linux-kernel - [PATCH 3/3] i2c: owl: Enable asynchronous probing

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Message-Id: <f343802a4b1a8ab6fc78e5db6d24a350b2319495.1602190168.git.cristian.ciocaltea@gmail.com>
Date:   Fri,  9 Oct 2020 00:44:41 +0300
From:   Cristian Ciocaltea <cristian.ciocaltea@...il.com>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Andreas Färber <afaerber@...e.de>,
        Wolfram Sang <wsa@...nel.org>, Peter Rosin <peda@...ntia.se>
Cc:     linux-i2c@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-actions@...ts.infradead.org
Subject: [PATCH 3/3] i2c: owl: Enable asynchronous probing

Speed up the boot process by using the asynchronous probing feature
supported by the recent kernels.

For SBCs based on the Actions Semi S500 SoC, the overall boot time is
expected to be reduced by 200-300 ms.

Suggested-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...il.com>
---
 drivers/i2c/busses/i2c-owl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-owl.c b/drivers/i2c/busses/i2c-owl.c
index 547132768119..ed3942051845 100644
--- a/drivers/i2c/busses/i2c-owl.c
+++ b/drivers/i2c/busses/i2c-owl.c
@@ -521,6 +521,7 @@ static struct platform_driver owl_i2c_driver = {
 	.driver		= {
 		.name	= "owl-i2c",
 		.of_match_table = of_match_ptr(owl_i2c_of_match),
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
 };
 module_platform_driver(owl_i2c_driver);
-- 
2.28.0