pinctrl: qcom: lpass-lpi: increase MAX_NR_GPIO to 32

Account for more than only 23 GPIOs in LPASS Low Power Island pinctrl
generic driver. The previous value 23 was chosen to satisfy existing
SoC-specific drivers. However SM4250 LPI pinctrl uses more than 23 GPIOs
and its probe routine fails on:

        if (WARN_ON(data->npins > MAX_NR_GPIO))
                return -EINVAL;

with the following message:

[   10.709014] ------------[ cut here ]------------
[   10.719085] WARNING: CPU: 1 PID: 56 at
drivers/pinctrl/qcom/pinctrl-lpass-lpi.c:446
lpi_pinctrl_probe+0x308/0x388 [pinctrl_lpass_lpi]
[   10.719108] Modules linked in: [...]
[   10.719238] CPU: 1 PID: 56 Comm: kworker/u33:0 Not tainted
6.10.0-rc2-00012-ge45ddb1f8d34-dirty #7
[   10.719245] Hardware name: Qualcomm Technologies, Inc. QRB4210 RB2 (DT)
[   10.719250] Workqueue: events_unbound deferred_probe_work_func
[   10.719265] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   10.719271] pc : lpi_pinctrl_probe+0x308/0x388 [pinctrl_lpass_lpi]
[   10.719278] lr : lpi_pinctrl_probe+0x44/0x388 [pinctrl_lpass_lpi]
        ...
[   10.719357] Call trace:
[   10.719361]  lpi_pinctrl_probe+0x308/0x388 [pinctrl_lpass_lpi]
[   10.719369]  platform_probe+0x68/0xc4
[   10.719378]  really_probe+0xbc/0x29c
[   10.719384]  __driver_probe_device+0x78/0x12c
[   10.719390]  driver_probe_device+0xd8/0x15c
[   10.719395]  __device_attach_driver+0xb8/0x134
[   10.719401]  bus_for_each_drv+0x88/0xe8
[   10.719407]  __device_attach+0xa0/0x190
[   10.719412]  device_initial_probe+0x14/0x20
[   10.719418]  bus_probe_device+0xac/0xb0
[   10.719423]  deferred_probe_work_func+0x88/0xc0
[   10.719429]  process_one_work+0x150/0x294
[   10.719439]  worker_thread+0x2f8/0x408
[   10.719445]  kthread+0x110/0x114
[   10.719452]  ret_from_fork+0x10/0x20
[   10.719459] ---[ end trace 0000000000000000 ]---
[   10.719589] qcom-sm4250-lpass-lpi-pinctrl a7c0000.pinctrl: probe
with driver qcom-sm4250-lpass-lpi-pinctrl failed with error -22

Fixes: c2e5a25e8d88 ("pinctrl: qcom: Introduce SM4250 LPI pinctrl driver")
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/20240627003654.242870-1-alexey.klimov@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
index 0d98008e33eea1cc053c3adb4d7f0dbc15e1fd98..7366aba5a199b46bab7d722856ee30f5dc7ff72b 100644 (file)
--- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
@@ -20,7 +20,7 @@
 
 #include "pinctrl-lpass-lpi.h"
 
-#define MAX_NR_GPIO            23
+#define MAX_NR_GPIO            32
 #define GPIO_FUNC              0
 #define MAX_LPI_NUM_CLKS       2