spi: mt65xx: Move clock parent setting to remove clock disable gotos

Reparenting sel_clk to parent_clk can be done before enabling any of
spi_clk and spi_hclk. Move the call to clk_set_parent() for sel_clk
earlier, and call disable_unprepare() upon spi_clk prepare_enable()
failure to remove all clock disablement related gotos.
This commit is in preparation of a later cleanup.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220407114428.167091-5-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 250a508..a2daba3 100644 (file)
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -1195,6 +1195,12 @@ static int mtk_spi_probe(struct platform_device *pdev)
                return ret;
        }
 
+       ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
+       if (ret < 0) {
+               dev_err(dev, "failed to clk_set_parent (%d)\n", ret);
+               return ret;
+       }
+
        ret = clk_prepare_enable(mdata->spi_hclk);
        if (ret < 0) {
                dev_err(dev, "failed to enable hclk (%d)\n", ret);
@@ -1204,13 +1210,8 @@ static int mtk_spi_probe(struct platform_device *pdev)
        ret = clk_prepare_enable(mdata->spi_clk);
        if (ret < 0) {
                dev_err(dev, "failed to enable spi_clk (%d)\n", ret);
-               goto err_disable_spi_hclk;
-       }
-
-       ret = clk_set_parent(mdata->sel_clk, mdata->parent_clk);
-       if (ret < 0) {
-               dev_err(dev, "failed to clk_set_parent (%d)\n", ret);
-               goto err_disable_spi_clk;
+               clk_disable_unprepare(mdata->spi_hclk);
+               return ret;
        }
 
        mdata->spi_clk_hz = clk_get_rate(mdata->spi_clk);
@@ -1261,10 +1262,6 @@ static int mtk_spi_probe(struct platform_device *pdev)
 
 err_disable_runtime_pm:
        pm_runtime_disable(dev);
-err_disable_spi_clk:
-       clk_disable_unprepare(mdata->spi_clk);
-err_disable_spi_hclk:
-       clk_disable_unprepare(mdata->spi_hclk);
 
        return ret;
 }