From: Michael Grzeschik <mgr@pengutronix.de>
To: linux-i2c@vger.kernel.org
Cc: kernel@pengutronix.de, michal.simek@xilinx.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] i2c: cadence: make bus recovery optional
Date: Mon, 14 Nov 2022 16:57:00 +0100 [thread overview]
Message-ID: <20221114155700.GA18924@pengutronix.de> (raw)
In-Reply-To: <20221023215121.221316-1-m.grzeschik@pengutronix.de>
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On Sun, Oct 23, 2022 at 11:51:21PM +0200, Michael Grzeschik wrote:
>There is no need for the i2c driver to have functional bus recovery to
>probe successfully. We patch this by only adding bus_recovery_info only
>if we get usable pinctrl data.
Gentle Ping!
>Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
>---
> drivers/i2c/busses/i2c-cadence.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
>diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c
>index fe0cd205502de9..cf212b8ffd56af 100644
>--- a/drivers/i2c/busses/i2c-cadence.c
>+++ b/drivers/i2c/busses/i2c-cadence.c
>@@ -1262,10 +1262,10 @@ static int cdns_i2c_probe(struct platform_device *pdev)
> }
>
> id->rinfo.pinctrl = devm_pinctrl_get(&pdev->dev);
>- if (IS_ERR(id->rinfo.pinctrl)) {
>+ if (!IS_ERR(id->rinfo.pinctrl))
>+ id->adap.bus_recovery_info = &id->rinfo;
>+ else
> dev_info(&pdev->dev, "can't get pinctrl, bus recovery not supported\n");
>- return PTR_ERR(id->rinfo.pinctrl);
>- }
>
> id->membase = devm_platform_get_and_ioremap_resource(pdev, 0, &r_mem);
> if (IS_ERR(id->membase))
>@@ -1283,7 +1283,6 @@ static int cdns_i2c_probe(struct platform_device *pdev)
> id->adap.retries = 3; /* Default retry value. */
> id->adap.algo_data = id;
> id->adap.dev.parent = &pdev->dev;
>- id->adap.bus_recovery_info = &id->rinfo;
> init_completion(&id->xfer_done);
> snprintf(id->adap.name, sizeof(id->adap.name),
> "Cadence I2C at %08lx", (unsigned long)r_mem->start);
>--
>2.30.2
>
>
>
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next prev parent reply other threads:[~2022-11-14 15:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-23 21:51 [PATCH] i2c: cadence: make bus recovery optional Michael Grzeschik
2022-11-14 15:57 ` Michael Grzeschik [this message]
2022-11-28 11:58 ` Michael Riesch
2022-11-28 13:07 ` Michael Grzeschik
2022-11-28 13:24 ` Michael Grzeschik
2022-12-01 22:54 ` Wolfram Sang
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