clk: qcom: mmcc-msm8996: leave all mmagic gdscs and clocks always enabled

There's no bus infrastructure today to handle all the mmagic bus
clocks and GDSCs needed by all the multimedia blocks in msm8996, like
mdss, video, camera and gpu. Mark all these clocks with a CLK_IS_CRITICAL
and GDSCs with a ALWAYS_ON flag for now so they are left always enabled.
This patch should be reverted at some point when we do have a bus driver
to manage these clocks and GDSCs.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/qcom/gcc-msm8996.c

@@ -3105,7 +3105,7 @@ static struct gdsc aggre0_noc_gdsc = {
 		.name = "aggre0_noc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | ALWAYS_ON,
 };
 
 static struct gdsc hlos1_vote_aggre0_noc_gdsc = {

drivers/clk/qcom/mmcc-msm8996.c

@@ -1245,7 +1245,7 @@ static struct clk_branch mmss_mmagic_ahb_clk = {
 			.name = "mmss_mmagic_ahb_clk",
 			.parent_names = (const char *[]){ "ahb_clk_src" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1260,7 +1260,7 @@ static struct clk_branch mmss_mmagic_cfg_ahb_clk = {
 			.name = "mmss_mmagic_cfg_ahb_clk",
 			.parent_names = (const char *[]){ "ahb_clk_src" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1319,7 +1319,7 @@ static struct clk_branch mmagic_camss_axi_clk = {
 			.name = "mmagic_camss_axi_clk",
 			.parent_names = (const char *[]){ "axi_clk_src" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1334,7 +1334,7 @@ static struct clk_branch mmagic_camss_noc_cfg_ahb_clk = {
 			.name = "mmagic_camss_noc_cfg_ahb_clk",
 			.parent_names = (const char *[]){ "gcc_mmss_noc_cfg_ahb_clk" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1439,7 +1439,7 @@ static struct clk_branch mmagic_mdss_axi_clk = {
 			.name = "mmagic_mdss_axi_clk",
 			.parent_names = (const char *[]){ "axi_clk_src" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1454,7 +1454,7 @@ static struct clk_branch mmagic_mdss_noc_cfg_ahb_clk = {
 			.name = "mmagic_mdss_noc_cfg_ahb_clk",
 			.parent_names = (const char *[]){ "gcc_mmss_noc_cfg_ahb_clk" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1529,7 +1529,7 @@ static struct clk_branch mmagic_video_axi_clk = {
 			.name = "mmagic_video_axi_clk",
 			.parent_names = (const char *[]){ "axi_clk_src" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -1544,7 +1544,7 @@ static struct clk_branch mmagic_video_noc_cfg_ahb_clk = {
 			.name = "mmagic_video_noc_cfg_ahb_clk",
 			.parent_names = (const char *[]){ "gcc_mmss_noc_cfg_ahb_clk" },
 			.num_parents = 1,
-			.flags = CLK_SET_RATE_PARENT,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -2919,7 +2919,7 @@ static struct gdsc mmagic_video_gdsc = {
 		.name = "mmagic_video",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | ALWAYS_ON,
 };
 
 static struct gdsc mmagic_mdss_gdsc = {
@@ -2929,7 +2929,7 @@ static struct gdsc mmagic_mdss_gdsc = {
 		.name = "mmagic_mdss",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | ALWAYS_ON,
 };
 
 static struct gdsc mmagic_camss_gdsc = {
@@ -2939,7 +2939,7 @@ static struct gdsc mmagic_camss_gdsc = {
 		.name = "mmagic_camss",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = VOTABLE,
+	.flags = VOTABLE | ALWAYS_ON,
 };
 
 static struct gdsc venus_gdsc = {