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From: Dmitry Osipenko <digetx@gmail.com>
To: "Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Laxman Dewangan" <ldewangan@nvidia.com>,
	"Wolfram Sang" <wsa@the-dreams.de>,
	"Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
	"Andy Shevchenko" <andy.shevchenko@gmail.com>
Cc: linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v5 06/36] i2c: tegra: Runtime PM always available on Tegra
Date: Sun,  6 Sep 2020 21:50:09 +0300	[thread overview]
Message-ID: <20200906185039.22700-7-digetx@gmail.com> (raw)
In-Reply-To: <20200906185039.22700-1-digetx@gmail.com>

The runtime PM is guaranteed to be always available on Tegra after commit
40b2bb1b132a ("ARM: tegra: enforce PM requirement"). Hence let's remove
all the RPM-availability checking and handling from the code.

Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/i2c/busses/i2c-tegra.c | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 4a9375fc71d8..c296095ace87 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1773,18 +1773,10 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 	if (!i2c_dev->is_vi)
 		pm_runtime_irq_safe(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
-	if (!pm_runtime_enabled(&pdev->dev)) {
-		ret = tegra_i2c_runtime_resume(&pdev->dev);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "runtime resume failed\n");
-			goto unprepare_div_clk;
-		}
-	} else {
-		ret = pm_runtime_get_sync(i2c_dev->dev);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "runtime resume failed\n");
-			goto disable_rpm;
-		}
+	ret = pm_runtime_get_sync(i2c_dev->dev);
+	if (ret < 0) {
+		dev_err(dev, "runtime resume failed\n");
+		goto disable_rpm;
 	}
 
 	if (i2c_dev->is_multimaster_mode) {
@@ -1843,16 +1835,10 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 		clk_disable(i2c_dev->div_clk);
 
 put_rpm:
-	if (pm_runtime_enabled(&pdev->dev))
-		pm_runtime_put_sync(&pdev->dev);
-	else
-		tegra_i2c_runtime_suspend(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 
 disable_rpm:
-	if (pm_runtime_enabled(&pdev->dev))
-		pm_runtime_disable(&pdev->dev);
-
-unprepare_div_clk:
+	pm_runtime_disable(&pdev->dev);
 	clk_unprepare(i2c_dev->div_clk);
 
 unprepare_slow_clk:
@@ -1874,8 +1860,6 @@ static int tegra_i2c_remove(struct platform_device *pdev)
 		clk_disable(i2c_dev->div_clk);
 
 	pm_runtime_disable(&pdev->dev);
-	if (!pm_runtime_status_suspended(&pdev->dev))
-		tegra_i2c_runtime_suspend(&pdev->dev);
 
 	clk_unprepare(i2c_dev->div_clk);
 	clk_unprepare(i2c_dev->slow_clk);
-- 
2.27.0


  parent reply	other threads:[~2020-09-06 18:57 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-06 18:50 [PATCH v5 00/36] Improvements for Tegra I2C driver Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 01/36] i2c: tegra: Make tegra_i2c_flush_fifos() usable in atomic transfer Dmitry Osipenko
2020-09-07  7:56   ` Andy Shevchenko
2020-09-07 14:31     ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 02/36] i2c: tegra: Handle potential error of tegra_i2c_flush_fifos() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 03/36] i2c: tegra: Mask interrupt in tegra_i2c_issue_bus_clear() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 04/36] i2c: tegra: Initialization div-clk rate unconditionally Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 05/36] i2c: tegra: Remove i2c_dev.clk_divisor_non_hs_mode member Dmitry Osipenko
2020-09-06 18:50 ` Dmitry Osipenko [this message]
2020-09-07  8:10   ` [PATCH v5 06/36] i2c: tegra: Runtime PM always available on Tegra Andy Shevchenko
2020-09-07 14:31     ` Dmitry Osipenko
2020-09-07 15:05       ` Andy Shevchenko
2020-09-07 15:25         ` Dmitry Osipenko
2020-09-07 15:34           ` Andy Shevchenko
2020-09-07 16:06             ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 07/36] i2c: tegra: Remove error message used for devm_request_irq() failure Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 08/36] i2c: tegra: Use reset_control_reset() Dmitry Osipenko
2020-09-07  8:13   ` Andy Shevchenko
2020-09-07 14:33     ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 09/36] i2c: tegra: Use devm_platform_get_and_ioremap_resource() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 10/36] i2c: tegra: Use platform_get_irq() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 11/36] i2c: tegra: Use clk-bulk helpers Dmitry Osipenko
2020-09-07  8:21   ` Andy Shevchenko
2020-09-07 14:33     ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 12/36] i2c: tegra: Move out all device-tree parsing into tegra_i2c_parse_dt() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 13/36] i2c: tegra: Clean up probe function Dmitry Osipenko
2020-09-07  8:20   ` Andy Shevchenko
2020-09-07 14:33     ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 14/36] i2c: tegra: Remove likely/unlikely from the code Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 15/36] i2c: tegra: Remove outdated barrier() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 16/36] i2c: tegra: Remove "dma" variable from tegra_i2c_xfer_msg() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 17/36] i2c: tegra: Remove redundant check in tegra_i2c_issue_bus_clear() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 18/36] i2c: tegra: Don't fall back to PIO mode if DMA configuration fails Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 19/36] i2c: tegra: Improve formatting of function variables Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 20/36] i2c: tegra: Improve coding style of tegra_i2c_wait_for_config_load() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 21/36] i2c: tegra: Rename wait/poll functions Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 22/36] i2c: tegra: Rename variable in tegra_i2c_issue_bus_clear() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 23/36] i2c: tegra: Factor out error recovery from tegra_i2c_xfer_msg() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 24/36] i2c: tegra: Factor out packet header setup " Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 25/36] i2c: tegra: Factor out register polling into separate function Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 26/36] i2c: tegra: Factor out hardware initialization " Dmitry Osipenko
2020-09-07  8:25   ` Andy Shevchenko
2020-09-06 18:50 ` [PATCH v5 27/36] i2c: tegra: Reorder location of functions in the code Dmitry Osipenko
2020-09-07  8:27   ` Andy Shevchenko
2020-09-07 14:36     ` Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 28/36] i2c: tegra: Check errors for both positive and negative values Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 29/36] i2c: tegra: Consolidate error handling in tegra_i2c_xfer_msg() Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 30/36] i2c: tegra: Clean up printk messages Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 31/36] i2c: tegra: Clean up whitespaces, newlines and indentation Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 32/36] i2c: tegra: Clean up and improve comments Dmitry Osipenko
2020-09-07  8:29   ` Andy Shevchenko
2020-09-06 18:50 ` [PATCH v5 33/36] i2c: tegra: Clean up variable types Dmitry Osipenko
2020-09-07  8:30   ` Andy Shevchenko
2020-09-06 18:50 ` [PATCH v5 34/36] i2c: tegra: Improve driver module description Dmitry Osipenko
2020-09-06 18:50 ` [PATCH v5 35/36] i2c: tegra: Rename couple "ret" variables to "err" Dmitry Osipenko
2020-09-07  8:31   ` Andy Shevchenko
2020-09-06 18:50 ` [PATCH v5 36/36] i2c: tegra: Improve tegra_i2c_dev structure Dmitry Osipenko
2020-09-07  8:32   ` Andy Shevchenko

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