Brammo PLL does not allow configuration of VCO and it
supports the dynamic update in which the frequency can
be changed dynamically without turning off the PLL.
Signed-off-by: Abhishek Sahu <absahu@xxxxxxxxxxxxxx>
---
drivers/clk/qcom/clk-alpha-pll.c | 12 ++++++++++++
drivers/clk/qcom/clk-alpha-pll.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index d17d83a..e37a3ab 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -52,6 +52,7 @@
#define PLL_HUAYRA_N_MASK 0xff
#define PLL_HUAYRA_ALPHA_WIDTH 16
+#define PLL_BRAMMO_ALPHA_BITWIDTH 40
/*
* Even though 40 bits are present, use only 32 for ease of calculation.
*/
@@ -105,6 +106,17 @@
[ALPHA_PLL_STATUS] = 0x24,
};
+const u8 brammo_pll_offsets[] = {
+ [ALPHA_PLL_MODE] = 0x00,
+ [ALPHA_PLL_L_VAL] = 0x04,
+ [ALPHA_PLL_ALPHA_VAL] = 0x08,
+ [ALPHA_PLL_ALPHA_VAL_U] = 0x0c,
+ [ALPHA_PLL_USER_CTL] = 0x10,
+ [ALPHA_PLL_CONFIG_CTL] = 0x18,
+ [ALPHA_PLL_TEST_CTL] = 0x1c,
+ [ALPHA_PLL_STATUS] = 0x24,
+};
+
static int wait_for_pll(struct clk_alpha_pll *pll, u32 mask, bool inverse,
const char *action)
{
diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h
index c98e7469..891d14b 100644
--- a/drivers/clk/qcom/clk-alpha-pll.h
+++ b/drivers/clk/qcom/clk-alpha-pll.h
@@ -64,6 +64,7 @@ struct clk_alpha_pll {
#define CLK_HUAYRA_PLL_FLAGS (HAVE_NO_VCO_CONF | SUPPORTS_DYNAMIC_UPDATE | \
SUPPORTS_64BIT_CONFIG_CTL | \
SUPPORTS_16BIT_ALPHA)
+#define CLK_BRAMMO_PLL_FLAGS (HAVE_NO_VCO_CONF | SUPPORTS_DYNAMIC_UPDATE)
/**
* struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
@@ -102,6 +103,7 @@ struct alpha_pll_config {
extern const u8 alpha_pll_offsets[];
extern const u8 huayra_pll_offsets[];
+extern const u8 brammo_pll_offsets[];
extern const struct clk_ops clk_alpha_pll_ops;
extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
--
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