From: petr.cvek@tul•cz (Petr Cvek)
To: 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: 50+ 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
2015-09-26 11:44 ` Robert Jarzmik
2015-09-17 4:55 ` [PATCH v3 02/26] ARM: pxa: magician: Change comments to be more informative Petr Cvek
2015-09-26 11:52 ` Robert Jarzmik
2015-09-17 4:55 ` [PATCH v3 03/26] ARM: pxa: magician: Print more specific error message for global GPIOs Petr Cvek
2015-09-26 11:54 ` Robert Jarzmik
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
2015-09-26 11:59 ` Robert Jarzmik
2015-09-17 4:56 ` [PATCH v3 07/26] ARM: pxa: magician: Fix HTC Magician pin mux definitions Petr Cvek
2015-09-26 14:34 ` Robert Jarzmik
2015-09-17 4:57 ` [PATCH v3 08/26] ARM: pxa: magician: Rename abstract LCD GPIOs Petr Cvek
2015-09-26 14:35 ` Robert Jarzmik
2015-09-17 4:57 ` [PATCH v3 09/26] ARM: pxa: magician: Optimize powerup delays for Samsung LCD Petr Cvek
2015-09-26 14:37 ` Robert Jarzmik
2015-09-17 4:57 ` [PATCH v3 10/26] ARM: pxa: magician: Optimize Samsung LCD refresh to 50Hz Petr Cvek
2015-09-26 14:39 ` Robert Jarzmik
2015-09-17 4:58 ` Petr Cvek [this message]
2015-09-26 14:40 ` [PATCH v3 11/26] ARM: pxa: magician: Optimize EGPIO initial values Robert Jarzmik
2015-09-17 4:58 ` [PATCH v3 12/26] ARM: pxa: magician: Rename charger cable detection EGPIOs Petr Cvek
2015-09-26 14:41 ` Robert Jarzmik
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
2015-09-26 14:47 ` Robert Jarzmik
2015-09-17 4:59 ` [PATCH v3 15/26] ARM: pxa: magician: Fix redundant GPIO request for pxaficp_ir Petr Cvek
2015-09-26 14:51 ` Robert Jarzmik
2015-09-18 1:16 ` [PATCH v3 16/26] ARM: pxa: magician: Fix support for Intel Strata NOR Flash Petr Cvek
2015-09-26 14:56 ` Robert Jarzmik
2015-09-18 1:17 ` [PATCH v3 17/26] ARM: pxa: magician: Fix wrongly enabled USB host ports Petr Cvek
2015-09-26 14:57 ` Robert Jarzmik
2015-09-18 1:18 ` [PATCH v3 18/26] ARM: pxa: magician: Add support for ADS7846 Petr Cvek
2015-09-26 15:00 ` Robert Jarzmik
2015-09-18 1:18 ` [PATCH v3 19/26] ARM: pxa: magician: Add support for Omnivision OV9640 camera Petr Cvek
2015-09-18 1:19 ` [PATCH v3 20/26] ARM: pxa: magician: Add support for MAX1587A Vcore regulator Petr Cvek
2015-09-26 15:02 ` Robert Jarzmik
2015-09-18 1:19 ` [PATCH v3 21/26] ARM: pxa: magician: Add support for PXA27x UDC Petr Cvek
2015-09-26 15:04 ` Robert Jarzmik
2015-09-18 1:20 ` [PATCH v3 22/26] ARM: pxa: magician: Remove pdata for pasic3-leds Petr Cvek
2015-09-18 1:20 ` [PATCH v3 23/26] ARM: pxa: magician: Remove definition of the STUART port Petr Cvek
2015-09-26 15:05 ` Robert Jarzmik
2015-09-18 1:20 ` [PATCH v3 24/26] ARM: pxa: magician: Add debug message for backlight brightness function Petr Cvek
2015-09-26 15:06 ` Robert Jarzmik
2015-09-18 1:21 ` [PATCH v3 25/26] ARM: pxa: magician: Add missing regulator for PWM backlight Petr Cvek
2015-09-26 15:07 ` Robert Jarzmik
2015-09-18 1:21 ` [PATCH v3 26/26] ARM: pxa: magician: Move platform_add_devices() to the end of magician_init() Petr Cvek
2015-09-26 15:09 ` Robert Jarzmik
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