diff options
author | James Hogan <james.hogan@imgtec.com> | 2013-07-29 12:25:01 +0100 |
---|---|---|
committer | Mike Turquette <mturquette@linaro.org> | 2013-08-19 12:27:17 -0700 |
commit | 819c1de344c5b8350bffd35be9a0fa74541292d3 (patch) | |
tree | a7829ac81de6d968cc24516f17c87da98c528d06 /drivers/clk/spear/spear1340_clock.c | |
parent | 71472c0c06cf9a3d1540762ea205654c584e3bc4 (diff) | |
download | op-kernel-dev-819c1de344c5b8350bffd35be9a0fa74541292d3.zip op-kernel-dev-819c1de344c5b8350bffd35be9a0fa74541292d3.tar.gz |
clk: add CLK_SET_RATE_NO_REPARENT flag
Add a CLK_SET_RATE_NO_REPARENT clock flag, which will prevent muxes
being reparented during clk_set_rate.
To avoid breaking existing platforms, all callers of clk_register_mux()
are adjusted to pass the new flag. Platform maintainers are encouraged
to remove the flag if they wish to allow mux reparenting on set_rate.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Chao Xie <xiechao.mail@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Emilio López" <emilio@elopez.com.ar>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Chew <achew@nvidia.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: spear-devel@list.st.com
Cc: linux-tegra@vger.kernel.org
Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com> [tegra]
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [sunxi]
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> [Zynq]
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/spear/spear1340_clock.c')
-rw-r--r-- | drivers/clk/spear/spear1340_clock.c | 97 |
1 files changed, 53 insertions, 44 deletions
diff --git a/drivers/clk/spear/spear1340_clock.c b/drivers/clk/spear/spear1340_clock.c index 9d0b394..fe835c1 100644 --- a/drivers/clk/spear/spear1340_clock.c +++ b/drivers/clk/spear/spear1340_clock.c @@ -473,9 +473,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) /* clock derived from 24 or 25 MHz osc clk */ /* vco-pll */ clk = clk_register_mux(NULL, "vco1_mclk", vco_parents, - ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG, - SPEAR1340_PLL1_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(vco_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PLL_CFG, SPEAR1340_PLL1_CLK_SHIFT, + SPEAR1340_PLL_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "vco1_mclk", NULL); clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "vco1_mclk", 0, SPEAR1340_PLL1_CTR, SPEAR1340_PLL1_FRQ, pll_rtbl, @@ -484,9 +484,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "pll1_clk", NULL); clk = clk_register_mux(NULL, "vco2_mclk", vco_parents, - ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG, - SPEAR1340_PLL2_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(vco_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PLL_CFG, SPEAR1340_PLL2_CLK_SHIFT, + SPEAR1340_PLL_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "vco2_mclk", NULL); clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, "vco2_mclk", 0, SPEAR1340_PLL2_CTR, SPEAR1340_PLL2_FRQ, pll_rtbl, @@ -495,9 +495,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "pll2_clk", NULL); clk = clk_register_mux(NULL, "vco3_mclk", vco_parents, - ARRAY_SIZE(vco_parents), 0, SPEAR1340_PLL_CFG, - SPEAR1340_PLL3_CLK_SHIFT, SPEAR1340_PLL_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(vco_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PLL_CFG, SPEAR1340_PLL3_CLK_SHIFT, + SPEAR1340_PLL_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "vco3_mclk", NULL); clk = clk_register_vco_pll("vco3_clk", "pll3_clk", NULL, "vco3_mclk", 0, SPEAR1340_PLL3_CTR, SPEAR1340_PLL3_FRQ, pll_rtbl, @@ -561,8 +561,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, "amba_syn_clk", NULL); clk = clk_register_mux(NULL, "sys_mclk", sys_parents, - ARRAY_SIZE(sys_parents), 0, SPEAR1340_SYS_CLK_CTRL, - SPEAR1340_SCLK_SRC_SEL_SHIFT, + ARRAY_SIZE(sys_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_SYS_CLK_CTRL, SPEAR1340_SCLK_SRC_SEL_SHIFT, SPEAR1340_SCLK_SRC_SEL_MASK, 0, &_lock); clk_register_clkdev(clk, "sys_mclk", NULL); @@ -583,8 +583,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "smp_twd"); clk = clk_register_mux(NULL, "ahb_clk", ahb_parents, - ARRAY_SIZE(ahb_parents), 0, SPEAR1340_SYS_CLK_CTRL, - SPEAR1340_HCLK_SRC_SEL_SHIFT, + ARRAY_SIZE(ahb_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_SYS_CLK_CTRL, SPEAR1340_HCLK_SRC_SEL_SHIFT, SPEAR1340_HCLK_SRC_SEL_MASK, 0, &_lock); clk_register_clkdev(clk, "ahb_clk", NULL); @@ -594,9 +594,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) /* gpt clocks */ clk = clk_register_mux(NULL, "gpt0_mclk", gpt_parents, - ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG, - SPEAR1340_GPT0_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(gpt_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GPT0_CLK_SHIFT, + SPEAR1340_GPT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gpt0_mclk", NULL); clk = clk_register_gate(NULL, "gpt0_clk", "gpt0_mclk", 0, SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_GPT0_CLK_ENB, 0, @@ -604,9 +604,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "gpt0"); clk = clk_register_mux(NULL, "gpt1_mclk", gpt_parents, - ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG, - SPEAR1340_GPT1_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(gpt_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GPT1_CLK_SHIFT, + SPEAR1340_GPT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gpt1_mclk", NULL); clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 0, SPEAR1340_PERIP1_CLK_ENB, SPEAR1340_GPT1_CLK_ENB, 0, @@ -614,9 +614,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "gpt1"); clk = clk_register_mux(NULL, "gpt2_mclk", gpt_parents, - ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG, - SPEAR1340_GPT2_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(gpt_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GPT2_CLK_SHIFT, + SPEAR1340_GPT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gpt2_mclk", NULL); clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 0, SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_GPT2_CLK_ENB, 0, @@ -624,9 +624,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "gpt2"); clk = clk_register_mux(NULL, "gpt3_mclk", gpt_parents, - ARRAY_SIZE(gpt_parents), 0, SPEAR1340_PERIP_CLK_CFG, - SPEAR1340_GPT3_CLK_SHIFT, SPEAR1340_GPT_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(gpt_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GPT3_CLK_SHIFT, + SPEAR1340_GPT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gpt3_mclk", NULL); clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mclk", 0, SPEAR1340_PERIP2_CLK_ENB, SPEAR1340_GPT3_CLK_ENB, 0, @@ -641,7 +641,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "uart0_syn_gclk", NULL); clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents, - ARRAY_SIZE(uart0_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(uart0_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_UART0_CLK_SHIFT, SPEAR1340_UART_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "uart0_mclk", NULL); @@ -658,9 +659,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "uart1_syn_gclk", NULL); clk = clk_register_mux(NULL, "uart1_mclk", uart1_parents, - ARRAY_SIZE(uart1_parents), 0, SPEAR1340_PERIP_CLK_CFG, - SPEAR1340_UART1_CLK_SHIFT, SPEAR1340_UART_CLK_MASK, 0, - &_lock); + ARRAY_SIZE(uart1_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_PERIP_CLK_CFG, SPEAR1340_UART1_CLK_SHIFT, + SPEAR1340_UART_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "uart1_mclk", NULL); clk = clk_register_gate(NULL, "uart1_clk", "uart1_mclk", 0, @@ -698,7 +699,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "c3_syn_gclk", NULL); clk = clk_register_mux(NULL, "c3_mclk", c3_parents, - ARRAY_SIZE(c3_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(c3_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_C3_CLK_SHIFT, SPEAR1340_C3_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "c3_mclk", NULL); @@ -710,8 +712,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) /* gmac */ clk = clk_register_mux(NULL, "phy_input_mclk", gmac_phy_input_parents, - ARRAY_SIZE(gmac_phy_input_parents), 0, - SPEAR1340_GMAC_CLK_CFG, + ARRAY_SIZE(gmac_phy_input_parents), + CLK_SET_RATE_NO_REPARENT, SPEAR1340_GMAC_CLK_CFG, SPEAR1340_GMAC_PHY_INPUT_CLK_SHIFT, SPEAR1340_GMAC_PHY_INPUT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "phy_input_mclk", NULL); @@ -723,15 +725,16 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk1, "phy_syn_gclk", NULL); clk = clk_register_mux(NULL, "phy_mclk", gmac_phy_parents, - ARRAY_SIZE(gmac_phy_parents), 0, + ARRAY_SIZE(gmac_phy_parents), CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_GMAC_PHY_CLK_SHIFT, SPEAR1340_GMAC_PHY_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "stmmacphy.0", NULL); /* clcd */ clk = clk_register_mux(NULL, "clcd_syn_mclk", clcd_synth_parents, - ARRAY_SIZE(clcd_synth_parents), 0, - SPEAR1340_CLCD_CLK_SYNT, SPEAR1340_CLCD_SYNT_CLK_SHIFT, + ARRAY_SIZE(clcd_synth_parents), + CLK_SET_RATE_NO_REPARENT, SPEAR1340_CLCD_CLK_SYNT, + SPEAR1340_CLCD_SYNT_CLK_SHIFT, SPEAR1340_CLCD_SYNT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "clcd_syn_mclk", NULL); @@ -741,7 +744,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, "clcd_syn_clk", NULL); clk = clk_register_mux(NULL, "clcd_pixel_mclk", clcd_pixel_parents, - ARRAY_SIZE(clcd_pixel_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(clcd_pixel_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_CLCD_CLK_SHIFT, SPEAR1340_CLCD_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "clcd_pixel_mclk", NULL); @@ -753,9 +757,9 @@ void __init spear1340_clk_init(void __iomem *misc_base) /* i2s */ clk = clk_register_mux(NULL, "i2s_src_mclk", i2s_src_parents, - ARRAY_SIZE(i2s_src_parents), 0, SPEAR1340_I2S_CLK_CFG, - SPEAR1340_I2S_SRC_CLK_SHIFT, SPEAR1340_I2S_SRC_CLK_MASK, - 0, &_lock); + ARRAY_SIZE(i2s_src_parents), CLK_SET_RATE_NO_REPARENT, + SPEAR1340_I2S_CLK_CFG, SPEAR1340_I2S_SRC_CLK_SHIFT, + SPEAR1340_I2S_SRC_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "i2s_src_mclk", NULL); clk = clk_register_aux("i2s_prs1_clk", NULL, "i2s_src_mclk", @@ -765,7 +769,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, "i2s_prs1_clk", NULL); clk = clk_register_mux(NULL, "i2s_ref_mclk", i2s_ref_parents, - ARRAY_SIZE(i2s_ref_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(i2s_ref_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_I2S_CLK_CFG, SPEAR1340_I2S_REF_SHIFT, SPEAR1340_I2S_REF_SEL_MASK, 0, &_lock); clk_register_clkdev(clk, "i2s_ref_mclk", NULL); @@ -891,13 +896,15 @@ void __init spear1340_clk_init(void __iomem *misc_base) /* RAS clks */ clk = clk_register_mux(NULL, "gen_syn0_1_mclk", gen_synth0_1_parents, - ARRAY_SIZE(gen_synth0_1_parents), 0, SPEAR1340_PLL_CFG, + ARRAY_SIZE(gen_synth0_1_parents), + CLK_SET_RATE_NO_REPARENT, SPEAR1340_PLL_CFG, SPEAR1340_GEN_SYNT0_1_CLK_SHIFT, SPEAR1340_GEN_SYNT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gen_syn0_1_mclk", NULL); clk = clk_register_mux(NULL, "gen_syn2_3_mclk", gen_synth2_3_parents, - ARRAY_SIZE(gen_synth2_3_parents), 0, SPEAR1340_PLL_CFG, + ARRAY_SIZE(gen_synth2_3_parents), + CLK_SET_RATE_NO_REPARENT, SPEAR1340_PLL_CFG, SPEAR1340_GEN_SYNT2_3_CLK_SHIFT, SPEAR1340_GEN_SYNT_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "gen_syn2_3_mclk", NULL); @@ -938,7 +945,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "spear_cec.1"); clk = clk_register_mux(NULL, "spdif_out_mclk", spdif_out_parents, - ARRAY_SIZE(spdif_out_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(spdif_out_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_SPDIF_OUT_CLK_SHIFT, SPEAR1340_SPDIF_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "spdif_out_mclk", NULL); @@ -949,7 +957,8 @@ void __init spear1340_clk_init(void __iomem *misc_base) clk_register_clkdev(clk, NULL, "d0000000.spdif-out"); clk = clk_register_mux(NULL, "spdif_in_mclk", spdif_in_parents, - ARRAY_SIZE(spdif_in_parents), CLK_SET_RATE_PARENT, + ARRAY_SIZE(spdif_in_parents), + CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, SPEAR1340_PERIP_CLK_CFG, SPEAR1340_SPDIF_IN_CLK_SHIFT, SPEAR1340_SPDIF_CLK_MASK, 0, &_lock); clk_register_clkdev(clk, "spdif_in_mclk", NULL); |