From: Sergey Shtylyov <s.shtylyov@omp.ru>
To: <linux-i2c@vger.kernel.org>
Subject: [PATCH v2 2/3] i2c: pca-platform: fix deferred probing
Date: Thu, 24 Jun 2021 23:23:48 +0300 [thread overview]
Message-ID: <67f7fcd8-797f-b943-02f7-38a0685e96f9@omp.ru> (raw)
In-Reply-To: <f50837d5-9eb0-61c1-6d3a-5f7d1e17b9ae@omp.ru>
The driver's probe() method chooses the polling mode if an IRQ # returned
by platform_get_irq_optional() is 0 or less. We'll have to filter out
-EPROBE_DEFER earlier for the deferred probing to work...
Fixes: 0e8ce93bdceb ("i2c: pca-platform: add devicetree awareness")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
Changed in version 2:
- new patch.
drivers/i2c/busses/i2c-pca-platform.c | 2 ++
1 file changed, 2 insertions(+)
Index: linux/drivers/i2c/busses/i2c-pca-platform.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-pca-platform.c
+++ linux/drivers/i2c/busses/i2c-pca-platform.c
@@ -139,6 +139,8 @@ static int i2c_pca_pf_probe(struct platf
int irq;
irq = platform_get_irq_optional(pdev, 0);
+ if (irq == -EPROBE_DEFER)
+ return irq;
/* If irq is 0, we do polling. */
if (irq < 0)
irq = 0;
next prev parent reply other threads:[~2021-06-24 20:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-24 20:17 [PATCH v2 0/3] Fix deferred probing in the I2C bus drivers Sergey Shtylyov
2021-06-24 20:21 ` [PATCH v2 1/3] i2c: iop3xx: fix deferred probing Sergey Shtylyov
2021-06-24 20:23 ` Sergey Shtylyov [this message]
2021-07-05 19:07 ` [PATCH v2 2/3] i2c: pca-platform: " Sergey Shtylyov
2021-06-24 20:26 ` [PATCH v2 3/3] i2c: synquacer: " Sergey Shtylyov
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