clk: qcom: Introduce parent_map tables
authorGeorgi Djakov <georgi.djakov@linaro.org>
Fri, 20 Mar 2015 16:30:26 +0000 (18:30 +0200)
committerStephen Boyd <sboyd@codeaurora.org>
Mon, 23 Mar 2015 23:09:19 +0000 (16:09 -0700)
commit293d2e97b37f545bb36aef78cd549d9e6cd66e7f
tree4b8ba1c40d681b198dd67696087cf03531f03ca0
parentfae507afbdf3384227ced662c51c5b6cbff223c8
clk: qcom: Introduce parent_map tables

In the current parent mapping code, we can get duplicate or inconsistent
indexes, which leads to discrepancy between the number of elements in the
array and the number of parents. Until now, this was solved with some
reordering but this is not always possible.

This patch introduces index tables that are used to define the relations
between the PLL source and the hardware mux configuration value.
To accomplish this, here we do the following:
 - Define a parent_map struct to map the relations between PLL source index
 and register configuration value.
 - Add a qcom_find_src_index() function for finding the index of a clock
 matching the specific PLL configuration.
 - Update the {set,get}_parent RCG functions use the newly introduced
 parent_map struct.
 - Convert all existing drivers to the new parent_map tables.

Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
15 files changed:
drivers/clk/qcom/clk-rcg.c
drivers/clk/qcom/clk-rcg.h
drivers/clk/qcom/clk-rcg2.c
drivers/clk/qcom/common.c
drivers/clk/qcom/common.h
drivers/clk/qcom/gcc-apq8084.c
drivers/clk/qcom/gcc-ipq806x.c
drivers/clk/qcom/gcc-msm8660.c
drivers/clk/qcom/gcc-msm8960.c
drivers/clk/qcom/gcc-msm8974.c
drivers/clk/qcom/lcc-ipq806x.c
drivers/clk/qcom/lcc-msm8960.c
drivers/clk/qcom/mmcc-apq8084.c
drivers/clk/qcom/mmcc-msm8960.c
drivers/clk/qcom/mmcc-msm8974.c