From: Chia-Wei, Wang Date: Fri, 19 Mar 2021 06:27:35 +0000 (+1030) Subject: pinctrl: aspeed-g5: Adapt to new LPC device tree layout X-Git-Tag: io_uring-5.13-2021-05-07~83^2~6^2~1 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=eaffd32bea0c93226d4701b1736b04827f754ccf;p=linux-2.6-block.git pinctrl: aspeed-g5: Adapt to new LPC device tree layout 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 Reviewed-by: Andrew Jeffery Acked-by: Linus Walleij Reviewed-by: Joel Stanley Link: https://lore.kernel.org/r/20210319062752.145730-4-andrew@aj.id.au Signed-off-by: Joel Stanley --- diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c index 0cab4c2576e2..996ebcba4d38 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c @@ -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