[11/13] clk: qcom: support for Brammo PLL

Commit Message

Abhishek Sahu Sept. 28, 2017, 5:50 p.m. UTC

1. Brammo PLL does not allow configuration of VCO
2. Supports the dynamic update in which the frequency can
   be changed dynamically without turning off the PLL
3. The register offsets are different from normal Alpha PLL

Signed-off-by: Abhishek Sahu <[e-mail]>
---
 drivers/clk/qcom/clk-alpha-pll.c | 24 ++++++++++++++++++++++++
 drivers/clk/qcom/clk-alpha-pll.h |  1 +
 2 files changed, 25 insertions(+)

Comments

Stephen Boyd Dec. 9, 2017, 12:18 a.m. UTC | #1

On 09/28, Abhishek Sahu wrote:
> 1. Brammo PLL does not allow configuration of VCO
> 2. Supports the dynamic update in which the frequency can
>    be changed dynamically without turning off the PLL
> 3. The register offsets are different from normal Alpha PLL
> 
> Signed-off-by: Abhishek Sahu <[e-mail]>
> ---

Applied to clk-next

Patch

diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index 4844e63..c682387 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -922,4 +922,28 @@  static int clk_alpha_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate,
 			.set_rate = alpha_pll_huayra_set_rate,
 		},
 	},
+	[CLK_ALPHA_PLL_TYPE_BRAMMO] =  {
+		.reg_offsets = {
+			[PLL_L_VAL] = 0x04,
+			[PLL_ALPHA_VAL] = 0x08,
+			[PLL_ALPHA_VAL_U] = 0x0c,
+			[PLL_USER_CTL] = 0x10,
+			[PLL_CONFIG_CTL] = 0x18,
+			[PLL_TEST_CTL] = 0x1c,
+			[PLL_STATUS] = 0x24,
+		},
+		.alpha_width = 40,
+		.flags = SUPPORTS_DYNAMIC_UPDATE,
+		.ops = {
+			.enable = alpha_pll_default_enable,
+			.disable = alpha_pll_default_disable,
+			.is_enabled = alpha_pll_default_is_enabled,
+			.hwfsm_enable = alpha_pll_default_hwfsm_enable,
+			.hwfsm_disable = alpha_pll_default_hwfsm_disable,
+			.hwfsm_is_enabled = alpha_pll_default_hwfsm_is_enabled,
+			.recalc_rate = alpha_pll_default_recalc_rate,
+			.round_rate = alpha_pll_default_round_rate,
+			.set_rate = alpha_pll_default_set_rate,
+		},
+	},
 };
diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
index fed783e..dee71b4 100644
--- a/drivers/clk/qcom/clk-alpha-pll.h
+++ b/drivers/clk/qcom/clk-alpha-pll.h
@@ -21,6 +21,7 @@ 
 enum {
 	CLK_ALPHA_PLL_TYPE_DEFAULT,
 	CLK_ALPHA_PLL_TYPE_HUAYRA,
+	CLK_ALPHA_PLL_TYPE_BRAMMO,
 	CLK_ALPHA_PLL_TYPE_MAX,
 };