clk: qcom: branch: Clean up branch enable registers

Prefix the "branch enable" registers with CBCR_ to be closer to what
they are actually called in Qualcomm terms, use GENMASK instead of
shifting values around and adjust their usage accordingly.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230208091340.124641-5-konrad.dybcio@linaro.org

drivers/clk/qcom/clk-branch.c

@@ -44,17 +44,17 @@ static bool clk_branch2_check_halt(const struct clk_branch *br, bool enabling)
 	u32 val;
 	u32 mask;
 
-	mask = BRANCH_NOC_FSM_STATUS_MASK << BRANCH_NOC_FSM_STATUS_SHIFT;
-	mask |= BRANCH_CLK_OFF;
+	mask = CBCR_NOC_FSM_STATUS;
+	mask |= CBCR_CLK_OFF;
 
 	regmap_read(br->clkr.regmap, br->halt_reg, &val);
 
 	if (enabling) {
 		val &= mask;
-		return (val & BRANCH_CLK_OFF) == 0 ||
-			val == BRANCH_NOC_FSM_STATUS_ON;
+		return (val & CBCR_CLK_OFF) == 0 ||
+			FIELD_GET(CBCR_NOC_FSM_STATUS, val) == FSM_STATUS_ON;
 	} else {
-		return val & BRANCH_CLK_OFF;
+		return val & CBCR_CLK_OFF;
 	}
 }
 

drivers/clk/qcom/clk-branch.h

@@ -39,10 +39,9 @@ struct clk_branch {
 };
 
 /* Branch clock common bits for HLOS-owned clocks */
-#define BRANCH_CLK_OFF			BIT(31)
-#define BRANCH_NOC_FSM_STATUS_SHIFT	28
-#define BRANCH_NOC_FSM_STATUS_MASK	0x7
-#define BRANCH_NOC_FSM_STATUS_ON	(0x2 << BRANCH_NOC_FSM_STATUS_SHIFT)
+#define CBCR_CLK_OFF			BIT(31)
+#define CBCR_NOC_FSM_STATUS		GENMASK(30, 28)
+ #define FSM_STATUS_ON			BIT(1)
 #define CBCR_FORCE_MEM_CORE_ON		BIT(14)
 #define CBCR_FORCE_MEM_PERIPH_ON	BIT(13)
 #define CBCR_FORCE_MEM_PERIPH_OFF	BIT(12)