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linux-ti33x-psp 3.2: fix ehrPWM1 for beaglebone

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This makes the backlight on teh 7" LCD cape work again. Also add a patch to
print the hardware revision of the cape.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
This commit is contained in:
Koen Kooi
2012-04-17 14:47:46 +02:00
committed by Denys Dmytriyenko
parent da08d625f2
commit 933898d1a9
4 changed files with 92 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
recipes-kernel/linux/linux-ti33x-psp-3.2/beaglebone/0027-beaglebone-decrease-PWM-frequency-to-old-value-LCD7-.patch
+27
View File
@@ -0,0 +1,27 @@
From 22560ed5c9c2a4e693adf5981e47f3b5f363676d Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Tue, 17 Apr 2012 11:25:00 +0200
Subject: [PATCH 27/29] beaglebone: decrease PWM frequency to old value, LCD7
doesn't like it
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index 74a7e91..b0ee67e 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -136,7 +136,7 @@ static const struct display_panel disp_panel = {
/* LCD backlight platform Data */
#define AM335X_BACKLIGHT_MAX_BRIGHTNESS 100
#define AM335X_BACKLIGHT_DEFAULT_BRIGHTNESS 50
-#define AM335X_PWM_PERIOD_NANO_SECONDS (5000 * 10)
+#define AM335X_PWM_PERIOD_NANO_SECONDS (1000000 * 5)
#define PWM_DEVICE_ID "ecap.0"
--
1.7.7.6
recipes-kernel/linux/linux-ti33x-psp-3.2/beaglebone/0028-beaglebone-fix-ehrpwm-backlight.patch
+25
View File
@@ -0,0 +1,25 @@
From 2ade67b1a3c53567ea131902c3631f7d57b4332f Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Tue, 17 Apr 2012 12:35:01 +0200
Subject: [PATCH 28/29] beaglebone: fix ehrpwm backlight
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index b0ee67e..0d20bb1 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -1434,6 +1434,7 @@ late_initcall(ecap0_init);
static void enable_ehrpwm1(int evm_id, int profile)
{
ehrpwm_backlight_enable = true;
+ am33xx_register_ehrpwm(1, &pwm_pdata[1]);
}
/* Setup pwm-backlight for bbtoys7lcd */
--
1.7.7.6
recipes-kernel/linux/linux-ti33x-psp-3.2/beaglebone/0029-beaglebone-also-report-cape-revision.patch
+36
View File
@@ -0,0 +1,36 @@
From e6865fbe71c47846a528986effd6b21e4fe3f84b Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Tue, 17 Apr 2012 12:57:38 +0200
Subject: [PATCH 29/29] beaglebone: also report cape revision
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
arch/arm/mach-omap2/board-am335xevm.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am335xevm.c b/arch/arm/mach-omap2/board-am335xevm.c
index 0d20bb1..bfcccd9 100644
--- a/arch/arm/mach-omap2/board-am335xevm.c
+++ b/arch/arm/mach-omap2/board-am335xevm.c
@@ -2097,6 +2097,7 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
int ret;
char tmp[32];
char name[32];
+ char version[4];
char manufacturer[32];
/* get cape specific data */
@@ -2119,8 +2120,9 @@ static void beaglebone_cape_setup(struct memory_accessor *mem_acc, void *context
pr_info("BeagleBone cape EEPROM: found eeprom at address 0x%x\n", capecount + 0x53);
snprintf(name, sizeof(cape_config.name) + 1, "%s", cape_config.name);
+ snprintf(version, sizeof(cape_config.version) + 1, "%s", cape_config.version);
snprintf(manufacturer, sizeof(cape_config.manufacturer) + 1, "%s", cape_config.manufacturer);
- pr_info("BeagleBone cape: %s %s\n", manufacturer, name);
+ pr_info("BeagleBone cape: %s %s, revision %s\n", manufacturer, name, version);
snprintf(tmp, sizeof(cape_config.partnumber) + 1, "%s", cape_config.partnumber);
pr_info("BeagleBone cape partnumber: %s\n", tmp);
--
1.7.7.6
recipes-kernel/linux/linux-ti33x-psp_3.2.bb
+4 -1
View File
@@ -12,7 +12,7 @@ MULTI_CONFIG_BASE_SUFFIX = ""
BRANCH = "v3.2-staging"
SRCREV = "e8004dad869568692ca2a45c04e8464ce48cc4d7"
MACHINE_KERNEL_PR_append = "b+gitr${SRCREV}"
MACHINE_KERNEL_PR_append = "c+gitr${SRCREV}"
COMPATIBLE_MACHINE = "(ti33x)"
@@ -822,4 +822,7 @@ PATCHES_OVER_PSP = " \
file://beaglebone/0024-beaglebone-add-gpio-keys-for-lcd.patch \
file://beaglebone/0025-beaglebone-fix-direction-of-gpio-keys.patch \
file://beaglebone/0026-beaglebone-fix-3.5-lcd-cape-support.patch \
file://beaglebone/0027-beaglebone-decrease-PWM-frequency-to-old-value-LCD7-.patch \
file://beaglebone/0028-beaglebone-fix-ehrpwm-backlight.patch \
file://beaglebone/0029-beaglebone-also-report-cape-revision.patch \
"