diff options
| author | Andrew Davis <afd@ti.com> | 2025-01-23 12:17:26 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-04 14:42:05 +0200 |
| commit | 3314310b3f3e69961f421a123ccb1ea9669d75c4 (patch) | |
| tree | 4b426f0bdc55b5d100df8e02d93c57ec0faa3672 /drivers/soc | |
| parent | f4e35b2c5f5cc694572857b2fdb85d1e5176338d (diff) | |
| download | linux-3314310b3f3e69961f421a123ccb1ea9669d75c4.tar.gz linux-3314310b3f3e69961f421a123ccb1ea9669d75c4.tar.bz2 linux-3314310b3f3e69961f421a123ccb1ea9669d75c4.zip | |
soc: ti: k3-socinfo: Do not use syscon helper to build regmap
[ Upstream commit a5caf03188e44388e8c618dcbe5fffad1a249385 ]
The syscon helper device_node_to_regmap() is used to fetch a regmap
registered to a device node. It also currently creates this regmap
if the node did not already have a regmap associated with it. This
should only be used on "syscon" nodes. This driver is not such a
device and instead uses device_node_to_regmap() on its own node as
a hacky way to create a regmap for itself.
This will not work going forward and so we should create our regmap
the normal way by defining our regmap_config, fetching our memory
resource, then using the normal regmap_init_mmio() function.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20250123181726.597144-1-afd@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/ti/k3-socinfo.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/soc/ti/k3-socinfo.c b/drivers/soc/ti/k3-socinfo.c index 6ea9b8c7d335..7a3bdef5a7c0 100644 --- a/drivers/soc/ti/k3-socinfo.c +++ b/drivers/soc/ti/k3-socinfo.c @@ -63,6 +63,12 @@ k3_chipinfo_partno_to_names(unsigned int partno, return -EINVAL; } +static const struct regmap_config k3_chipinfo_regmap_cfg = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + static int k3_chipinfo_probe(struct platform_device *pdev) { struct device_node *node = pdev->dev.of_node; @@ -70,13 +76,18 @@ static int k3_chipinfo_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct soc_device *soc_dev; struct regmap *regmap; + void __iomem *base; u32 partno_id; u32 variant; u32 jtag_id; u32 mfg; int ret; - regmap = device_node_to_regmap(node); + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + regmap = regmap_init_mmio(dev, base, &k3_chipinfo_regmap_cfg); if (IS_ERR(regmap)) return PTR_ERR(regmap); |