| Message ID | 20210114131622.8951-5-chiawei_wang@aspeedtech.com |
|---|---|
| State | New |
| Headers | show |
| Series | Remove LPC register partitioning | expand |
On Thu, Jan 14, 2021 at 2:17 PM Chia-Wei, Wang <chiawei_wang@aspeedtech.com> wrote: > 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> Acked-by: Linus Walleij <linus.walleij@linaro.org> I suppose the patches need to go in together. Tell me if you need me to apply this one patch to the pinctrl tree. Yours, Linus Walleij
On Thu, 14 Jan 2021, at 23:46, Chia-Wei, Wang wrote: > 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>
On Thu, 14 Jan 2021, at 23:46, Chia-Wei, Wang wrote: > 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> Using a Witherspoon (AST2500): Tested-by: Andrew Jeffery <andrew@aj.id.au>
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
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> --- drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)