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70 lines
2.1 KiB
Diff
70 lines
2.1 KiB
Diff
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From 0c7aeb96fd3ab68011ba6c24239c501190890308 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 8 Mar 2023 14:27:58 +0000
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Subject: [PATCH] mfd: bcm2835-pm: Add support for BCM2712
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BCM2712 lacks the "asb" and "rpivid_asb" register ranges, but still
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requires the use of the bcm2835-power driver to reset the V3D block.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/mfd/bcm2835-pm.c | 28 +++++++++++++++++++---------
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1 file changed, 19 insertions(+), 9 deletions(-)
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--- a/drivers/mfd/bcm2835-pm.c
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+++ b/drivers/mfd/bcm2835-pm.c
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@@ -69,12 +69,30 @@ static int bcm2835_pm_get_pdata(struct p
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return 0;
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}
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+static const struct of_device_id bcm2835_pm_of_match[] = {
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+ { .compatible = "brcm,bcm2835-pm-wdt", },
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+ { .compatible = "brcm,bcm2835-pm", },
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+ { .compatible = "brcm,bcm2711-pm", },
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+ { .compatible = "brcm,bcm2712-pm", .data = (const void *)1},
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+ {},
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+};
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+MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match);
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+
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static int bcm2835_pm_probe(struct platform_device *pdev)
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{
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+ const struct of_device_id *of_id;
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struct device *dev = &pdev->dev;
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struct bcm2835_pm *pm;
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+ bool is_2712;
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int ret;
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+ of_id = of_match_node(bcm2835_pm_of_match, pdev->dev.of_node);
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+ if (!of_id) {
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+ dev_err(&pdev->dev, "Failed to match compatible string\n");
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+ return -EINVAL;
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+ }
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+ is_2712 = !!of_id->data;
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+
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pm = devm_kzalloc(dev, sizeof(*pm), GFP_KERNEL);
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if (!pm)
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return -ENOMEM;
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@@ -97,21 +115,13 @@ static int bcm2835_pm_probe(struct platf
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* bcm2835-pm binding as the key for whether we can reference
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* the full PM register range and support power domains.
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*/
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- if (pm->asb)
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+ if (pm->asb || is_2712)
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return devm_mfd_add_devices(dev, -1, bcm2835_power_devs,
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ARRAY_SIZE(bcm2835_power_devs),
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NULL, 0, NULL);
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return 0;
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}
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-static const struct of_device_id bcm2835_pm_of_match[] = {
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- { .compatible = "brcm,bcm2835-pm-wdt", },
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- { .compatible = "brcm,bcm2835-pm", },
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- { .compatible = "brcm,bcm2711-pm", },
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- {},
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-};
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-MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match);
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-
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static struct platform_driver bcm2835_pm_driver = {
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.probe = bcm2835_pm_probe,
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.driver = {
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