linux-kernel - [PATCH] memory: mtk-smi: Use ARRAY_SIZE to define MTK_SMI_CLK_NR

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Date:   Fri, 15 Oct 2021 17:15:57 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     krzysztof.kozlowski@...onical.com
Cc:     yong.wu@...iatek.com, matthias.bgg@...il.com,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH] memory: mtk-smi: Use ARRAY_SIZE to define MTK_SMI_CLK_NR_MAX

This definition is tied to the number of SMI common clocks (the array
mtk_smi_common_clks): improve the definition by using the ARRAY_SIZE
macro instead. That will also reduce room for mistakes when updating
the aforementioned array in the future.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/memory/mtk-smi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index b883dcc0bbfa..6331422141e8 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -94,8 +94,6 @@ enum mtk_smi_type {
 	MTK_SMI_GEN2_SUB_COMM,	/* gen2 smi sub common */
 };
 
-#define MTK_SMI_CLK_NR_MAX			4
-
 /* larbs: Require apb/smi clocks while gals is optional. */
 static const char * const mtk_smi_larb_clks[] = {"apb", "smi", "gals"};
 #define MTK_SMI_LARB_REQ_CLK_NR		2
@@ -106,6 +104,7 @@ static const char * const mtk_smi_larb_clks[] = {"apb", "smi", "gals"};
  * sub common: Require apb/smi/gals0 clocks in has_gals case. Otherwise, only apb/smi are required.
  */
 static const char * const mtk_smi_common_clks[] = {"apb", "smi", "gals0", "gals1"};
+#define MTK_SMI_CLK_NR_MAX		ARRAY_SIZE(mtk_smi_common_clks)
 #define MTK_SMI_COM_REQ_CLK_NR		2
 #define MTK_SMI_COM_GALS_REQ_CLK_NR	MTK_SMI_CLK_NR_MAX
 #define MTK_SMI_SUB_COM_GALS_REQ_CLK_NR 3
-- 
2.33.0