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sunxi SRAM controller fixes for

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- loading/unloading
 - claiming regions
 - debugfs info
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Merge tag 'sunxi-drivers-fixes-for-6.0-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes

sunxi SRAM controller fixes for
- loading/unloading
- claiming regions
- debugfs info

* tag 'sunxi-drivers-fixes-for-6.0-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  soc: sunxi: sram: Fix debugfs info for A64 SRAM C
  soc: sunxi: sram: Fix probe function ordering issues
  soc: sunxi: sram: Prevent the driver from being unbound
  soc: sunxi: sram: Actually claim SRAM regions

Link: https://lore.kernel.org/r/YyeN0m78+m9nNEah@kista.localdomain
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2022-09-23 14:28:59 +02:00
commit 7e1e2acb7b
1 changed files with 10 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/soc/sunxi/sunxi_sram.c
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@ -78,8 +78,8 @@ static struct sunxi_sram_desc sun4i_a10_sram_d = {
static struct sunxi_sram_desc sun50i_a64_sram_c = {
.data = SUNXI_SRAM_DATA("C", 0x4, 24, 1,
SUNXI_SRAM_MAP(0, 1, "cpu"),
SUNXI_SRAM_MAP(1, 0, "de2")),
SUNXI_SRAM_MAP(1, 0, "cpu"),
SUNXI_SRAM_MAP(0, 1, "de2")),
};
static const struct of_device_id sunxi_sram_dt_ids[] = {
@ -254,6 +254,7 @@ int sunxi_sram_claim(struct device *dev)
writel(val | ((device << sram_data->offset) & mask),
base + sram_data->reg);
sram_desc->claimed = true;
spin_unlock(&sram_lock);
return 0;
@ -329,11 +330,11 @@ static struct regmap_config sunxi_sram_emac_clock_regmap = {
.writeable_reg = sunxi_sram_regmap_accessible_reg,
};
static int sunxi_sram_probe(struct platform_device *pdev)
static int __init sunxi_sram_probe(struct platform_device *pdev)
{
struct dentry *d;
struct regmap *emac_clock;
const struct sunxi_sramc_variant *variant;
struct device *dev = &pdev->dev;
sram_dev = &pdev->dev;
@ -345,13 +346,6 @@ static int sunxi_sram_probe(struct platform_device *pdev)
if (IS_ERR(base))
return PTR_ERR(base);
of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
d = debugfs_create_file("sram", S_IRUGO, NULL, NULL,
&sunxi_sram_fops);
if (!d)
return -ENOMEM;
if (variant->num_emac_clocks > 0) {
emac_clock = devm_regmap_init_mmio(&pdev->dev, base,
&sunxi_sram_emac_clock_regmap);
@ -360,6 +354,10 @@ static int sunxi_sram_probe(struct platform_device *pdev)
return PTR_ERR(emac_clock);
}
of_platform_populate(dev->of_node, NULL, NULL, dev);
debugfs_create_file("sram", 0444, NULL, NULL, &sunxi_sram_fops);
return 0;
}
@ -409,9 +407,8 @@ static struct platform_driver sunxi_sram_driver = {
.name = "sunxi-sram",
.of_match_table = sunxi_sram_dt_match,
},
.probe = sunxi_sram_probe,
};
module_platform_driver(sunxi_sram_driver);
builtin_platform_driver_probe(sunxi_sram_driver, sunxi_sram_probe);
MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
MODULE_DESCRIPTION("Allwinner sunXi SRAM Controller Driver");