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Memory controller drivers for v6.12, part two

Browse Source 
1. Renesas RPC-IF: adjust default setting for pins to accommodate
    different flash devices, which should fix 4-bit flash writes with
    Renesas AT25QL128A flash.
 
 2. Simplify a bit probe() in PL172 and PL353-SMC.
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Merge tag 'memory-controller-drv-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers

Memory controller drivers for v6.12, part two

1. Renesas RPC-IF: adjust default setting for pins to accommodate
   different flash devices, which should fix 4-bit flash writes with
   Renesas AT25QL128A flash.

2. Simplify a bit probe() in PL172 and PL353-SMC.

* tag 'memory-controller-drv-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: pl353-smc: simplify with scoped for each OF child loop
  memory: pl172: simplify releasing AMBA regions with devm
  memory: renesas-rpc-if: Use Hi-Z state as the default setting for IOVF pins

Link: https://lore.kernel.org/r/20240906140859.71712-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2024-09-11 09:46:31 +00:00
commit b62800736f
3 changed files with 16 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
drivers/memory/pl172.c
View File

@ -187,6 +187,13 @@ static int pl172_parse_cs_config(struct amba_device *adev,
return -EINVAL;
}
static void pl172_amba_release_regions(void *data)
{
struct amba_device *adev = data;
amba_release_regions(adev);
}
static const char * const pl172_revisions[] = {"r1", "r2", "r2p3", "r2p4"};
static const char * const pl175_revisions[] = {"r1"};
static const char * const pl176_revisions[] = {"r0"};
@ -232,13 +239,14 @@ static int pl172_probe(struct amba_device *adev, const struct amba_id *id)
return ret;
}
ret = devm_add_action_or_reset(dev, pl172_amba_release_regions, adev);
if (ret)
return ret;
pl172->base = devm_ioremap(dev, adev->res.start,
resource_size(&adev->res));
if (!pl172->base) {
dev_err(dev, "ioremap failed\n");
ret = -ENOMEM;
goto err_no_ioremap;
}
if (!pl172->base)
return dev_err_probe(dev, -ENOMEM, "ioremap failed\n");
amba_set_drvdata(adev, pl172);
@ -256,15 +264,6 @@ static int pl172_probe(struct amba_device *adev, const struct amba_id *id)
}
return 0;
err_no_ioremap:
amba_release_regions(adev);
return ret;
}
static void pl172_remove(struct amba_device *adev)
{
amba_release_regions(adev);
}
static const struct amba_id pl172_ids[] = {
@ -292,7 +291,6 @@ static struct amba_driver pl172_driver = {
.name = "memory-pl172",
},
.probe = pl172_probe,
.remove = pl172_remove,
.id_table = pl172_ids,
};
module_amba_driver(pl172_driver);

7
drivers/memory/pl353-smc.c
View File

@ -74,7 +74,6 @@ static int pl353_smc_probe(struct amba_device *adev, const struct amba_id *id)
struct device_node *of_node = adev->dev.of_node;
const struct of_device_id *match = NULL;
struct pl353_smc_data *pl353_smc;
struct device_node *child;
pl353_smc = devm_kzalloc(&adev->dev, sizeof(*pl353_smc), GFP_KERNEL);
if (!pl353_smc)
@ -93,12 +92,13 @@ static int pl353_smc_probe(struct amba_device *adev, const struct amba_id *id)
amba_set_drvdata(adev, pl353_smc);
/* Find compatible children. Only a single child is supported */
for_each_available_child_of_node(of_node, child) {
for_each_available_child_of_node_scoped(of_node, child) {
match = of_match_node(pl353_smc_supported_children, child);
if (!match) {
dev_warn(&adev->dev, "unsupported child node\n");
continue;
}
of_platform_device_create(child, NULL, &adev->dev);
break;
}
if (!match) {
@ -106,9 +106,6 @@ static int pl353_smc_probe(struct amba_device *adev, const struct amba_id *id)
return -ENODEV;
}
of_platform_device_create(child, NULL, &adev->dev);
of_node_put(child);
return 0;
}

2
drivers/memory/renesas-rpc-if.c
View File

@ -367,7 +367,7 @@ int rpcif_hw_init(struct device *dev, bool hyperflash)
regmap_update_bits(rpc->regmap, RPCIF_CMNCR,
RPCIF_CMNCR_MOIIO(3) | RPCIF_CMNCR_IOFV(3) |
RPCIF_CMNCR_BSZ(3),
RPCIF_CMNCR_MOIIO(1) | RPCIF_CMNCR_IOFV(2) |
RPCIF_CMNCR_MOIIO(1) | RPCIF_CMNCR_IOFV(3) |
RPCIF_CMNCR_BSZ(hyperflash ? 1 : 0));
else
regmap_update_bits(rpc->regmap, RPCIF_CMNCR,