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clk: qcom: Consolidate common probe code

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Most of the probe code is the same between all the different
clock controllers. Consolidate the code into a common.c file.
This makes changes to the common probe parts easier and reduces
chances for bugs.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Stephen Boyd
2014-03-21 17:59:37 -07:00
committed by Mike Turquette
parent 63589e92c2
commit 49fc825f0c
8 changed files with 196 additions and 337 deletions
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87
drivers/clk/qcom/gcc-msm8660.c
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@@ -25,6 +25,7 @@
#include <dt-bindings/clock/qcom,gcc-msm8660.h>
#include <dt-bindings/reset/qcom,gcc-msm8660.h>
#include "common.h"
#include "clk-regmap.h"
#include "clk-pll.h"
#include "clk-rcg.h"
@@ -2701,94 +2702,28 @@ static const struct regmap_config gcc_msm8660_regmap_config = {
.fast_io = true,
};
static const struct qcom_cc_desc gcc_msm8660_desc = {
.config = &gcc_msm8660_regmap_config,
.clks = gcc_msm8660_clks,
.num_clks = ARRAY_SIZE(gcc_msm8660_clks),
.resets = gcc_msm8660_resets,
.num_resets = ARRAY_SIZE(gcc_msm8660_resets),
};
static const struct of_device_id gcc_msm8660_match_table[] = {
{ .compatible = "qcom,gcc-msm8660" },
{ }
};
MODULE_DEVICE_TABLE(of, gcc_msm8660_match_table);
struct qcom_cc {
struct qcom_reset_controller reset;
struct clk_onecell_data data;
struct clk *clks[];
};
static int gcc_msm8660_probe(struct platform_device *pdev)
{
void __iomem *base;
struct resource *res;
int i, ret;
struct device *dev = &pdev->dev;
struct clk *clk;
struct clk_onecell_data *data;
struct clk **clks;
struct regmap *regmap;
size_t num_clks;
struct qcom_reset_controller *reset;
struct qcom_cc *cc;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
regmap = devm_regmap_init_mmio(dev, base, &gcc_msm8660_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
num_clks = ARRAY_SIZE(gcc_msm8660_clks);
cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
GFP_KERNEL);
if (!cc)
return -ENOMEM;
clks = cc->clks;
data = &cc->data;
data->clks = clks;
data->clk_num = num_clks;
/* Temporary until RPM clocks supported */
clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000);
if (IS_ERR(clk))
return PTR_ERR(clk);
clk = clk_register_fixed_rate(dev, "pxo", NULL, CLK_IS_ROOT, 27000000);
if (IS_ERR(clk))
return PTR_ERR(clk);
for (i = 0; i < num_clks; i++) {
if (!gcc_msm8660_clks[i])
continue;
clk = devm_clk_register_regmap(dev, gcc_msm8660_clks[i]);
if (IS_ERR(clk))
return PTR_ERR(clk);
clks[i] = clk;
}
ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
if (ret)
return ret;
reset = &cc->reset;
reset->rcdev.of_node = dev->of_node;
reset->rcdev.ops = &qcom_reset_ops,
reset->rcdev.owner = THIS_MODULE,
reset->rcdev.nr_resets = ARRAY_SIZE(gcc_msm8660_resets),
reset->regmap = regmap;
reset->reset_map = gcc_msm8660_resets,
platform_set_drvdata(pdev, &reset->rcdev);
ret = reset_controller_register(&reset->rcdev);
if (ret)
of_clk_del_provider(dev->of_node);
return ret;
return qcom_cc_probe(pdev, &gcc_msm8660_desc);
}
static int gcc_msm8660_remove(struct platform_device *pdev)
{
of_clk_del_provider(pdev->dev.of_node);
reset_controller_unregister(platform_get_drvdata(pdev));
qcom_cc_remove(pdev);
return 0;
}