clk: divider: add CLK_DIVIDER_HIWORD_MASK flag
In both Hisilicon & Rockchip Cortex-A9 based chips, they don't use the paradigm of reading-changing-writing the register contents. Instead they use a hiword mask to indicate the changed bits. When b01 should be set as setting divider, it also needs to indicate the change by setting hiword mask (b11 << 16). The patch adds divider flag for this usage. Signed-off-by: NHeiko Stuebner <heiko@sntech.de> Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: NMike Turquette <mturquette@linaro.org>
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