diff options
| author | Heiko Stübner <heiko@sntech.de> | 2014-08-14 23:00:26 +0200 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-09-02 15:03:18 -0700 |
| commit | fe94f974e9c8b820640a5873d81589ab67380516 (patch) | |
| tree | ff4719b1c22c714be7734b914e5b264df4c7b768 /drivers/clk/rockchip/clk-rk3288.c | |
| parent | 1a4b1819950a278e44dd2e28c5cdb7d8b804dd73 (diff) | |
clk: rockchip: protect critical clocks from getting disabled
The clock-tree contains clocks that should never get disabled automatically.
One example are the base ACLKs, the base supplies for all peripherals.
Therefore add a structure similar to the sunxi clock-tree to protect these
special clocks from being disabled.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Doug Anderson <dianders@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/rockchip/clk-rk3288.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3288.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 0d8c6c59a75e..038b1aaf8c56 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -680,6 +680,11 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(0, "pclk_isp_in", "ext_isp", 0, RK3288_CLKGATE_CON(16), 3, GFLAGS), }; +static const char *rk3288_critical_clocks[] __initconst = { + "aclk_cpu", + "aclk_peri", +}; + static void __init rk3288_clk_init(struct device_node *np) { void __iomem *reg_base; @@ -710,6 +715,8 @@ static void __init rk3288_clk_init(struct device_node *np) RK3288_GRF_SOC_STATUS); rockchip_clk_register_branches(rk3288_clk_branches, ARRAY_SIZE(rk3288_clk_branches)); + rockchip_clk_protect_critical(rk3288_critical_clocks, + ARRAY_SIZE(rk3288_critical_clocks)); rockchip_register_softrst(np, 9, reg_base + RK3288_SOFTRST_CON(0), ROCKCHIP_SOFTRST_HIWORD_MASK); |