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phy: ti-pipe3: move clk initialization to a separate function 

No functional change. Moved clock initialization done in probe to a
separate function as part of cleaning up ti_pipe3_probe.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Kishon Vijay Abraham I 2015-12-21 14:24:06 +05:30
parent d65ff52eb8
commit 234738ea33
1 changed files with 72 additions and 55 deletions
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127
drivers/phy/phy-ti-pipe3.c
View File

@ -308,48 +308,11 @@ static const struct phy_ops ops = {
static const struct of_device_id ti_pipe3_id_table[]; static const struct of_device_id ti_pipe3_id_table[];
static int ti_pipe3_probe(struct platform_device *pdev) static int ti_pipe3_get_clk(struct ti_pipe3 *phy)
{ {
struct ti_pipe3 *phy;
struct phy *generic_phy;
struct phy_provider *phy_provider;
struct resource *res;
struct device_node *node = pdev->dev.of_node;
struct device_node *control_node;
struct platform_device *control_pdev;
const struct of_device_id *match;
struct clk *clk; struct clk *clk;
struct device *dev = &pdev->dev; struct device *dev = phy->dev;
struct device_node *node = dev->of_node;
phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
if (!phy)
return -ENOMEM;
phy->dev = dev;
if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
match = of_match_device(ti_pipe3_id_table, dev);
if (!match)
return -EINVAL;
phy->dpll_map = (struct pipe3_dpll_map *)match->data;
if (!phy->dpll_map) {
dev_err(dev, "no DPLL data\n");
return -EINVAL;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"pll_ctrl");
phy->pll_ctrl_base = devm_ioremap_resource(dev, res);
if (IS_ERR(phy->pll_ctrl_base))
return PTR_ERR(phy->pll_ctrl_base);
phy->sys_clk = devm_clk_get(dev, "sysclk");
if (IS_ERR(phy->sys_clk)) {
dev_err(dev, "unable to get sysclk\n");
return -EINVAL;
}
}
phy->refclk = devm_clk_get(dev, "refclk"); phy->refclk = devm_clk_get(dev, "refclk");
if (IS_ERR(phy->refclk)) { if (IS_ERR(phy->refclk)) {
@ -369,25 +332,17 @@ static int ti_pipe3_probe(struct platform_device *pdev)
} }
} else { } else {
phy->wkupclk = ERR_PTR(-ENODEV); phy->wkupclk = ERR_PTR(-ENODEV);
phy->dpll_reset_syscon = syscon_regmap_lookup_by_phandle(node, }
"syscon-pllreset");
if (IS_ERR(phy->dpll_reset_syscon)) { if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
dev_info(dev, phy->sys_clk = devm_clk_get(dev, "sysclk");
"can't get syscon-pllreset, sata dpll won't idle\n"); if (IS_ERR(phy->sys_clk)) {
phy->dpll_reset_syscon = NULL; dev_err(dev, "unable to get sysclk\n");
} else { return -EINVAL;
if (of_property_read_u32_index(node,
"syscon-pllreset", 1,
&phy->dpll_reset_reg)) {
dev_err(dev,
"couldn't get pllreset reg. offset\n");
return -EINVAL;
}
} }
} }
if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) { if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
clk = devm_clk_get(dev, "dpll_ref"); clk = devm_clk_get(dev, "dpll_ref");
if (IS_ERR(clk)) { if (IS_ERR(clk)) {
dev_err(dev, "unable to get dpll ref clk\n"); dev_err(dev, "unable to get dpll ref clk\n");
@ -418,6 +373,68 @@ static int ti_pipe3_probe(struct platform_device *pdev)
phy->div_clk = ERR_PTR(-ENODEV); phy->div_clk = ERR_PTR(-ENODEV);
} }
return 0;
}
static int ti_pipe3_probe(struct platform_device *pdev)
{
struct ti_pipe3 *phy;
struct phy *generic_phy;
struct phy_provider *phy_provider;
struct resource *res;
struct device_node *node = pdev->dev.of_node;
struct device_node *control_node;
struct platform_device *control_pdev;
const struct of_device_id *match;
struct device *dev = &pdev->dev;
int ret;
phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
if (!phy)
return -ENOMEM;
phy->dev = dev;
if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
match = of_match_device(ti_pipe3_id_table, dev);
if (!match)
return -EINVAL;
phy->dpll_map = (struct pipe3_dpll_map *)match->data;
if (!phy->dpll_map) {
dev_err(dev, "no DPLL data\n");
return -EINVAL;
}
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
"pll_ctrl");
phy->pll_ctrl_base = devm_ioremap_resource(dev, res);
if (IS_ERR(phy->pll_ctrl_base))
return PTR_ERR(phy->pll_ctrl_base);
}
if (of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
phy->dpll_reset_syscon = syscon_regmap_lookup_by_phandle(node,
"syscon-pllreset");
if (IS_ERR(phy->dpll_reset_syscon)) {
dev_info(dev,
"can't get syscon-pllreset, sata dpll won't idle\n");
phy->dpll_reset_syscon = NULL;
} else {
if (of_property_read_u32_index(node,
"syscon-pllreset", 1,
&phy->dpll_reset_reg)) {
dev_err(dev,
"couldn't get pllreset reg. offset\n");
return -EINVAL;
}
}
}
ret = ti_pipe3_get_clk(phy);
if (ret)
return ret;
control_node = of_parse_phandle(node, "ctrl-module", 0); control_node = of_parse_phandle(node, "ctrl-module", 0);
if (!control_node) { if (!control_node) {
dev_err(dev, "Failed to get control device phandle\n"); dev_err(dev, "Failed to get control device phandle\n");