From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Frank Li" <Frank.Li@nxp.com>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
linux-omap@vger.kernel.org, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, imx@lists.linux.dev,
linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org,
linux-tegra@vger.kernel.org,
"Vignesh Raghavendra" <vigneshr@ti.com>,
"Siddharth Vadapalli" <s-vadapalli@ti.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Richard Zhu" <hongxing.zhu@nxp.com>,
"Lucas Stach" <l.stach@pengutronix.de>,
"Shawn Guo" <shawnguo@kernel.org>,
"Sascha Hauer" <s.hauer@pengutronix.de>,
"Pengutronix Kernel Team" <kernel@pengutronix.de>,
"Fabio Estevam" <festevam@gmail.com>,
"Yue Wang" <yue.wang@Amlogic.com>,
"Neil Armstrong" <neil.armstrong@linaro.org>,
"Kevin Hilman" <khilman@baylibre.com>,
"Jerome Brunet" <jbrunet@baylibre.com>,
"Martin Blumenstingl" <martin.blumenstingl@googlemail.com>,
"Xiaowei Song" <songxiaowei@hisilicon.com>,
"Binghui Wang" <wangbinghui@hisilicon.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Jonathan Hunter" <jonathanh@nvidia.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
"Pali Rohár" <pali@kernel.org>
Subject: Re: [PATCH v2 3/4] PCI: imx6: Convert to agnostic GPIO API
Date: Sat, 27 Apr 2024 12:13:29 +0530 [thread overview]
Message-ID: <20240427064329.GB1981@thinkpad> (raw)
In-Reply-To: <20240423172208.2723892-4-andriy.shevchenko@linux.intel.com>
On Tue, Apr 23, 2024 at 08:19:06PM +0300, Andy Shevchenko wrote:
> The of_gpio.h is going to be removed. In preparation of that convert
> the driver to the agnostic API.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
- Mani
> ---
> drivers/pci/controller/dwc/pci-imx6.c | 37 ++++++++++-----------------
> 1 file changed, 14 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 917c69edee1d..d620f1e1a43c 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -11,14 +11,13 @@
> #include <linux/bitfield.h>
> #include <linux/clk.h>
> #include <linux/delay.h>
> -#include <linux/gpio.h>
> +#include <linux/gpio/consumer.h>
> #include <linux/kernel.h>
> #include <linux/mfd/syscon.h>
> #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
> #include <linux/mfd/syscon/imx7-iomuxc-gpr.h>
> #include <linux/module.h>
> #include <linux/of.h>
> -#include <linux/of_gpio.h>
> #include <linux/of_address.h>
> #include <linux/pci.h>
> #include <linux/platform_device.h>
> @@ -107,7 +106,7 @@ struct imx6_pcie_drvdata {
>
> struct imx6_pcie {
> struct dw_pcie *pci;
> - int reset_gpio;
> + struct gpio_desc *reset_gpiod;
> bool gpio_active_high;
> bool link_is_up;
> struct clk_bulk_data clks[IMX6_PCIE_MAX_CLKS];
> @@ -721,9 +720,8 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie)
> }
>
> /* Some boards don't have PCIe reset GPIO. */
> - if (gpio_is_valid(imx6_pcie->reset_gpio))
> - gpio_set_value_cansleep(imx6_pcie->reset_gpio,
> - imx6_pcie->gpio_active_high);
> + gpiod_set_raw_value_cansleep(imx6_pcie->reset_gpiod,
> + imx6_pcie->gpio_active_high);
> }
>
> static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)
> @@ -771,10 +769,10 @@ static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)
> }
>
> /* Some boards don't have PCIe reset GPIO. */
> - if (gpio_is_valid(imx6_pcie->reset_gpio)) {
> + if (imx6_pcie->reset_gpiod) {
> msleep(100);
> - gpio_set_value_cansleep(imx6_pcie->reset_gpio,
> - !imx6_pcie->gpio_active_high);
> + gpiod_set_raw_value_cansleep(imx6_pcie->reset_gpiod,
> + !imx6_pcie->gpio_active_high);
> /* Wait for 100ms after PERST# deassertion (PCIe r5.0, 6.6.1) */
> msleep(100);
> }
> @@ -1285,22 +1283,15 @@ static int imx6_pcie_probe(struct platform_device *pdev)
> return PTR_ERR(pci->dbi_base);
>
> /* Fetch GPIOs */
> - imx6_pcie->reset_gpio = of_get_named_gpio(node, "reset-gpio", 0);
> imx6_pcie->gpio_active_high = of_property_read_bool(node,
> "reset-gpio-active-high");
> - if (gpio_is_valid(imx6_pcie->reset_gpio)) {
> - ret = devm_gpio_request_one(dev, imx6_pcie->reset_gpio,
> - imx6_pcie->gpio_active_high ?
> - GPIOF_OUT_INIT_HIGH :
> - GPIOF_OUT_INIT_LOW,
> - "PCIe reset");
> - if (ret) {
> - dev_err(dev, "unable to get reset gpio\n");
> - return ret;
> - }
> - } else if (imx6_pcie->reset_gpio == -EPROBE_DEFER) {
> - return imx6_pcie->reset_gpio;
> - }
> + imx6_pcie->reset_gpiod =
> + devm_gpiod_get_optional(dev, "reset",
> + imx6_pcie->gpio_active_high ? GPIOD_OUT_HIGH : GPIOD_OUT_LOW);
> + if (IS_ERR(imx6_pcie->reset_gpiod))
> + return dev_err_probe(dev, PTR_ERR(imx6_pcie->reset_gpiod),
> + "unable to get reset gpio\n");
> + gpiod_set_consumer_name(imx6_pcie->reset_gpiod, "PCIe reset");
>
> if (imx6_pcie->drvdata->clks_cnt >= IMX6_PCIE_MAX_CLKS)
> return dev_err_probe(dev, -ENOMEM, "clks_cnt is too big\n");
> --
> 2.43.0.rc1.1336.g36b5255a03ac
>
>
--
மணிவண்ணன் சதாசிவம்
next prev parent reply other threads:[~2024-04-27 6:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-23 17:19 [PATCH v2 0/4] PCI: controller: Move to agnostic GPIO API Andy Shevchenko
2024-04-23 17:19 ` [PATCH v2 1/4] PCI: aardvark: Remove unused of_gpio.h Andy Shevchenko
2024-04-27 6:38 ` Manivannan Sadhasivam
2024-04-23 17:19 ` [PATCH v2 2/4] PCI: dwc: " Andy Shevchenko
2024-04-23 22:51 ` kernel test robot
2024-04-24 14:14 ` Andy Shevchenko
2024-04-24 14:29 ` Andy Shevchenko
2024-04-23 23:42 ` kernel test robot
2024-04-23 17:19 ` [PATCH v2 3/4] PCI: imx6: Convert to agnostic GPIO API Andy Shevchenko
2024-04-23 19:56 ` Frank Li
2024-04-23 20:03 ` Andy Shevchenko
2024-04-23 20:16 ` Frank Li
2024-04-23 20:22 ` Fabio Estevam
2024-04-23 20:23 ` Frank Li
2024-04-24 14:15 ` Andy Shevchenko
2024-04-27 6:43 ` Manivannan Sadhasivam [this message]
2024-04-23 17:19 ` [PATCH v2 4/4] PCI: kirin: " Andy Shevchenko
2024-04-27 7:23 ` Manivannan Sadhasivam
2024-04-29 8:47 ` Andy Shevchenko
2024-04-26 14:26 ` [PATCH v2 0/4] PCI: controller: Move " Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240427064329.GB1981@thinkpad \
--to=manivannan.sadhasivam@linaro.org \
--cc=Frank.Li@nxp.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=bhelgaas@google.com \
--cc=festevam@gmail.com \
--cc=hongxing.zhu@nxp.com \
--cc=imx@lists.linux.dev \
--cc=jbrunet@baylibre.com \
--cc=jonathanh@nvidia.com \
--cc=kernel@pengutronix.de \
--cc=khilman@baylibre.com \
--cc=kw@linux.com \
--cc=kwilczynski@kernel.org \
--cc=l.stach@pengutronix.de \
--cc=linux-amlogic@lists.infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=martin.blumenstingl@googlemail.com \
--cc=neil.armstrong@linaro.org \
--cc=pali@kernel.org \
--cc=robh@kernel.org \
--cc=s-vadapalli@ti.com \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
--cc=songxiaowei@hisilicon.com \
--cc=thierry.reding@gmail.com \
--cc=thomas.petazzoni@bootlin.com \
--cc=u.kleine-koenig@pengutronix.de \
--cc=vigneshr@ti.com \
--cc=wangbinghui@hisilicon.com \
--cc=yue.wang@Amlogic.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).