linux-kernel - [PATCH v6 04/10] clk: qcom: branch: Clean up branch enable registers

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Date:   Wed,  8 Feb 2023 10:13:34 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org, krzysztof.kozlowski@...aro.org
Cc:     marijn.suijten@...ainline.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v6 04/10] 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@...aro.org>
---
 drivers/clk/qcom/clk-branch.c | 10 +++++-----
 drivers/clk/qcom/clk-branch.h |  7 +++----
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/clk/qcom/clk-branch.c b/drivers/clk/qcom/clk-branch.c
index f2b577b07b7e..ca896ebf7e1b 100644
--- a/drivers/clk/qcom/clk-branch.c
+++ b/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;
 	}
 }
 
diff --git a/drivers/clk/qcom/clk-branch.h b/drivers/clk/qcom/clk-branch.h
index 9bec563ab4ee..0cf800b9d08d 100644
--- a/drivers/clk/qcom/clk-branch.h
+++ b/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)
-- 
2.39.1