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pinctrl: aspeed-g5: Adapt to new LPC device tree layout

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Add check against LPC device v2 compatible string to
ensure that the fixed device tree layout is adopted.
The LPC register offsets are also fixed accordingly.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210319062752.145730-4-andrew@aj.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
Chia-Wei, Wang 2021-03-19 16:57:35 +10:30 committed by Joel Stanley
parent 8f88156f82
commit eaffd32bea
1 changed files with 11 additions and 6 deletions
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17
drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
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@ -60,7 +60,7 @@
#define COND2 { ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 }
/* LHCR0 is offset from the end of the H8S/2168-compatible registers */
#define LHCR0 0x20
#define LHCR0 0xa0
#define GFX064 0x64
#define B14 0
@ -2648,14 +2648,19 @@ static struct regmap *aspeed_g5_acquire_regmap(struct aspeed_pinmux_data *ctx,
}
if (ip == ASPEED_IP_LPC) {
struct device_node *node;
struct device_node *np;
struct regmap *map;
node = of_parse_phandle(ctx->dev->of_node,
np = of_parse_phandle(ctx->dev->of_node,
"aspeed,external-nodes", 1);
if (node) {
map = syscon_node_to_regmap(node->parent);
of_node_put(node);
if (np) {
if (!of_device_is_compatible(np->parent, "aspeed,ast2400-lpc-v2") &&
!of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2") &&
!of_device_is_compatible(np->parent, "aspeed,ast2600-lpc-v2"))
return ERR_PTR(-ENODEV);
map = syscon_node_to_regmap(np->parent);
of_node_put(np);
if (IS_ERR(map))
return map;
} else