Thread (2 messages) 2 messages, 2 authors, 2015-02-25

[PATCH] clk: qcom: Properly change rates for ahbix clock

From: Kenneth Westfield <hidden>
Date: 2015-02-25 23:05:05
Also in: linux-arm-msm, lkml

On Wed, Feb 25, 2015 at 02:32:07PM -0800, Stephen Boyd wrote:
The ahbix clock can never be turned off. To switch the rates we
need to switch the mux off the M/N counter to an always on source
(XO), reprogram the M/N counter to get the rate we want and
finally switch back to the M/N counter. Add a new ops structure
for this type of clock so that we can set the rate properly.

Fixes: c99e515a92e9 "clk: qcom: Add IPQ806X LPASS clock controller (LCC) driver"
Cc: Kenneth Westfield <redacted>
Signed-off-by: Stephen Boyd <redacted>
---
 drivers/clk/qcom/clk-rcg.c     | 30 ++++++++++++++++++++++++++++++
 drivers/clk/qcom/clk-rcg.h     |  1 +
 drivers/clk/qcom/lcc-ipq806x.c |  5 +----
 3 files changed, 32 insertions(+), 4 deletions(-)
Verified soundcard instantiation on the ipq806x SOC with max98357a codec.

Tested-by: Kenneth Westfield <redacted>

-- 
Kenneth Westfield
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, 
a Linux Foundation Collaborative Project
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