From: Remi Pommarel <repk@triplefau.lt>
To: Stephen Warren <swarren@wwwdotorg.org>,
Lee Jones <lee@kernel.org>, Eric Anholt <eric@anholt.net>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
linux-rpi-kernel@lists.infradead.org, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Remi Pommarel <repk@triplefau.lt>
Subject: [PATCH v2 0/3] Add PWM clock support for bcm2835
Date: Wed, 11 Nov 2015 15:22:42 +0100 [thread overview]
Message-ID: <1447251765-16297-1-git-send-email-repk@triplefau.lt> (raw)
Hi,
This patchset adds support for pwm clock. At boot, this clock does not have a
default parent nor a default rate set. Thus we should be able to change its
parent to get this clock working. The current clock implementation is using a
mux to select the parent, but these clocks need to add a password (0x5a) in
higher register bits when changing parent. So a generic mux cannot be used
here.
The two first patches fix the clock parent selection, while the second one is
actually adding the pwm clock registration.
Changes since v1:
- determine_rate now based its parent selection upon divided rate
instead of the parent one
- bcm2835_clock_choose_div has been modified to produce an avarage rate
lower or equal to the requested one
- devicetree modifications have removed to be send in another patch
Remi Pommarel (3):
clk: bcm2835: Always round up clock divisor
clk: bcm2835: Support for clock parent selection
clk: bcm2835: Add PWM clock support
drivers/clk/bcm/clk-bcm2835.c | 151 +++++++++++++++++++++++-------------
include/dt-bindings/clock/bcm2835.h | 3 +-
2 files changed, 101 insertions(+), 53 deletions(-)
--
2.0.1
next reply other threads:[~2015-11-11 14:23 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-11 14:22 Remi Pommarel [this message]
2015-11-11 14:22 ` [PATCH v2 1/3] clk: bcm2835: Always round up clock divisor Remi Pommarel
2015-11-18 18:25 ` Eric Anholt
2015-11-18 19:11 ` Remi Pommarel
2015-12-02 22:21 ` Remi Pommarel
2015-12-04 0:31 ` Eric Anholt
2015-11-11 14:22 ` [PATCH v2 2/3] clk: bcm2835: Support for clock parent selection Remi Pommarel
2015-11-18 18:30 ` Eric Anholt
2015-11-18 19:24 ` Remi Pommarel
2015-12-04 0:37 ` Eric Anholt
2015-12-04 20:37 ` Remi Pommarel
2015-12-06 0:19 ` Eric Anholt
2015-11-11 14:22 ` [PATCH v2 3/3] clk: bcm2835: Add PWM clock support Remi Pommarel
2015-11-18 18:32 ` Eric Anholt
2015-11-18 19:26 ` Remi Pommarel
2015-11-28 20:52 ` [PATCH v2 0/3] Add PWM clock support for bcm2835 Stefan Wahren
2015-11-29 0:31 ` Remi Pommarel
2015-11-29 21:22 ` Stefan Wahren
2015-11-29 22:25 ` Remi Pommarel
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