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openwrt/target/linux/bcm27xx/patches-6.6/950-0551-mfd-bcm2835-pm-Add-support-for-BCM2712.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

70 lines
2.1 KiB
Diff

From 0ac7534cdc3b6fadf38ce4f3b4987aad33256db8 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Wed, 8 Mar 2023 14:27:58 +0000
Subject: [PATCH 0551/1085] mfd: bcm2835-pm: Add support for BCM2712
BCM2712 lacks the "asb" and "rpivid_asb" register ranges, but still
requires the use of the bcm2835-power driver to reset the V3D block.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
drivers/mfd/bcm2835-pm.c | 28 +++++++++++++++++++---------
1 file changed, 19 insertions(+), 9 deletions(-)
--- a/drivers/mfd/bcm2835-pm.c
+++ b/drivers/mfd/bcm2835-pm.c
@@ -69,12 +69,30 @@ static int bcm2835_pm_get_pdata(struct p
return 0;
}
+static const struct of_device_id bcm2835_pm_of_match[] = {
+ { .compatible = "brcm,bcm2835-pm-wdt", },
+ { .compatible = "brcm,bcm2835-pm", },
+ { .compatible = "brcm,bcm2711-pm", },
+ { .compatible = "brcm,bcm2712-pm", .data = (const void *)1},
+ {},
+};
+MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match);
+
static int bcm2835_pm_probe(struct platform_device *pdev)
{
+ const struct of_device_id *of_id;
struct device *dev = &pdev->dev;
struct bcm2835_pm *pm;
+ bool is_2712;
int ret;
+ of_id = of_match_node(bcm2835_pm_of_match, pdev->dev.of_node);
+ if (!of_id) {
+ dev_err(&pdev->dev, "Failed to match compatible string\n");
+ return -EINVAL;
+ }
+ is_2712 = !!of_id->data;
+
pm = devm_kzalloc(dev, sizeof(*pm), GFP_KERNEL);
if (!pm)
return -ENOMEM;
@@ -97,21 +115,13 @@ static int bcm2835_pm_probe(struct platf
* bcm2835-pm binding as the key for whether we can reference
* the full PM register range and support power domains.
*/
- if (pm->asb)
+ if (pm->asb || is_2712)
return devm_mfd_add_devices(dev, -1, bcm2835_power_devs,
ARRAY_SIZE(bcm2835_power_devs),
NULL, 0, NULL);
return 0;
}
-static const struct of_device_id bcm2835_pm_of_match[] = {
- { .compatible = "brcm,bcm2835-pm-wdt", },
- { .compatible = "brcm,bcm2835-pm", },
- { .compatible = "brcm,bcm2711-pm", },
- {},
-};
-MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match);
-
static struct platform_driver bcm2835_pm_driver = {
.probe = bcm2835_pm_probe,
.driver = {