linux-kernel - [PATCH] mfd: stmpe: honor gpio interrupt probe deferral

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Message-Id: <20180720075535.26988-1-marcel@ziswiler.com>
Date:   Fri, 20 Jul 2018 09:55:35 +0200
From:   Marcel Ziswiler <marcel@...wiler.com>
To:     linux-kernel@...r.kernel.org
Cc:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH] mfd: stmpe: honor gpio interrupt probe deferral

From: Marcel Ziswiler <marcel.ziswiler@...adex.com>

Actually honor probe deferral in trying to get the GPIO interrupt as
of_get_named_gpio_flags() in stmpe_of_probe() may as well just do so.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

---

 drivers/mfd/stmpe.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c
index 566caca4efd8..4d6ffd3ef398 100644
--- a/drivers/mfd/stmpe.c
+++ b/drivers/mfd/stmpe.c
@@ -1331,6 +1331,8 @@ int stmpe_probe(struct stmpe_client_info *ci, enum stmpe_partnum partnum)
 		return -ENOMEM;
 
 	stmpe_of_probe(pdata, np);
+	if (-EPROBE_DEFER == pdata->irq_gpio)
+		return -EPROBE_DEFER;
 
 	if (of_find_property(np, "interrupts", NULL) == NULL)
 		ci->irq = -1;
-- 
2.14.4