From 358c9b952db6e85c861d97cb6ea8474671a025d0 Mon Sep 17 00:00:00 2001 From: Jonghwa Lee Date: Fri, 10 Jun 2016 13:56:31 +0900 Subject: [PATCH] clk: samsung: exynos5433: Add CLK_IGNORE_UNUSED flags to avoid hang during S2R Some clocks are required to be unmasked during suspend to RAM. Otherwise the PMU will stuck and the power down sequence will never be completed. Signed-off-by: Jonghwa Lee Signed-off-by: Chanwoo Choi [s.nawrocki@samsung.com: edited the patch's summary] Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos5433.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c index be3658d..5d26c0f 100644 --- a/drivers/clk/samsung/clk-exynos5433.c +++ b/drivers/clk/samsung/clk-exynos5433.c @@ -670,11 +670,14 @@ static const struct samsung_gate_clock top_gate_clks[] __initconst = { GATE(CLK_SCLK_PCM1_PERIC, "sclk_pcm1_peric", "div_sclk_pcm1", ENABLE_SCLK_TOP_PERIC, 7, CLK_SET_RATE_PARENT, 0), GATE(CLK_SCLK_UART2_PERIC, "sclk_uart2_peric", "div_sclk_uart2", - ENABLE_SCLK_TOP_PERIC, 5, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_TOP_PERIC, 5, CLK_SET_RATE_PARENT | + CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_UART1_PERIC, "sclk_uart1_peric", "div_sclk_uart1", - ENABLE_SCLK_TOP_PERIC, 4, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_TOP_PERIC, 4, CLK_SET_RATE_PARENT | + CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_UART0_PERIC, "sclk_uart0_peric", "div_sclk_uart0", - ENABLE_SCLK_TOP_PERIC, 3, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_TOP_PERIC, 3, CLK_SET_RATE_PARENT | + CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_SPI2_PERIC, "sclk_spi2_peric", "div_sclk_spi2_b", ENABLE_SCLK_TOP_PERIC, 2, CLK_SET_RATE_PARENT, 0), GATE(CLK_SCLK_SPI1_PERIC, "sclk_spi1_peric", "div_sclk_spi1_b", @@ -835,7 +838,7 @@ static const struct samsung_div_clock cpif_div_clks[] __initconst = { static const struct samsung_gate_clock cpif_gate_clks[] __initconst = { /* ENABLE_SCLK_CPIF */ GATE(CLK_SCLK_MPHY_PLL, "sclk_mphy_pll", "mout_mphy_pll", - ENABLE_SCLK_CPIF, 9, 0, 0), + ENABLE_SCLK_CPIF, 9, CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_UFS_MPHY, "sclk_ufs_mphy", "div_sclk_mphy", ENABLE_SCLK_CPIF, 4, 0, 0), }; @@ -1442,11 +1445,13 @@ static const struct samsung_gate_clock mif_gate_clks[] __initconst = { /* ENABLE_PCLK_MIF_SECURE_DREX0_TZ */ GATE(CLK_PCLK_DREX0_TZ, "pclk_drex0_tz", "div_aclk_mif_133", - ENABLE_PCLK_MIF_SECURE_DREX0_TZ, 0, 0, 0), + ENABLE_PCLK_MIF_SECURE_DREX0_TZ, 0, + CLK_IGNORE_UNUSED, 0), /* ENABLE_PCLK_MIF_SECURE_DREX1_TZ */ GATE(CLK_PCLK_DREX1_TZ, "pclk_drex1_tz", "div_aclk_mif_133", - ENABLE_PCLK_MIF_SECURE_DREX1_TZ, 0, 0, 0), + ENABLE_PCLK_MIF_SECURE_DREX1_TZ, 0, + CLK_IGNORE_UNUSED, 0), /* ENABLE_PCLK_MIF_SECURE_MONOTONIC_CNT */ GATE(CLK_PCLK_MONOTONIC_CNT, "pclk_monotonic_cnt", "div_aclk_mif_133", @@ -1676,11 +1681,14 @@ static const struct samsung_gate_clock peric_gate_clks[] __initconst = { GATE(CLK_SCLK_SPI0, "sclk_spi0", "sclk_spi0_peric", ENABLE_SCLK_PERIC, 3, CLK_SET_RATE_PARENT, 0), GATE(CLK_SCLK_UART2, "sclk_uart2", "sclk_uart2_peric", - ENABLE_SCLK_PERIC, 2, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_PERIC, 2, + CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_UART1, "sclk_uart1", "sclk_uart1_peric", - ENABLE_SCLK_PERIC, 1, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_PERIC, 1, + CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0), GATE(CLK_SCLK_UART0, "sclk_uart0", "sclk_uart0_peric", - ENABLE_SCLK_PERIC, 0, CLK_SET_RATE_PARENT, 0), + ENABLE_SCLK_PERIC, 0, + CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0), }; static const struct samsung_cmu_info peric_cmu_info __initconst = { @@ -2964,7 +2972,7 @@ static const struct samsung_gate_clock aud_gate_clks[] __initconst = { /* ENABLE_SCLK_AUD0 */ GATE(CLK_ATCLK_AUD, "atclk_aud", "div_atclk_aud", ENABLE_SCLK_AUD0, - 2, 0, 0), + 2, CLK_IGNORE_UNUSED, 0), GATE(CLK_PCLK_DBG_AUD, "pclk_dbg_aud", "div_pclk_dbg_aud", ENABLE_SCLK_AUD0, 1, 0, 0), GATE(CLK_SCLK_AUD_CA5, "sclk_aud_ca5", "div_aud_ca5", ENABLE_SCLK_AUD0, @@ -3358,9 +3366,11 @@ static const struct samsung_gate_clock gscl_gate_clks[] __initconst = { GATE(CLK_ACLK_GSCLNP_111, "aclk_gsclnp_111", "mout_aclk_gscl_111_user", ENABLE_ACLK_GSCL, 6, CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_GSCLRTND_333, "aclk_gsclrtnd_333", - "mout_aclk_gscl_333_user", ENABLE_ACLK_GSCL, 5, 0, 0), + "mout_aclk_gscl_333_user", ENABLE_ACLK_GSCL, 5, + CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_GSCLBEND_333, "aclk_gsclbend_333", - "mout_aclk_gscl_333_user", ENABLE_ACLK_GSCL, 4, 0, 0), + "mout_aclk_gscl_333_user", ENABLE_ACLK_GSCL, 4, + CLK_IGNORE_UNUSED, 0), GATE(CLK_ACLK_GSD, "aclk_gsd", "mout_aclk_gscl_333_user", ENABLE_ACLK_GSCL, 3, 0, 0), GATE(CLK_ACLK_GSCL2, "aclk_gscl2", "mout_aclk_gscl_333_user", -- 2.7.4