From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Mark Brown <broonie@kernel.org>
Cc: linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
kernel@pengutronix.de, linux-spi@vger.kernel.org
Subject: [PATCH v5 6/6] spi: davinci: Simplify using devm_clk_get_enabled()
Date: Thu, 22 Apr 2021 08:57:26 +0200 [thread overview]
Message-ID: <20210422065726.1646742-7-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20210422065726.1646742-1-u.kleine-koenig@pengutronix.de>
devm_clk_get_enabled() returns the clk already (prepared and) enabled
and the automatically called cleanup cares for disabling (and
unpreparing). So simplify .probe() and .remove() accordingly.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/spi/spi-davinci.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 7453a1dbbc06..63ee918ecdb0 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -936,14 +936,11 @@ static int davinci_spi_probe(struct platform_device *pdev)
dspi->bitbang.master = master;
- dspi->clk = devm_clk_get(&pdev->dev, NULL);
+ dspi->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(dspi->clk)) {
ret = -ENODEV;
goto free_master;
}
- ret = clk_prepare_enable(dspi->clk);
- if (ret)
- goto free_master;
master->use_gpio_descriptors = true;
master->dev.of_node = pdev->dev.of_node;
@@ -968,7 +965,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
ret = davinci_spi_request_dma(dspi);
if (ret == -EPROBE_DEFER) {
- goto free_clk;
+ goto free_master;
} else if (ret) {
dev_info(&pdev->dev, "DMA is not supported (%d)\n", ret);
dspi->dma_rx = NULL;
@@ -1012,8 +1009,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
dma_release_channel(dspi->dma_rx);
dma_release_channel(dspi->dma_tx);
}
-free_clk:
- clk_disable_unprepare(dspi->clk);
free_master:
spi_master_put(master);
err:
@@ -1039,8 +1034,6 @@ static int davinci_spi_remove(struct platform_device *pdev)
spi_bitbang_stop(&dspi->bitbang);
- clk_disable_unprepare(dspi->clk);
-
if (dspi->dma_rx) {
dma_release_channel(dspi->dma_rx);
dma_release_channel(dspi->dma_tx);
--
2.30.2
prev parent reply other threads:[~2021-04-22 6:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 6:57 [PATCH v5 0/6] clk: provide new devm helpers for prepared and enabled clocks Uwe Kleine-König
2021-04-22 6:57 ` [PATCH v5 1/6] clk: generalize devm_clk_get() a bit Uwe Kleine-König
2021-04-22 6:57 ` [PATCH v5 2/6] clk: Provide new devm_clk_helpers for prepared and enabled clocks Uwe Kleine-König
2021-04-22 6:57 ` [PATCH v5 3/6] pwm: atmel: Simplify using devm_clk_get_prepared() Uwe Kleine-König
2021-04-22 6:57 ` [PATCH v5 4/6] rtc: at91sma9: Simplify using devm_clk_get_enabled() Uwe Kleine-König
2021-04-22 8:01 ` Alexander Dahl
2021-04-22 15:39 ` Uwe Kleine-König
2021-04-22 6:57 ` [PATCH v5 5/6] i2c: imx: Simplify using devm_clk_get_enableded() Uwe Kleine-König
2021-04-22 16:35 ` Uwe Kleine-König
2021-04-22 6:57 ` Uwe Kleine-König [this message]
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