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Subject[PATCH 06/13] clk: qcom: flag for 64 bit CONFIG_CTL
Date
Some of the Alpha PLL’s (like Spark, Brammo PLL) do not have
CONFIG_CTL_U register. This patch adds the flag in properties
for PLL’s which have CONFIG_CTL_U register and checks the same
while doing PLL initial configuration.

Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
---
drivers/clk/qcom/clk-alpha-pll.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c
index 78eb6bf..b33d120 100644
--- a/drivers/clk/qcom/clk-alpha-pll.c
+++ b/drivers/clk/qcom/clk-alpha-pll.c
@@ -49,6 +49,9 @@
/* Returns the Alpha register width for pll type */
#define pll_alpha_width(type) (alpha_pll_props[type].alpha_width)

+/* Returns the flags for pll type */
+#define pll_flags(type) (alpha_pll_props[type].flags)
+
/* Returns the alpha_pll_clk_ops for pll type */
#define pll_clk_ops(hw) (alpha_pll_props[to_clk_alpha_pll(hw)-> \
pll_type].ops)
@@ -130,6 +133,9 @@ struct alpha_pll_clk_ops {
struct alpha_pll_props {
u8 reg_offsets[PLL_MAX_REGS];
u8 alpha_width;
+
+#define HAVE_64BIT_CONFIG_CTL BIT(0)
+ u8 flags;
struct alpha_pll_clk_ops ops;
};

@@ -180,7 +186,7 @@ void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
{
u32 val, mask;
u32 off = pll->offset;
- u8 type = pll->pll_type;
+ u8 type = pll->pll_type, flags = pll_flags(type);

regmap_write(regmap, off + pll_l(type), config->l);
regmap_write(regmap, off + pll_alpha(type), config->alpha);
@@ -188,6 +194,10 @@ void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
regmap_write(regmap, off + pll_cfg_ctl_u(type),
config->config_ctl_hi_val);

+ if (flags & HAVE_64BIT_CONFIG_CTL)
+ regmap_write(regmap, off + pll_cfg_ctl_u(type),
+ config->config_ctl_hi_val);
+
val = config->main_output_mask;
val |= config->aux_output_mask;
val |= config->aux2_output_mask;
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
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