pinctrl: ingenic: Add .max_register in regmap_config

Compute the max register from the GPIO chip offset and number of GPIO
chips.

This permits to read all registers from debugfs.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: 周琰杰 (Zhou Yanjie)<zhouyanjie@wanyeetech.com>
Link: https://lore.kernel.org/r/20210717174836.14776-3-paul@crapouillou.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 2b894db1029bc5467e93aeb0d9f77813ad319c6e..cf4cc8f129f44cc3ab433e8073a17919dba642a8 100644 (file)
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -4149,6 +4149,7 @@ static int __init ingenic_pinctrl_probe(struct platform_device *pdev)
        void __iomem *base;
        const struct ingenic_chip_info *chip_info;
        struct device_node *node;
+       struct regmap_config regmap_config;
        unsigned int i;
        int err;
 
@@ -4166,8 +4167,10 @@ static int __init ingenic_pinctrl_probe(struct platform_device *pdev)
        if (IS_ERR(base))
                return PTR_ERR(base);
 
-       jzpc->map = devm_regmap_init_mmio(dev, base,
-                       &ingenic_pinctrl_regmap_config);
+       regmap_config = ingenic_pinctrl_regmap_config;
+       regmap_config.max_register = chip_info->num_chips * chip_info->reg_offset;
+
+       jzpc->map = devm_regmap_init_mmio(dev, base, &regmap_config);
        if (IS_ERR(jzpc->map)) {
                dev_err(dev, "Failed to create regmap\n");
                return PTR_ERR(jzpc->map);