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[1/2] clk: qcom: gcc: Add GPU and NPU clocks for SM8150

Message ID 20200424044311.2155917-1-vkoul@kernel.org (mailing list archive)
State Changes Requested, archived
Headers show
Series [1/2] clk: qcom: gcc: Add GPU and NPU clocks for SM8150 | expand

Commit Message

Vinod Koul April 24, 2020, 4:43 a.m. UTC
Add the GPU and NPU clocks for SM8150. They were missed in earlier
addition of clock driver.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 drivers/clk/qcom/gcc-sm8150.c | 72 +++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

Comments

Stephen Boyd April 25, 2020, 7:10 p.m. UTC | #1
Quoting Vinod Koul (2020-04-23 21:43:10)
> Add the GPU and NPU clocks for SM8150. They were missed in earlier
> addition of clock driver.
> 
> Signed-off-by: Vinod Koul <vkoul@kernel.org>

Fixes tag? That way backporters know they're missing this.

> ---
>  drivers/clk/qcom/gcc-sm8150.c | 72 +++++++++++++++++++++++++++++++++++
>  1 file changed, 72 insertions(+)
> 
> diff --git a/drivers/clk/qcom/gcc-sm8150.c b/drivers/clk/qcom/gcc-sm8150.c
> index ef98fdc51755..5c3dc34c955e 100644
> --- a/drivers/clk/qcom/gcc-sm8150.c
> +++ b/drivers/clk/qcom/gcc-sm8150.c
> @@ -1617,6 +1617,40 @@ static struct clk_branch gcc_gpu_cfg_ahb_clk = {
>         },
>  };
>  
> +/* external clocks so add BRANCH_HALT_SKIP */
> +static struct clk_branch gcc_gpu_gpll0_clk_src = {
> +       .halt_check = BRANCH_HALT_SKIP,
> +       .clkr = {
> +               .enable_reg = 0x52004,
> +               .enable_mask = BIT(15),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_gpu_gpll0_clk_src",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &gpll0.clkr.hw },
> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
> +/* these are external clocks so add BRANCH_HALT_SKIP */
> +static struct clk_branch gcc_gpu_gpll0_div_clk_src = {
> +       .halt_check = BRANCH_HALT_SKIP,
> +       .clkr = {
> +               .enable_reg = 0x52004,
> +               .enable_mask = BIT(16),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_gpu_gpll0_div_clk_src",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &gcc_gpu_gpll0_clk_src.clkr.hw },
> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
>  static struct clk_branch gcc_gpu_iref_clk = {
>         .halt_reg = 0x8c010,
>         .halt_check = BRANCH_HALT,
> @@ -1699,6 +1733,40 @@ static struct clk_branch gcc_npu_cfg_ahb_clk = {
>         },
>  };
>  
> +/* external clocks so add BRANCH_HALT_SKIP */
> +static struct clk_branch gcc_npu_gpll0_clk_src = {
> +       .halt_check = BRANCH_HALT_SKIP,
> +       .clkr = {
> +               .enable_reg = 0x52004,
> +               .enable_mask = BIT(18),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_npu_gpll0_clk_src",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &gpll0.clkr.hw },
> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
> +/* external clocks so add BRANCH_HALT_SKIP */

None of these look external. The parents are all inside this driver. Why
are we skipping the halt check?

> +static struct clk_branch gcc_npu_gpll0_div_clk_src = {
> +       .halt_check = BRANCH_HALT_SKIP,
> +       .clkr = {
> +               .enable_reg = 0x52004,
> +               .enable_mask = BIT(19),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_npu_gpll0_div_clk_src",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &gcc_npu_gpll0_clk_src.clkr.hw },
> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
>  static struct clk_branch gcc_npu_trig_clk = {
>         .halt_reg = 0x4d00c,
>         .halt_check = BRANCH_VOTED,
Vinod Koul April 27, 2020, 4:41 a.m. UTC | #2
On 25-04-20, 12:10, Stephen Boyd wrote:
> Quoting Vinod Koul (2020-04-23 21:43:10)
> > Add the GPU and NPU clocks for SM8150. They were missed in earlier
> > addition of clock driver.
> > 
> > Signed-off-by: Vinod Koul <vkoul@kernel.org>
> 
> Fixes tag? That way backporters know they're missing this.

Yes it makes sense to add here, will add.

> > +/* external clocks so add BRANCH_HALT_SKIP */
> > +static struct clk_branch gcc_npu_gpll0_clk_src = {
> > +       .halt_check = BRANCH_HALT_SKIP,
> > +       .clkr = {
> > +               .enable_reg = 0x52004,
> > +               .enable_mask = BIT(18),
> > +               .hw.init = &(struct clk_init_data){
> > +                       .name = "gcc_npu_gpll0_clk_src",
> > +                       .parent_hws = (const struct clk_hw *[]){
> > +                               &gpll0.clkr.hw },
> > +                       .num_parents = 1,
> > +                       .flags = CLK_SET_RATE_PARENT,
> > +                       .ops = &clk_branch2_ops,
> > +               },
> > +       },
> > +};
> > +
> > +/* external clocks so add BRANCH_HALT_SKIP */
> 
> None of these look external. The parents are all inside this driver. Why
> are we skipping the halt check?

yeah not sure why this got added here, tested and these look fine. I
will update these and send update.

Thanks for the review
diff mbox series

Patch

diff --git a/drivers/clk/qcom/gcc-sm8150.c b/drivers/clk/qcom/gcc-sm8150.c
index ef98fdc51755..5c3dc34c955e 100644
--- a/drivers/clk/qcom/gcc-sm8150.c
+++ b/drivers/clk/qcom/gcc-sm8150.c
@@ -1617,6 +1617,40 @@  static struct clk_branch gcc_gpu_cfg_ahb_clk = {
 	},
 };
 
+/* external clocks so add BRANCH_HALT_SKIP */
+static struct clk_branch gcc_gpu_gpll0_clk_src = {
+	.halt_check = BRANCH_HALT_SKIP,
+	.clkr = {
+		.enable_reg = 0x52004,
+		.enable_mask = BIT(15),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_gpu_gpll0_clk_src",
+			.parent_hws = (const struct clk_hw *[]){
+				&gpll0.clkr.hw },
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+/* these are external clocks so add BRANCH_HALT_SKIP */
+static struct clk_branch gcc_gpu_gpll0_div_clk_src = {
+	.halt_check = BRANCH_HALT_SKIP,
+	.clkr = {
+		.enable_reg = 0x52004,
+		.enable_mask = BIT(16),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_gpu_gpll0_div_clk_src",
+			.parent_hws = (const struct clk_hw *[]){
+				&gcc_gpu_gpll0_clk_src.clkr.hw },
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct clk_branch gcc_gpu_iref_clk = {
 	.halt_reg = 0x8c010,
 	.halt_check = BRANCH_HALT,
@@ -1699,6 +1733,40 @@  static struct clk_branch gcc_npu_cfg_ahb_clk = {
 	},
 };
 
+/* external clocks so add BRANCH_HALT_SKIP */
+static struct clk_branch gcc_npu_gpll0_clk_src = {
+	.halt_check = BRANCH_HALT_SKIP,
+	.clkr = {
+		.enable_reg = 0x52004,
+		.enable_mask = BIT(18),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_npu_gpll0_clk_src",
+			.parent_hws = (const struct clk_hw *[]){
+				&gpll0.clkr.hw },
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+/* external clocks so add BRANCH_HALT_SKIP */
+static struct clk_branch gcc_npu_gpll0_div_clk_src = {
+	.halt_check = BRANCH_HALT_SKIP,
+	.clkr = {
+		.enable_reg = 0x52004,
+		.enable_mask = BIT(19),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_npu_gpll0_div_clk_src",
+			.parent_hws = (const struct clk_hw *[]){
+				&gcc_npu_gpll0_clk_src.clkr.hw },
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct clk_branch gcc_npu_trig_clk = {
 	.halt_reg = 0x4d00c,
 	.halt_check = BRANCH_VOTED,
@@ -3375,12 +3443,16 @@  static struct clk_regmap *gcc_sm8150_clocks[] = {
 	[GCC_GP3_CLK] = &gcc_gp3_clk.clkr,
 	[GCC_GP3_CLK_SRC] = &gcc_gp3_clk_src.clkr,
 	[GCC_GPU_CFG_AHB_CLK] = &gcc_gpu_cfg_ahb_clk.clkr,
+	[GCC_GPU_GPLL0_CLK_SRC] = &gcc_gpu_gpll0_clk_src.clkr,
+	[GCC_GPU_GPLL0_DIV_CLK_SRC] = &gcc_gpu_gpll0_div_clk_src.clkr,
 	[GCC_GPU_IREF_CLK] = &gcc_gpu_iref_clk.clkr,
 	[GCC_GPU_MEMNOC_GFX_CLK] = &gcc_gpu_memnoc_gfx_clk.clkr,
 	[GCC_GPU_SNOC_DVM_GFX_CLK] = &gcc_gpu_snoc_dvm_gfx_clk.clkr,
 	[GCC_NPU_AT_CLK] = &gcc_npu_at_clk.clkr,
 	[GCC_NPU_AXI_CLK] = &gcc_npu_axi_clk.clkr,
 	[GCC_NPU_CFG_AHB_CLK] = &gcc_npu_cfg_ahb_clk.clkr,
+	[GCC_NPU_GPLL0_CLK_SRC] = &gcc_npu_gpll0_clk_src.clkr,
+	[GCC_NPU_GPLL0_DIV_CLK_SRC] = &gcc_npu_gpll0_div_clk_src.clkr,
 	[GCC_NPU_TRIG_CLK] = &gcc_npu_trig_clk.clkr,
 	[GCC_PCIE0_PHY_REFGEN_CLK] = &gcc_pcie0_phy_refgen_clk.clkr,
 	[GCC_PCIE1_PHY_REFGEN_CLK] = &gcc_pcie1_phy_refgen_clk.clkr,