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clk: qcom: Enable clocks which needs to be always on for SDM845

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There are certain clocks which needs to be always enabled for system
operation. Add support for the same by adding 'CLK_IS_CRITICAL' flag
for such clocks.

Signed-off-by: Amit Nischal <anischal@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Amit Nischal
2018-06-11 12:08:15 +05:30
committed by Stephen Boyd
parent ce397d215c
commit cfb8282e18
2 changed files with 41 additions and 4 deletions
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43
drivers/clk/qcom/gcc-sdm845.c
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@@ -1103,6 +1103,7 @@ static struct clk_branch gcc_camera_ahb_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_camera_ahb_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -1129,6 +1130,7 @@ static struct clk_branch gcc_camera_xo_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_camera_xo_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -1270,6 +1272,7 @@ static struct clk_branch gcc_disp_ahb_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_disp_ahb_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -1328,6 +1331,7 @@ static struct clk_branch gcc_disp_xo_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_disp_xo_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -1397,6 +1401,7 @@ static struct clk_branch gcc_gpu_cfg_ahb_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_gpu_cfg_ahb_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -2985,6 +2990,7 @@ static struct clk_branch gcc_video_ahb_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_video_ahb_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -3011,6 +3017,7 @@ static struct clk_branch gcc_video_xo_clk = {
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_video_xo_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
@@ -3049,6 +3056,36 @@ static struct clk_branch gcc_vs_ctrl_clk = {
},
};
static struct clk_branch gcc_cpuss_dvm_bus_clk = {
.halt_reg = 0x48190,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x48190,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "gcc_cpuss_dvm_bus_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch gcc_cpuss_gnoc_clk = {
.halt_reg = 0x48004,
.halt_check = BRANCH_HALT_VOTED,
.hwcg_reg = 0x48004,
.hwcg_bit = 1,
.clkr = {
.enable_reg = 0x52004,
.enable_mask = BIT(22),
.hw.init = &(struct clk_init_data){
.name = "gcc_cpuss_gnoc_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
};
static struct gdsc pcie_0_gdsc = {
.gdscr = 0x6b004,
.pd = {
@@ -3344,6 +3381,8 @@ static struct clk_regmap *gcc_sdm845_clocks[] = {
[GPLL0] = &gpll0.clkr,
[GPLL0_OUT_EVEN] = &gpll0_out_even.clkr,
[GPLL4] = &gpll4.clkr,
[GCC_CPUSS_DVM_BUS_CLK] = &gcc_cpuss_dvm_bus_clk.clkr,
[GCC_CPUSS_GNOC_CLK] = &gcc_cpuss_gnoc_clk.clkr,
};
static const struct qcom_reset_map gcc_sdm845_resets[] = {
@@ -3433,10 +3472,6 @@ static int gcc_sdm845_probe(struct platform_device *pdev)
regmap_update_bits(regmap, 0x09ffc, 0x3, 0x3);
regmap_update_bits(regmap, 0x71028, 0x3, 0x3);
/* Enable CPUSS clocks */
regmap_update_bits(regmap, 0x48190, BIT(0), 0x1);
regmap_update_bits(regmap, 0x52004, BIT(22), 0x1);
return qcom_cc_really_probe(pdev, &gcc_sdm845_desc, regmap);
}