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firmware: exynos-acpm: register ACPM clocks pdev

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Register by hand a platform device for the ACPM clocks.
The ACPM clocks are not modeled as a DT child of ACPM because:
1/ they don't have their own resources.
2/ they are not a block that can be reused. The clock identifying
   data is reduced (clock ID, clock name and mailbox channel ID)
   and may differ from a SoC to another.

Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org> # on gs101-oriole
Link: https://patch.msgid.link/20251010-acpm-clk-v6-3-321ee8826fd4@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Tudor Ambarus
2025-10-10 12:46:33 +00:00
committed by Krzysztof Kozlowski
parent 84a222d1b3
commit bad0d1260b
1 changed files with 21 additions and 0 deletions
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21
drivers/firmware/samsung/exynos-acpm.c
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@@ -177,9 +177,11 @@ struct acpm_info {
/**
* struct acpm_match_data - of_device_id data.
* @initdata_base: offset in SRAM where the channels configuration resides.
* @acpm_clk_dev_name: base name for the ACPM clocks device that we're registering.
*/
struct acpm_match_data {
loff_t initdata_base;
const char *acpm_clk_dev_name;
};
#define client_to_acpm_chan(c) container_of(c, struct acpm_chan, cl)
@@ -604,9 +606,15 @@ static void acpm_setup_ops(struct acpm_info *acpm)
pmic_ops->update_reg = acpm_pmic_update_reg;
}
static void acpm_clk_pdev_unregister(void *data)
{
platform_device_unregister(data);
}
static int acpm_probe(struct platform_device *pdev)
{
const struct acpm_match_data *match_data;
struct platform_device *acpm_clk_pdev;
struct device *dev = &pdev->dev;
struct device_node *shmem;
struct acpm_info *acpm;
@@ -647,6 +655,18 @@ static int acpm_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, acpm);
acpm_clk_pdev = platform_device_register_data(dev,
match_data->acpm_clk_dev_name,
PLATFORM_DEVID_NONE, NULL, 0);
if (IS_ERR(acpm_clk_pdev))
return dev_err_probe(dev, PTR_ERR(acpm_clk_pdev),
"Failed to register ACPM clocks device.\n");
ret = devm_add_action_or_reset(dev, acpm_clk_pdev_unregister,
acpm_clk_pdev);
if (ret)
return dev_err_probe(dev, ret, "Failed to add devm action.\n");
return devm_of_platform_populate(dev);
}
@@ -746,6 +766,7 @@ EXPORT_SYMBOL_GPL(devm_acpm_get_by_node);
static const struct acpm_match_data acpm_gs101 = {
.initdata_base = ACPM_GS101_INITDATA_BASE,
.acpm_clk_dev_name = "gs101-acpm-clk",
};
static const struct of_device_id acpm_match[] = {