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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 <jonghwa3.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
[s.nawrocki@samsung.com: edited the patch's summary]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
This commit is contained in:
Jonghwa Lee 2016-06-10 13:56:31 +09:00 committed by Sylwester Nawrocki
parent 7d058bc4e6
commit 358c9b952d
1 changed files with 22 additions and 12 deletions
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34
drivers/clk/samsung/clk-exynos5433.c
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@ -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",