[PATCH 4/6] mfd: da9063: Disallow RTC on DA9063L

[Marek Vasut]

The DA9063L does not contain RTC block, unlike the full DA9063.
Do not allow binding RTC driver on this variant of the chip.

Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
Cc: Geert Uytterhoeven <geert+rene...@glider.be>
Cc: Lee Jones <lee.jo...@linaro.org>
Cc: Mark Brown <broo...@kernel.org>
Cc: Steve Twiss <stwiss.opensou...@diasemi.com>
Cc: Wolfram Sang <wsa+rene...@sang-engineering.com>
Cc: linux-renesas-...@vger.kernel.org
---
 drivers/mfd/da9063-core.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index 7360b76b4f72..263c83006413 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -101,14 +101,14 @@ static const struct mfd_cell da9063_devs[] = {
                .of_compatible = "dlg,da9063-onkey",
        },
        {
+               .name           = DA9063_DRVNAME_VIBRATION,
+       },
+       {       /* Only present on DA9063 , not on DA9063L */
                .name           = DA9063_DRVNAME_RTC,
                .num_resources  = ARRAY_SIZE(da9063_rtc_resources),
                .resources      = da9063_rtc_resources,
                .of_compatible  = "dlg,da9063-rtc",
        },
-       {
-               .name           = DA9063_DRVNAME_VIBRATION,
-       },
 };
 
 static int da9063_clear_fault_log(struct da9063 *da9063)
@@ -163,7 +163,7 @@ int da9063_device_init(struct da9063 *da9063, unsigned int 
irq)
 {
        struct da9063_pdata *pdata = da9063->dev->platform_data;
        int model, variant_id, variant_code;
-       int ret;
+       int da9063_devs_len, ret;
 
        ret = da9063_clear_fault_log(da9063);
        if (ret < 0)
@@ -225,9 +225,13 @@ int da9063_device_init(struct da9063 *da9063, unsigned int 
irq)
 
        da9063->irq_base = regmap_irq_chip_get_base(da9063->regmap_irq);
 
-       ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
-                             ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
-                             NULL);
+       da9063_devs_len = ARRAY_SIZE(da9063_devs);
+       /* RTC, the last device in the list, is only present on DA9063 */
+       if (da9063->type == PMIC_TYPE_DA9063L)
+               da9063_devs_len -= 1;
+
+       ret = mfd_add_devices(da9063->dev, -1, da9063_devs, da9063_devs_len,
+                             NULL, da9063->irq_base, NULL);
        if (ret)
                dev_err(da9063->dev, "Cannot add MFD cells\n");
 
-- 
2.16.2