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authorPaul Cercueil <paul@crapouillou.net>2020-03-23 15:24:18 +0100
committerThierry Reding <thierry.reding@gmail.com>2020-03-30 18:03:09 +0200
commitce1f9cece057843a03a6b9de361a03eb37dd3fac (patch)
tree78fa65b5503c5cce3c9934dfc888e95c11132b16 /drivers/pwm/Kconfig
parentd3817a647059a3e5f8791e9b7225d194985aa75f (diff)
downloadlinux-ce1f9cece057843a03a6b9de361a03eb37dd3fac.tar.gz
pwm: jz4740: Use clocks from TCU driver
The ingenic-timer "TCU" driver provides us with clocks, that can be
(un)gated, reparented or reclocked from devicetree, instead of having
these settings hardcoded in this driver.

The new code now uses a clk pointer per PWM (instead of a clk per
pwm-chip before). So the pointer is stored in per-pwm data now.
The calls to arch-specific timer code is replaced with standard
clock API calls to start and stop each channel's clock.

While this driver is devicetree-compatible, it is never (as of now)
probed from devicetree, so this change does not introduce a ABI problem
with current devicetree files.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/Kconfig')
-rw-r--r--drivers/pwm/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 0e64c62d4b6b..6729b0ba1252 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -235,6 +235,7 @@ config PWM_IMX_TPM
 config PWM_JZ4740
 	tristate "Ingenic JZ47xx PWM support"
 	depends on MACH_INGENIC
+	depends on COMMON_CLK
 	help
 	  Generic PWM framework driver for Ingenic JZ47xx based
 	  machines.