[PATCH 3/3] pinctrl: ingenic: Add .max_register in regmap_config

From: Paul Cercueil
Date: Sat Jul 17 2021 - 13:48:57 EST


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@xxxxxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-ingenic.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 263498be8e31..2bbcb8063a16 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -3759,6 +3759,7 @@ 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;

@@ -3776,8 +3777,10 @@ 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);
--
2.30.2