From: Petr Cvek <petr.cvek@tul.cz>
To: robert.jarzmik@free.fr, philipp.zabel@gmail.com,
daniel@zonque.org, haojian.zhuang@gmail.com, cooloney@gmail.com,
rpurdie@rpsys.net, j.anaszewski@samsung.com,
linux@arm.linux.org.uk, sre@kernel.org, dbaryshkov@gmail.com,
lee.jones@linaro.org, sameo@linux.intel.com, dwmw2@infradead.org,
arnd@arndb.de, g.liakhovetski@gmx.de
Cc: linux-leds@vger.kernel.org, linux-pm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 11/26] ARM: pxa: magician: Optimize EGPIO initial values
Date: Thu, 17 Sep 2015 06:58:24 +0200 [thread overview]
Message-ID: <55FA4870.7040907@tul.cz> (raw)
In-Reply-To: <cover.1442462898.git.petr.cvek@tul.cz>
This patch optimizes initial values of the EGPIO chip driver.
GSM and sound should be powered off during boot. A weak accumulator and
a powered GSM sometimes cause a system reboot. A charging current should be
as high as possible during boot.
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
---
arch/arm/mach-pxa/magician.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 2c487ae..bf0760e 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -263,9 +263,12 @@ static struct htc_egpio_chip egpio_chips[] = {
.num_gpios = 24,
.direction = HTC_EGPIO_OUTPUT,
/*
- * Depends on modules configuration
+ * NOTICE LCD valid power on sequence
+ * Disable GSM and sound
+ * Low accu can cause reboot, set 500mA charging
+ * OR 0x8000 for LCD backlight (debug printks)
*/
- .initial_values = 0x40,
+ .initial_values = 0x2020c0,
},
[1] = {
.reg_start = 4,
--
1.7.12.1
next prev parent reply other threads:[~2015-09-17 4:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1442462898.git.petr.cvek@tul.cz>
2015-09-17 4:54 ` [PATCH v3 01/26] ARM: pxa: magician: Fix indentation in machine files Petr Cvek
2015-09-17 4:55 ` [PATCH v3 02/26] ARM: pxa: magician: Change comments to be more informative Petr Cvek
2015-09-17 4:55 ` [PATCH v3 03/26] ARM: pxa: magician: Print more specific error message for global GPIOs Petr Cvek
2015-09-17 4:55 ` [PATCH v3 04/26] ARM: pxa: magician: Optimize debug messages for LCD power Petr Cvek
2015-09-26 11:55 ` Robert Jarzmik
2015-09-17 4:55 ` [PATCH v3 05/26] ARM: pxa: magician: Change description of LCD power GPIO Petr Cvek
2015-09-26 11:55 ` Robert Jarzmik
2015-09-17 4:56 ` [PATCH v3 06/26] ARM: pxa: magician: Add new discovered EGPIO pins Petr Cvek
2015-09-17 4:56 ` [PATCH v3 07/26] ARM: pxa: magician: Fix HTC Magician pin mux definitions Petr Cvek
2015-09-17 4:57 ` [PATCH v3 08/26] ARM: pxa: magician: Rename abstract LCD GPIOs Petr Cvek
2015-09-17 4:57 ` [PATCH v3 09/26] ARM: pxa: magician: Optimize powerup delays for Samsung LCD Petr Cvek
2015-09-17 4:57 ` [PATCH v3 10/26] ARM: pxa: magician: Optimize Samsung LCD refresh to 50Hz Petr Cvek
2015-09-17 4:58 ` Petr Cvek [this message]
2015-09-17 4:58 ` [PATCH v3 12/26] ARM: pxa: magician: Rename charger cable detection EGPIOs Petr Cvek
2015-09-17 4:59 ` [PATCH v3 13/26] ARM: pxa: magician: Fix and add charging detection functions Petr Cvek
2015-09-26 14:45 ` Robert Jarzmik
2015-09-17 4:59 ` [PATCH v3 14/26] ARM: pxa: magician: Fix platform data for both PXA27x I2C controllers Petr Cvek
2015-09-17 4:59 ` [PATCH v3 15/26] ARM: pxa: magician: Fix redundant GPIO request for pxaficp_ir Petr Cvek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55FA4870.7040907@tul.cz \
--to=petr.cvek@tul.cz \
--cc=arnd@arndb.de \
--cc=cooloney@gmail.com \
--cc=daniel@zonque.org \
--cc=dbaryshkov@gmail.com \
--cc=dwmw2@infradead.org \
--cc=g.liakhovetski@gmx.de \
--cc=haojian.zhuang@gmail.com \
--cc=j.anaszewski@samsung.com \
--cc=lee.jones@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-leds@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=philipp.zabel@gmail.com \
--cc=robert.jarzmik@free.fr \
--cc=rpurdie@rpsys.net \
--cc=sameo@linux.intel.com \
--cc=sre@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox