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authorPhilip, Avinash <avinashphilip@ti.com>2012-11-27 14:18:06 +0530
committerThierry Reding <thierry.reding@avionic-design.de>2012-11-28 15:14:41 +0100
commitaf0ba001d208e117b5f4e4f504672b42a664a7f7 (patch)
tree448f579454bea86b34d3e980c75668e13a43a8fd /drivers/pwm/Makefile
parent83af24027b3df1af5c5a9aa9adcdcfeb3429d3be (diff)
downloadlinux-stericsson-af0ba001d208e117b5f4e4f504672b42a664a7f7.tar.gz
pwm: Add TI PWM subsystem driver
In some platforms (like am33xx), PWM sub modules (ECAP, EHRPWM, EQEP) are integrated to PWM subsystem. These PWM submodules has resources shared and only one register bit-field is provided to control module/clock enable/disable, makes it difficult to handle common resources from independent PWMSS submodule drivers. So the solution here implemented in this patch is, to create driver for PWMSS and take the role of parent driver for PWM submodules. PWMSS parent driver enumerates all the child nodes under PWMSS module. Also symbol "pwmss_submodule_state_change" exported to enable clock gating for individual PWMSS submodules, and submodule drivers has to enable clock gating from their drivers. As this is only supported during DT boot, the parent/child relationship is created and populated in DT execution flow. The only required change is inside DTS file, making EHRPWM & ECAP as a child to PWMSS node. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/pwm/Makefile')
-rw-r--r--drivers/pwm/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index 3b3f4c9aa4ef..4fb39f8b6ba9 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -12,5 +12,6 @@ obj-$(CONFIG_PWM_SPEAR) += pwm-spear.o
obj-$(CONFIG_PWM_TEGRA) += pwm-tegra.o
obj-$(CONFIG_PWM_TIECAP) += pwm-tiecap.o
obj-$(CONFIG_PWM_TIEHRPWM) += pwm-tiehrpwm.o
+obj-$(CONFIG_PWM_TIPWMSS) += pwm-tipwmss.o
obj-$(CONFIG_PWM_TWL6030) += pwm-twl6030.o
obj-$(CONFIG_PWM_VT8500) += pwm-vt8500.o