From 32eb5baea14434ad254b64303101d27cd43b61ea Mon Sep 17 00:00:00 2001
From: Thomas Klaehn <tkl@blackfinn.de>
Date: Mon, 14 Aug 2017 10:09:28 +0200
Subject: [PATCH] PWM: enable pwm's in device tree.

Signed-off-by: Thomas Klaehn <tkl@blackfinn.de>
---
 .../linux/files/0001-bbb-enable-pwm.patch     | 45 +++++++++++++++++++
 recipes-kernel/linux/files/enable_pwm.cfg     |  6 +++
 .../linux/linux-yocto_4.10.bbappend           |  7 ++-
 3 files changed, 57 insertions(+), 1 deletion(-)
 create mode 100644 recipes-kernel/linux/files/0001-bbb-enable-pwm.patch
 create mode 100644 recipes-kernel/linux/files/enable_pwm.cfg

diff --git a/recipes-kernel/linux/files/0001-bbb-enable-pwm.patch b/recipes-kernel/linux/files/0001-bbb-enable-pwm.patch
new file mode 100644
index 0000000..54b37d2
--- /dev/null
+++ b/recipes-kernel/linux/files/0001-bbb-enable-pwm.patch
@@ -0,0 +1,45 @@
+diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
+index db00d8ef7b19..9a5f612101db 100644
+--- a/arch/arm/boot/dts/am335x-boneblack.dts
++++ b/arch/arm/boot/dts/am335x-boneblack.dts
+@@ -75,6 +75,40 @@
+ 			AM33XX_IOPAD(0x86c, PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a11.GPIO1_27 */
+ 		>;
+ 	};
++
++	ehrpwm1_pins: pinmux_ehrpwm1a_pins {
++		pinctrl-single,pins = <
++			AM33XX_IOPAD(0x848, PIN_OUTPUT | MUX_MODE6)     /* gpmc_a2.ehrpwm1a */
++			AM33XX_IOPAD(0x84c, PIN_OUTPUT | MUX_MODE6)     /* gpmc_a3.ehrpwm1b */
++		>;
++	};
++
++	ehrpwm2_pins: pinmux_ehrpwm2a_pins {
++		pinctrl-single,pins = <
++			AM33XX_IOPAD(0x820, PIN_OUTPUT | MUX_MODE4)     /* ehrpwm2a */
++			AM33XX_IOPAD(0x824, PIN_OUTPUT | MUX_MODE4)     /* ehrpwm2b */
++		>;
++	};
++};
++
++&epwmss1 {
++       status = "okay";
++};
++
++&epwmss2 {
++       status = "okay";
++};
++
++&ehrpwm1 {
++       status = "okay";
++       pinctrl-names = "default";
++       pinctrl-0 = <&ehrpwm1_pins>;
++};
++
++&ehrpwm2 {
++       status = "okay";
++       pinctrl-names = "default";
++       pinctrl-0 = <&ehrpwm2_pins>;
+ };
+ 
+ &lcdc {
diff --git a/recipes-kernel/linux/files/enable_pwm.cfg b/recipes-kernel/linux/files/enable_pwm.cfg
new file mode 100644
index 0000000..4521209
--- /dev/null
+++ b/recipes-kernel/linux/files/enable_pwm.cfg
@@ -0,0 +1,6 @@
+CONFIG_PWM=y
+CONFIG_PWM_SYSFS=y
+CONFIG_PWM_OMAP_DMTIMER=y
+CONFIG_PWM_TIECAP=y
+CONFIG_PWM_TIEHRPWM=y
+CONFIG_PWM_TIPWMSS=y
diff --git a/recipes-kernel/linux/linux-yocto_4.10.bbappend b/recipes-kernel/linux/linux-yocto_4.10.bbappend
index 8e27c4b..6e4aac6 100644
--- a/recipes-kernel/linux/linux-yocto_4.10.bbappend
+++ b/recipes-kernel/linux/linux-yocto_4.10.bbappend
@@ -3,8 +3,13 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
 
-SRC_URI += "file://rtl8192cu.cfg "
+SRC_URI += " \
+	file://rtl8192cu.cfg \
+	file://enable_pwm.cfg \
+	file://0001-bbb-enable-pwm.patch \
+"
 
 KERNEL_CONFIG_FRAGMENTS_append_ti33x = " \
   ${WORKDIR}/rtl8192cu.cfg \
+  ${WORKDIR}/enable_pwm.cfg \
 "