gpio: pca953x: use the correct register address when regcache sync during init

[ Upstream commit b8c768ccdd8338504fb78370747728d5002b1b5a ]

For regcache_sync_region, we need to use pca953x_recalc_addr() to get
the real register address.

Fixes: ec82d1eba346 ("gpio: pca953x: Zap ad-hoc reg_output cache")
Fixes: 0f25fda840a9 ("gpio: pca953x: Zap ad-hoc reg_direction cache")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 60b7616..64befd6 100644 (file)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -897,15 +897,18 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
 static int device_pca95xx_init(struct pca953x_chip *chip, u32 invert)
 {
        DECLARE_BITMAP(val, MAX_LINE);
+       u8 regaddr;
        int ret;
 
-       ret = regcache_sync_region(chip->regmap, chip->regs->output,
-                                  chip->regs->output + NBANK(chip) - 1);
+       regaddr = pca953x_recalc_addr(chip, chip->regs->output, 0);
+       ret = regcache_sync_region(chip->regmap, regaddr,
+                                  regaddr + NBANK(chip) - 1);
        if (ret)
                goto out;
 
-       ret = regcache_sync_region(chip->regmap, chip->regs->direction,
-                                  chip->regs->direction + NBANK(chip) - 1);
+       regaddr = pca953x_recalc_addr(chip, chip->regs->direction, 0);
+       ret = regcache_sync_region(chip->regmap, regaddr,
+                                  regaddr + NBANK(chip) - 1);
        if (ret)
                goto out;