linux-kernel - RE: [PATCH v8 0/8] PCI: imx6: refine codes and add compliance tests mode support

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Message-ID: <AS8PR04MB8676681E7DD647788F070FB48C0F9@AS8PR04MB8676.eurprd04.prod.outlook.com>
Date:   Mon, 14 Mar 2022 05:26:06 +0000
From:   Hongxing Zhu <hongxing.zhu@....com>
To:     Hongxing Zhu <hongxing.zhu@....com>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "jingoohan1@...il.com" <jingoohan1@...il.com>,
        "festevam@...il.com" <festevam@...il.com>,
        "francesco.dolcini@...adex.com" <francesco.dolcini@...adex.com>
CC:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v8 0/8] PCI: imx6: refine codes and add compliance tests
 mode support 

Hi Lucas:
Since this v8 series patches are pending for a while, and no review comments anymore.
Can you help to take look at the other patches of this set?

Best Regards
Richard Zhu

> -----Original Message-----
> From: Richard Zhu <hongxing.zhu@....com>
> Sent: 2022年2月25日 11:44
> To: l.stach@...gutronix.de; bhelgaas@...gle.com; broonie@...nel.org;
> lorenzo.pieralisi@....com; jingoohan1@...il.com; festevam@...il.com;
> francesco.dolcini@...adex.com
> Cc: Hongxing Zhu <hongxing.zhu@....com>; linux-pci@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> kernel@...gutronix.de; dl-linux-imx <linux-imx@....com>
> Subject: [PATCH v8 0/8] PCI: imx6: refine codes and add compliance tests
> mode support
> 
> This series patches refine pci-imx6 driver and do the following changes.
> - Encapsulate the clock enable into one standalone function
> - Add the error propagation from host_init
> - Disable the regulators and clocks when link never comes up
> - Add the compliance tests mode support
> 
> Main changes from v7 to v8:
> Regarding Bjorn's review comments.
> - Align the format of the dev_info message and refine commit log of
>   #6/7/8 patches.
> - Rename the err_reset_phy label, since there is no PHY reset in the out.
> 
> Main changes from v6 to v7:
> - Keep the regulator usage counter balance in the #5 patch of v6 series.
> 
> Main changes from v5 to v6:
> - Refer to the following discussion with Fabio, fix the dump by his patch.
> 
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatchw
> ork.kernel.org%2Fproject%2Flinux-pci%2Fpatch%2F1641368602-20401-6-git-s
> end-email-hongxing.zhu%40nxp.com%2F&amp;data=04%7C01%7Chongxing.z
> hu%40nxp.com%7C100772798bed44ec362f08d9f8124d9c%7C686ea1d3bc2b
> 4c6fa92cd99c5c301635%7C0%7C0%7C637813579753331370%7CUnknown%
> 7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwi
> LCJXVCI6Mn0%3D%7C3000&amp;sdata=m4XhLgO0e7H1MzS1KPskWhK1Lc1g
> uUqzYpudrL03pCQ%3D&amp;reserved=0
>   Refine and rebase this patch-set after Fabio' dump fix patch is merged.
> - Add one new #4 patch to disable i.MX6QDL REF clock too when disable clocks
> - Split the regulator refine codes into one standalone patch #5 in this version.
> 
> Main changes from v4 to v5:
> - Since i.MX8MM PCIe support had been merged. Based on Lorenzo's git repos,
>   resend the patch-set after rebase.
> 
> Main changes from v3 to v4:
> - Regarding Mark's comments, delete the regulator_is_enabled() check.
> - Squash #3 and #6 of v3 patch into #5 patch of v4 set.
> 
> Main changes from v2 to v3:
> - Add "Reviewed-by: Lucas Stach <l.stach@...gutronix.de>" tag into
>   first two patches.
> - Add a Fixes tag into #3 patch.
> - Split the #4 of v2 to two patches, one is clock disable codes move,
>   the other one is the acutal clock unbalance fix.
> - Add a new host_exit() callback into dw_pcie_host_ops, then it could be
>   invoked to handle the unbalance issue in the error handling after
>   host_init() function when link is down.
> - Add a new host_exit() callback for i.MX PCIe driver to handle this case
>   in the error handling after host_init.
> 
> Main changes from v1 to v2:
> Regarding Lucas' comments.
>   - Move the placement of the new imx6_pcie_clk_enable() to avoid the
>     forward declarition.
>   - Seperate the second patch of v1 patch-set to three patches.
>   - Use the module_param to replace the kernel command line.
> Regarding Bjorn's comments:
>   - Use the cover-letter for a multi-patch series.
>   - Correct the subject line, and refine the commit logs. For example,
>     remove the timestamp of the logs.
> 
> drivers/pci/controller/dwc/pci-imx6.c             | 223
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
> -------------------------------
> drivers/pci/controller/dwc/pcie-designware-host.c |   5 ++-
> drivers/pci/controller/dwc/pcie-designware.h      |   1 +
> 3 files changed, 150 insertions(+), 79 deletions(-)
> 
> [PATCH v8 1/8] PCI: imx6: Encapsulate the clock enable into one [PATCH v8 2/8]
> PCI: imx6: Add the error propagation from host_init [PATCH v8 3/8] PCI: imx6:
> Move imx6_pcie_clk_disable() earlier [PATCH v8 4/8] PCI: imx6: Disable
> iMX6QDL PCIe REF clock when disable [PATCH v8 5/8] PCI: imx6: Refine the
> regulator usage [PATCH v8 6/8] PCI: dwc: Add dw_pcie_host_ops.host_exit()
> callback [PATCH v8 7/8] PCI: imx6: Disable clocks and regulators after link is
> [PATCH v8 8/8] PCI: imx6: Add compliance tests mode support