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From: Chen-Yu Tsai <wenst@chromium.org>
To: Stephen Boyd <sboyd@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>,
	Chun-Jie Chen <chun-jie.chen@mediatek.com>,
	Miles Chen <miles.chen@mediatek.com>,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 23/31] clk: mediatek: mux: Reverse check for existing clk to reduce nesting level
Date: Wed,  2 Feb 2022 21:48:26 +0800	[thread overview]
Message-ID: <20220202134834.690675-24-wenst@chromium.org> (raw)
In-Reply-To: <20220202134834.690675-1-wenst@chromium.org>

The clk registration code here currently does:

    if (IS_ERR_OR_NULL(clk_data->clks[mux->id])) {
            ... do clk registration ...
    }

This extra level of nesting wastes screen real estate.

Reduce the nesting level by reversing the conditional shown above.
Other than that, functionality is not changed.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
---
 drivers/clk/mediatek/clk-mux.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mux.c b/drivers/clk/mediatek/clk-mux.c
index 01af6a52711a..70aa42144632 100644
--- a/drivers/clk/mediatek/clk-mux.c
+++ b/drivers/clk/mediatek/clk-mux.c
@@ -208,16 +208,17 @@ int mtk_clk_register_muxes(const struct mtk_mux *muxes,
 	for (i = 0; i < num; i++) {
 		const struct mtk_mux *mux = &muxes[i];
 
-		if (IS_ERR_OR_NULL(clk_data->clks[mux->id])) {
-			clk = mtk_clk_register_mux(mux, regmap, lock);
+		if (!IS_ERR_OR_NULL(clk_data->clks[mux->id]))
+			continue;
 
-			if (IS_ERR(clk)) {
-				pr_err("Failed to register clk %s: %pe\n", mux->name, clk);
-				continue;
-			}
+		clk = mtk_clk_register_mux(mux, regmap, lock);
 
-			clk_data->clks[mux->id] = clk;
+		if (IS_ERR(clk)) {
+			pr_err("Failed to register clk %s: %pe\n", mux->name, clk);
+			continue;
 		}
+
+		clk_data->clks[mux->id] = clk;
 	}
 
 	return 0;
-- 
2.35.0.rc2.247.g8bbb082509-goog


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  parent reply	other threads:[~2022-02-02 14:09 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-02 13:48 [PATCH v2 00/31] clk: mediatek: Cleanups and Improvements - Part 1 Chen-Yu Tsai
2022-02-02 13:48 ` [PATCH v2 01/31] clk: mediatek: Use %pe to print errors Chen-Yu Tsai
2022-02-03  9:51   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 02/31] clk: mediatek: gate: Consolidate gate type clk related code Chen-Yu Tsai
2022-02-03  9:51   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 03/31] clk: mediatek: gate: Internalize clk implementation Chen-Yu Tsai
2022-02-03  9:51   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 04/31] clk: mediatek: gate: Implement unregister API Chen-Yu Tsai
2022-02-03  9:51   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 05/31] clk: mediatek: gate: Clean up included headers Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 06/31] clk: mediatek: cpumux: Implement unregister API Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 07/31] clk: mediatek: cpumux: Internalize struct mtk_clk_cpumux Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 08/31] clk: mediatek: cpumux: Clean up included headers Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 09/31] clk: mediatek: mux: Implement unregister API Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 10/31] clk: mediatek: mux: Internalize struct mtk_clk_mux Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 11/31] clk: mediatek: mux: Clean up included headers Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 12/31] clk: mediatek: pll: Split definitions into separate header file Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 13/31] clk: mediatek: pll: Implement unregister API Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-07  2:47   ` Miles Chen
2022-02-02 13:48 ` [PATCH v2 14/31] clk: mediatek: pll: Clean up included headers Chen-Yu Tsai
2022-02-03  9:50   ` AngeloGioacchino Del Regno
2022-02-07  2:49   ` Miles Chen
2022-02-02 13:48 ` [PATCH v2 15/31] clk: mediatek: Implement mtk_clk_unregister_fixed_clks() API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-08  3:50     ` Chen-Yu Tsai
2022-02-08 11:19       ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 16/31] clk: mediatek: Implement mtk_clk_unregister_factors() API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 17/31] clk: mediatek: Implement mtk_clk_unregister_divider_clks() API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 18/31] clk: mediatek: Implement mtk_clk_unregister_composites() API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-07  2:51   ` Miles Chen
2022-02-02 13:48 ` [PATCH v2 19/31] clk: mediatek: Add mtk_clk_simple_remove() Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 20/31] clk: mediatek: mtk: Clean up included headers Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 21/31] clk: mediatek: cpumux: Implement error handling in register API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 22/31] clk: mediatek: gate: " Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` Chen-Yu Tsai [this message]
2022-02-03  9:47   ` [PATCH v2 23/31] clk: mediatek: mux: Reverse check for existing clk to reduce nesting level AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 24/31] clk: mediatek: mux: Implement error handling in register API Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 25/31] clk: mediatek: pll: " Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 26/31] clk: mediatek: mtk: Implement error handling in register APIs Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 27/31] clk: mediatek: Unregister clks in mtk_clk_simple_probe() error path Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 28/31] clk: mediatek: mt8195: Hook up mtk_clk_simple_remove() Chen-Yu Tsai
2022-02-02 13:48 ` [PATCH v2 29/31] clk: mediatek: mt8195: Implement error handling in probe functions Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno
2022-02-02 13:48 ` [PATCH v2 30/31] clk: mediatek: mt8195: Implement remove functions Chen-Yu Tsai
2022-02-02 13:48 ` [PATCH v2 31/31] clk: mediatek: Warn if clk IDs are duplicated Chen-Yu Tsai
2022-02-03  9:47   ` AngeloGioacchino Del Regno

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