From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: "Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
"Jingoo Han" <jingoohan1@gmail.com>,
"Gustavo Pimentel" <gustavo.pimentel@synopsys.com>,
"Rahul Tanwar" <rtanwar@maxlinear.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Serge Semin" <fancer.lancer@gmail.com>,
"Alexey Malahov" <Alexey.Malahov@baikalelectronics.ru>,
"Pavel Parkhomenko" <Pavel.Parkhomenko@baikalelectronics.ru>,
"Frank Li" <Frank.Li@nxp.com>, "Rob Herring" <robh+dt@kernel.org>,
linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, eswara.kota@linux.intel.com
Subject: Re: [PATCH RESEND v4 06/15] PCI: intel-gw: Drop manual DW PCIe controller version setup
Date: Mon, 1 Aug 2022 18:58:17 +0530 [thread overview]
Message-ID: <20220801132817.GF93763@thinkpad> (raw)
In-Reply-To: <20220624143947.8991-7-Sergey.Semin@baikalelectronics.ru>
On Fri, Jun 24, 2022 at 05:39:38PM +0300, Serge Semin wrote:
> Since the DW PCIe common code now supports the IP-core version
> auto-detection there is no point manually setting the version up for the
> controllers newer than v4.70a. In particular Intel GW PCIe platform code
> can be set free from the manual version setup, which as a positive side
> effect causes the private device data removal too.
>
> Suggested-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
I don't have a hardware to test. But going by the DWC spec, this looks good to
me.
CCed the author of this driver, "Dilip Kota" in case he can confirm.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Thanks,
Mani
>
> ---
>
> Folks, I don't have Intel GW PCIe hw instance to test it out. Could you
> please make sure this patch doesn't brake anything?
>
> Changelog v3:
> - This is a new patch create as a result of the discussion:
> https://lore.kernel.org/linux-pci/20220503214638.1895-6-Sergey.Semin@baikalelectronics.ru/
> ---
> drivers/pci/controller/dwc/pcie-intel-gw.c | 16 +---------------
> 1 file changed, 1 insertion(+), 15 deletions(-)
>
> diff --git a/drivers/pci/controller/dwc/pcie-intel-gw.c b/drivers/pci/controller/dwc/pcie-intel-gw.c
> index 371b5aa189d1..a44f685ec94d 100644
> --- a/drivers/pci/controller/dwc/pcie-intel-gw.c
> +++ b/drivers/pci/controller/dwc/pcie-intel-gw.c
> @@ -58,10 +58,6 @@
> #define BUS_IATU_OFFSET SZ_256M
> #define RESET_INTERVAL_MS 100
>
> -struct intel_pcie_soc {
> - u32 pcie_ver;
> -};
> -
> struct intel_pcie {
> struct dw_pcie pci;
> void __iomem *app_base;
> @@ -394,13 +390,8 @@ static const struct dw_pcie_host_ops intel_pcie_dw_ops = {
> .host_init = intel_pcie_rc_init,
> };
>
> -static const struct intel_pcie_soc pcie_data = {
> - .pcie_ver = DW_PCIE_VER_520A,
> -};
> -
> static int intel_pcie_probe(struct platform_device *pdev)
> {
> - const struct intel_pcie_soc *data;
> struct device *dev = &pdev->dev;
> struct intel_pcie *pcie;
> struct dw_pcie_rp *pp;
> @@ -424,12 +415,7 @@ static int intel_pcie_probe(struct platform_device *pdev)
> if (ret)
> return ret;
>
> - data = device_get_match_data(dev);
> - if (!data)
> - return -ENODEV;
> -
> pci->ops = &intel_pcie_ops;
> - pci->version = data->pcie_ver;
> pp->ops = &intel_pcie_dw_ops;
>
> ret = dw_pcie_host_init(pp);
> @@ -447,7 +433,7 @@ static const struct dev_pm_ops intel_pcie_pm_ops = {
> };
>
> static const struct of_device_id of_intel_pcie_match[] = {
> - { .compatible = "intel,lgm-pcie", .data = &pcie_data },
> + { .compatible = "intel,lgm-pcie" },
> {}
> };
>
> --
> 2.35.1
>
--
மணிவண்ணன் சதாசிவம்
next prev parent reply other threads:[~2022-08-01 13:28 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-24 14:39 [PATCH RESEND v4 00/15] PCI: dwc: Add hw version and dma-ranges support Serge Semin
2022-06-24 14:39 ` [PATCH RESEND v4 01/15] PCI: dwc: Add more verbose link-up message Serge Semin
2022-08-01 12:59 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 02/15] PCI: dwc: Detect iATU settings after getting "addr_space" resource Serge Semin
2022-07-28 14:38 ` Bjorn Helgaas
2022-08-01 13:01 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 03/15] PCI: dwc: Convert to using native IP-core versions representation Serge Semin
2022-07-28 15:24 ` Bjorn Helgaas
2022-07-28 15:31 ` Ben Dooks
2022-07-28 16:34 ` Bjorn Helgaas
2022-07-28 18:53 ` Serge Semin
2022-08-01 13:07 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 04/15] PCI: dwc: Add IP-core version detection procedure Serge Semin
2022-08-01 13:12 ` Manivannan Sadhasivam
2022-08-01 20:06 ` Bjorn Helgaas
2022-08-02 7:31 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 05/15] PCI: dwc: Introduce Synopsys IP-core versions/types interface Serge Semin
2022-08-01 13:21 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 06/15] PCI: intel-gw: Drop manual DW PCIe controller version setup Serge Semin
2022-08-01 13:28 ` Manivannan Sadhasivam [this message]
2022-06-24 14:39 ` [PATCH RESEND v4 07/15] PCI: tegra194: " Serge Semin
2022-06-27 7:59 ` Vidya Sagar
2022-06-27 22:31 ` Serge Semin
2022-08-01 13:29 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 08/15] PCI: dwc: Add host de-initialization callback Serge Semin
2022-08-01 13:33 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 09/15] PCI: dwc: Drop inbound iATU types enumeration - dw_pcie_as_type Serge Semin
2022-08-01 13:36 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 10/15] PCI: dwc: Drop iATU regions enumeration - dw_pcie_region_type Serge Semin
2022-08-01 13:37 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 11/15] PCI: dwc: Simplify in/outbound iATU setup methods Serge Semin
2022-08-01 13:50 ` Manivannan Sadhasivam
2022-08-01 20:11 ` Bjorn Helgaas
2022-06-24 14:39 ` [PATCH RESEND v4 12/15] PCI: dwc: Add iATU regions size detection procedure Serge Semin
2022-08-01 13:52 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 13/15] PCI: dwc: Verify in/out regions against iATU constraints Serge Semin
2022-08-01 13:53 ` Manivannan Sadhasivam
2022-06-24 14:39 ` [PATCH RESEND v4 14/15] PCI: dwc: Check iATU in/outbound ranges setup methods status Serge Semin
2022-08-01 13:54 ` Manivannan Sadhasivam
2022-08-01 20:17 ` Bjorn Helgaas
2022-06-24 14:39 ` [PATCH RESEND v4 15/15] PCI: dwc: Introduce dma-ranges property support for RC-host Serge Semin
2022-07-28 22:11 ` Bjorn Helgaas
2022-07-29 4:52 ` Serge Semin
2022-07-29 11:33 ` Bjorn Helgaas
2022-07-29 14:38 ` Serge Semin
2022-08-01 14:00 ` Manivannan Sadhasivam
2022-08-09 20:07 ` Serge Semin
2022-07-11 18:48 ` [PATCH RESEND v4 00/15] PCI: dwc: Add hw version and dma-ranges support Serge Semin
2022-07-27 22:49 ` Bjorn Helgaas
2022-07-28 12:21 ` Serge Semin
2022-07-29 2:36 ` Bjorn Helgaas
2022-09-28 8:10 ` Lorenzo Pieralisi
2022-09-28 10:53 ` Serge Semin
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=20220801132817.GF93763@thinkpad \
--to=manivannan.sadhasivam@linaro.org \
--cc=Alexey.Malahov@baikalelectronics.ru \
--cc=Frank.Li@nxp.com \
--cc=Pavel.Parkhomenko@baikalelectronics.ru \
--cc=Sergey.Semin@baikalelectronics.ru \
--cc=bhelgaas@google.com \
--cc=devicetree@vger.kernel.org \
--cc=eswara.kota@linux.intel.com \
--cc=fancer.lancer@gmail.com \
--cc=gustavo.pimentel@synopsys.com \
--cc=jingoohan1@gmail.com \
--cc=kw@linux.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=lpieralisi@kernel.org \
--cc=robh+dt@kernel.org \
--cc=robh@kernel.org \
--cc=rtanwar@maxlinear.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).