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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Phil Reid <preid@electromag.com.au>,
	dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: [PATCH v3 2/4] staging: fbtft: Replace custom ->reset() with generic one
Date: Wed, 28 Apr 2021 16:04:13 +0300	[thread overview]
Message-ID: <20210428130415.55406-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20210428130415.55406-1-andriy.shevchenko@linux.intel.com>

The custom ->reset() repeats the generic one, replace it.

Note, in newer kernels the context of the function is a sleeping one,
it's fine to switch over to the sleeping functions. Keeping the reset
line asserted longer than 20 microseconds is also okay, it's an idling
state of the hardware.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/staging/fbtft/fb_agm1264k-fl.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c
index b545c2ca80a4..207d578547cd 100644
--- a/drivers/staging/fbtft/fb_agm1264k-fl.c
+++ b/drivers/staging/fbtft/fb_agm1264k-fl.c
@@ -77,19 +77,6 @@ static int init_display(struct fbtft_par *par)
 	return 0;
 }
 
-static void reset(struct fbtft_par *par)
-{
-	if (!par->gpio.reset)
-		return;
-
-	dev_dbg(par->info->device, "%s()\n", __func__);
-
-	gpiod_set_value(par->gpio.reset, 1);
-	udelay(20);
-	gpiod_set_value(par->gpio.reset, 0);
-	mdelay(120);
-}
-
 /* Check if all necessary GPIOS defined */
 static int verify_gpios(struct fbtft_par *par)
 {
@@ -439,7 +426,6 @@ static struct fbtft_display display = {
 		.set_addr_win = set_addr_win,
 		.verify_gpios = verify_gpios,
 		.request_gpios_match = request_gpios_match,
-		.reset = reset,
 		.write = write,
 		.write_register = write_reg8_bus8,
 		.write_vmem = write_vmem,
-- 
2.30.2


  parent reply	other threads:[~2021-04-28 13:04 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-28 13:04 [PATCH v3 0/4] staging: fbtft: Fixing GPIO handling issues Andy Shevchenko
2021-04-28 13:04 ` [PATCH v3 1/4] staging: fbtft: Rectify GPIO handling Andy Shevchenko
2021-05-03 16:38   ` Greg Kroah-Hartman
2021-05-03 17:08     ` Andy Shevchenko
2021-04-28 13:04 ` Andy Shevchenko [this message]
2021-04-28 13:04 ` [PATCH v3 3/4] staging: fbtft: Don't spam logs when probe is deferred Andy Shevchenko
2021-04-29 14:42   ` Dan Carpenter
2021-04-29 15:40     ` Dan Carpenter
2021-04-29 16:56     ` Andy Shevchenko
2021-04-28 13:04 ` [PATCH v3 4/4] staging: fbtft: Update TODO Andy Shevchenko

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