ for (i = 0; i < ARRAY_SIZE(gate_base_names); i++) - gate_name[i] = cp110_unique_name(dev, gate_base_names[i]); + gate_name[i] = cp110_unique_name(dev, syscon_node, + gate_base_names[i]); for (i = 0; i < ARRAY_SIZE(gate_base_names); i++) { const char *parent; @@ -402,17 +404,48 @@ fail_apll: return ret; } -static const struct of_device_id cp110_syscon_of_match[] = { +static int cp110_syscon_legacy_clk_probe(struct platform_device *pdev) +{ + dev_warn(&pdev->dev, FW_WARN "Using legacy device tree binding\n"); + dev_warn(&pdev->dev, FW_WARN "Update your device tree:\n"); + dev_warn(&pdev->dev, FW_WARN + "This binding won't be supported in future kernels\n"); + + return cp110_syscon_common_probe(pdev, pdev->dev.of_node); +} + +static int cp110_clk_probe(struct platform_device *pdev) +{ + return cp110_syscon_common_probe(pdev, pdev->dev.of_node->parent); +} + + +static const struct of_device_id cp110_syscon_legacy_of_match[] = { { .compatible = "marvell,cp110-system-controller0", }, { } }; -static struct platform_driver cp110_syscon_driver = { - .probe = cp110_syscon_clk_probe, +static struct platform_driver cp110_syscon_legacy_driver = { + .probe = *cp110_syscon_legacy_clk_probe, .driver = { .name = "marvell-cp110-system-controller0", - .of_match_table = cp110_syscon_of_match, + .of_match_table = cp110_syscon_legacy_of_match, + .suppress_bind_attrs = true, + }, +}; +builtin_platform_driver(cp110_syscon_legacy_driver); + +static const struct of_device_id cp110_clock_of_match[] = { + { .compatible = "marvell,cp110-clock", }, + { } +}; + +static struct platform_driver cp110_clock_driver = { + .probe = cp110_clk_probe, + .driver = { + .name = "marvell-cp110-clock", + .of_match_table = cp110_clock_of_match, .suppress_bind_attrs = true, }, }; -builtin_platform_driver(cp110_syscon_driver); +builtin_platform_driver(cp110_clock_driver); |