From: Hannes Reinecke <hare@suse.de>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>,
Damien Le Moal <damien.lemoal@opensource.wdc.com>,
Hans de Goede <hdegoede@redhat.com>, Jens Axboe <axboe@kernel.dk>,
Matthias Brugger <matthias.bgg@gmail.com>,
Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Serge Semin <fancer.lancer@gmail.com>,
Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
Rob Herring <robh+dt@kernel.org>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v3 10/23] ata: libahci_platform: Parse ports-implemented property in resources getter
Date: Thu, 12 May 2022 08:48:24 +0200 [thread overview]
Message-ID: <1e349868-b302-1473-188a-1a6f2bb88cd5@suse.de> (raw)
In-Reply-To: <20220511231810.4928-11-Sergey.Semin@baikalelectronics.ru>
On 5/12/22 01:17, Serge Semin wrote:
> The ports-implemented property is mainly used on the OF-based platforms
> with no ports mapping initialized by a bootloader/BIOS firmware. Seeing
> the same of_property_read_u32()-based pattern has already been implemented
> in the generic AHCI LLDD (glue) driver and in the Mediatek, St AHCI
> drivers let's move the property read procedure to the generic
> ahci_platform_get_resources() method. Thus we'll have the forced ports
> mapping feature supported for each OF-based platform which requires that,
> and stop re-implementing the same pattern in there a bit simplifying the
> code.
>
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> ---
> drivers/ata/ahci_mtk.c | 2 --
> drivers/ata/ahci_platform.c | 3 ---
> drivers/ata/ahci_st.c | 3 ---
> drivers/ata/libahci_platform.c | 3 +++
> 4 files changed, 3 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/ata/ahci_mtk.c b/drivers/ata/ahci_mtk.c
> index 1f6c85fde983..c056378e3e72 100644
> --- a/drivers/ata/ahci_mtk.c
> +++ b/drivers/ata/ahci_mtk.c
> @@ -118,8 +118,6 @@ static int mtk_ahci_parse_property(struct ahci_host_priv *hpriv,
> SYS_CFG_SATA_EN);
> }
>
> - of_property_read_u32(np, "ports-implemented", &hpriv->force_port_map);
> -
> return 0;
> }
>
> diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
> index 28a8de5b48b9..9b56490ecbc3 100644
> --- a/drivers/ata/ahci_platform.c
> +++ b/drivers/ata/ahci_platform.c
> @@ -56,9 +56,6 @@ static int ahci_probe(struct platform_device *pdev)
> if (rc)
> return rc;
>
> - of_property_read_u32(dev->of_node,
> - "ports-implemented", &hpriv->force_port_map);
> -
> if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
> hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
>
> diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c
> index 7526653c843b..068621099c00 100644
> --- a/drivers/ata/ahci_st.c
> +++ b/drivers/ata/ahci_st.c
> @@ -168,9 +168,6 @@ static int st_ahci_probe(struct platform_device *pdev)
>
> st_ahci_configure_oob(hpriv->mmio);
>
> - of_property_read_u32(dev->of_node,
> - "ports-implemented", &hpriv->force_port_map);
> -
> err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info,
> &ahci_platform_sht);
> if (err) {
> diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
> index 4e54e19f07b2..f7f9cac10cb1 100644
> --- a/drivers/ata/libahci_platform.c
> +++ b/drivers/ata/libahci_platform.c
> @@ -512,6 +512,9 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
> goto err_out;
> }
>
> + of_property_read_u32(dev->of_node,
> + "ports-implemented", &hpriv->force_port_map);
> +
> if (child_nodes) {
> for_each_child_of_node(dev->of_node, child) {
> u32 port;
What happens on the other platforms?
Won't they register an error if that property isn't implemented?
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Felix Imendörffer
next prev parent reply other threads:[~2022-05-12 6:48 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 23:17 [PATCH v3 00/23] ata: ahci: Add DWC/Baikal-T1 AHCI SATA support Serge Semin
2022-05-11 23:17 ` [PATCH v3 01/23] dt-bindings: ata: ahci-platform: Drop dma-coherent property declaration Serge Semin
2022-05-12 6:14 ` Hannes Reinecke
2022-05-17 18:58 ` Rob Herring
2022-05-21 9:22 ` Serge Semin
2022-05-24 14:57 ` Rob Herring
2022-05-25 10:01 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 02/23] dt-bindings: ata: ahci-platform: Detach common AHCI bindings Serge Semin
2022-05-12 6:19 ` Hannes Reinecke
2022-05-12 11:51 ` Serge Semin
2022-05-17 19:10 ` Rob Herring
2022-05-22 15:02 ` Serge Semin
2022-05-24 15:19 ` Rob Herring
2022-05-27 10:10 ` Serge Semin
2022-06-01 0:51 ` Rob Herring
2022-05-11 23:17 ` [PATCH v3 03/23] dt-bindings: ata: ahci-platform: Clarify common AHCI props constraints Serge Semin
2022-05-12 6:21 ` Hannes Reinecke
2022-05-12 12:01 ` Serge Semin
2022-05-12 8:11 ` Sergei Shtylyov
2022-05-12 12:04 ` Serge Semin
2022-05-17 19:14 ` Rob Herring
2022-05-22 15:08 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 04/23] dt-bindings: ata: sata: Extend number of SATA ports Serge Semin
2022-05-12 6:23 ` Hannes Reinecke
2022-05-17 19:15 ` Rob Herring
2022-05-11 23:17 ` [PATCH v3 05/23] ata: libahci_platform: Explicitly set rc on devres_alloc failure Serge Semin
2022-05-12 6:27 ` Hannes Reinecke
2022-05-12 10:32 ` Damien Le Moal
2022-05-12 12:31 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 06/23] ata: libahci_platform: Convert to using platform devm-ioremap methods Serge Semin
2022-05-12 6:31 ` Hannes Reinecke
2022-05-11 23:17 ` [PATCH v3 07/23] ata: libahci_platform: Convert to using devm bulk clocks API Serge Semin
2022-05-12 6:31 ` Hannes Reinecke
2022-05-12 18:32 ` kernel test robot
2022-05-11 23:17 ` [PATCH v3 08/23] ata: libahci_platform: Add function returning a clock-handle by id Serge Semin
2022-05-12 6:32 ` Hannes Reinecke
2022-05-12 14:26 ` Serge Semin
2022-05-13 9:32 ` Damien Le Moal
2022-05-13 13:31 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 09/23] ata: libahci_platform: Sanity check the DT child nodes number Serge Semin
2022-05-12 6:34 ` Hannes Reinecke
2022-05-12 8:24 ` Sergei Shtylyov
2022-05-12 14:40 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 10/23] ata: libahci_platform: Parse ports-implemented property in resources getter Serge Semin
2022-05-12 6:48 ` Hannes Reinecke [this message]
2022-05-12 14:31 ` Serge Semin
2022-05-11 23:17 ` [PATCH v3 11/23] ata: libahci_platform: Introduce reset assertion/deassertion methods Serge Semin
2022-05-12 6:54 ` Hannes Reinecke
2022-05-11 23:17 ` [PATCH v3 12/23] dt-bindings: ata: ahci: Add platform capability properties Serge Semin
2022-05-12 6:56 ` Hannes Reinecke
2022-05-17 19:20 ` Rob Herring
2022-05-22 17:43 ` Serge Semin
2022-05-11 23:18 ` [PATCH v3 13/23] ata: libahci: Extend port-cmd flags set with port capabilities Serge Semin
2022-05-12 6:57 ` Hannes Reinecke
2022-05-12 15:05 ` Serge Semin
2022-05-13 8:22 ` Sergei Shtylyov
2022-05-13 12:13 ` Serge Semin
2022-05-11 23:18 ` [PATCH v3 14/23] ata: libahci: Discard redundant force_port_map parameter Serge Semin
2022-05-12 7:00 ` Hannes Reinecke
2022-05-11 23:18 ` [PATCH v3 15/23] ata: libahci: Don't read AHCI version twice in the save-config method Serge Semin
2022-05-12 7:00 ` Hannes Reinecke
2022-05-11 23:18 ` [PATCH v3 16/23] ata: ahci: Convert __ahci_port_base to accepting hpriv as arguments Serge Semin
2022-05-12 7:08 ` Hannes Reinecke
2022-05-11 23:18 ` [PATCH v3 17/23] ata: ahci: Introduce firmware-specific caps initialization Serge Semin
2022-05-12 7:05 ` Hannes Reinecke
2022-05-12 15:54 ` Serge Semin
2022-05-11 23:18 ` [PATCH v3 18/23] dt-bindings: ata: ahci: Add DWC AHCI SATA controller DT schema Serge Semin
2022-05-12 7:08 ` Hannes Reinecke
2022-05-17 20:04 ` Rob Herring
2022-05-22 17:51 ` Serge Semin
2022-05-11 23:18 ` [PATCH v3 19/23] ata: ahci: Add DWC AHCI SATA controller support Serge Semin
2022-05-12 7:09 ` Hannes Reinecke
2022-05-11 23:18 ` [PATCH v3 20/23] dt-bindings: ata: ahci: Add Baikal-T1 AHCI SATA controller DT schema Serge Semin
2022-05-12 7:10 ` Hannes Reinecke
2022-05-17 20:13 ` Rob Herring
2022-05-22 20:49 ` Serge Semin
2022-05-24 15:33 ` Rob Herring
2022-05-27 10:55 ` Serge Semin
2022-05-11 23:18 ` [PATCH v3 21/23] ata: ahci-dwc: Add platform-specific quirks support Serge Semin
2022-05-12 7:12 ` Hannes Reinecke
2022-05-12 16:29 ` Serge Semin
2022-05-14 0:30 ` kernel test robot
2022-05-11 23:18 ` [PATCH v3 22/23] ata: ahci-dwc: Add Baikal-T1 AHCI SATA interface support Serge Semin
2022-05-12 7:13 ` Hannes Reinecke
2022-05-11 23:18 ` [PATCH v3 23/23] MAINTAINERS: Add maintainers for DWC AHCI SATA driver Serge Semin
2022-05-12 7:16 ` Hannes Reinecke
2022-05-12 16:47 ` Serge Semin
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