diff options
| author | Phil Elwell <phil@raspberrypi.com> | 2026-03-07 02:41:21 +0300 |
|---|---|---|
| committer | Lee Jones <lee@kernel.org> | 2026-03-25 15:45:45 +0300 |
| commit | fe0e422cbcf4b7ee35cacc463631092b310a6f6a (patch) | |
| tree | b4c47c606321d4a4c90e9173a1b8cbf93dc6e9f0 | |
| parent | c7be85a3cd5c918b0fe8977b3f2ac410eb212a0f (diff) | |
| download | linux-fe0e422cbcf4b7ee35cacc463631092b310a6f6a.tar.xz | |
mfd: bcm2835-pm: Introduce SoC-specific type identifier
Power management blocks across the BCM2835 family share a common
base but require variant-specific handling. For instance, the
BCM2712 lacks ASB register space, yet it manages the power domain
for the V3D graphics block.
Add a hardware type identifier to the driver's private data. This
allows the driver to distinguish between SoC models and implement
custom quirks or features as needed.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Co-developed-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/c4bb218654e91f312a01b419d3d408e5131f7673.1772839224.git.andrea.porta@suse.com
Signed-off-by: Lee Jones <lee@kernel.org>
| -rw-r--r-- | drivers/mfd/bcm2835-pm.c | 7 | ||||
| -rw-r--r-- | include/linux/mfd/bcm2835-pm.h | 7 |
2 files changed, 11 insertions, 3 deletions
diff --git a/drivers/mfd/bcm2835-pm.c b/drivers/mfd/bcm2835-pm.c index 8bed59816e82..2d5dc521b623 100644 --- a/drivers/mfd/bcm2835-pm.c +++ b/drivers/mfd/bcm2835-pm.c @@ -81,6 +81,7 @@ static int bcm2835_pm_probe(struct platform_device *pdev) platform_set_drvdata(pdev, pm); pm->dev = dev; + pm->soc = (uintptr_t)device_get_match_data(dev); ret = bcm2835_pm_get_pdata(pdev, pm); if (ret) @@ -106,9 +107,9 @@ static int bcm2835_pm_probe(struct platform_device *pdev) 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", }, + { .compatible = "brcm,bcm2835-pm", .data = (void *)BCM2835_PM_SOC_BCM2835 }, + { .compatible = "brcm,bcm2711-pm", .data = (void *)BCM2835_PM_SOC_BCM2711 }, + { .compatible = "brcm,bcm2712-pm", .data = (void *)BCM2835_PM_SOC_BCM2712 }, {}, }; MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match); diff --git a/include/linux/mfd/bcm2835-pm.h b/include/linux/mfd/bcm2835-pm.h index f70a810c55f7..d2e17ab1dbfc 100644 --- a/include/linux/mfd/bcm2835-pm.h +++ b/include/linux/mfd/bcm2835-pm.h @@ -5,11 +5,18 @@ #include <linux/regmap.h> +enum bcm2835_soc { + BCM2835_PM_SOC_BCM2835, + BCM2835_PM_SOC_BCM2711, + BCM2835_PM_SOC_BCM2712, +}; + struct bcm2835_pm { struct device *dev; void __iomem *base; void __iomem *asb; void __iomem *rpivid_asb; + enum bcm2835_soc soc; }; #endif /* BCM2835_MFD_PM_H */ |