From: Rama Kumar <ramakumar.kanasundara@gmail.com>
To: gregkh@linuxfoundation.org
Cc: jeremy@azazel.net, nishadkamdar@gmail.com,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
Rama Kumar <ramakumar.kanasundara@gmail.com>
Subject: [PATCH] FBTFT: Changed delay function.
Date: Sun, 3 Nov 2019 09:40:03 -0600 [thread overview]
Message-ID: <20191103154003.2739-1-ramakumar.kanasundara@gmail.com> (raw)
Hi,
Changed udelay() to usleep_range() based on the document in the path, "Documentation/timers/timers-howto.rst". It was suggested to use usleep_range() function for sleeping duration between 10us - 20 ms. original code used udelay() for sleeping 20 us.
---
drivers/staging/fbtft/fb_agm1264k-fl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index eeeeec97ad27..471a145e3c00 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -85,7 +85,7 @@ static void reset(struct fbtft_par *par)
dev_dbg(par->info->device, "%s()\n", __func__);
gpiod_set_value(par->gpio.reset, 0);
- udelay(20);
+ usleep_range(20,20);
gpiod_set_value(par->gpio.reset, 1);
mdelay(120);
}
--
Signed-off-by: Rama Kumar <ramakumar.kanasundara@gmail.com>
Thanks,
Rama Kumar
2.17.1
next reply other threads:[~2019-11-03 15:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-03 15:40 Rama Kumar [this message]
2019-11-03 15:59 ` Greg KH
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