Commit 99eb27d6 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Greg Kroah-Hartman

clk/samsung: exynos542x: mark some clocks as critical


[ Upstream commit 318fa46c ]

Some parent clocks of the Exynos542x clock blocks, which have separate
power domains (like DISP, MFC, MSC, GSC, FSYS and G2D) must be always
enabled to access any register related to power management unit or devices
connected to it. For the time being, until a proper solution based on
runtime PM is applied, mark those clocks as critical (instead of ignore
unused or even no flags) to prevent disabling them.
Signed-off-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: default avatarJavier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> [Exynos5800 Peach Pi Chromebook]
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ee96797b
......@@ -586,7 +586,7 @@ static const struct samsung_gate_clock exynos5800_gate_clks[] __initconst = {
GATE(CLK_ACLK550_CAM, "aclk550_cam", "mout_user_aclk550_cam",
GATE_BUS_TOP, 24, 0, 0),
GATE(CLK_ACLK432_SCALER, "aclk432_scaler", "mout_user_aclk432_scaler",
GATE_BUS_TOP, 27, 0, 0),
GATE_BUS_TOP, 27, CLK_IS_CRITICAL, 0),
};
static const struct samsung_mux_clock exynos5420_mux_clks[] __initconst = {
......@@ -956,20 +956,20 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
GATE(CLK_SMMU_G2D, "smmu_g2d", "aclk333_g2d", GATE_IP_G2D, 7, 0, 0),
GATE(0, "aclk200_fsys", "mout_user_aclk200_fsys",
GATE_BUS_FSYS0, 9, CLK_IGNORE_UNUSED, 0),
GATE_BUS_FSYS0, 9, CLK_IS_CRITICAL, 0),
GATE(0, "aclk200_fsys2", "mout_user_aclk200_fsys2",
GATE_BUS_FSYS0, 10, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk333_g2d", "mout_user_aclk333_g2d",
GATE_BUS_TOP, 0, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk266_g2d", "mout_user_aclk266_g2d",
GATE_BUS_TOP, 1, CLK_IGNORE_UNUSED, 0),
GATE_BUS_TOP, 1, CLK_IS_CRITICAL, 0),
GATE(0, "aclk300_jpeg", "mout_user_aclk300_jpeg",
GATE_BUS_TOP, 4, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk333_432_isp0", "mout_user_aclk333_432_isp0",
GATE_BUS_TOP, 5, 0, 0),
GATE(0, "aclk300_gscl", "mout_user_aclk300_gscl",
GATE_BUS_TOP, 6, CLK_IGNORE_UNUSED, 0),
GATE_BUS_TOP, 6, CLK_IS_CRITICAL, 0),
GATE(0, "aclk333_432_gscl", "mout_user_aclk333_432_gscl",
GATE_BUS_TOP, 7, CLK_IGNORE_UNUSED, 0),
GATE(0, "aclk333_432_isp", "mout_user_aclk333_432_isp",
......@@ -983,20 +983,20 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
GATE(0, "aclk166", "mout_user_aclk166",
GATE_BUS_TOP, 14, CLK_IGNORE_UNUSED, 0),
GATE(CLK_ACLK333, "aclk333", "mout_user_aclk333",
GATE_BUS_TOP, 15, CLK_IGNORE_UNUSED, 0),
GATE_BUS_TOP, 15, CLK_IS_CRITICAL, 0),
GATE(0, "aclk400_isp", "mout_user_aclk400_isp",
GATE_BUS_TOP, 16, 0, 0),
GATE(0, "aclk400_mscl", "mout_user_aclk400_mscl",
GATE_BUS_TOP, 17, 0, 0),
GATE(0, "aclk200_disp1", "mout_user_aclk200_disp1",
GATE_BUS_TOP, 18, 0, 0),
GATE_BUS_TOP, 18, CLK_IS_CRITICAL, 0),
GATE(CLK_SCLK_MPHY_IXTAL24, "sclk_mphy_ixtal24", "mphy_refclk_ixtal24",
GATE_BUS_TOP, 28, 0, 0),
GATE(CLK_SCLK_HSIC_12M, "sclk_hsic_12m", "ff_hsic_12m",
GATE_BUS_TOP, 29, 0, 0),
GATE(0, "aclk300_disp1", "mout_user_aclk300_disp1",
SRC_MASK_TOP2, 24, 0, 0),
SRC_MASK_TOP2, 24, CLK_IS_CRITICAL, 0),
GATE(CLK_MAU_EPLL, "mau_epll", "mout_mau_epll_clk",
SRC_MASK_TOP7, 20, 0, 0),
......
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